Artículos de revistas: "Maxillary sinus graft"

1

Wang, Xuan, Tianqi Zhang, Enli Yang, Zhiyuan Gong, Hongzhou Shen, Haiwei Wu y Dongsheng Zhang. "Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method". Scanning 2020 (2 de octubre de 2020): 1–8. http://dx.doi.org/10.1155/2020/8419319.

Texto completo

Resumen

This study is aimed at determining the optimal sinus augmentation approach considering the poor bone condition in the zone of atrophic posterior maxilla. A series of simplified maxillary segment models varying in residual bone height (RBH) and bone quality were established. A 10 mm standard implant combined with two types of maxillary sinus augmentation methods was applied with the RBH, which was less than 10 mm in the maxilla. The maximal equivalent von Mises (EQV) stress in residual bone was evaluated. Bone quality had an enormous impact on the stress magnitude of supporting bone. Applying sinus augmentation combined with grafts was suitable for stress distribution, and high-stiffness graft performed better than low-stiffness one. For 7 mm and 5 mm atrophic maxilla, nongrafted maxillary sinus augmentation was feasible in D3 bone. Poor bone quality was a negative factor for the implant in the region of atrophic posterior maxilla, which could be improved by grafts. Meanwhile, the choice of maxillary sinus augmentation approaches should be determined by the RBH and quality.

Los estilos APA, Harvard, Vancouver, ISO, etc.

2

Jiang, Yanbo, Ming Gong, Donghui Chen, Jiaojie Li, Hailun Zhou, Yongfeng Lin y Li Tang. "Maxillary sinus pneumatization and augmentation: A three-dimensional finite element analysis". Materials Express 11, n.º 11 (1 de noviembre de 2021): 1892–900. http://dx.doi.org/10.1166/mex.2021.2087.

Texto completo

Resumen

This study aimed to explore the biomechanical behaviors of maxillary sinus elevation with bone grafts of various heights and widths using three-dimensional (3D) finite element analysis. We constructed 27 3D finite element models according to bone graft dimensions for three maxillary sinuses. These models were classified as (i) tapered, (ii) ovoid, and (iii) square. Each maxillary sinus type was analyzed with bone graft heights of 3 mm, 6 mm, and 9 mm and mesiodistal bone graft widths of 8 mm, 10 mm, and 12 mm. Different sinus pressure of 100 Pa, 500 Pa, and 1,000 Pa was applied to each aspect of the maxillary sinus. The maximum von Mises (max-VM) stress for each bone graft model was highest in the square group. The bone graft’s max-VM stress was decreased while increasing bone graft height from 3 to 9 mm in the tapered and square groups. In the ovoid group, the max-VM stress of all bone graft models decreased when the bone graft height increased from 3 to 6 mm. Thus 6 mm is the most appropriate bone graft height for all types of maxillary sinus elevation.

Los estilos APA, Harvard, Vancouver, ISO, etc.

3

Sharma, Ashu y G. R. Rahul. "Zygomatic Implants/Fixture: A Systematic Review". Journal of Oral Implantology 39, n.º 2 (1 de abril de 2013): 215–24. http://dx.doi.org/10.1563/aaid-joi-d-11-00055.

Texto completo

Resumen

Patients with moderate to severe atrophy challenge the surgeon to discover alternative ways to use existing bone or resort to augmenting the patient with autogenous or alloplastic bone materials. Many procedures have been suggested for these atrophied maxillae before implant placement, which include Le Fort I maxillary downfracture, onlay bone grafts and maxillary sinus graft procedures. A zygomatic implant can be an effective device for rehabilitation of the severely resorbed maxilla. If zygomatic implants are used, onlay bone grafting or sinus augmentation would likely not be necessary. The purpose of this article is to review the developments that have taken place in zygomatic implant treatment over years, including anatomic information for installing the zygomatic implants, implant placement techniques, stabilization, and prosthodontic procedures.

Los estilos APA, Harvard, Vancouver, ISO, etc.

4

Park, Won-Bae, Nam-Jun Cho y Philip Kang. "Tomographic Imaging of Mucociliary Clearance Following Maxillary Sinus Augmentation: A Case Series". Medicina 58, n.º 5 (18 de mayo de 2022): 672. http://dx.doi.org/10.3390/medicina58050672.

Texto completo

Resumen

Mucociliary clearance (MCC) allows ventilation of graft particles that are displaced through a perforated Schneiderian membrane during maxillary sinus augmentation (MSA). However, it is very rarely confirmed by cone-beam computed tomographic (CBCT) images. It is not yet known how long the dislodged bone graft particles remain in the maxillary sinus or how quickly they are ventilated after MSA. The purpose of these case reports is to introduce tomographic imaging of ventilation of bone graft particles displaced through a perforated Schneiderian membrane after MSA. Four patients, who needed implant placement in the posterior maxilla, received MSA, during which the Schneiderian membrane was perforated but was not repaired. Therefore, some bone graft particles were dislocated into the sinus cavity. The sizes of the perforated membranes were measured and recorded. CBCT scans were taken at multiple time points after the surgery to visualize and trace the ejected material. In addition, the time from when the bone graft substitute was delivered to the sinus until the CBCT scans were taken was recorded. The expelled bone graft particles migrated to the ostium along the sinus wall immediately after MSA on CBCT images taken immediately after the surgery. No displaced graft particles were observed in the maxillary sinus on CBCT scans after 1 week. The CBCT scans at 6 months showed no unusual radiographic images. Within the limitations of the case reports, tomographic imaging revealed an MCC system that allows displaced graft particles to be ventilated into the ostium very early during MSA healing and not stagnate in the maxillary sinus.

Los estilos APA, Harvard, Vancouver, ISO, etc.

5

Camargo Filho, Geraldo Prestes de, Luciana Corrêa, Claudio Costa, Claudio Mendes Pannuti, Rainer Schmelzeisen y João Gualberto de Cerqueira Luz. "Comparative study of two autogenous graft techniques using piezosurgery for sinus lifting". Acta Cirurgica Brasileira 25, n.º 6 (diciembre de 2010): 485–89. http://dx.doi.org/10.1590/s0102-86502010000600005.

Texto completo

Resumen

PURPOSE: Maxillary sinus lifting is a technique, in which, a possible complication is sinus membrane perforation. The aim of this study was to compare two techniques using ultrasound surgery to perform autogenous graft for maxillary sinus lifting. METHODS: Ten rabbits were used in the study, one of them did not undergo surgery. The other nine rabbits had their maxillary sinuses filled with autogenous bone grafts collected from the external skull diploe in particulate form on the right side, and shaved on the left side, both with ultrasonic device. Data on bone density in left and right maxillary sinus, obtained by computed tomography in transverse and longitudinal sections, recorded 90 days after the grafts, were statistically compared. RESULTS: There were no statistically significant differences between the two techniques that used shaved and particulate bone collected by means of ultrasonic device from rabbit skulls. CONCLUSION: Assessment of operative procedures led to the conclusion that piezoelectric ultrasound was shown to be a safe tool in the surgical approach to the maxillary sinus of rabbits, allowing sinus membrane integrity to be maintained during surgical procedures.

Los estilos APA, Harvard, Vancouver, ISO, etc.

6

Beatriz Cepeda De Romero, Arley Diaz Palacios, Adalberto De Jesús Atencia Romero y Giovana Lobelo Goméz. "Prevalence of complications of maxillary sinus grafts". International Journal of Multidisciplinary Research Updates 3, n.º 2 (30 de agosto de 2022): 011–16. http://dx.doi.org/10.53430/ijmru.2022.3.2.0048.

Texto completo

Resumen

Objective: Prevalence of complications of maxillary sinus grafts by reviewing medical records (2010-2020) in Implantology Oral. Method: Retrospective analytical research. Approved by the Ethics Committee as risk-free research. Clinical patients undergoing dental implant surgery, with any type of maxillary sinus graft (2010 – 2020), radiographic or tomographic controls of the maxillary sinus and clinical controls 8 -30 days post-surgery, sample 65. Variables: age, gender, systemic status, habits, date and type of surgery, type of graft, use of fibrin-rich (PRF) or platelet-rich (PRP) plasma, surgical technique (side window), simultaneous implant placement, periodontal status. complications: rupture of sinus membrane, displacement of the implant (sinus cavity), hemorrhage, hematoma, pain, edema, flushing, dehiscence suture, membrane exposure. Results: Sample 65: Women 39 (60%), average age 57.49 years, men 26 (40%) average age 57.85 years, non-smokers 58 (89%), absence of cardiovascular diseases 57 (87.7%), reduced periodontium 50 (76.9%). Used surgical technique "Side window" 56 patients (86.15%), rupture of the sinus membrane 17 (26.15%); did not need growth factor46 (73.85%), use of alloplastic graft (29.23%). At 30 days absence of: pain (96.92%), edema (95.38%), hematoma (96.92), tissue dehiscence (96.92), no displacement of the implants (100%) There was no significant association between the surgical technique and the presence of each of the complications (Chi square p= 0.606), (Pearson p=0.332), with no significant association between growth factor use and complications (Chi square p=2.131), (Pearson p=4.9996). Conclusion: Rupture of the sinus membrane is the intraoperative complication with the highest prevalence (26.15%) in maxillary sinus graft surgeries, with the lateral window technique.

Los estilos APA, Harvard, Vancouver, ISO, etc.

7

Bernardello, Fabio, Teresa Lombardi y Claudio Stacchi. "Clearance of Bone Substitute in Gel Form Accidentally Dispersed into the Sinus Cavity during Transcrestal Maxillary Sinus Floor Elevation: Two-Case Report". Sinusitis 5, n.º 2 (27 de octubre de 2021): 132–40. http://dx.doi.org/10.3390/sinusitis5020014.

Texto completo

Resumen

Sinus membrane perforation is the most frequent intraoperative complication occurring during maxillary sinus floor elevation. Although numerous techniques for perforation management are present, grafting material dissemination may still occur, representing a potential trigger factor leading to acute or chronic sinusitis. This case report describes two cases of xenogeneic bone substitute in gel form accidentally dispersed into the sinus cavity during maxillary sinus floor elevation with a transcrestal approach. In both cases, immediately postoperative radiographic imaging showed an important amount of gel graft dislodged into the sinus cavity as a consequence of hidden perforations that remained undetected during surgery. Patients were monitored for 6 months after surgery and reported no signs or symptoms related to possible sinus disease. Control radiographs showed no sinus membrane hypertrophy and/or presence of residual disseminated gel, confirming complete clearance of the accidentally dispersed graft through the ostiomeatal complex. In order to minimize postoperative complications, bone substitutes in gel form could represent an interesting alternative to granular grafts for their easier clearance from the maxillary sinus cavity in case of accidental dissemination during sinus augmentation procedures.

Los estilos APA, Harvard, Vancouver, ISO, etc.

8

OLIVEIRA, Ronaldo Andrade Figueiredo de, Maria Cristina PEDRAZINI y Thomaz WASSALL. "Relative area measurement of maxillary sinus by computed tomography". RGO - Revista Gaúcha de Odontologia 62, n.º 2 (junio de 2014): 111–16. http://dx.doi.org/10.1590/1981-863720140002000012556.

Texto completo

Resumen

OBJECTIVE: To evaluate the relative area of the maxillary sinus in edentulous posterior maxilla with regard to linear area, bone septa and sinus pathologies. METHODS: A retrospective longitudinal study was conducted of tomographic exams in 60 individuals between 35 and 75 years of age, with the inclusion criteria being the uni- or bilateral edentulous posterior maxilla. Measurements were taken by the program in 101 maxillary sinuses. The horizontal and vertical measurements of each sinus were multiplied and resulted in a linear area in mm2. RESULTS: Of the 101 maxillary sinuses evaluated, 14 presented sinus pathologies (13.86%) and 22 (21.78%) with bone septa. The mean mesio distal distance was 38.4 mm (p ≤ 0.05), mean height 34. 5 mm (p ≤ 0.05) and mean linear area of 1335.88 mm² (p = 0.05). The Student's-t and analysis of variance (ANOVA) tests were applied for statistical analysis There were no statistically significant difference in the height and width of the edentulous maxillary sinuses between genders, but there was a variation in the linear area and the finding of the presence of bone septa and sinus pathologies. CONCLUSION: The conclusion of this study corroborates those of previous study about the need for imaging exams with the purpose of obtaining information about the dimensions of the maxillary sinus, as guidance with regard to the quantity of graft material, choice of donor region, and presence of septa. These data serve as guidance in the sinus lift technique and the presence of sinus pathologies, which involve treatment before bone graft surgeries.

Los estilos APA, Harvard, Vancouver, ISO, etc.

9

Chaves, Lucas Lenyn Vieira, Lucas P. Lopes Rosado, Saulo Machado Piccolo, Liana Matos Ferreira, Kivanç Kamburoglu, Rafael Binato Junqueira, Maurício Augusto Aquino de Castro y Francielle Silestre Verner. "Evaluation of the Maxillary Sinus of Patients with Maxillary Posterior Implants: A CBCT Cross-Sectional Study". Diagnostics 12, n.º 12 (15 de diciembre de 2022): 3169. http://dx.doi.org/10.3390/diagnostics12123169.

Texto completo

Resumen

Background: During oral rehabilitation, dental implants in the posterior maxilla can penetrate the maxillary sinus. The aim was to evaluate the presence of maxillary sinus abnormalities in patients with dental implants in the posterior maxillary region using cone-beam computed tomography (CBCT) images. Materials and Methods: This was a retrospective cross-sectional study, and CBCT scans of 199 patients (459 dental implants) were evaluated. Implants were assessed according to their relative location to the maxillary sinus floor (up to 2 mm from the maxillary sinus cortex, within 2 mm to intimate contact with the maxillary sinus cortex, apical third inside the maxillary sinus, two-thirds or more inside the maxillary sinus) and bone-fixation tissue (Alveolar ridge or Bone graft). Maxillary sinus abnormalities were classified. Kappa and Weighted Kappa and the Kruskal–Wallis test were applied. Results: A higher prevalence of mucosal thickening and non-specific opacification were observed in implants located within 2 mm to intimate contact with the cortex of the maxillary sinus floor. Of the 66 implants with apical thirds located inside the maxillary sinus, 31 (46.7%) were associated with sinus abnormalities and of all implants (n = 5) with two-thirds or more located inside the maxillary sinus, all of these were associated with sinus abnormalities. No association was observed in relation to implant bone-fixation tissue. Conclusions: This study found a significant association between dental implant placement near or within the sinus and sinus abnormalities, mainly mucosal thickening and non-specific opacification.

Los estilos APA, Harvard, Vancouver, ISO, etc.

10

Al-Noori, Noor Mohammed y Fatima Ali Makawi. "Techniques and Graft Materials Used in Maxillary Sinus Lift Procedure for Dental Implant Placement". European Journal of Dental and Oral Health 3, n.º 4 (31 de agosto de 2022): 6–10. http://dx.doi.org/10.24018/ejdent.2022.3.4.198.

Texto completo

Resumen

Posterior quadrant of the maxilla consider as special challenges for use of implant active prostheses to restore dental function. Placement of Implant in the posterior part of maxilla influence hesitation due to the lack of sufficient alveolar bone height. This occurs due to the proximity of alveolar crest to the maxillary sinus because of sinus pneumatization, along with resorption of bone of the alveolar ridge secondary to tooth extraction, pathological lesion or trauma. Sinus lifting to augment atrophic maxillary posterior area to create space for implantation has been progressively widespread in latest years. In literatures 2 approaches have been designated for sinus lifting: the direct approach called also lateral approach and the indirect approach called also crestal approach.

Los estilos APA, Harvard, Vancouver, ISO, etc.

11

Andrade, Neelam Noel, Smriti Choradia y C. Natarajan. "Rehabilitation of Maxillary Posterior Edentulism with Direct Antroplasty and Dental Implants: A comparative analysis of two different types of bone grafts". Nair Hospital Dental college Journal of Contemporary Dentistry 1 (18 de diciembre de 2021): 15–18. http://dx.doi.org/10.56136/nhdcjcd/2021_00004.

Texto completo

Resumen

Aims - To determine the difference in the amount of bone generated from two different sites for bilateral maxillary sinus augmentation. Introduction-Rehabilitation of the edentulous posterior maxilla with an implant supported prosthesis is a commonly occurring challenge in dental practice. Objectives - Achieving adequate height of alveolar bone for placing dental implants requires uplifting of the sinus lining in many such cases. This is generally done by harvesting bone grafts from various sites and placing it in the defect created after raising the sinus lining thus restoring the height and width of residual alveolar bone. Objectives - To determine if regional sites of bone graft harvest are equally effective when compared with distant site. Material & Methods - In this series, out of 3 of our patients, two received autologous chin grafts and one patient received PCBM graft from the iliac crest. In all 3 patients, implants were placed in the second stage. Results -Acomparative analysis of the feasibility of the two techniques which involves bone grafts from two sites which have different quality of bone available over the end outcome was done and it was found that the quality of bone available for implant placement was almost the same irrespective of the graft harvest site. Conclusion - It can be safely concluded chin graft is a viable alternative to cortico-cancellous bone graft in cases of direct sinus lift procedures with minimal issues of donor site morbidity.

Los estilos APA, Harvard, Vancouver, ISO, etc.

12

Bordin, Dimorvan, Mariane Boaventura de Castro, Marco Aurélio de Carvalho, Anderson Macena de Araujo, Altair Antoninha Del Bel Cury y Priscilla Cardoso Lazari-Carvalho. "Different Treatment Modalities Using Dental Implants in the Posterior Maxilla: A Finite Element Analysis". Brazilian Dental Journal 32, n.º 1 (febrero de 2021): 34–41. http://dx.doi.org/10.1590/0103-6440202103890.

Texto completo

Resumen

Abstract The objective of this study was to compare the biomechanical behavior of peri-implant bone tissue and prosthetic components in two modalities of treatment for posterior region of the maxilla, using short implants or standard-length implants associated with bone graft in the maxillary sinus. Four 3D models of a crown supported by an implant fixed in the posterior maxilla were constructed. The type of implant: short implant (S) or standard-length implant with the presence of sinus graft (L) and type of crown retention: cemented (C) or screwed (S) were the study factors. The models were divided into SC- cemented crown on a short implant; SS- screwed crown on the short implant; LC- cemented crown on a standard-length implant after bone graft in the maxillary sinus and LS- crown screwed on a standard-length implant after bone graft in the maxillary sinus. An axial occlusal loading of 300 N was applied, divided into five points (60N each) corresponding to occlusal contact. The following analysis criteria were observed: Shear Stress, Maximum and Minimum Main Stress for bone tissue and von Mises Stress for the implant and prosthetic components. The use of standard-length implants reduced the shear stress in the cortical bone by 35.75% and the medullary bone by 51% when compared to short implants. The length of the implant did not affect the stress concentration in the crown, and the cement layer acted by reducing the stresses in the ceramic veneer and framework by 42%. Standard-implants associated with cemented crowns showed better biomechanical behavior.

Los estilos APA, Harvard, Vancouver, ISO, etc.

13

Kim, Ji Hyoung, Hyo Joon Kim, Ye Joon Jo, Jun Seok Choi y Seong Yong Moon. "3D Volumetric Analysis and Anatomical Considerations for Sinus Bone Graft". Applied Sciences 11, n.º 3 (21 de enero de 2021): 951. http://dx.doi.org/10.3390/app11030951.

Texto completo

Resumen

The aim of this study is to evaluate anatomical considerations and assess the volume of the maxillary sinus bone graft. There were sixty-three patients (eighty-three sinuses) who had taken CT scans for implant surgery. Patients included those whose height of the residual alveolar bone was less than 5 mm. The position of posterior superior alveolar artery, the thickness of the maxillary sinus wall, and the volume of the maxillary sinus according to the amount of sinus floor elevation were measured. The mean vertical distance of posterior superior alveolar artery was 11.91 ± 4.79 mm from 3.03 mm to 24.05 mm. The mean thickness of the lateral wall was 1.71 ± 0.55 mm in the range of 0.74 mm to 3.93 mm. The volume of 3 mm, 5 mm, 7 mm, and 10 mm from the sinus floor was 0.173 ± 0.11 cm3, 0.526 ± 0.25 cm3, 1.068 ± 0.43 cm3, and 2.184 ± 0.74 cm3 on average, respectively. The knowledge of the posterior superior alveolar artery position, the lateral wall thickness, and the volume of the maxillary sinus can help the clinician for sinus bone graft.

Los estilos APA, Harvard, Vancouver, ISO, etc.

14

Moy, Peter K., Stefan Lundgren y Ralph E. Holmes. "Maxillary sinus augmentation: Histomorphometric analysis of graft materials for maxillary sinus floor augmentation". Journal of Oral and Maxillofacial Surgery 51, n.º 8 (agosto de 1993): 857–62. http://dx.doi.org/10.1016/s0278-2391(10)80103-x.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

15

Acocella, Alessandro, Roberto Sacco, Paolo Nardi y Tommaso Agostini. "Early Implant Placement in Bilateral Sinus Floor Augmentation Using Iliac Bone Block Grafts in Severe Maxillary Atrophy: A Clinical, Histological, and Radiographic Case Report". Journal of Oral Implantology 35, n.º 1 (1 de enero de 2009): 37–44. http://dx.doi.org/10.1563/1548-1336-35.1.37.

Texto completo

Resumen

Abstract Effectively restoring a grossly atrophic maxilla can be difficult for the implant surgeon. The placement of dental implants in patients who are edentulous in the posterior maxilla can present difficulties because of deficient posterior alveolar ridge and increased pneumatization of the maxillary sinus, resulting in a minimal hard tissue bed. Implant placement requires adequate quality and quantity of bone, especially in the posterior maxilla. Insufficient bone height and width in this area of the maxilla, because of expansion of the maxillary sinus and atrophic reduction of the alveolar ridge, represents a contraindication for conventional insertion of dental implants. The reconstruction of edentulous patients with adequate bone volume and density by the use of bone graft and, subsequently, the placement of dental implants has become a viable treatment option with high predictability. It is commonly shared that autologous bone graft is the gold standard grafting method in the augmentation of Higmoro antrum and in any kinds of guided bone regeneration. In this article, the authors report a case of severe maxillary atrophy that is augmented by block bone graft harvested from iliac crest. An early placement of implants is possible due to the quick healing of the site, as proven by histologic examinations.

Los estilos APA, Harvard, Vancouver, ISO, etc.

16

Hwang, Jae Woong, Mun Soo Han, Sung Hoon Kang, Ji Won Kwak, Hyun Keun Kim, Tae Hoon Kim y Sang Hag Lee. "Long-Term Outcomes of Nasoseptal Perforation Repair Using Anterior Maxillary Sinus Wall as an Interpositional Graft". American Journal of Rhinology & Allergy 36, n.º 2 (12 de octubre de 2021): 238–44. http://dx.doi.org/10.1177/19458924211049608.

Texto completo

Resumen

Background Various graft materials have been used to repair nasoseptal perforation, but there is no standardized treatment method. The anterior maxillary sinus wall is flattened in appearance and can be easily obtained in a sufficient amount for a large-sized nasoseptal perforation. Objectives The aim of this study is to determine whether the anterior maxillary sinus wall is suitable as an interpositional graft in the surgical repair of septal or nasoseptal perforation. Methods This is a retrospective review of 21 patients who underwent repair of nasoseptal perforation using anterior maxillary sinus wall as an interpositional graft. The etiology, pre- and post-operative NOSE and GBI score, and perforation size were reviewed. The surgical outcome was considered successful if total closure was achieved after postoperative follow-up. Results 19 of the 21 perforations were successfully repaired with anterior maxillary sinus wall. Failure of the repair was found in 2 patients. Causal etiology of perforation was previous septoplasty in 10 patients, and electrocautery in 1 case, but not identified in 10 cases. The largest size was 2.7 × 2.2 cm. The most common symptoms were epistaxis, crusting, and nasal obstruction. Closure of septal perforation resulted in improved subjective symptoms and quality of life which were evaluated with NOSE and GBI score. Conclusion Anterior maxillary sinus wall as interpositional graft between mucoperichondrial flaps can be used to reliably repair nasoseptal perforations.

Los estilos APA, Harvard, Vancouver, ISO, etc.

17

Baek, Jae-Ha, Byung-Ock Kim y Won-Pyo Lee. "Implant Placement after Closure of Oroantral Communication by Sinus Bone Graft Using a Collagen Barrier Membrane in the Shape of a Pouch: A Case Report and Review of the Literature". Medicina 57, n.º 6 (16 de junio de 2021): 626. http://dx.doi.org/10.3390/medicina57060626.

Texto completo

Resumen

Oro-antral communication (OAC) acts as a pathway for bacteria between the maxillary sinus and oral cavity, and is a common complication after the removal of a dental implant or extraction of a tooth from the maxillary posterior area. In the case of an untreated OAC, oro-antral fistula develops and becomes epithelialized. We aimed to introduce a treatment for OAC closure via a sinus bone grafting procedure using bone tacks and a collagen membrane with an allograft. The procedure was performed by applying an absorbable membrane made in pouch form. This membrane acted as a barrier for closing the large sinus membrane perforation. Bone tacks were used to fix the membranes. Subsequently, the maxillary sinus was filled with the allograft, and the absorbable membrane was reapplied. Primary closure was achieved by performing a periosteum-releasing incision for a tension-free suture. After 6 months, sufficient bone dimensions were gained without any occurrence of maxillary sinusitis or recurrence of OAC. Additional bone grafts and implantation could be performed to rehabilitate the maxillary posterior area. We conclude that this technique might be a useful treatment for reconstructing the maxillary posterior area with simultaneous sinus bone graft and OAC closure.

Los estilos APA, Harvard, Vancouver, ISO, etc.

18

Manoharan, Suhas, Revathi Duraisamy, Sindhuja Devi S y Santhosh Kumar M P. "Techniques and Graft Materials used in Maxillary Sinus Lift Procedure for Dental Implant Placement – A Review". International Journal of Research in Pharmaceutical Sciences 11, n.º 2 (14 de abril de 2020): 1787–92. http://dx.doi.org/10.26452/ijrps.v11i2.2081.

Texto completo

Resumen

Maxillary sinus is the first paranasal sinuses to develop, which is pyramidal in shape and it completes developing around 20 years of age with the eruption of the maxillary third molars. Pneumatization of the maxillary sinus occurs with time. Tooth loss may lead to loss of bone density, atrophy of bone and further pneumatization of the maxillary sinus leading to insufficient quality and quantity of bone for placing implants. Despite lots of literature and research being done, there is no clarity in obtaining consensus regarding the techniques and materials used in maxillary sinus lift procedures. This article reviews the various techniques and bone graft materials used in maxillary sinus lift procedures. The techniques include lateral window approach, hydraulic sinus lift technique, Piezoelectric Surgery technique, Transcrestal Approach, Osteotome Technique, and Balloon elevation technique. It can be concluded that the balloon antral elevation technique and Hydraulic Sinus Lift technique are more efficient techniques for maxillary sinus lift procedures. These techniques are known to result inless perforations, less chair-side time, comparatively easier, and the need for elaborate instrumentation is minimized. It can also markedly increase the success rates of implants in contrast to the conventional techniques which pose greater risks to the patient, more soft tissue trauma, more chair-side time and can expose patients to infections.

Los estilos APA, Harvard, Vancouver, ISO, etc.

19

Kim, K. y E. Lee. "Management of sinus membrane perforation in maxillary sinus graft procedures". International Journal of Oral and Maxillofacial Surgery 40, n.º 10 (octubre de 2011): 1130. http://dx.doi.org/10.1016/j.ijom.2011.07.352.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

20

Saad, Daniel, Celine Moukarzel, Naim El Haddad y Anthony Rizk. "A Suggested Approach of Managing Excessive Maxillary Gingival Display in Terminal Dentition". Case Reports in Dentistry 2020 (19 de noviembre de 2020): 1–11. http://dx.doi.org/10.1155/2020/6975275.

Texto completo

Resumen

The aim of this paper is to report a suggested approach for the management of excessive maxillary gingival display with terminal dentition. A segmental osteotomy of the maxillary process was performed, and the latter used as grafting material for lateral sinus augmentation that was performed simultaneously. Following the graft maturation period, implants were inserted and rehabilitated with a fixed dentogingival prosthesis. Consequently, the mandible was prosthetically restored following the new occlusal plane dictated by the rehabilitated maxilla. Clinically, the procedure showed a drastic improvement in the patient’s appearance, eliminating the excessive gingival display. Radiologically, it led to a vertical translation of the maxillary process level in an apical direction. Nevertheless, the resected process used as grafting material was noticed to have a suboptimal behavior as long as it showed increased intrasinusal resorption, barely sufficient for a regular implant accommodation. The described therapy concept seems to be a plausible approach when it comes to manage excessive maxillary gingival displays in edentulous patients or those presenting a terminal dentition. However, at the time of sinus augmentation, authors recommend to graft a mixture of resected maxillary process and a bone substitute material, in order to get more stable results.

Los estilos APA, Harvard, Vancouver, ISO, etc.

21

Correia, Francisco, Sónia Alexandre Gouveia, Daniel Humberto Pozza, António Campos Felino y Ricardo Faria-Almeida. "A Randomized Clinical Trial Comparing Implants Placed in Two Different Biomaterials Used for Maxillary Sinus Augmentation". Materials 16, n.º 3 (31 de enero de 2023): 1220. http://dx.doi.org/10.3390/ma16031220.

Texto completo

Resumen

The objective of this study was to compare marginal bone loss, surgical and clinical complications, and dental implant survival rate in bilateral maxillary sinus augmented by autologous or porcine xenograft. A randomized controlled clinical trial using split-mouth design enrolled 12 consent adult patients (59.7 ± 8.7 years), who received bilateral maxillary sinus floor augmentation for oral rehabilitation with implant-supported prosthesis. Each patient received both the autologous bone from the mandible (control) or porcine xenograft (test) during the random bilateral sinus lift surgery. A total of 39 dental implants were placed in the posterior maxilla of the 12 patients after 6 months, being rehabilitated after the respective osseointegration period. Both graft materials demonstrated a high implant survival rate at 12 months: 95% for the xenograft side, only 1 implant without osseointegration, and 100% for the autologous side. Radiographic bone loss was low and similar for both groups: control group with a mean of 0.063 ± 0.126, and test group with a mean of 0.092 ± 0.163. No major surgical-related complications have occurred. Only one patient had several prosthetic complications due to fractures of prosthetic components. The maxillary sinus augmentation procedure, both with autologous bone and porcine xenograft materials, is an excellent clinical option procedure for the prosthetic rehabilitation of atrophic maxillae, with low marginal bone loss after one year follow-up, few clinical complications, and a high implant survival rate.

Los estilos APA, Harvard, Vancouver, ISO, etc.

22

Gultekin, B. Alper, Oguz Borahan, Ali Sirali, Z. Cuneyt Karabuda y Eitan Mijiritsky. "Three-Dimensional Assessment of Volumetric Changes in Sinuses Augmented with Two Different Bone Substitutes". BioMed Research International 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/4085079.

Texto completo

Resumen

Introduction. The bone volume of the posterior maxilla may not be appropriate for implant placement, due to factors such as pneumatized maxillary sinus. The purpose of this study was to evaluate the percentage of graft volume reduction following sinus floor elevation (SFE), with either slow resorbable bone substitute only or a composite of slow and fast resorbable bone substitutes, using cone beam computed tomography (CBCT).Materials and Methods. In this retrospective study, CBCT scans of SFE procedures were evaluated to determine the volume of grafted sinus with either deproteinized bovine bone (DBB) or a 2 : 1 mixture of biphasic calcium sulfate (CS) and DBB, as a composite. The volumetric changes of sinus augmentations were measured 2 weeks (V-I) and 6 months (V-II) after operation.Results. Thirty-three patients were included in this study. The average percentage volume reduction was9.39±3.01% and17.65±4.15% for DBB and composite grafts, respectively. A significant graft volume reduction was observed between V-I and V-II for both groups (p<0.01). The DBB group exhibited significantly less volume reduction than the composite group (p<0.01).Conclusions. Augmented sinus volume may change before implant placement. DBB offers greater volume stability during healing than composite grafts.

Los estilos APA, Harvard, Vancouver, ISO, etc.

23

Jo, Kyu-Hong, Kyu-Ho Yoon, Jeong-Kwon Cheong y In-Seong Jeon. "Postoperative Perforation of the Schneiderian Membrane in Maxillary Sinus Augmentation: A Case Report". Journal of Oral Implantology 40, S1 (1 de julio de 2014): 375–79. http://dx.doi.org/10.1563/aaid-joi-d-11-00201.

Texto completo

Resumen

Perforation of the Schneiderian membrane constitutes a major intraoperative complication of maxillary sinus floor elevation with graft materials, but postoperative perforation of the sinus membrane is very rare. This case report demonstrates that conservative treatment involving drainage and the administration of systemic antibiotics can be used to successfully treat postoperative sinus membrane perforation with infection of the graft material.

Los estilos APA, Harvard, Vancouver, ISO, etc.

24

Comuzzi, Luca, Margherita Tumedei, Adriano Piattelli, Gianluca Tartaglia y Massimo Del Fabbro. "Radiographic Analysis of Graft Dimensional Changes in Transcrestal Maxillary Sinus Augmentation: A Retrospective Study". Materials 15, n.º 9 (19 de abril de 2022): 2964. http://dx.doi.org/10.3390/ma15092964.

Texto completo

Resumen

Background. The maxillary sinus lift is a popular and predictable technique associated with implant-supported rehabilitation of the severely atrophic maxilla. The aim of the present retrospective study was to investigate the effectiveness of transcrestal maxillary sinus augmentation and the graft resorption pattern using different heterologous bone substitutes. Methods. A total of 75 sinus-grafting procedures were performed and 89 implants were placed in 66 patients, 24 males and 42 females, with mean age 67.9 ± 10.64 years (range 43–84 years). Nineteen subjects were smokers. The mean follow-up period was 93.33 ± 54.71 months (range 14–240 months). Clinical and radiographical evaluations were performed. Graft height and width were measured at baseline and at the latest follow-up. Results. Mesiodistal and vertical resorption averaged 9.3 ± 20.7% (standard deviation), and 5.04 ± 9.9% of the postoperative size, respectively, considering the graft as the unit. Linear regression analysis showed that graft resorption in both the vertical and the mesiodistal dimension is independent of the follow-up time. Conversely, there was a trend for greater resorption when increasing the postoperative graft size, in both vertical (p = 0.001) and horizontal (p = 0.007) dimensions. When grouping the dimensional changes by graft particle size (only small (<300 μm) particles, combination of small and medium (>500 μm)/large (>1000 μm) particles, and only medium/large particles), there was a trend for greater resorption associated with smaller particles, but it was not significant; neither in the mesiodistal nor in the vertical dimension (p = 0.17 and p = 0.25, respectively). No implant was lost during the observation period. In conclusion, the transcrestal technique for maxillary sinus augmentation documented a high level of predictability. The low clinical morbidity and the contextual dental implant positioning is clinically useful in relation to a significant reduction of the time required for implant restoration, a consistent decrease of the number of surgical phases, and a cost-effectiveness approach for the rehabilitation. The graft resorption pattern in all cases was compatible with persistent implant protection and support.

Los estilos APA, Harvard, Vancouver, ISO, etc.

25

Munakata, Motohiro, Noriko Tachikawa, Yoko Yamaguchi, Minoru Sanda y Shohei Kasugai. "The Maxillary Sinus Floor Elevation Using a Poly-L-Lactic Acid Device to Create Space Without Bone Graft: Case Series Study of Five Patients". Journal of Oral Implantology 42, n.º 3 (1 de junio de 2016): 278–84. http://dx.doi.org/10.1563/aaid-joi-d-14-00250.

Texto completo

Resumen

Maxillary sinus floor elevation using autologous or alloplastic bone grafting is often performed for implant treatment of maxillary molars; however, issues related to the donor site and complications such as infection have been reported. We performed maxillary sinus floor elevation using poly-L-lactic acid (PLLA) as a space-making material in patients with an insufficient bone mass (<3 mm) for simultaneous implantation between the alveolar crest and floor of the maxillary sinus and evaluated the newly formed bone. Conventional antrostomy of the maxillary sinus from the lateral wall was performed, and PLLA was placed on the floor of the maxillary sinus after elevating the sinus membrane. Six months after surgery, the bone mass and density were measured using quantitative computed tomography, and histological evaluation was performed. No complications were recorded. Radiological findings showed a bone-like radiopaque appearance, and histological examination revealed new bone formation in all patients. In cases with insufficient bone mass prior to simultaneous implant placement, this method of maxillary sinus augmentation allows for sufficient bone augmentation without bone grafting.

Los estilos APA, Harvard, Vancouver, ISO, etc.

26

Zimbler, Marc S., Richard A. Lebowitz, Robert Glickman, Lawrence E. Brecht y Joseph B. Jacobs. "Antral Augmentation, Osseointegration, and Sinusitis: The Otolaryngologist's Perspective". American Journal of Rhinology 12, n.º 5 (septiembre de 1998): 311–16. http://dx.doi.org/10.2500/105065898780182381.

Texto completo

Resumen

Osseointegrated dental implants are a widely used method of replacing lost or missing teeth. Resorption of the alveolar ridge of the edentulous posterior maxilla may necessitate augmentation before osseointegration to provide adequate bone for implant fixation. This can be accomplished through an intraoral approach to the maxillary sinus, with elevation of the mucosa of the sinus floor creating a pocket for graft placement. Disruption of the intact sinus mucosa may result in sinusitis, graft infection, or extrusion with secondary formation of an oroantral communication. To treat these patients effectively, the otolaryngologist must be aware of the techniques of sinus augmentation and osseointegration as well as the etiology of associated complications. We will discuss the management of four patients with significant sinus complications, and evaluate the otolaryngologist's role in the preoperative and postoperative care of these patients.

Los estilos APA, Harvard, Vancouver, ISO, etc.

27

Romero-Millán, Javier, Luis Martorell-Calatayud, Maria Peñarrocha y Berta García-Mira. "Indirect Osteotome Maxillary Sinus Floor Elevation: An Update". Journal of Oral Implantology 38, n.º 6 (1 de diciembre de 2012): 799–804. http://dx.doi.org/10.1563/aaid-joi-d-11-00160.

Texto completo

Resumen

The objective was to review publications on indirect osteotome maxillary sinus floor elevation (OMSFE) procedures. Studies published between 1999 and 2010 on patients with a minimum of 1 year of follow-up were analyzed. Fourteen studies were included. Indirect OMSFE is indicated for a bone height of 6–8 mm. More bone height was gained when graft material was used. Schneiderian membrane perforation was the most frequent complication. Survival rates varied between 93.5% and 100%. Osteotome sinus membrane elevation is a predictable and effective procedure for placing implants in areas of the posterior maxilla with low bone height.

Los estilos APA, Harvard, Vancouver, ISO, etc.

28

Abdel-Wahed, Nagla'a A. y Maha Ahmed Bahammam. "Cone Beam CT-Based Preoperative Volumetric Estimation of Bone Graft Required for Lateral Window Sinus Augmentation, Compared with Intraoperative Findings: A Pilot Study". Open Dentistry Journal 12, n.º 1 (25 de octubre de 2018): 820–26. http://dx.doi.org/10.2174/1874210601812010820.

Texto completo

Resumen

Introduction: The presence of an atrophic maxilla creates a serious challenge in cases of implant placement, while maxillary sinus pneumatization further complicates the surgery. This pilot study was performed to investigate the validity of two techniques used to estimate the volumes of bone graft material required in cases that included lateral window sinus augmentation. Materials and Methods: Cone beam computed tomography was used for preoperative volumetric analysis of the maxillary sinus. The analysis was performed using the manual measurement of sinus dimensions, as well as automated measurements via the segmentation technique. The estimated volumes of required bone graft material were compared with actual intraoperative findings in cases requiring lateral window sinus augmentation. For this pilot study, only 5 patients were selected to be included. Results: To achieve 80% power and confidence interval of 95%, the sample size should be 35 patients. The correlation coefficient between the segmented volume and mm3 used was – 0.5332, whereas the coefficient between the manual volume and mm3 used was – 0.6784. Consequently, both results indicate that the two methods have a moderate negative correlation with the mm3 used. Conclusion: Performing a similar study with an increased number of patients, according to the calculated sample size, increases the possibility of revealing higher correlation between the methods used to analyze the partial volume of the sinus cavity. The estimated sinus volume of the area of augmentation, obtained by using either manual or segmentation techniques, could be considered as a maximum estimate for the required amount of graft material. Furthermore, the segmentation technique may be valuable in preoperative planning of sinus augmentation, as it reveals the topographic shape and morphology of the sinus.

Los estilos APA, Harvard, Vancouver, ISO, etc.

29

Kasabah, Samer, Jiří Krug, Antonín Šimůnek y Miguel Cevallos Lecaro. "Can We Predict Maxillary Sinus Mucosa Perforation?" Acta Medica (Hradec Kralove, Czech Republic) 46, n.º 1 (2003): 19–23. http://dx.doi.org/10.14712/18059694.2019.4.

Texto completo

Resumen

This study was carried out to evaluate the prevalence of sinus mucosa perforation occurred during maxillary sinus mucosa elevation surgery, its relation to objective conditions and to the causative medical history, and its influence on postoperative sinusitis, as well. One hundred and forty-six sinus lift procedures have been evaluated in 118 patients. The prevalence of the sinus mucosa perforation was evaluated and subdivided into four groups according to its size and way of treatment. No relation was observed between the perforation and the presence of sinus septa, smoking, radiographic thickening and cyst-like lesions of the maxillary sinus, and previous sinus allergy (P<0.05). Despite of high prevalence of the perforation of the mucosa (56.16%), no signs of bone graft infection or maxillary sinusitis were noted in any of our patient.

Los estilos APA, Harvard, Vancouver, ISO, etc.

30

Molon, Rafael Scaf de, Wagner Nunes de Paula, Rubens Spin-Neto, Mario Henrique Arruda Verzola, Guilherme Monteiro Tosoni, Raphael Carlos Comelli Lia, Gulnara Scaf y Elcio Marcantonio Jr. "Correlation of Fractal Dimension with Histomorphometry in Maxillary Sinus Lifting Using Autogenous Bone Graft". Brazilian Dental Journal 26, n.º 1 (febrero de 2015): 11–18. http://dx.doi.org/10.1590/0103-6440201300290.

Texto completo

Resumen

The aim of this study was to determine the pattern of bone remodeling after maxillary sinus lifting in humans by means of fractal dimension (FD) and histomorphometric analysis. Therefore, the correlation between FD and the histomorphometric findings was evaluated. Sixteen patients with posterior edentulous maxilla were enrolled in this study. Maxillary sinus lifting was performed using autogenous bone grafted from the mandibular retromolar area. Three direct digital panoramic radiographs were obtained: before surgery (Group 1), immediately postoperatively (Group 2) and after 6 months of healing (Group 3) for FD analysis. Biopsies were taken after 6 months, processed and submitted to histological and histomorphometric analysis. Data were analyzed by Shapiro-Wilk test and ANOVA test followed by a Tukey test (a=0.05). The bone volume fraction of newly trabecular bone (TB) and medullary area (MA) was measured as 62.75%±17.16% and 37.25±17.16%, respectively. Significant difference in FD analysis was measured between Group 1 and Group 3. No significant difference was found in the correlation between FD and histomorphometric analysis for TB and MA (p=0.84). In conclusion, all performed analyses were effective in assessing the bone-remodeling pattern in the maxillary sinus, offering complementary information about healing and predictable outcomes. There were no correlations between FD and histomorphometric analysis.

Los estilos APA, Harvard, Vancouver, ISO, etc.

31

Cruz, Adriana Dibo, Guilherme Alvares Peixoto, Marcelo Freitas Aguiar, Gabriela Alessandra Cruz Galhardo Camargo y Nicolas Homs. "Surgeons’ Performance Determining the Amount of Graft Material for Sinus Floor Augmentation Using Tomography". Brazilian Dental Journal 28, n.º 3 (junio de 2017): 385–90. http://dx.doi.org/10.1590/0103-6440201601442.

Texto completo

Resumen

Abstract This study aimed to assess the performance of surgeons in determining the amount of graft material required for maxillary sinus floor augmentation in a preoperative analysis using cone-beam computed tomography images. A convenience sample of 10 retrospective CBCT exams (i-CAT®) was selected. Scans of the posterior maxilla area with an absence of at least one tooth and residual alveolar bone with an up to 5 mm height were used. Templates (n=20) contained images of representative cross-sections in multiplanar view. Ten expert surgeons voluntarily participated as appraisers of the templates for grafting surgical planning of a 10 mm long implant. Appraisers could choose a better amount of graft material using scores: 0) when considered grafting unnecessary, 1) for 0.25 g in graft material, 2) for 0.50 g, 3) for 1.00 g and 4) for 1.50 g or more. Reliability of the response pattern was analyzed using Cronbach’s a. Wilcoxon and Mann-Whitney tests were performed to compare scores. Regression analysis was performed to evaluate whether the volume of sinuses (mm3) influenced the choose of scores. In the reliability analysis, all values were low and the score distribution was independent of the volume of the maxillary sinuses (p>0.05), which did not influence choosing the amount of graft material. Surgeons were unreliable to determine the best amount of graft material for the maxillary sinus floor augmentation using only CBCT images. Surgeons require auxiliary diagnostic tools to measure the volume associated to CBCT exams in order to perform better.

Los estilos APA, Harvard, Vancouver, ISO, etc.

32

Alkan, Alper, Nükhet Çelebi y Burcu Baş. "Acute Maxillary Sinusitis Associated with Internal Sinus Lifting: Report of a Case". European Journal of Dentistry 02, n.º 01 (enero de 2008): 69–72. http://dx.doi.org/10.1055/s-0039-1697357.

Texto completo

Resumen

ABSTRACTSinus floor augmentation (SFA) is one of the techniques that has been proposed for improving the long-term retention of dental implants. The procedure involves the creation of a submucoperiosteal pocket in the floor of the maxillary sinus for placement of a graft consisting of autogenous, allogenic, or alloplastic material. Complications of the SFA predominantly consist of disturbed wound healing, hematoma, sequestration of bone, and transient maxillary sinusitis. In this report, we presented an acute maxillary sinusitis complication following internal sinus lifting in a patient with chronic maxillary sinusitis. (Eur J Dent 2008;2:69-72)

Los estilos APA, Harvard, Vancouver, ISO, etc.

33

Peysakhov, Dmitry, Elie M. Ferneini y Richard G. Bevilacqua. "Maxillary Sinus Augmentation With Autogenous Tibial Bone Graft as an In-Office Procedure". Journal of Oral Implantology 38, n.º 1 (1 de febrero de 2012): 43–50. http://dx.doi.org/10.1563/aaid-joi-d-10-00140.

Texto completo

Resumen

This retrospective study evaluates the efficacy of maxillary sinus grafting using autologous tibial bone in an outpatient setting. Twenty-seven patients undergoing lateral proximal tibial bone graft with subsequent sinus lifts were involved in this study. All surgeries were performed by the same surgeon in a private practice setting. A total of 28 tibial bone grafts and sinus lifts were performed on 27 patients. All subjects had minimal morbidity without any major complications. At the 1-year follow-up all implants that were placed into the grafted sites maintained stability, and no implants were lost. Two patients complained of hypertrophic scars at the site of bone harvesting (7.4%). One patient complained of leg pain for 10 weeks after the procedure, which resolved completely (2.7%). Overall complication rate was 10.1%. We conclude that the surgical harvesting of proximal tibial bone is associated with a low incidence of overall complications, mild postoperative pain, relative ease of harvest, minimal operative time, immediate ambulation, and rapid recovery, which make it an ideal office procedure when a significant amount of corticocancellous bone is required for maxillary sinus grafting.

Los estilos APA, Harvard, Vancouver, ISO, etc.

34

Andrés-García, Rodrigo, José Vicente Ríos-Santos, Mariano Herrero-Climent, Pedro Bullón, Javier Fernández-Farhall, Alberto Gómez-Menchero, Ana Fernández-Palacín y Blanca Ríos-Carrasco. "Sinus Floor Elevation via an Osteotome Technique without Biomaterials". International Journal of Environmental Research and Public Health 18, n.º 3 (27 de enero de 2021): 1103. http://dx.doi.org/10.3390/ijerph18031103.

Texto completo

Resumen

According to classic Hirschfeld studies, the first teeth to be lost are the first and second maxillary molars. After the teeth are extracted and the alveolar process is developed, the maxillary sinus is reabsorbed and pneumatized with a decrease in bone availability in the posterior sector of the maxilla. This process often creates the need to perform regeneration techniques for the placement of implants in this area due to the low availability of bone. The most frequently used and documented technique for the elevation of the sinus maxillary floor is elevation by the side window, as proposed by Tatum. In 1994, Summers proposed a technique that allowed the elevation of the sinus floor from a crestal access using an instrument called an osteotome, as well as the placement of the implant in the same surgical act. The aimed of the study was to evaluate the survival of 32 implants placed in posterior maxilla with bone availability less than 5 mm performing a sinus lift augmentation technique with osteotome without biomaterials. The results of this study show a survival rate of 100% for 32 implants placed in situations with an initial bone availability of 2 to 5 mm without the use of graft material. The infra-drilling technique used offers an increase in the primary stability of implants that allows adequate osteointegration Implants placed were charged at 12 weeks. In all cases, spontaneous bone formation was observed, even in cases where a positive Valsalva maneuver was observed. This proposed technique reduces treatment time and the need for more invasive maxillary sinus augmentation techniques.

Los estilos APA, Harvard, Vancouver, ISO, etc.

35

Park, Won-Bae, Gazelle Jean Crasto y Philip Kang. "Preliminary Approach for Open Lateral Window Technique for Successful Maxillary Sinus Augmentation in the Unrepairable Wide Perforation Area of Schneiderian Membrane". Applied Sciences 12, n.º 19 (27 de septiembre de 2022): 9725. http://dx.doi.org/10.3390/app12199725.

Texto completo

Resumen

During maxillary sinus augmentation (MSA), bone graft particles displaced through the perforated site can block the ostium and become a risk factor for maxillary sinusitis. The purpose of this case report is to introduce a novel approach for successful lateral MSA performed in the unrepairable perforation area of Schneiderian membrane. In a total of three patients, including two who were unintentionally treated with a split-mouth design, the Schneiderian membrane was ireparably perforated during the sinus floor elevation. After bone grafting was performed on only the sinus floor, the open lateral window technique was performed in which the upper part of the lateral window was opened. After the procedure, unexpectedly, the patient showed transient nasal bleeding, but no unusual clinical events. Most of the bone graft substitutes were not displaced and the exposed portion was covered with a soft tissue. In the sinus graft, clotting of blood, supplied from the perforated Schneiderian membrane and the buccal flap through the open lateral window, appeared to prevent graft displacement. Within the limitations of present case reports, these patients showed that MSA via the open lateral window technique was possible even with a widely perforated Schneiderian membrane that could not be repaired.

Los estilos APA, Harvard, Vancouver, ISO, etc.

36

Chitsazi, Mohamad Taghi, Ali Hosien Dehghani, Amir Reza Babaloo, Sohrab Amini y Hadi Kokabi. "Radiographic comparison of density and height of posterior maxillary bone after open sinus lift surgery with and without PRF". Journal of Advanced Periodontology & Implant Dentistry 10, n.º 2 (19 de enero de 2019): 43–49. http://dx.doi.org/10.15171/japid.2018.008.

Texto completo

Resumen

Background and aims. Expansion of maxillary sinus towards the alveolar crest due to tooth loss or horizontal‒vertical resorption of the alveolar bone decreases the available bone for the placement of dental implants in the posterior maxilla. The method suggested for placing implants with a standard length is the use of sinus lift surgery with autogenous bone graft or bone substitute materials. The aim of the present research, with split-mouth design, was radiographic comparison of the density and height of the posterior of maxillary bone after open sinus lift procedure with and without PRF. Materials and methods. In this split-mouth clinical trial, 14 patients were evaluated, with complete or partial bilateral edentulism of the upper jaw. In each case, for the sinus lift surgery of the test side, PRF was used, while in the sinus lift surgery of the other side of the same patient no graft materials were used. After six months and before the second surgery, CBCT was used to evaluate bone density and height. Results. All the 41 implants were osseointegrated and were clinically stable. The bone height was 1.42 mm higher in the PRF group than the group without PRF, which was statistically significant. The mean density of the bone formed around the dental implants in the PRF group was 52.85 units higher than that of the group without PRF, which was statistically significant. Conclusion. Using PRF in sinus lift surgery might enhance the quantity and quality of bone formation.

Los estilos APA, Harvard, Vancouver, ISO, etc.

37

Nedir, Rabah, Nathalie Nurdin, Paul Khoury, Marc El Hage, Semaan Abi Najm y Mark Bischof. "Paradigm Shift in the Management of the Atrophic Posterior Maxilla". Case Reports in Dentistry 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/486949.

Texto completo

Resumen

When the posterior maxilla is atrophic, the reference standard of care would be to perform sinus augmentation with an autologous bone graft through the lateral approach and delayed implant placement. However, placement of short implants with the osteotome sinus floor elevation technique and without graft can be proposed for an efficient treatment of clinical cases with a maxillary residual bone height of 4 to 8 mm. The use of grafting material is recommended only when the residual bone height is ≤4 mm. Indications of the lateral sinus floor elevation are limited to cases with a residual bone height ≤ 2 mm and fused corticals, uncompleted healing of the edentulous site, and absence of flat cortical bone crest or when the patient wishes to wear a removable prosthesis during the healing period. The presented case report illustrates osteotome sinus floor elevation with and without grafting and simultaneous implant placement in extreme conditions: atrophic maxilla, short implant placement, reduced healing time, and single crown rehabilitation. After 6 years, all placed implants were functional with an endosinus bone gain.

Los estilos APA, Harvard, Vancouver, ISO, etc.

38

Cheon, Kyeong-Jun, Byoung-Eun Yang, Seoung-Won Cho, Sung-Min Chung y Soo-Hwan Byun. "Lateral Window Design for Maxillary Sinus Graft Based on the Implant Position". International Journal of Environmental Research and Public Health 17, n.º 17 (31 de agosto de 2020): 6335. http://dx.doi.org/10.3390/ijerph17176335.

Texto completo

Resumen

The purpose of this study was to devise a classification and lateral window design method based on implants and to evaluate whether these classifications and methods are applicable to clinical practice. When applying the maxillary sinus elevation technique using the lateral window, possible situations were classified into four: (A) two or more sites for implants are required for maxillary sinus augmentation, (B) a single implant is required when there are no adjacent teeth, (C) a single implant is required when one adjacent tooth is present at the mesial or distal area, and (D) a single implant is required when both mesial and distal adjacent teeth are present. In order to verify whether this classification can be used in all situations, 76 patients who underwent maxillary sinus elevation with a lateral window were selected and investigated. Of them, 47 (62%) were included in Group A, 9 (12%) in Group B, 8 (11%) in Group C, and 12 (15%) in Group D. Lateral window designing in the lateral approach of sinus augmentation can be classified into four clinical situations. There were no unclassified cases. This classification and window positioning method can be applied to most cases.

Los estilos APA, Harvard, Vancouver, ISO, etc.

39

Scarano, Antonio, Gianluca Tartaglia, Biagio Rapone, Francesco Inchingolo y Felice Lorusso. "Maxillary Sinus Osteoma as a Support for Dental Implant Associated to Sinus Augmentation Procedure: A Case Report and Literature Review". Applied Sciences 12, n.º 11 (27 de mayo de 2022): 5435. http://dx.doi.org/10.3390/app12115435.

Texto completo

Resumen

Background: Maxillary sinus augmentation is a method extensively used to restore sufficient bone volume in the posterior maxilla to allow for the placement of fixtures. The purpose of the present case report was to describe a rare case of sinus osteoma used for implant support and to review the relevant literature. Materials and Methods: A 58-year-old man with a radiopaque intrasinusal lesion was referred for rehabilitation of the maxilla. The lesion was probably an osteoma and involved the nasal wall of the maxillary sinus. After discussing the options with the patient, he agreed to maintain the lesion and a sinus augmentation with a bone graft. A part of the osteoma was partially removed for histological analysis while avoiding perforation or tearing of the schneiderian membrane. After six months, 6 implants (Bone System Implant, Milano, Italy) were placed in the maxilla, two of which were inserted in the osteoma. Results: The two implants placed in the osteoma were perfectly osseointegrated. The graft material appeared well-integrated with no local signs of inflammation. No postoperative events or symptoms were reported after the surgery stages and at a 6-month follow-up. Regarding the two implants placed in the osteoma: article selection identified 9 case reports, 2 case series, and 1 retrospective study for a total of 58 subjects, 35 males and 25 females. The patients’ ages were heterogeneous and ranged between 12 and 79 years old. Conclusions: In the present case, we decided to leave the osteoma because it was asymptomatic and used as dental implant support. The effectiveness of the present investigation can provide useful guidance for surgeons and dentists in the management of similar clinical situations.

Los estilos APA, Harvard, Vancouver, ISO, etc.

40

Costa, F., M. Robiony, C. Toro, F. Polini, N. Zerman y M. Politi. "Endoscopic surgical treatment of the maxillary sinus disease before sinus graft procedure". International Journal of Oral and Maxillofacial Surgery 34 (enero de 2005): 49. http://dx.doi.org/10.1016/s0901-5027(05)81061-6.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

41

Üngör, Cem. "Radiologic Evaluation of Putty Versus Powder Form of Demineralized Bone Matrix in Sinus Floor Elevation". Journal of Oral Implantology 38, n.º 4 (1 de agosto de 2012): 337–44. http://dx.doi.org/10.1563/aaid-joi-d-10-00017.

Texto completo

Resumen

The aim of this study was to evaluate differences in ossification of the 2 forms of demineralized bone matrix (DBM)—putty and powder—radiographically, using digital densitometry on panoramic radiographs in maxillary sinus floor augmentation procedures. Twelve subjects needing bilateral maxillary sinus floor augmentation for the placement of osseointegrated implants were included in this study. The left and right maxillary sinuses were augmented in the same session in each patient using the 2 preferred forms of DBM—putty and powder—during the same session. One sinus was augmented with DBM putty form and the other sinus was augmented with DBM powder form randomly. Every patient had a total of 4 panoramic radiographs taken, preoperatively and in the first, third, and sixth month postoperatively. The densitometry measurements were taken from each step of the aluminium step-wedge, from both sinuses from different points a total of 3 times, and the average of these measurements was calculated. The amount of mineralization in each graft material in every radiograph was clarified by the appearance of a difference in the equivalent aluminium thickness, and the obtained results were statistically evaluated. The results showed that there were no significant differences between two graft materials statistically. These two graft materials could be good alternatives in sinus lifting procedures because of less morbidity, lower price, and good ossification. The results indicate that 2 different types of DBM achieved good ossification in the sinus lifting procedure, and there is not a considerable distinction in these 2 forms.

Los estilos APA, Harvard, Vancouver, ISO, etc.

42

Sneha Gada, Thyianeswaran Nessappan y Dhanraj Ganapathy. "Radiographic bone formation after indirect sinus lift using transcrestal osteotomy with simultaneous implant placement". International Journal of Research in Pharmaceutical Sciences 11, SPL3 (6 de octubre de 2020): 983–86. http://dx.doi.org/10.26452/ijrps.v11ispl3.3316.

Texto completo

Resumen

Dental implants really have transformed the reconstruction and strategic planning of fixed prosthodontics in the edentulous posterior maxilla. Increased bone volume via elevation of sinus membrane enables dental implants to be positioned in dysplastic maxillary ridges. The purpose of the research was to determine retrospectively the volume of hard tissue height acquired through a transcrestal method to sinus lifting utilizing osteotomes, together with the concurrent positioning of implants. Documents from the previous 2-year span of partially edentulous cases checked at Saveetha Dental Hospital were searched for patients undergoing implantation to substitute teeth missing in a posterior edentulous maxillary area with inadequate vertical osseous height. The inclusion criterion, sinus lift operation, was performed without bone grafts. A maximum of 42 people was selected. Among these patients, 35 were classified as cases recommended for indirect sinus lift while 45 were given implants. The implants being used are 3.5 mm or 4.5 mm diameter and 10.5, 11 or 13 mm length. The average survival rate for implants was 97.78 per cent. The mean bone height estimated from alveolar crest to the base of the implant just at the time of implantation was 6.79 mm ± 1.35 mm. Measured mean bone height at the six-month follow-up period was 11.4 mm ±0.88 mm, which was significant (p < 0.05). Transcrestal osteotomy with implants tenting sinus membrane without extra graft material might show a substantial mean osseous height increase of 4.6 mm.

Los estilos APA, Harvard, Vancouver, ISO, etc.

43

Omori, Yuki, Daniele Botticelli, Mauro Ferri, Rafael Delgado-Ruiz, Vitor Ferreira Balan y Samuel Porfirio Xavier. "Argon Bioactivation of Implants Installed Simultaneously to Maxillary Sinus Lifting without Graft. An Experimental Study in Rabbits". Dentistry Journal 9, n.º 9 (6 de septiembre de 2021): 105. http://dx.doi.org/10.3390/dj9090105.

Texto completo

Resumen

Background: The treatment of the surface of titanium implants with argon plasma improved its hydrophilicity and cell adhesion, resulting in higher bone apposition on implant and graft surfaces. The spontaneous perforation over time of the sinus mucosa after sinus augmentation has been documented in experimental studies at both implants and graft particles. The aim of the present study was to evaluate the influence of plasma argon treatment of the implant surface on bone apposition and on the rate of sinus mucosa perforations. Methods: A sinus lifting procedure was performed bilaterally in sixteen rabbits, and implants, either treated with argon plasma or left without treatment (control), were placed simultaneously without grafts. After 8 weeks, histological analyses were carried out. Results: A collapse of the sinus mucosa was observed at all implants. Twenty-four out of thirty-two implants presented sinus mucosa perforations at the apex. Several perforations were also found at the threads. Thinned mucosa sites (width < 40 µm) were found around almost all implants. About 2.6–2.9 mm of the apical regions of the implant did not present signs of osseointegration and about 1.3 mm were exposed to the sinus cavity. No statistically significant differences were found between plasma and control sites. Conclusions: In conclusion, the sinus mucosa was damaged and perforated by direct contact with treated and non-treated implant surfaces. The treatment of the implant surface with argon plasma did not affect the outcomes.

Los estilos APA, Harvard, Vancouver, ISO, etc.

44

Rivara, F., M. Negri, S. Lumetti, L. Parisi, A. Toffoli, E. Calciolari, E. Manfredi y G. M. Macaluso. "Maxillary Sinus Floor Augmentation Using an Equine-Derived Graft Material: Preliminary Results in 17 Patients". BioMed Research International 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/9164156.

Texto completo

Resumen

Objective. Sinus floor elevation with lateral approach is probably the most frequently performed reconstructive procedure to rehabilitate posterior maxilla when a bone deficiency is present. Different graft materials have been proposed and tested, often with high clinical performances and predictable results. Histological analysis is required when evaluating new materials. We investigated human biopsies retrieved after sinus floor elevation procedure by histomorphometric evaluation to test the performance of an equine-derived bone grafting material. Study Design. Seventeen consecutive patients were enrolled and sinus lift surgeries were performed using an equine bone graft. Six months after surgery, at implant placement, bone samples were collected. Histomorphometry analysis was carried out on decalcified samples. Results. All surgeries were uneventful and no additional grafting was required prior to implant insertion. Forty percent of new bone formation was detected, which represented the most abundant tissue retrieved, followed by the residual graft material (33%) and fibrous tissue (27%). A significant reduction in particles size demonstrates a remodeling activity of the graft material. Conclusion. Within the limitations of this study, this equine-derived bone graft proved to be an effective material to induce new bone formation in the sinus floor elevation procedure.

Los estilos APA, Harvard, Vancouver, ISO, etc.

45

Asmael, Huda M., Ali R. Raouf y Ali K. Saaed. "Development of Sinusitis After Sinus Floor Elevation Surgery: A Systematic Review". Journal of Baghdad College of Dentistry 30, n.º 4 (15 de diciembre de 2018): 20–23. http://dx.doi.org/10.26477/jbcd.v30i4.2550.

Texto completo

Resumen

Background: Maxillary sinusitis can arise after sinus floor elevation surgery and should be treated immediately to prevent further complications which included dental implants failure, graft lost, and oro-antral fistula. This is the first systematic review to assess the incidence, causes, and treatment of sinusitis after sinus lift surgery. Materials and methods: An electronic search included MEDLINE (PUBMED) data base site was carried out for articles involving development of sinusitis after sinus lift surgery from September 1997 up to April, 8, 2017. The search was done and reviewed by two independent authors. Results: The total results of electronic search were (182) abstracts and articles, the extracted articles which involved development of sinusitis after sinus lift surgery were (25) studies. Of the 25 articles only (8) articles fit the inclusion criteria. Maxillary sinusitis was calculated for all selected studies and it was ranged from 2.12% to 12.7% with average of 5.4 %. Conclusion: Maxillary sinusitis could be developed after sinus lift surgery with average of 5.4 % and the patients with previous maxillary sinus disease showed to be at increased risk of sinusitis after sinus lift surgery.

Los estilos APA, Harvard, Vancouver, ISO, etc.

46

Hassani, Ali, Arash Khojasteh y Marzieh Alikhasi. "Repair of the Perforated Sinus Membrane With Buccal Fat Pad During Sinus Augmentation". Journal of Oral Implantology 34, n.º 6 (1 de diciembre de 2008): 330–33. http://dx.doi.org/10.1563/1548-1336-34.6.330.

Texto completo

Resumen

Abstract Several reports demonstrate successful use of the buccal fat pad (BFP) as pedicled graft in reconstructing small to medium sized maxillary defects. BFP harvesting has so far been shown to be an easy, well-tolerated, and uncomplicated technique for oral reconstruction. This case report proposes the use of BFP for repairing of the perforated sinus membrane during sinus augmentation.

Los estilos APA, Harvard, Vancouver, ISO, etc.

47

Lee, Eun-Young, Eun-Suk Kim y Kyoung-Won Kim. "Vertical Augmentation of Maxillary Posterior Alveolar Ridge Using Allogenic Block Bone Graft and Simultaneous Maxillary Sinus Graft". Maxillofacial Plastic and Reconstructive Surgery 36, n.º 5 (30 de septiembre de 2014): 224–29. http://dx.doi.org/10.14402/jkamprs.2014.36.5.224.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

48

Bahaa-Eldin, Khalid, Basma Mostafa, Sherine Nasry, Ahmed Reda y Mona Shoeib. "Maxillary Sinus Augmentation Using a Titanium Mesh: A Randomized Clinical Trial". Open Access Macedonian Journal of Medical Sciences 5, n.º 3 (11 de junio de 2017): 359–69. http://dx.doi.org/10.3889/oamjms.2017.083.

Texto completo

Resumen

BACKGROUND: Various attempts have been implemented using different materials and techniques to augment the maxillary sinus floor for prospect dental implant positioning.AIM: This contemplate was conducted to assess the osteogenic capability of the maxillary sinus in a two-step sinus membrane elevation using titanium mesh to keep the formed space to place dental implants in atrophic ridges.MATERIALS AND METHODS: Titanium micromesh was customized and positioned into the sinus on one side to preserve the elevated membrane in position. On the other side xenograft was applied. Instant and 6-months postoperative cone beam computed tomography (CBCT) was done to assess the gained bone height and density. Bone core biopsies were obtained during implant placement for histological and histomorphometric evaluation.RESULTS: The average bone height values increased in both groups. Meanwhile the average bone density value was higher at the graft group than the titanium mesh group. Histological and histomorphometric evaluation presented the average bone volume of the newly formed bone in the graft group which is superior to that of the titanium mesh group.CONCLUSION: The use of the titanium micromesh as a space-maintaining device after Schneiderian membrane elevation is a trustworthy technique to elevate the floor of the sinus without grafting.

Los estilos APA, Harvard, Vancouver, ISO, etc.

49

Barros, Mariana Silva, Regiane Cristina do Amaral, Irineu Gregnanin Pedron, Elio Hitoshi Shinohara y Cristiano Gaujac. "New Perspectives about Maxillary Sinus Lifting: a Literature Review". ARCHIVES OF HEALTH INVESTIGATION 12, n.º 1 (28 de enero de 2023): 26–32. http://dx.doi.org/10.21270/archi.v12i1.5930.

Texto completo

Resumen

Maxillary sinus lifting is a procedure for bone height gain in atrophic jaws. New safe and less complex manners have been evalueted, which use modifications of conventional techniques, through technologies such as devices and equipment that make them less traumatic. This study aims to conduct a literature review of articles found in the PubMed database between the years 2015 and 2020 that addresses advances in Maxillary sinus lifting techniques. We noticed that there is a development in the techniques that promotes the reduction of operative time, perforations and consequently a better postoperative for the patient, reducing the unpleasant perception of the surgery. The use of surgical ultrasound reduces the trauma to the soft tissues and the number of membrane perforations. A great step in the development of the sinus membrane lifting technique was the perception that bone formation is possible with the detachment of the membrane, not requiring the placement of a graft. There is no technique that replaces Maxillary Sinus Lifting yet. Only to improve it.

Los estilos APA, Harvard, Vancouver, ISO, etc.

50

Garbacea, Antoanela, Jaime L. Lozada, Christopher A. Church, Aladdin J. Al-Ardah, Kristin A. Seiberling, W. Patrick Naylor y Jung-Wei Chen. "The Incidence of Maxillary Sinus Membrane Perforation During Endoscopically Assessed Crestal Sinus Floor Elevation: A Pilot Study". Journal of Oral Implantology 38, n.º 4 (1 de agosto de 2012): 345–59. http://dx.doi.org/10.1563/aaid-joi-d-12-00083.

Texto completo

Resumen

Transcrestal sinus membrane elevation is a surgical procedure performed to increase the bone volume in the maxillary sinus cavity. Because of visual limitations, the potential for maxillary sinus membrane perforations may be greater than with the lateral approach technique. The aim of this study was to macroscopically investigate ex vivo the occurrence of sinus membrane perforation during surgery using 3 transcrestal sinus floor elevation methods. Twenty fresh human cadaver heads, with 40 intact sinuses, were used for simultaneous sinus membrane elevation, placement of graft material, and dental implants. Real-time sinus endoscopy, periapical digital radiographs, and cone-beam computerized tomography (CBCT) images were subsequently used to evaluate the outcome of each surgical procedure. Perforation rates for each of the 3 techniques were then compared using a significance level of P < .05. No statistically significant differences in the perforation rate (P = .79) were found among the 3 surgical techniques. Although the sinus endoscope noted a higher frequency of perforations at the time of implant placement as compared with instrumentation or graft insertion, the difference was not statistically significant (P = .04). The CBCT readings were judged to be more accurate for identifying evidence of sinus perforations than the periapical radiographs when compared with the direct visualization with the endoscope. This pilot study demonstrated that a sinus membrane perforation can occur at any time during the sinus lift procedure, independent of the surgical method used.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Artículos de revistas sobre el tema "Maxillary sinus graft"

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros