Literatura académica sobre el tema "Maxillary sinus graft"
Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros
Consulte las listas temáticas de artículos, libros, tesis, actas de conferencias y otras fuentes académicas sobre el tema "Maxillary sinus graft".
Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.
También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.
Artículos de revistas sobre el tema "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 completoResumen
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.
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 completoResumen
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.
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 completoResumen
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.
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 completoResumen
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.
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 completoResumen
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.
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 completoResumen
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.
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 completoResumen
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.
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 completoResumen
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.
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 completoResumen
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.
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 completoResumen
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.
Tesis sobre el tema "Maxillary sinus graft"
1
Filho, Geraldo Prestes de Camargo. "Estudo comparativo de duas técnicas de enxerto autógeno utilizando piezocirurgia para levantamento de seio maxilar". Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/23/23149/tde-30082010-150345/.
Texto completoResumen
A técnica de levantamento de seio maxilar apresenta como uma possível complicação a perfuração da membrana sinusal. A utilização de dispositivos ultrassônicos apresenta-se como uma interessante ferramenta, particularmente segura e eficiente para realização das ostectomias de parede sinusal e divulsão de membrana sinusal. O presente trabalho teve por objetivo comparar duas técnicas que utilizam a cirurgia ultrassônica para realização de enxerto autógeno para levantamento de seio maxilar. Dez coelhos foram utilizados no estudo, sendo que um deles não foi submetido a procedimento cirúrgico. Os nove coelhos operados tiveram os seios maxilares preenchidos com enxertos autógenos coletados de díploe externa de calota craniana, nas formas particulado do lado direito e raspado do lado esquerdo, ambos com aparelho ultrassônico. Os dados de densidade óssea nos seios maxilares esquerdo e direito, obtidos por meio de tomografia computadorizada nos sentidos transversal e longitudinal, registrados 90 dias após a realização dos enxertos foram comparados estatisticamente. Cortes histológicos das áreas enxertadas foram realizados com finalidade descritiva. Não houve diferenças estatisticamente significantes entre as técnicas de enxerto que utilizaram osso raspado e particulado coletado por meio de dispositivo ultrassônico da calota craniana de coelhos. O aspecto histológico observado após 90 dias foi semelhante nos dois grupos, mostrando tecido ósseo maduro em meio a tecido conjuntivo frouxo. Os procedimentos transoperatórios nos levaram a concluir que o ultrassom piezoelétrico mostrou-se um instrumento seguro na abordagem cirúrgica do seio maxilar de coelhos, permitindo a manutenção da integridade da membrana sinusal durante as manobras cirúrgicas.Maxillary sinus lifting is a technique which presents as a possible complication the sinus membrane perforation. The use of ultrasonic devices is presented as an interesting tool, particularly safe and efficient to perform ostectomies of sinus wall and dissection of sinus membrane. This study aimed to compare two techniques that used ultrasound surgery to perform autogenous graft for maxillary sinus lifting. Ten rabbits were used in the study, one of which 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 compared statistically. Histological sections of the grafted areas were performed with descriptive purposes. There were no statistically significant differences between the two techniques that used shaved and particulate bone collected by means of ultrasonic device of the skull of rabbits. Histological aspects after 90 days were similar in both groups, showing mature bone through a fibrous connective tissue. Operatory assessment procedures leads us to conclude that the piezoelectric ultrasound showed as a safe tool in the surgical approach of the maxillary sinus of rabbits, allowing the maintenance of sinus membrane integrity during surgical procedures.
2
Jungner, Måns. "Healing of endosseous implants with different surface characteristics in grafted and non-grafted bone : clinical and experimental studies". Doctoral thesis, Umeå universitet, Institutionen för odontologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-85884.
Texto completoResumen
Aims: This study uses radiological and clinical evaluations of the healing of endosseous titanium implants presented with different surface characteristics in the clinical situation (paper I-III) and experimentally to describe the early bone healing in maxillary sinus membrane elevation with and without the use of grafting material (paper IV). Material and methods: In paper I, 136 patients were treated with 394 dental implants – 199 were oxidized titanium implants (Nobel Biocare TiUnite) and 195 were turned titanium surface implants (Nobel Biocare Mark III). Implant survival rates were retrospectively investigated after a minimum of five months after functional loading of the implants. At the five-year follow-up (paper II), eight patients were deceased and 128 were invited. Twenty-five patients refrained from participating in the study. The remaining 103 patients (287 implants – 133 with a turned surface and 154 with an oxidized surface) were examined after at least five years of functional loading. Clinical examinations of bleeding on probing (BoP) and pocket depth (PD) were performed. Intraoral radiographs were used to assess marginal bone levels (MBLs). In paper III, 28 patients were subjected to autologous bone graft and delayed implant placement, with a total of 92 dental implants. Thirteen patients received 47 implants with a turned surface and 15 patients received 45 implants with an oxidized surface. After a minimum of five years of functional loading, all patients were clinically examined regarding PD and BoP. The MBL was measured in intraoral radiographs. Cone beam computed tomography (CBCT) was used to evaluate the apical bone level (ABL) of the implants and intra-sinus conditions. The experimental study (paper IV) used nine adult male tufted capuchin primates (Cebus apella). Eight animals were subjected to bilateral maxillary sinus membrane elevation using a lateral replaceable bone window technique. One oxidized dental implant was placed in the residual bone of the sinus floor, protruding into the maxillary sinus cavity on both sides. In four animals, one sinus was left without any additional treatment, while the contralateral sinus was filled with autologous bone grafts from the tibia. In two animals, the implants were inserted under the elevated sinus membrane on both sides. In two animals, the sinus membrane was totally removed bilaterally before placement of implants. The animals were euthanized after 10 (n=4) or 45 (n=4) days. One non-operated animal representing pristine tissue conditions served as the control. The maxillary sinuses with implants were retrieved and further processed to prepare light microscopic ground sections or decalcified sections for immunohistochemical analyses. Results: In paper I seven implants were lost in five patients – six in the maxilla and one in the mandible. All failed implants were Mark III turned implants. The overall implant survival rate was 98.2% with a survival rate of 96.4% for implants with turned surface after a minimum of five months after functional loading. In paper II, one additional oxidized implant failed, giving an overall cumulative survival rate of 94.7 and 99.4%, respectively, after at least five years of functional loading. There was no difference for BoP, PD, or MBL between turned and oxidized implants. A total of two implants, three oxidized and one turned, showed a PD > 3 mm, MBL > 4 mm, and BoP. However, none of these were associated with suppurative infection on examination. In paper III no difference was found between the two implants surfaces used in terms of PD, BoP, MBL, or ABL. Pathological reactions to the sinus membrane were seen in four of the patients (14%). Radiographic signs of sinus pathology were not correlated to either survival rate of the implants or any of the investigated parameters. In the experimental paper IV, bone formation started from the bottom of the sinus floor, sprouting into the granulation tissue along the implant surface under the elevated membrane irrespective of time and surgical technique. Bone formation was not seen in direct conjunction with the sinus membrane. A distinct expression of osteopontin was observed in the serous glands of deeper portion of the lamina propria in direct connection with the elevated sinus membrane and close to the implant within all groups. Conclusion: After more than five years of function in non-grafted patients, oxidized implants had a survival rate higher than turned implants, although this was not statistically significant. No difference was found in MBL, PD, or BoP. Grafting of the maxillary sinus floor with intra- orally harvested bone and delayed placement of either turned or oxidized implants resulted in equally high long-term survival rates, MBL, ABL, and BoP. Pathological findings in the maxillary sinus cavity, in terms of sinus membrane health, are few and not correlated to any of the other investigated parameters. In the experimental study bone formation after sinus membrane elevation with or without additional bone grafts started at the sinus floor and sprouted into the elevated space along the implant surface. Removal of the membrane resulted in less bone formation. The sinus membrane did not seem to present osteoinductive potential in sinus membrane elevation procedures.
3
Rocha, Caroline Andrade. "Avaliação comparativa da neoformação óssea após enxertia de HA/TCPp, Bio-Oss e osso autógeno associados ou não ao PRP em cirurgias de levantamento de seio maxilar de coelhos". Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/25/25149/tde-10032016-113037/.
Texto completoResumen
O objetivo da presente pesquisa foi investigar o ganho e a qualidade óssea promovidos com a utilização da cerâmica bifásica HA/TCPp porosa comparativamente ao enxerto ósseo autógeno e ao Bio-Oss® associados ou não ao plasma rico em plaquetas (PRP), em cirurgias de levantamento de seio maxilar em coelhos. Em 54 coelhos foram realizados levantamento bilateral dos seios, sendo um dos seios preenchido com enxerto/biomaterial e sangue (SG) e o contralateral com o enxerto/biomaterial e PRP, e os grupos de tratamento designados de HA/TCPp/SG, HA/TCPp/PRP, AUT/SG, AUT/PRP, Bio-Oss/SG e Bio-Oss/PRP. Após os períodos de 30, 60 e 180 dias (n=18/período), as peças histológicas foram coletadas e fixadas em formol a 10% tamponado. Em seguida, imagens microtomográficas foram obtidas e as peças processadas histologicamente. O volume e altura do seio maxilar elevado foram determinados nas imagens microtomográficas e o percentual e volume do biomaterial e tecido ósseo avaliados nos cortes histológicos pela técnica morfométrica de volumetria de pontos. Os dados foram comparados pela ANOVA a três critérios e as médias contrastadas pelo teste de Tukey, com nível de significância de 5%. O volume e altura do seio maxilar elevado se mantiveram estáveis nos grupos Bio-Oss e HA/TCP, com valores médios de, respectivamente, 154,9mm3 e 5,6mm entre 30 e 180 dias, enquanto que, no grupo AUT essas mesmas dimensões reduziram, respectivamente, 33,3% e 21,7%. O enxerto autógeno sofreu rápida reabsorção e promoveu concomitantemente intensa neoformação/remodelação óssea até os 60 dias. Entre 60 e 180 dias o volume ósseo ganho não se manteve, reduzindo 52,5%. A associação do enxerto AUT com PRP acelerou o processo de neoformação/remodelação óssea e a reabsorção osteoclástica das partículas enxertadas. Já o volume do Bio-Oss® e HA/TCP, praticamente não se modificou em todo período e a formação óssea ocorreu nos espaços entre as partículas, ocupando um volume em média de 42,85mm3 aos 60 dias, que se manteve até os 180 dias. A adição do PRP aos biomateriais Bio-Oss® e HA/TCPp não promoveu alterações na quantidade de tecido ósseo neoformado, porém acelerou o seu processo de maturação, em relação aos grupos associados com SG. Os três materiais aqui usados no levantamento de seio maxilar, permitiram uma expressiva formação óssea, porém o volume ganho se manteve estável nos grupos HA/TCP e Bio-Oss, mas não no grupo AUT, onde esse volume reduziu drasticamente devido aceleração na remodelação óssea, com predomínio da reabsorção osteoclástica aliada à pressão sinusal. Conclui-se que o ganho ósseo no levantamento de seio maxilar com o HA/TCPp ou Bio-Oss mantémse estável porque oferece melhor resistência contra a pressão sinusal e a repneumatização em relação ao obtido com enxerto autógeno. A associação do PRP ao enxerto autógeno acelera o processo de formação/remodelação óssea, porém a sua associação ao HA/TCPp ou Bio-Oss não influencia no ganho final de volume ósseo, mas aumenta a velocidade de sua maturação.This study investigated the bone gain and quality achieved by utilization of biphasic porous ceramic HA/TCPp compared to autogenous bone graft and Bio-Oss® associated or not with platelet-rich plasma (PRP), in maxillary sinus lift surgeries in rabbits. Bilateral sinus lift was performed in 54 rabbits, being one side filled with graft/biomaterial and blood (SG) and the contralateral side was filled with graft/biomaterial and PRP, and the treatment groups were designed as HA/TCPp/SG, HA/TCPp/PRP, AUT/SG, AUT/PRP, Bio-Oss/SG and Bio-Oss/PRP. After periods of 30, 60 and 180 days (n=18/period), the histological specimens were collected and fixed in buffered 10% formalin. Following, microtomographic images were obtained and the specimens were histologically processed. The volume and height of the lifted maxillary sinus were determined on the microtomographic images, and the percentage and volume of graft/biomaterial and bone tissue were morphometrically evaluated on the histological sections by point counting volumetry. Data were compared by threeway ANOVA and the means were compared by the Tukey test, at significance level of 5%. The volume and height of the lifted maxillary sinus were stable in the groups Bio- Oss and HA/TCP, with mean values of 154.9mm3 and 5.6mm between 30 and 180 days respectively, while in the group AUT the same dimensions were reduced in 33.3% and 21.7%, respectively. The autogenous graft exhibited fast resorption with concomitant intense new bone formation and remodeling up to 60 days. Between 60 and 180 days, the increase in bone volume was not maintained, reducing in 52.5%. The association of AUT graft with PRP accelerated the new bone formation/remodeling process and the osteoclastic resorption of grafted particles. Conversely, the volume of Bio-Oss® and HA/TCP was nearly unchanged throughout the period and bone formation occurred in the spaces between particles, filling a mean volume of 42.85mm3 at 60 days, which was maintained up to 180 days. The addition of PRP to the biomaterials Bio-Oss® and HA/TCPp did not promote changes in the quantity of newly formed bone, yet accelerated its maturation in relation to groups associated with SG. The three materials presently used for maxillary sinus lift allowed significant bone formation, yet the volume gain was stable in the groups HA/TCP and Bio-Oss but not in the group AUT, in which this volume was dramatically reduced due to the accelerated bone remodeling, with predominance of osteoclastic resorption associated with sinus pressure. It was concluded that, the bone gain in maxillary sinus lift with HA/TCPp or Bio-Oss remains stable because it offers better strength against the sinus pressure and pneumatization compared to that obtained with autograft. The association of PRP with the autogenous graft accelerates the process of bone formation/remodeling, yet its association with HA/TCPp or Bio-Oss does not influence the final bone volume gain, but increases the rate of bone maturation.
4
Alayan, Jamil. "Maxillary Sinus Augmentation - a histological, clinical, radiographic and patient centred assessment". Thesis, Griffith University, 2018. http://hdl.handle.net/10072/381656.
Texto completoResumen
Maxillary sinus pneumatization is a frequently encountered problem in the dental implant rehabilitation of the posterior maxilla. Maxillary sinus augmentation (MSA) using a lateral wall approach is a well-established and commonly utilized surgical technique for overcoming this bone deficiency and allowing implant placement. MSA is still in the refinement process with a large degree of variation in all aspects of the technique including; the surgical protocol, the anatomical site, the choice of material, the site of autogenous bone harvesting, the timing of implant surgery and the use of barrier membranes. Generally, however, prospective controlled clinical trials critically assessing these domains remain rare, especially studies applying well defined success criteria for implant supported restorations placed in sites of MSA. The maxillary sinus grafting procedure is invasive and surgically demanding, but appears to have limited interference with maxillary sinus physiology when performed well. In addition, reported surgical complications are generally well tolerated and followed by normal recovery in the vast majority of cases. Most of this data however is derived from medium to low level evidence (clinical case series, retrospective analyses). Patients undergoing this procedure also expect to be counselled about their expectations regarding pain and the impact of this procedure on their daily life in the post-operative period. Such information is not available. There is also limited long term outcome data on implants placed in MSA. Historically, autogenous bone grafts have been considered the gold standard due to their inherent osteoinductivity. Their significant limitations in MSA however has driven intense research into various bone substitutes. Anorganic bovine bone mineral (ABBM) is a very well documented xenograft in MSA when used alone or as a composite graft with autogenous bone (AB) (ABBM + AB). More recently, collagen stabilized ABBM using 10% porcine type-1 collagen matrix has also become available for use (ABBM-C) (Bio-Oss Collagen®). This formulation may have clinical utility in its use as a sole biomaterial in MSA especially in situations of Schneiderian membrane perforation. There are however, no published studies on this grafting material in MSA. Whilst material selection influences the histological appearance and characteristics of the regenerated bone, other factors can also play a role including defect anatomy and implant surface. Chemical modification of implant surfaces has resulted in a surface with increased surface energy and hydrophilicity (SLActive®). These surfaces have demonstrated enhanced bone apposition during the early stages of osseointegration and improved bone regeneration in bone defects when compared to traditional microrough implant surfaces (SLA®). To date however, very few studies have compared these two implant surfaces in MSA and none at the early stages of osseointegration. As such, this thesis aims to assess the histological, clinical (surgical), volumetric and patient centered outcomes of ABBM-C in MSA when compared to ABBM + AB. In addition, the influence of implant surface microtopography on early osseointegration in MSA regenerated sites was assessed. This is continued further to assess the outcomes of implant supported restorations placed into MSA sites using these two biomaterials and well defined success criteria including survival, biological and technical outcomes. In the first part of the thesis, qualitative and quantitative histological assessment was used to compare ABBM-C with ABBM + AB in both pre-clinical and clinical MSA models. In the first experimental chapter (Chapter 2), a randomized controlled trial utilized histomorphometric assessment in a pre-clinical model (ovine) to show that both healing time and proximity to the resident sinus walls had a positive impact on histomorphometric outcomes. Both biomaterials exhibited very similar histomorphometric parameters in the proximal zones but the presence of AB seemed advantageous in regions distant from resident sinus wall. In chapter 3, the histomorphometric assessment was performed in a prospective controlled clinical trial. Both biomaterials exhibited very similar histomorphometric parameters but the ABBM+AB group exhibited a more mature graft with a greater proportion of lamellar bone. Based on these histological assessments, ABBM-C appeared to be a suitable bone substitute for the purposes of MSA. In chapter 4, the influence of implant surface microtopography on early osseointegration in MSA was assessed in a pre-clinical (ovine) model by placing implants with a hydrophilic and hydrophobic surface in sites previously receiving the MSA procedure. Both time and the use of a hydrophilic implant surface had a positive impact on %BIC around implants placed into augmented maxillary sinuses. Hydrophilic implant surfaces also had a positive impact on the surrounding tissue composition. The second part of this thesis explores the clinical, radiographic and patient centred outcomes of MSA using these two biomaterials, as well as the survival and success of the implant supported restorations placed into these sites. In chapter 5, a prospective clinical trial compared both groups of biomaterials in MSA with material allocation based on specific clinical presentations (sinus membrane perforation / local AB bone availability). It indicated that MSA using the lateral wall technique is safe and associated with mild to moderate pain and restrictions to daily activities for 48-72hrs. Patient reporting of morbidity was greater with AB harvesting. Volumetric analysis using 3-D imaging showed that C-ABBM provides comparable bone volume to AB + ABBM that is sufficient for placement of implants of adequate size with no need for further vertical augmentation. Engaging the surrounding sinus walls had a significant positive impact on graft volume. In chapter 6, the same patient population was followed to assess implant supported restorations after 12 months of function using well defined success criteria. Both groups revealed high implant survival rates. Marginal bone levels & peri-implant parameters were consistent with health in both groups. The majority of the restorations were screw retained single crowns or small fixed partial dentures. The incidence of mucositis was dependent on the definition threshold. Absence of periimplantitis and low rates of technical complications were reported in both groups. Within the limitation of this trial, it can be concluded that collagen stabilized ABBM can be successfully used alone for maxillary sinus augmentation and subsequent implant rehabilitation. Its clinical utility is most relevant in cases of sinus membrane perforation and insufficient autogenous bone in the local area.Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Dentistry&Oral Hlth
Griffith Health
Full Text
5
Johansson, Björn. "Bone grafts and dental implants in the reconstruction of the severely atrophied, edentulous maxilla /". Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2001. http://publications.uu.se/theses/91-554-4962-X/.
Texto completo
6
Bomfim, Bianca Bravim [UNESP]. "Regeneração óssea guiada com o uso de membrana de copolímero PLA/PGA em levantamento da membrana do seio maxilar: estudo experimental com análises histomorfométrica e imunoistoquímica". Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/133943.
Texto completoResumen
Submitted by BIANCA BRAVIM BOMFIM null (biabravim@ig.com.br) on 2016-01-28T16:32:13Z
No. of bitstreams: 2
TESE BIANCA .pdf: 75671195 bytes, checksum: 7dea3472294f07732ed6f7e28c426429 (MD5)
TESE BIANCA .pdf: 75671195 bytes, checksum: 7dea3472294f07732ed6f7e28c426429 (MD5)Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2016-01-29T15:08:29Z (GMT) No. of bitstreams: 1 bomfim_bb_dr_araca.pdf: 75671195 bytes, checksum: 7dea3472294f07732ed6f7e28c426429 (MD5)
Made available in DSpace on 2016-01-29T15:08:29Z (GMT). No. of bitstreams: 1 bomfim_bb_dr_araca.pdf: 75671195 bytes, checksum: 7dea3472294f07732ed6f7e28c426429 (MD5) Previous issue date: 2015-12-17
A utilização de biomateriais em implantodontia, principalmente em casos em que o leito receptor do implante apresenta quantidade e qualidade ósseas inadequadas, se torna importante. Diversos estudos mostram a possibilidade do usar copolímeros de PLA/PGA, no entanto, estes mesmos estudos mostram que a proporção de PLA e PGA irá influenciar a taxa de degradação do copolímero. Portanto, objetivo desse estudo foi avaliar o comportamento biológico do copolímero de PLA/PGA como substitutos ósseos para técnica de levantamento da membrana do seio maxilar por meio de análises histomorfométrica e imunoistoquímica. Vinte coelhos machos, branco, da raça Nova Zelândia, cada um pesando cerca de 3,0 kg, foram utilizados e foram divididos em dois grupos de acordo com o material de preenchimento do seio: grupo coágulo (GC) e grupo copolímero (GP). Foi realizado descolamento bilateral da membrana sinusal com períodos de eutanásia aso 3, 10, 20 e 40 dias para as análises histomorfométricas e imunoistoquímica para a expressão de osteocalcina (OC). De uma forma geral, para todas as variáveis avaliadas, a diferença estatisticamente significante mostrou-se entre 3 e 10 dias pós-operatórios (p<0,05), como pode ser demostrado também na expressão de OC. Foi possível concluir que o copolímero PLA/PGA mostrou-se capaz de conduzir o processo de formação óssea, mantendo o volume inicial, impedindo o colabamento da membrana com a parede do seio, como pode ser observado em GC.
The use of biomaterials in dental implantology, especially in cases where the receptor region of implant has inadequate bone quantity and quality, becomes important. Several studies have shown the possibility to use copolymers of PLA / PGA, however these same studies show that the proportion of PLA and PGA copolymer will influence the degradation rate. So the aim of this study was to evaluate the biological behavior of PLA / PGA copolymer as bone substitutes for lifting technique of the maxillary sinus membrane through histomorphometric and immunohistochemical analyzes. Twenty male rabbits, white, New Zealand race, each weighing about 3.0 kg, were used and were divided into two groups in accordance with within the filling material: Clot group (CG) and a copolymer group (PG) . Were realized the bilateral sinus lift of rabbits and inserted the respective materials with euthanasia periods as 3, 10, 20 and 40 days for histomorphometric and immunohistochemical analysis for the expression of osteocalcin (OC). In general, for all variables, a statistically significant difference was shown between 3 and 10 days postoperatively (p <0.05), as can be demonstrated also in OC expression. It was concluded that the PLA / PGA copolymer was shown to be able to conduct the process of bone formation, maintaining the initial volume, preventing the collapse of the membrane with the sinus wall, as can be observed in GC.
7
Melo, Willian Morais de. "Osso autógeno associado a osso bovino inorgânico (GenOx Inorg®) para aumento do soalho do seio maxilar e instalação de implantes: análise comparativa do potencial osteogênico de culturas de células derivadas do sítio doador e do sítio de implantação". Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/58/58136/tde-10082012-163454/.
Texto completoResumen
Objetivos: O objetivo desse estudo foi avaliar comparativamente o potencial osteogênico in vitro de células obtidas do ramo mandibular (RM, área doadora) e do seio maxilar enxertado com uma mistura de RM e osso bovino inorgânico (OBI), previamente à instalação de implantes de titânio (SM, sítio do seio maxilar enxertado). Material e Métodos: As células foram obtidas de três pacientes submetidos a procedimentos de aumento do soalho do seio maxilar com a proporção de 1:1 de RM e OBI (GenOx Inorg®). No momento da realização dos enxertos no seio maxilar e após 08 meses, antes da inserção dos implantes de titânio, fragmentos ósseos foram colhidos do RM e do SM, respectivamente, e submetidos à digestão enzimática com tripsina e colagenase para obtenção de células primárias. As células foram subcultivadas e crescidas sob condições osteogênicas por até 21 dias, tendo sido avaliados os seguintes parâmetros: proliferação/viabilidade celular, expressão gênica de marcadores osteoblásticos, atividade de fosfatase alcalina (ALP) e conteúdo de cálcio, por extração do vermelho de Alizarina. Culturas primárias derivadas do RM foram expostas ao GenOx Inorg® por 7 dias, quando se avaliou a atividade de ALP. Os resultados foram comparados por ANOVA two-way, seguido do teste de Tukey, ou pelo teste de Mann-Whitney. Resultados: Culturas do SM exibiram uma redução significante do potencial osteogênico se comparado ao de culturas do RM, com um aumento progressivo na proliferação celular associado a uma redução da expressão dos marcadores osteoblásticos, da atividade de ALP e do conteúdo de cálcio. A exposição do GenOx Inorg® às células primárias derivadas do RM inibiram a atividade de ALP. Conclusão: Esses resultados sugerem que o uso do GenOx Inorg® em associação a fragmentos do RM para aumento do soalho do seio maxilar inibe a diferenciação de células osteoblásticas no sítio de inserção de implantes de titânio após 8 meses de enxertia.Objectives: This study aimed to comparatively evaluate the in vitro osteogenic potential of cells obtained from the mandibular ramus (MR, autogenous bone donor site) and from the maxillary sinus bone grafted with a mixture of anorganic bovine bone (ABB) and MR prior to titanium implant placement (MS, grafted implant site). Material and methods: Cells were obtained from three patients subjected to maxillary sinus floor augmentation with a 1:1 mixture of ABB (GenOx Inorg®) and MR. At the time of the sinus lift procedure and after 8 months, prior to implant placement, bone fragments were taken from MR and MS, respectively, and subjected to trypsin-collagenase digestion for primary cell culturing. Subcultured cells were grown under osteogenic condition for up 21 days and assayed for proliferation/viability, osteoblast marker mRNA levels, alkaline phosphatase (ALP) activity and calcium content/Alizarin red staining. ALP activity was also determined in primary explant cultures exposed to GenOx Inorg® (1:1 with MR) for 7 days. Data were compared using the two-way ANOVA followed by the Tukey test; otherwise, the Mann-Whitney test was used. Results: MS cultures exhibited a significantly lower osteogenic potential compared with MR cultures, with a progressive increase in cell proliferation together with a downregulation of osteoblast markers, reduced ALP activity and calcium content. Exposure of MR-derived primary cultures to GenOx Inorg® inhibited ALP activity. Conclusion: These results suggest that the use of GenOx Inorg® in combination with MR fragments for maxillary sinus floor augmentation inhibits the osteoblast cell differentiation at the implant site in the longterm.
8
Schlund, Matthias. "Sinus graft infection management: systematic review". Master's thesis, 2021. http://hdl.handle.net/10284/10729.
Texto completoResumen
The aim of this study was to systematically review sinus graft infection management in order to define which protocols should be implemented.
The terms searched in each database were “sinus graft infection management”, “maxillary sinus lift infection”, “maxillary sinus graft infection”, “maxillary sinus elevation infection”, “maxillary sinus augmentation infection”. The outcome evaluated both maxillary sinus health and implantological result.
The initial search yielded 1190 results. 18 articles were included counting 3319 patients and 217 sinus graft infections. In every study, all patients obtained finally a disease-free sinus but the outcome regarding the graft and the dental implant was more varied.
It is not possible to define the best treatment protocol for sinus graft infections based on the published data since the level of evidence is poor. Management is very heterogeneous. This review highlighted the necessity of surgical treatment associated with antibiotic therapy.O objetivo deste estudo foi revisar sistematicamente o manejo da infecção do enxerto sinusal, a fim de definir quais protocolos deveriam ser implementados. Os termos pesquisados em cada banco de dados foram “gerenciamento de infecção de enxerto de seio maxilar”, “infecção de elevação do seio maxilar”, “infecção de enxerto de seio maxilar”, “infecção de elevação do seio maxilar”, “infecção de aumento do seio maxilar”. O resultado avaliou a saúde do seio maxilar e o resultado implantológico. A pesquisa inicial gerou 1190 resultados. 18 artigos foram incluídos contando 3319 pacientes e 217 infecções de enxerto de seio. Em todos os estudos, todos os pacientes obtiveram finalmente um seio nasal livre de doença, mas o resultado em relação ao enxerto e ao implante dentário foi mais variado. Não é possível definir o melhor protocolo de tratamento para infecções de enxerto sinusal com base nos dados publicados, uma vez que o nível de evidência é baixo. A gestão é muito heterogênea. Esta revisão destacou a necessidade de tratamento cirúrgico associado à antibioticoterapia.
9
Cheng, Hsiang-Yuan y 鄭翔元. "Retrospective Analysis of Graft Height Changes after Dental Implantation Combining Maxillary Sinus Augmentation". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/am7k5p.
Texto completoResumen
碩士國立臺灣大學
臨床牙醫學研究所
99
Background： Dental implant therapy has become a standard rehabilitation method for patients suffered from missing teeth in the posterior maxilla. Because of disuse atrophy and continuous pneumatization of the maxillary sinus, insufficient bone height for dental implantation is common in the posterior maxilla which necessitates sinus augmentation to increase the bone volume. In this surgical technique the Schneiderian membrane is elevated and then bone graft materials are placed into the newly created subantral space to increase bone volume for implant therapy. Previous studies showed that the survival rates for dental implants in combination with sinus augmentation are high. However, the long-term stability of sinus graft and factors influencing graft stability have seldom been examined. Purpose: By examination of the changes in sinus graft volume over a long period and analysis of the relations between graft alteration and various clinical parameters, the long-term efficacy of the sinus augmentation technique is determined. Materials and Methods： Patients who received dental implantation in combination with sinus augmentation at the Department of Oral Maxillofacial Surgery, National Taiwan University Hospital during 2002 to 2008 were included in the study. A total of 47 patients were followed for at least two years. Macroporous biphasic calcium phosphate （MBCP） or deproteinized freeze dried bone allograft （DFDBA） were used as graft materials in 60 maxillary sinus augmentation with total 102 implants. Clinical factors that may influence implant success and graft stability were recorded. Changes in graft height were calculated in three locations, 2 mm mesial to implant, directly above implant, and 2 mm distal to implant. The GSH ratio （follow-up grafted sius height versus original sius height） were calculated as follow-up grafted sinus height versus original sinus height. The relationship between grafted sinus floor and implant was classified into three groups: Group I, in which the grafted sinus floor was above the implant apex; Group II, in which the implant apex was level with the grafted sinus floor; and Group III, in which the grafted sinus floor was below the implant apex. The relations between various clinical parameters and implant success or graft stability were analyzed statistically by Chi Square Test, Student t Test, Logistic Regression Model. Results： There were 2 implants defined as failure, and the overall implant success rate was 98.03%. No clinical factor was significantly related to implant success, all P>0.05. In average, the long term graft change at the site 2 mm mesial to implant was 1.55±2.29 mm （mean±SD）（loss 20.02%）; directly above implant was 1.08±1.50 mm （loss 11.09%）; 2 mm distal to implant was 1.42±2.27 mm （loss 14.67%）. When DFDBA grafts were considered separately, the long term change at the site 2 mm mesial to implant was 3.17±2.50 mm （loss 40.25%）; directly above implant was 1.52±1.33 mm （loss 14.78%）; 2 mm distal to implant was 3.21±2.50 mm （loss 35.02%）. In MBCP group, the long term change at the site 2 mm mesial to implant was 0.84±1.80 mm （loss 10.95%）; directly above implant was 0.90±1.54 mm （loss 9.54%）: 2 mm distal to implant was 0.65±1.67 mm （loss 5.95%）. For all sinus grafts, the mean follow-up GSH ratio 2 mm mesial to implant was 1.87±4.58; 2 mm distal to implant was 3.51±3.77. Loss of graft height at mesial site was smaller than that at the distal, and the difference was significant statistically （P<0.05）. In DFDBA group, the follow-up GSH ratio at the site 2 mm mesial to implant was 0.66±0.82; 2 mm distal to implant was 3.23±3.14. And the difference was significant statistically （P<0.05）. In MBCP group, follow-up GSH ratio at the site 2 mm mesial to implant was 2.43±5.6; 2 mm distal to implant was 3.63±4.03, but the difference was not significant statiscally （P>0.05）. The relations between grafted sinus floor and implant apex were as follows: 73 implants （72.2%） were in group I, 11 implants （10.8%） group II, 17 implants （16.8%） group III. In DFDBA group, 15 implants （50.00%） were in group I, 2 implants （6.67%） group II, 13 implants （43.33%） group III. In MBCP group, 58 implants （81.69%） were in group I, 9 implants （12.68%） group II, 4 implants （5.63%） group III. Concerning the relations between graft stability and various clinical parameters were, we found that: graft materials, implant related location, intraoperative sinus membrane perforation and method of access window protection, were significantly associated with graft stability. The grafts were significantly more stable when MBCP was used comparing to DFDBA （P<0.05）. Graft changes were significantly more obvious mesial to the implants comparing to the distal aspects （P<0.05）. Graft loss was noted if membrane perforation happened during augmentation surgery （P<0.05）. Graft changes were more marked when access windows were protected by collagen membrane comparing to window bone plate replacement （P<0.05）. Conclusions: Sinus augmentation is now a routine bone graft technique for implant therapy. In the retrospective study, we noted that sinus grafts decfeased in size in the long term, although this phenomenon was not related to implant success. We also found that graft material, implant related location, intraoperative sinus membrane perforation were factors associated with long term graft stability.
10
esquillo, mariusse chars y 馬俐歐. "IMPLANT REHABILITATION OF SEVERELY ATROPHIED MAXILLARY ALVEOLAR RIDGE AFTER LATERAL TRAP DOOR WINDOW SINUS LIFT TECHNIQUE WITHOUT BONE GRAFT". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/28324109143988538148.
Texto completoResumen
碩士國立陽明大學
臨床牙醫學研究所
98
Bone quantity and quality play an important role in the rehabilitation of edentulous ridges. Anatomic considerations such as in early loss of maxillary posterior teeth leads to rapid resorption of bone in the alveolar process below the maxillary sinus. In order to compensate for the loss bone, augmentation of the maxillary sinus floor is required using sinus lift procedure. The classic procedure for the augmentation entails the preparation of a trap door to elevate the Schneiderian membrane in the lateral sinus wall. While autogenous bone has long been considered the gold standard grafting material because of its osteoinductive and osteoconductive properties, alternative materials have, in general, no osteoinductive potential but are considered to provide a scaffold for optimal bone growth. More so, autogenous bone grafting presents a major disadvantage in requiring a second surgical site with associated morbidity. Recent cases of immediate implant placement in maxillary alveolar ridge after performing sinus lift without bone graft challenges the utility of conventional approach involving placement of filling materials into the sinus space created during the sinus lift procedure. It is conceivable that that formation of new bone in the maxillary sinus does not require the presence of various grafts as scaffolds, rather, the maintenance of space for blood clot formation followed by the resorption and deposition of bone cells derived from the sinus periosteum or peripheral cancellous marrow in the maxilla is proposed to explain the appearance of new bone in the maxillary sinus. This study aims to review the survival of implant cases which underwent the implant placement after sinus lift without bone graft performed at Taipei Veterans General Hospital – Department of Oral & Maxillofacial Surgery.
Libros sobre el tema "Maxillary sinus graft"
1
T, Jensen Ole, ed. The sinus bone graft. 2a ed. Chicago: Quintessence Pub. Co., 2006.
Buscar texto completo
2
T, Jensen Ole, ed. The sinus bone graft. Chicago: Quintessence Pub. Co., 1998.
Buscar texto completo
3
Jensen, Ole T. The Sinus Bone Graft. Quintessence Publishing (IL), 1999.
Buscar texto completoCapítulos de libros sobre el tema "Maxillary sinus graft"
1
Kim, David Minjoon y Daniel Kuan-te Ho. "Choices of Bone Graft Materials". En Clinical Maxillary Sinus Elevation Surgery, 157–64. Hoboken, NJ, USA: John Wiley & Sons, Inc, 2014. http://dx.doi.org/10.1002/9781118871331.ch13.
Texto completo
2
Rinaldi, Marco, Scott D. Ganz y Angelo Mottola. "Maxillary Edentulism, Bone Grafts, Sinus Graft, Computer Implant Surgery". En Computer-Guided Applications for Dental Implants, Bone Grafting, and Reconstructive Surgery (Adapted Translation), 370–80. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-323-27803-4.15027-5.
Texto completo
3
Keun, Jeong y Yong Seok. "Outfracture Osteotomy Sinus Graft: A Modified Technique Convenient for Maxillary Sinus Lifting". En A Textbook of Advanced Oral and Maxillofacial Surgery. InTech, 2013. http://dx.doi.org/10.5772/53301.
Texto completo
4
Sohn, Dong-Seok. "New Bone Formation in the Maxillary Sinus With/Without Bone Graft". En Implant Dentistry - The Most Promising Discipline of Dentistry. InTech, 2011. http://dx.doi.org/10.5772/16512.
Texto completo
5
Rinaldi, Marco, Scott D. Ganz y Angelo Mottola. "Maxillary Edentulism, Sinus Graft With Heterologous Bone Block Preformed on a Stereolithographic Model". En Computer-Guided Applications for Dental Implants, Bone Grafting, and Reconstructive Surgery (Adapted Translation), 412–22. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-323-27803-4.15032-9.
Texto completo
6
Rinaldi, Marco, Scott D. Ganz y Angelo Mottola. "Maxillary Edentulism, Bone Grafts, Sinus Grafts, Tilted Implants". En Computer-Guided Applications for Dental Implants, Bone Grafting, and Reconstructive Surgery (Adapted Translation), 341–50. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-323-27803-4.15025-1.
Texto completo
7
Rinaldi, Marco, Scott D. Ganz y Angelo Mottola. "Maxillary Edentulism, Bone Grafts, Sinus Grafts, Computer Implant Surgery". En Computer-Guided Applications for Dental Implants, Bone Grafting, and Reconstructive Surgery (Adapted Translation), 279–91. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-323-27803-4.15020-2.
Texto completo
8
Rinaldi, Marco, Scott D. Ganz y Angelo Mottola. "Maxillary Edentulism, Bone Grafts, Sinus Grafts, Computer Implant Surgery". En Computer-Guided Applications for Dental Implants, Bone Grafting, and Reconstructive Surgery (Adapted Translation), 327–40. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-323-27803-4.15024-x.
Texto completo
9
Ballini, Andrea, Michele Scivetti, Stefania Cantore, Biagio Rapone, Gianfranco Favia y Felice Roberto. "Tissuue Engineering in Maxillar Sinus Lifting: A Comparation of Differents Grafts and Confocal Laser Scanning Microscopic Evaluation". En Bone Regeneration. InTech, 2012. http://dx.doi.org/10.5772/32942.
Texto completo