Статті в журналах: "Cephalometry; Maxilla – Surgery; Osteotomy"

1

Baumann, Arnulf, and Klaus Sinko. "Importance of Soft Tissue for Skeletal Stability in Maxillary Advancement in Patients with Cleft Lip and Palate." Cleft Palate-Craniofacial Journal 40, no. 1 (January 2003): 65–70. http://dx.doi.org/10.1597/1545-1569_2003_040_0065_iostfs_2.0.co_2.

Повний текст джерела

Анотація:

Objective Assessment of stability of the advanced maxilla after two-jaw surgery and Le Fort I osteotomy in patients with cleft palate based on soft tissue planning. Subjects Between 1995 and 1998, 15 patients with cleft lip and palate deformities underwent advancement of a retruded maxilla, without insertion of additional bone grafts. Eleven patients had bimaxillary osteotomies and four patients only a Le Fort I osteotomy. Relapse of the maxilla in horizontal and vertical dimensions was evaluated by cephalometric analysis after a clinical follow-up of at least 2 years. Results In the bimaxillary osteotomies, horizontal advancement was an average 4 mm at point A. After 2 years, there was an additional advancement of point A of an average of 0.7 mm. In the mandible, a relapse of 0.8 mm was seen after an average setback of 3.9 mm. In the four patients with Le Fort I osteotomy, point A was advanced by 3.8 mm and the relapse after 2 years was 0.9 mm. Vertical elongation at point A resulted in relapse in both groups. Impaction of the maxilla led to further impaction as well. Conclusion Cephalometric soft tissue analysis demonstrates the need for a two-jaw surgery, not only in severe maxillary hypoplasia. Alteration of soft tissue to functional harmony and three-dimensional correction of the maxillomandibular complex are easier to perform in a two-jaw procedure. It results in a more stable horizontal skeletal position of the maxilla.

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Sari, Emel, Cihan Ucar, Oytun Türk, Huseyin Kurtulmus, H. Ayberk Altug, and Suheyl Pocan. "Treatment of a Patient with Cleft Lip and Palate Using an Internal Distraction Device." Cleft Palate-Craniofacial Journal 45, no. 5 (September 2008): 552–60. http://dx.doi.org/10.1597/07-075.1.

Повний текст джерела

Анотація:

A 24-year-old man with a bilateral cleft lip and palate was treated by a multidisciplinary team composed of an orthodontist, plastic surgeon, and prosthodontist with assistance from an engineer. Before treatment, clinical photographs, dental casts, lateral and posteroanterior cephalograms, periapical and panoramic radiographs, and three-dimensional computed tomography (3D CT) images were obtained. He presented with a narrow and retrognathic maxilla with a 23-mm anterior open bite. Following maxillary expansion with rapid palatal expansion, a Le Fort I maxillary osteotomy was performed, and an internal distractor was placed. After a 5-day latency period, internal maxillary distraction was performed at a rate of 1 mm/day achieved by two activations per day. Cephalometric analysis showed a 7-mm maxillary advancement. Mandibular bilateral sagittal split osteotomy was also performed to close the open bite following maxillary distraction and a 3-month stabilization period. Finally, the treatment was completed with prosthetic rehabilitation. The changes in speech production were evaluated using an automatic speech recognition system.

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Gaggl, Alexander, Günter Schultes, and Hans Kärcher. "Aesthetic and Functional Outcome of Surgical and Orthodontic Correction of Bilateral Clefts of Lip, Palate, and Alveolus." Cleft Palate-Craniofacial Journal 36, no. 5 (September 1999): 407–12. http://dx.doi.org/10.1597/1545-1569_1999_036_0407_aafoos_2.3.co_2.

Повний текст джерела

Анотація:

Objective: To assess the aesthetic and functional long-term results of surgical and orthodontic treatment of patients with bilateral cleft lip, palate, and alveolus. Design: Long-term follow-up study. Setting: Teaching hospital in Austria. Patients: Twenty adult patients who had been operated on as children for bilateral cleft lip, palate, and alveolus. Interventions: Lateral cephalometric and model analysis. The sum of all mesiodistal tooth diameters in the maxilla and mandible were compared with standard Bolton tracings. Main outcome measures: Aesthetic and functional results. Results (model analysis): The upper arch was too wide in 12 patients and the mandibular arch was too wide in 4 patients. In 11 patients, the lateral teeth were crowded, and all had a persistent transverse space deficit and a reduction in sagittal measurements. Fifteen patients had alveolar midline displacement of the maxilla as well as of the mandible. Results (lateral cephalometric measurements): The lateral cephalograms showed a mean sella-nasion-A point angle of 77° and a maxillary baseline-nasion-sella line angle of 9°, indicating a tendency toward maxillary retrognathia. An anterior facial height index of 42% (compared with the standard 58%) indicated a slight reduction in midface height with consequent increase in the height of the lower face. Conclusion: There is specific growth impairment of the midface in adults who were treated as children for bilateral clefts of lip, palate, and alveolus. An optimal result can be achieved only by additional orthognathic surgery (Le Fort II osteotomy).

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Minami, Katsuhiro, Yoshihide Mori, Kwon Tae-Geon, Hidetaka Shimizu, Miyuki Ohtani, and Yoshiaki Yura. "Maxillary Distraction Osteogenesis in Cleft Lip and Palate Patients with Skeletal Anchorage." Cleft Palate-Craniofacial Journal 44, no. 2 (March 2007): 137–41. http://dx.doi.org/10.1597/04-204.1.

Повний текст джерела

Анотація:

Objective: Maxillary distraction osteogenesis with the rigid external distraction (RED) system has been used to treat cleft lip and palate (CLP) patients with severe maxillary hypoplasia. We introduce maxillary distraction osteogenesis for CLP patients with skeletal anchorage adapted on a stereolithographic model. Patients: Six maxillary deficiency CLP patients treated according to our CLP treatment protocol had undergone maxillary distraction osteogenesis. Method: In all patients, computed tomography (CT) images were recorded preoperatively, and the data were transferred to a workstation. Three-dimensional skeletal structures were reconstructed with CT data sets, and a stereolithographic model was produced. On the stereolithographic model, miniplates were adapted to the surface of maxilla beside aperture piriforms. The operation performed involved a high Le Fort I osteotomy with pterygomaxillary disjunction. Miniplates were fixed to the maxillary segment with three or four screws and used for anchorage of the RED system. Retraction of the maxillary segment was initiated after 1 week. Results: The accuracy of the stereolithographic models was enough to adapt the miniplates so that there was no need to readjust the plates during surgery. Postoperative cephalometric analysis showed that the direction of the retraction was almost parallel to the palatal plane, and dental compensation did not occur. Conclusions: We performed maxillary distraction osteogenesis with skeletal anchorage adapted on the stereolithographic models. Excellent esthetic outcome and skeletal advancement were achieved without dentoalveolar compensations.

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Cheng, Jung-Hsuan, Chun-Feng Chen, Ping-Ho Chen, Kun-Jung Hsu, Han-Sheng Chen, and Chun-Ming Chen. "Changes in Pharyngeal Airway Space and Craniocervical Angle after Anterior Bimaxillary Subapical Osteotomy." BioMed Research International 2021 (August 10, 2021): 1–7. http://dx.doi.org/10.1155/2021/9978588.

Повний текст джерела

Анотація:

Purpose. This study explored the effects of genioplasty (Gep) and anterior subapical osteotomy of the maxilla and mandible (ASOMx+ASOMd) on the pharyngeal airway dimensions of patients with bimaxillary protrusion (BiP). Method. Thirty-two patients were divided into 2 groups. Group 1 received ASOMx+ASOMd, and group 2 received ASOMx+ASOMd+Gep. The cephalograms of the patients were collected before surgery and 2 months after surgery. Changes in the landmarks, related cephalometric angles (gonial, SN-GoGn, Y -axis, and SN-C2C4 angles), and 2 pharyngeal airway dimensions (uvulo-pharyngeal airway [UOP] and tongue–pharyngeal airway [TOP]) were analyzed. Results. Before surgery, the parameters (incisor superius, incisor inferius, menton, most superior and anterior point of the hyoid bone, tip of the uvula, inferoanterior point on the second cervical vertebra, and inferoanterior point on the fourth cervical vertebra) and measured angles (SNA, SNB, ANB, gonial, SN-GoGn, Y -axis, and C4C2-SN) of both groups showed no significant differences. Following ASOMx, the patients in groups 1 and 2 exhibited a setback by 7.0 and 6.6 mm, respectively. After ASOMd, groups 1 and 2 exhibited 4.9 and 5.3 mm setbacks, respectively. No significant difference in the amount of setback was observed between groups 1 and 2. The postoperative horizontal and vertical positions of Me in group 2 were significantly forward by 6.1 mm and upward by 1.5 mm, respectively. Regarding pharyngeal airway dimensions, TOP was decreased in group 1 (1.7 mm) and group 2 (1.3 mm). In the postoperative Pearson correlation coefficient test, the horizontal and vertical positions of Me showed no significant correlation with TOP in both groups. Therefore, Gep did not prevent the reduction of TOP in group 2. Conclusion. After bimaxillary anterior subapical osteotomy, the TOP of patients with BiP was decreased, and this situation was unavoidable, regardless of whether Gep was performed.

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Kabbur, Karthik Jayadevappa, M. Hemanth, GS Patil, V. Sathyadeep, Naveen Shamnur, KB Harieesha, and GR Praveen. "An Esthetic Treatment Outcome of Orthognathic Surgery and Dentofacial Orthopedics in Class II Treatment: A Cephalometric Study." Journal of Contemporary Dental Practice 13, no. 5 (2012): 602–6. http://dx.doi.org/10.5005/jp-journals-10024-1194.

Повний текст джерела

Анотація:

ABSTRACT Aim The main objective of any orthodontic treatment is to achieve well-established stable occlusal relationship with a definite positive change in facial profile. The purpose of this study was to determine, if such a goal is achievable for patients who could be classified as borderline surgical cases without the invasive use of the actual surgery or, with the use of the recently developed and rapidly spreading fixed functional appliance system (Forsus) and a comparison of the esthetic treatment outcome with the two systems. Materials and methods Twelve postadolescent borderline skeletal class II patients with a deficient mandible. All the patients used in the study were treated by a preadjusted edgewise appliance for presurgical decompensation with or without extractions and for postsurgical finishing and detailing. Out of the 12 patients six were treated with bilateral saggital split osteotomy (BSSO) and six were treated with fixed functional appliance (Forsus). Results The results suggested that although surgical patients had a better mandibular advancement, profile reduction, and marked improvements in soft tissue structures, the patients who had undergone fixed functional therapy also had comparable improvement in the above aspects. In the maxilla there was no change in cases treated with surgery but in case of Forsus some retraction of anterior dental segment was evident. Conclusion In surgical group, class II malocclusion correction was more skeletal than dental, whereas in functional group class II malocclusion correction was more dental than skeletal. Clinical significance Looking at the common surgical risks, cost-effective and postsurgical problems and patients with borderline class II malocclusion, fixed functional therapy is a valuable adjunct in the management of class II malocclusion. How to cite this article Kabbur KJ, Hemanth M, Patil GS, Sathyadeep V, Shamnur N, Harieesha KB, Praveen GR. An Esthetic Treatment Outcome of Orthognathic Surgery and Dentofacial Orthopedics in Class II Treatment: A Cephalometric Study. J Contemp Dent Pract 2012;13(5):602-606.

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Kalyani P, Madhulaxmi M, and Santhosh Kumar M P. "One-piece Lefort osteotomy versus segmental procedure for maxillary skeletal deformities - A retrospective study." International Journal of Research in Pharmaceutical Sciences 11, SPL3 (September 12, 2020): 368–73. http://dx.doi.org/10.26452/ijrps.v11ispl3.2946.

Повний текст джерела

Анотація:

Maxillary skeletal deformities can occur in all three planes and are corrected by orthognathic surgery. Osteotomies form the basis for orthognathic surgeries. One of the most commonly used osteotomy techniques for maxillary skeletal deformities is the LeFort osteotomy. The aim of this study was to compare the application of One Piece LeFort Osteotomy and Segmental Osteotomy procedures in the treatment of maxillary skeletal deformities. The institutional study involved analysis of case sheets of patients who underwent surgical correction of maxillary skeletal deformities in the stipulated time frame and assessment based on the parameters: Demographic data, type of cephalometric analysis, cephalometric values, type of skeletal deformity, and technique of Osteotomy. Statistical analysis was calculated by chi-square test. A p-value<0.05 was considered significant. Maxillary skeletal deformities were more prevalent among females (60%) than males (40%). Anterior maxillary segmental osteotomies were more commonly performed (60%), followed by LeFort 1 osteotomy (26.7%). The prevalence of posterior osteotomy technique was 13.3%. A statistically significant association was revealed between the type of skeletal malocclusion and technique of Osteotomy used, with a p-value of 0.008<0.05. The type of malocclusion dictates the technique of Osteotomy is used. In a skeletal Class II, segmental malocclusion procedure was more preferred for maxillary deformities.

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Gomes, Kelston Ulbricht, Wilson Denis Benato Martins, and Marina de Oliveira Ribas. "Horizontal and vertical maxillary osteotomy stability, in cleft lip and palate patients, using allogeneic bone graft." Dental Press Journal of Orthodontics 18, no. 5 (October 2013): 84–90. http://dx.doi.org/10.1590/s2176-94512013000500015.

Повний текст джерела

Анотація:

OBJECTIVE: This study was carried out to evaluate maxillary stability after orthodontic-surgical treatment of patients with cleft lip and palate. Cephalometric analysis was applied to two different groups, with and without allogeneic bone graft. METHODS: The sample comprised 48 patients with cleft lip and palate. The test group comprised 25 patients who, after correction of maxillary position, received allogeneic bone graft at the gap created by Le Fort I osteotomy. The control group comprised 23 patients and its surgical procedures were similar to those applied to the test group, except for the use of bone graft. Manual cephalometric analysis and comparison between lateral teleradiographs, obtained at the preoperative phase, immediate postoperative phase and after a minimum period of six months, were carried out. RESULTS: An higher horizontal relapse was observed in the control group (p<0.05). There were no statistically significant differences in vertical relapses between test and control groups (p>0.05). CONCLUSION: The use of allogeneic bone graft in cleft lip and palate patients submitted to Le Fort I osteotomy contributed to increase postoperative stability when compared to surgeries without bone graft.

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Jacobson, Alex. "Accuracy of Cephalometry in Measurements of Postoperative Migration of the Maxilla After LeFort I Osteotomy." American Journal of Orthodontics and Dentofacial Orthopedics 111, no. 2 (February 1997): 245. http://dx.doi.org/10.1016/s0889-5406(97)80066-2.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Merville, Louis C., and Guy Princ. "Postero-lateral expansion osteotomy of maxilla." Journal of Cranio-Maxillofacial Surgery 15 (January 1987): 20–23. http://dx.doi.org/10.1016/s1010-5182(87)80008-2.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

11

Komal, Rastogi, Pai K. Deepak, Choonthar M. Muralee, and M. S. Ravi. "Nasal Profile Changes Following Anterior Maxillary Segmental Osteotomy: A Lateral Cephalometric Study." Journal of Maxillofacial and Oral Surgery 15, no. 2 (May 8, 2015): 191–98. http://dx.doi.org/10.1007/s12663-015-0797-y.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

12

Faria, Paulo Esteves Pinto, Letícia Liana Chihara, Victor Sakima, and Eduardo Sant’Ana. "Treatment of Nonunion in the Mandible After Orthognathic Surgery to Correct Transverse Asymmetry of the Face." Craniomaxillofacial Trauma & Reconstruction Open 5 (January 1, 2020): 247275122090485. http://dx.doi.org/10.1177/2472751220904855.

Повний текст джерела

Анотація:

Purpose: The present study aims to report the reoperation of an unsuccessful orthognathic surgery with the use of heterogeneous graft and hybrid rigid internal fixation. Case Report: We report the case of V.M.S., a 19-year-old female patient with the main complaint of “crooked chin.” The patient revealed that she previously underwent two operations that were conducted by a different team. The first surgery was carried out to correct the dentofacial deformity, while the second one was intended to eliminate a postoperative infection. After a detailed anamnesis, facial analysis, cephalometric analysis with tomography, and examination of gypsum models, we observed mandibular left-handedness and vertical maxillary excess on the right side. In addition to these previously reported problems, there was a nonunion in the region of the sagittal fracture of the left jaw. Results: The patient underwent surgery to correct dentofacial deformity using the Le Fort I maxillary osteotomy technique and bilateral sagittal osteotomy with hybrid rigid internal fixation plus mentoplasty. Conclusion: Six months following the procedure and orthodontic completion, the patient has a satisfactory occlusion and stability of nonunion without the laterognathism in the skeletal and soft tissue profile.

Стилі APA, Harvard, Vancouver, ISO та ін.

13

Fahradyan, Artur, Erik M. Wolfswinkel, Noreen Clarke, Stephen Park, Michaela Tsuha, Mark M. Urata, Jeffrey A. Hammoudeh, and Dennis-Duke R. Yamashita. "Impact of the Distance of Maxillary Advancement on Horizontal Relapse After Orthognathic Surgery." Cleft Palate-Craniofacial Journal 55, no. 4 (January 4, 2018): 546–53. http://dx.doi.org/10.1177/1055665617739731.

Повний текст джерела

Анотація:

Background: The maxillary horizontal relapse following Le Fort I advancement has been estimated to be 10% to 50%. This retrospective review examines the direct association between the amounts of maxillary advancement and relapse. We hypothesize that the greater the advancement, the greater the relapse amount. Method: Patients with class III skeletal malocclusion underwent maxillary advancement with either a Le Fort I or a Le Fort I with simultaneous mandibular setback (bimaxillary surgery) from 2008 to 2015. Patients were assessed for a history of cleft lip or cleft palate. Patients with known syndromes were excluded. Cephalometric analysis was performed to compare surgical and postsurgical changes. Results: Of 136 patients, 47.1% were males and 61.8% had a history of cleft. The mean surgery age was 18.9 (13.8-23) years and 53.7% underwent a bimaxillary procedure. A representative subgroup of 35 patients had preoperative, immediate postoperative, and an average of 1-year postoperative lateral cephalograms taken. The mean maxillary advancement was 6.3 mm and the horizontal relapse was 1.8 mm, indicating a 28.6% relapse. A history of cleft and amount of maxillary advancement were directly correlated, whereas bone grafting of the maxillary osteotomy sites was inversely correlated with the amount of relapse ( P < .05). Conclusions: Our data suggest positive correlation between amount of maxillary advancement and horizontal relapse as well as a positive correlation between history of cleft and horizontal relapse. Bone grafting of the maxillary osteotomy sites has a protective effect on the relapse.

Стилі APA, Harvard, Vancouver, ISO та ін.

14

Daryanani, Jayshree D., N. Vijay, K. Sadashiva Shetty, and Riddhi Chawla. "Changes in Pharyngeal Airway After Mandibular Setback Surgery: A Retrospective Cephalometric Study." Journal of Indian Orthodontic Society 53, no. 4 (October 2019): 256–63. http://dx.doi.org/10.1177/0301574219868560.

Повний текст джерела

Анотація:

Aim: To cephalometrically evaluate the alterations taking place in the pharyngeal airway space, hyoid bone, soft palate, and head posture after mandibular setback surgery (bilateral sagittal split osteotomy) for correction of mandibular prognathism, as well as to evaluate the immediate postsurgical and more than 6 months postsurgical adaptations of these structures. Setting and Design: A retrospective cephalometric study. Materials and Method: The study group consisted of 40 nongrowing patients (20 females and 20 males) with mandibular prognathism and ANB less than or equal to –2 degree for which mandibular setback surgery by bilateral sagittal split ramus osteotomy was performed along with fixed appliance therapy. There presurgical (T1), immediate postsurgical (T2), and more than 6 months postsurgical (T3) lateral cephalograms were analyzed. Statistical Analysis Used: Intragroup comparison was done by paired t-test. Results: Skeletal measurements after orthognathic surgery remained stable in the long term. It was evident that mandibular setback surgery narrowed the pharyngeal airway; however, these changes were not significant except at the base of the tongue. During the follow-up airway measurements at the base of the tongue, the intersection of tongue at the inferior border of mandible and the vallecula increased but they did not reach the presurgical values. Soft palate length increased significantly after surgery. Angulation of soft palate to nasal line also increased significantly following surgery but decreased during follow-up. Extension of the head occurred after surgery which was maintained even at long term. Conclusion: Careful analysis of airway should be performed, particularly in connection with large anteroposterior discrepancies and in those who have risk factors for development of obstructive sleep apnea. Such cases should be corrected by combined maxillary and mandibular osteotomies.

Стилі APA, Harvard, Vancouver, ISO та ін.

15

Freihofer, Hans Peter M. "Stability after osteotomy of the edentulous maxilla." Journal of Cranio-Maxillofacial Surgery 17, no. 7 (October 1989): 306–8. http://dx.doi.org/10.1016/s1010-5182(89)80058-7.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

16

Robiony, Massimo, Fabio Costa, and Massimo Politi. "Alveolar sandwich osteotomy of the anterior maxilla." Journal of Oral and Maxillofacial Surgery 64, no. 9 (September 2006): 1453–54. http://dx.doi.org/10.1016/j.joms.2006.02.006.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Ubilla Mazzini DDS, Esp, William, Manuel Sánchez Laguna DDS, Esp, Fátima Mazzini Torres DDS, MSc, and Tanya Moreira Campuzano DDS, Esp. "Treatment with Ortognactic Surgery in Patient Class III Skeletal with Lateral Left Mandibular Deviation. Case Report." Odovtos - International Journal of Dental Sciences 19, no. 2 (May 5, 2017): 15. http://dx.doi.org/10.15517/ijds.v19i2.28298.

Повний текст джерела

Анотація:

Class III malocclusion is one of the most complex to treat for healthcare because it presents alterations in skeletal and dental component of patients. Case Report: male patient, 17 years old, had a skeletal Class III malocclusion with mandibular prognathism, facial asymmetry, plus a slightly concave profile, crossbite and posterior left. By orthognathic surgery, using the technique of sagittal ramus osteotomy and segmentation maxillary, Le Fort I, malocclusion, accompanied by the Alexander technique Orthodontics is corrected. Conclusion: the correct application of knowledge in the field of Orthodontics and Maxillofacial Surgery allows patients to become skeletal class II to cephalometric analysis, changes to your profile slightly convex and canine class I is reached on both sides.

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Capelozza, Leopoldino, Sheyla Miki Taniguchi, and Omar Gabriel Da Silva. "Craniofacial Morphology of Adult Unoperated Complete Unilateral Cleft Lip and Palate Patients." Cleft Palate-Craniofacial Journal 30, no. 4 (July 1993): 376–81. http://dx.doi.org/10.1597/1545-1569_1993_030_0376_cmoauc_2.3.co_2.

Повний текст джерела

Анотація:

The craniofacial morphology of 26 white unoperated complete unilateral cleft lip and palate patients (13 males, 13 females) was analyzed with cephalometry and compared with a control (normal) group. The results show that in the cleft group, the maxilla is smaller and more protruded, the lower anterior facial height is much larger, and the mandible shows well-defined differences (body, ramus, gonial angle, and mandibular plane angle).

Стилі APA, Harvard, Vancouver, ISO та ін.

19

Komal, Rastogi, Pai K. Deepak, Choonthar M. Muralee, and M. S. Ravi. "Erratum to: Nasal Profile Changes Following Anterior Maxillary Segmental Osteotomy: A Lateral Cephalometric Study." Journal of Maxillofacial and Oral Surgery 15, no. 2 (November 4, 2015): 199–206. http://dx.doi.org/10.1007/s12663-015-0831-0.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Mommaerts, Maurice Yves. "Le Fort I–Type Osteotomy Retractor." Craniomaxillofacial Trauma & Reconstruction 10, no. 4 (December 2017): 323–24. http://dx.doi.org/10.1055/s-0036-1592097.

Повний текст джерела

Анотація:

A new instrument for retracting the maxilla after mobilization is described. It does neither compress nor inadvertently pierce the lower lip and it does neither obliterate the view nor hinder access to bone removing instruments.

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Liao, Yu-Fang, and Michael Mars. "Long-Term Effects of Clefts on Craniofacial Morphology in Patients with Unilateral Cleft Lip and Palate." Cleft Palate-Craniofacial Journal 42, no. 6 (November 2005): 601–9. http://dx.doi.org/10.1597/04-163r.1.

Повний текст джерела

Анотація:

Objective To identify the long-term effects of clefts (intrinsic and functional) on craniofacial growth and to evaluate the possible association between the sizes of the cleft maxillary segment (intrinsic) and alveolar cleft (functional) and the craniofacial morphology in patients with unilateral cleft lip and palate (UCLP). Design Retrospective case-control study. Setting Sri Lankan Cleft Lip and Palate Project. Subjects Thirty unoperated adult patients with UCLP and 52 normal controls. Main Outcome Measures Maxillary dental cast was used to measure the sizes of the cleft maxillary segment and alveolar cleft. Cephalometry was used to determine craniofacial morphology. Results Patients with UCLP had shorter height of the basal maxilla, shorter posterior length of the basal maxilla, and less protruded basal maxilla at the zygomatic level than did control subjects. In patients with UCLP, the posterior height of the basal maxilla was related to the size of the cleft maxillary segment, and there was a tendency toward significant association between the anterior height of the basal maxilla and the size of the alveolar cleft. Conclusion The adverse effects of clefts on the growth of the maxilla in patients with UCLP are restricted to the basal maxilla in size. This growth inhibition is major in height and minor in length. The reduced posterior height of the basal maxilla in unoperated patients with UCLP might be primarily attributed to intrinsic effects, whereas the reduced anterior height of the basal maxilla might be attributed to functional effects.

Стилі APA, Harvard, Vancouver, ISO та ін.

22

Hirano, Akiyoshi, and Hiroyuki Suzuki. "Factors Related to Relapse after Le Fort I Maxillary Advancement Osteotomy in Patients with Cleft Lip and Palate." Cleft Palate-Craniofacial Journal 38, no. 1 (January 2001): 1–10. http://dx.doi.org/10.1597/1545-1569_2001_038_0001_frtral_2.0.co_2.

Повний текст джерела

Анотація:

Objective To identify factors associated with relapse after maxillary advancement in cleft lip and palate patient. Subjects Seventy-one cleft lip and palate patients underwent Le Fort I maxillary advancement osteotomy between 1988 and 1998, and 58 patients (42 unilateral cleft and 16 bilateral cleft) with complete data were investigated for relapse by clinical and cephalometric analysis. The clinical follow-up period ranged from 1.5 to 8.5 years (mean 2.5 years). Results Horizontal advancement averaged 6.9 mm. There was a significant correlation between surgical movement and postoperative relapse in both the horizontal and vertical planes. In vertical repositioning, 15 patients had maxillary intrusion and 31 had inferior repositioning. There was a significant difference between the intrusion group and the inferior repositioning group. There was a significant correlation between surgical and postoperative rotation regardless of the direction. Other factors were evaluated by the horizontal relapse rate. Type of cleft and the rate of relapse were statistically associated. A relapse was more likely to occur in patients with bilateral cleft. There were no significant associations with the rate of relapse in type of operations or previous alveolar bone grafting. There was no significant correlation between the rate of relapse and the number of missing anterior teeth, postoperative overbite and overjet, and age at operation. Four of 71 patients experienced major relapse, and 3 of them underwent jaw surgery again. Conclusions Based on clinical and cephalometric analysis, two-jaw surgery should be performed in cases of severe maxillary hypoplasia, and overcorrection may be useful in inferior repositioning or surgical rotation. Special attention should be paid to the patient with bilateral cleft, multiple missing teeth, or shallow postoperative overbite.

Стилі APA, Harvard, Vancouver, ISO та ін.

23

Khojasteh, Arash, Hassan Mohajerani, Fatemeh Momen-Heravi, Mahmood Kazemi, and Marzieh Alikhasi. "Sandwich Bone Graft Covered With Buccal Fat Pad in Severely Atrophied Edentulous Maxilla: A Clinical Report." Journal of Oral Implantology 37, no. 3 (June 1, 2011): 361–66. http://dx.doi.org/10.1563/aaid-joi-d-09-00141.1.

Повний текст джерела

Анотація:

Abstract A 48-year-old woman with a severely atrophied maxilla was treated with open sinus augmentation surgery along with Le Fort I osteotomy with a pedicled buccal fat pad graft to position the maxilla in a right occlusal plane with respect to the mandible and to construct adequate bone volume allowing proper implant placement. Six dental implants were inserted in the maxilla, and a fixed metal-resin screw-retained prosthesis was fabricated for the maxilla and mandible.

Стилі APA, Harvard, Vancouver, ISO та ін.

24

Liao, Yu-Fang, and Michael Mars. "Hard Palate Repair Timing and Facial Growth in Cleft Lip and Palate: A Systematic Review." Cleft Palate-Craniofacial Journal 43, no. 5 (September 2006): 563–70. http://dx.doi.org/10.1597/05-058.

Повний текст джерела

Анотація:

Objective: To evaluate the effect of timing of hard palate repair on facial growth in patients with cleft lip and palate, with special reference to cranial base, maxilla, mandible, jaw relation, and incisor relation. Design: A systematic review. Methods: The search strategy was based on the key words “facial growth,” “cleft lip palate,” and “timing of (hard) palate repair.” Case reports, case-series, and studies with no control or comparison group in the sample were excluded. Results: Fifteen studies met the selection criteria. All the studies were retrospective and nonrandomized. Five studies used cephalometry and casts, seven used cephalometry, and three used casts. Methodological deficiencies and heterogeneity of the studies prevented major conclusions. Conclusion: The review highlights the importance of further research. Prospective well-designed, controlled studies, especially targeting long-term results, are required to elucidate the effect of timing of hard palate repair on facial growth in patients with cleft lip and palate.

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Krupp, Serge. "Stability after osteotomy of the edentulous maxilla. J. Craniomaxillofac." Plastic and Reconstructive Surgery 86, no. 5 (November 1990): 1050. http://dx.doi.org/10.1097/00006534-199011000-00066.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

26

Liao, Yu-Fang, and Michael Mars. "Hard Palate Repair Timing and Facial Morphology in Unilateral Cleft Lip and Palate: before versus after Pubertal Peak Velocity Age." Cleft Palate-Craniofacial Journal 43, no. 3 (May 2006): 259–65. http://dx.doi.org/10.1597/04-196.1.

Повний текст джерела

Анотація:

Objective To investigate whether timing of hard palate repair, before versus after pubertal peak velocity age, had a significant effect on facial growth in patients with unilateral cleft lip and palate. Design Retrospective cross-sectional study. Setting Sri Lankan Cleft Lip and Palate Project. Patients A total of 125 adult patients with nonsyndromic unilateral cleft lip and palate were recruited and their last cephalometric radiographs were used. Main Outcome Measures Clinical notes were used to record surgical treatment histories. Cephalometry was used to determine facial morphology. Results The patients who had hard palate repair after pubertal peak velocity age had a deeper bony pharynx (Ba-PMP), a longer alveolar maxilla (PMP-A), a longer effective length of the maxilla (Ar-ANS, Ar-A), and as a result had a more favorable anteroposterior jaw relation (ANS-N-Pog, ANB, NAPog) and larger overjet, compared with those who had hard palate repair before pubertal peak velocity age. Conclusion Timing of hard palate repair significantly affects the growth of the maxilla in patients with unilateral cleft lip and palate. Hard palate repair after (versus before) pubertal peak velocity age has a smaller adverse effect on the forward growth of the maxilla. This timing affects the forward displacement of the basal maxilla and the anteroposterior development of the maxillary dentoalveolus.

Стилі APA, Harvard, Vancouver, ISO та ін.

27

Upadhyaya, Chandran, Mohan Baliga, and Premalatha Shetty. "Soft Tissue Changes after Orthognathic Surgery: A Study." Orthodontic Journal of Nepal 1, no. 1 (November 1, 2011): 47–51. http://dx.doi.org/10.3126/ojn.v1i1.9367.

Повний текст джерела

Анотація:

Aim and objective: The main aim and objectives of this study was to determine the changes in the facial soft tissue profile following orthognathic surgery, to evaluate eventual treatment effects on stability of facial aesthetics and degree of predictability of these changes. Materials and method: 15 numbers of patients underwent with le fort I, anterior maxillary osteotomy, genioplasty and bimaxillary surgery. The alar base cinch suture and the V-Y closure techniques were used in each maxillary procedure. The criteria applied included an average follow-up of 6 months post-operatively. Results: In this study preoperative and postoperative cephalometric tracing were compared to analyze the soft tissue profile changes in relation to hard tissue changes in both upper and lower lip and chin regions after double jaw surgery. Only horizontal changes were analyzed for which an X-Y coordinate system was used. The upper lip responded variably to the direction and amount of maxillary positioning. The predictability and the significance of changes of soft tissue in relation to hard tissue are variable as it reaches towards the nose. Conclusion: It is important for the clinician to realize that numerous factors of variability exist so that he can understand that the soft-tissue profile will sometimes deviate quite markedly from what is expected, in spite of careful planning.

Стилі APA, Harvard, Vancouver, ISO та ін.

28

Ruslin, Muhammad. "Sinus lifting dengan teknik lateral window dan transalveolar osteotomy Lateral window and transalveolar osteotomy sinus lifting technique." Journal of Dentomaxillofacial Science 10, no. 2 (June 30, 2011): 111. http://dx.doi.org/10.15562/jdmfs.v10i2.266.

Повний текст джерела

Анотація:

The insertion of dental implants in atrophy maxilla is a complicated issue because no bone support due to expansionof maxillary sinus and atrophy of maxillary ridge alveolar. Surgery by sinus lifting with autogenous bonetransplantation has been proven to be an acceptable treatment to get bone support. The lateral window techniqueand transalveolar osteotomy sinus lifting are the methods to correct the height of inadequate bone in the posteriorarea of maxilla for preparation of implan dental insertion. Technique of transalveolar osteotomy sinus lifting isnoninvasive compared to lateral window sinus lifting technique.

Стилі APA, Harvard, Vancouver, ISO та ін.

29

Liao, Yu-Fang, Timothy J. Cole, and Michael Mars. "Hard Palate Repair Timing and Facial Growth in Unilateral Cleft Lip and Palate: A Longitudinal Study." Cleft Palate-Craniofacial Journal 43, no. 5 (September 2006): 547–56. http://dx.doi.org/10.1597/05-119.

Повний текст джерела

Анотація:

Objective: To investigate whether timing of hard palate repair had a significant effect on facial growth in patients with unilateral cleft lip and palate (UCLP). Design: Retrospective longitudinal study. Setting: Sri Lankan Cleft Lip and Palate Project. Patients: A total of 104 patients with nonsyndromic UCLP who had hard palate repair by age 13 years, with their 290 cephalometric radiographs taken after lip and palate repair. Main Outcome Measures: Clinical notes were used to record surgical treatment histories. Cephalometry was used to determine facial morphology and growth rate. Results: Timing of hard palate repair had a significant effect on the length and protrusion of the alveolar maxilla (PMP-A and SNA, respectively) and the anteroposterior alveolar jaw relation (ANB) at age 20 years but not on their growth rates. Conclusion: Timing of hard palate repair significantly affects the growth of the maxilla in patients with UCLP. Late hard palate repair has a smaller adverse effect than does early hard palate repair on the growth of the maxilla. This timing effect primarily affects the anteroposterior development of the maxillary dentoalveolus and is attributed to the development being undisturbed before closure of the hard palate.

Стилі APA, Harvard, Vancouver, ISO та ін.

30

Holmes, Jon D., and D. Mark Clark. "A New Osteotomy Design for Surgical Expansion of the Maxilla: The Oblique Maxillary Sagittal Osteotomy." Journal of Oral and Maxillofacial Surgery 64, no. 2 (February 2006): 344–46. http://dx.doi.org/10.1016/j.joms.2005.10.023.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Behnia, Hossein, Shahram Nazerani, Mohammad Hosein Kalantar Motamedi, and Hossein Dashti. "Comprehensive Reconstruction of the Maxilla After a Failed Premaxillary Osteotomy." Annals of Plastic Surgery 62, no. 1 (January 2009): 59–62. http://dx.doi.org/10.1097/sap.0b013e31817daddf.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Thongdee, Pornpaka, and Nabil Samman. "Stability of Maxillary Surgical Movement in Unilateral Cleft Lip and Palate with Preceding Alveolar Bone Grafting." Cleft Palate-Craniofacial Journal 42, no. 6 (November 2005): 664–74. http://dx.doi.org/10.1597/04-042r.1.

Повний текст джерела

Анотація:

Objective To evaluate the long-term three-dimensional stability of Le Fort I maxillary osteotomy in patients with unilateral cleft lip and palate (CLP) who had preceding alveolar bone grafting. Design Analysis of prospectively collected data. Setting University teaching hospital and postgraduate training center. Subjects Thirty consecutive patients with unilateral cleft lip and palate, who underwent the procedure between 1990 and 1999, satisfied the inclusion criteria and had complete records. There were 9 males and 21 females, with an age range of 14 to 28 years (mean, 18 years), and follow-up range of 12 to 66 months (mean, 62 months). Methods Cephalometric and study cast analyses using pre- and postoperative records (3, 6, 12, 24, and 36 months). Evaluation of surgical movement and postsurgical change at all above time intervals was carried out to determine stability of surgical maxillary movement in the horizontal and vertical planes and to identify rotational and transverse relapse. Results Total relapse of surgical movement was 31% in the horizontal plane and 52% in the vertical plane, as well as 30% rotational. Relapse correlated with extent of surgical movement, and most relapse occurred in the first 6 months after surgery. No significant transverse relapse was documented. Conclusion Alveolar bone grafting prior to osteotomy stabilizes the transverse dimension of the dental arch, but does not improve horizontal, vertical, or rotational relapse, which remains significant. Correlation of relapse with extent of surgical movement does suggest that planned over-correction is a reasonable option.

Стилі APA, Harvard, Vancouver, ISO та ін.

33

Reddy, G. V., G. Siva Prasad Reddy, N. V. S. Sekhar Reddy, and Aswin Kumar. "Surgical Management of Aggressive Central Giant Cell Granuloma of Maxilla through Le Fort I Access Osteotomy." Journal of Clinical Imaging Science 2 (May 23, 2012): 28. http://dx.doi.org/10.4103/2156-7514.96543.

Повний текст джерела

Анотація:

Giant cell granuloma (GCG) is an uncommon bony lesion in the head and neck region, most commonly affecting the maxilla and mandible and has a female predilection. The clinical behavior of central GCG ranges from a slowly growing asymptomatic swelling to an aggressive lesion. The clinical, radiological, histological features and management of an aggressive GCG of maxilla in an 18-year-old female patient are described and discussed. It is emphasized that surgery is the traditional and still the most accepted treatment for GCG. Le Fort I osteotomy has been advocated as one of the access osteotomy for the surgical management of aggressive and extensive GCG involving the maxilla. The postoperative morbidity and recurrence have been discussed.

Стилі APA, Harvard, Vancouver, ISO та ін.

34

Güler, Nurhan, Fatih Cabbar, and Gonca Duygu. "Correction of malocclusion by anterolateral osteotomy in a traumatized maxilla." Dental Traumatology 25, no. 4 (August 2009): 447–50. http://dx.doi.org/10.1111/j.1600-9657.2009.00802.x.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

35

Manna, Louis M., and Julius R. Berger. "Technique for vertical positioning of the maxilla after Le Fort osteotomy." Journal of Oral and Maxillofacial Surgery 54, no. 5 (May 1996): 652. http://dx.doi.org/10.1016/s0278-2391(96)90654-0.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

36

Mancha de la Plata, M., M. Muñoz Guerra, A. L. Capote, L. Naval Gias, G. Y. Cho Lee, P. L. Martos Diaz, C. Sanchez Acedo, et al. "P.385 Le Fort I osteotomy – bone grafts for maxilla rehabilitation." Journal of Cranio-Maxillofacial Surgery 36 (September 2008): S264. http://dx.doi.org/10.1016/s1010-5182(08)72173-5.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

37

Politi, Massimo, and Massimo Robiony. "Localized alveolar sandwich osteotomy for vertical augmentation of the anterior maxilla." Journal of Oral and Maxillofacial Surgery 57, no. 11 (November 1999): 1380–82. http://dx.doi.org/10.1016/s0278-2391(99)90883-2.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

38

Keller, Eugene E. "Resection of a myxoma of the maxilla via LeFort I osteotomy." Journal of Oral and Maxillofacial Surgery 46, no. 7 (July 1988): 609–13. http://dx.doi.org/10.1016/0278-2391(88)90154-1.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

39

Gil, J. N., J. D. P. Claus, F. E. B. Campos, and S. M. Lima. "Management of the severely resorbed maxilla using Le Fort I osteotomy." International Journal of Oral and Maxillofacial Surgery 37, no. 12 (December 2008): 1153–55. http://dx.doi.org/10.1016/j.ijom.2008.10.003.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

40

Tahmasbi, Soodeh, Abdolreza Jamilian, Rahman Showkatbakhsh, Fereydoun Pourdanesh, and Mohammad Behnaz. "Cephalometric changes in nasopharyngeal area after anterior maxillary segmental distraction versus Le Fort I osteotomy in patients with cleft lip and palate." European Journal of Dentistry 12, no. 03 (July 2018): 393–97. http://dx.doi.org/10.4103/ejd.ejd_374_17.

Повний текст джерела

Анотація:

ABSTRACT Objective: The present study was designed to compare the effects of two surgical methods, anterior maxillary segmental distraction (AMSD) versus conventional Le Fort I osteotomy, on cephalometric changes of velopharyngeal area of patients with cleft lip and palate. Materials and Methods: This study was conducted on 20 CLP in two groups. The first group had classic Le Fort I maxillary advancement and the second group had AMSD with a modified hyrax as an intraoral tooth-borne distractor. In the second group, 1 week after the surgery, activation of hyrax screw was started with the rate of 2 times a day for about 10 days. Initial and final lateral cephalograms were traced and analyzed by OrthoSurgerX software. Results: The changes in variables evaluating velopharyngeal status showed a significant difference between the two groups. In Group A (conventional), the mean of nasopharyngeal area and Nasopharynx floor length showed a significant increase (P < 0.05) after the surgery, while in Group B (DO), the trend of changes was vice-versa. The changes in SNA, overjet, and soft-tissue convexity were similar in both groups. Conclusion: AMSD can improve facial profile, almost similar to the conventional Le Fort I advancement, while there is a significant decrease in nasopharyngeal; hereby there is no increase in the velopharyngeal sphincter.

Стилі APA, Harvard, Vancouver, ISO та ін.

41

Shimazaki, Kazuo, Kunihiko Otsubo, Ikuo Yonemitsu, Sachiko Kimizuka, Susumu Omura, and Takashi Ono. "Severe unilateral scissor bite and bimaxillary protrusion treated by horseshoe Le Fort I osteotomy combined with mid-alveolar osteotomy." Angle Orthodontist 84, no. 2 (September 25, 2013): 374–79. http://dx.doi.org/10.2319/050513-344.1.

Повний текст джерела

Анотація:

ABSTRACT This report describes an orthognathic surgical case employing horseshoe Le Fort I osteotomy (HLFO) combined with mid-alveolar osteotomy and bilateral sagittal split ramus osteotomy (BSSRO) for a patient with severe unilateral scissor bite and bimaxillary protrusion. A female patient (aged 26 years, 2 months) presented with a chief complaint of dysmasesis caused by scissor bite on the right side. The clinical examination revealed difficulty in lip closure and a convex profile. Overerupted right maxillary premolars and molars and lingual tipping of the right mandibular premolars and molars were indicated before treatment. After 3 months of presurgical orthodontic treatment, two-jaw surgery involving a combination of HLFO with mid-alveolar osteotomy and BSSRO was performed. A good interdigitation in the right side was established by superior-posterior-medial movement of the dento-alveolar segment of the maxilla. Next, both the maxilla and mandible were moved superiorly and posteriorly to correct the improper lip protrusion, thereby improving the patient's profile. Our results suggest that this new orthognathic surgery technique—achieved by combining HLFO with mid-alveolar osteotomy and BSSRO—is effective for adult patients exhibiting severe unilateral scissor bite and bimaxillary protrusion.

Стилі APA, Harvard, Vancouver, ISO та ін.

42

Sinobad, Vladimir, Ljiljana Strajnic, and Tamara Sinobad. "Skeletal changes in patients with mandibular prognathism after mandibular set back and bimaxillary surgery: A comparative cephalometric study." Vojnosanitetski pregled 77, no. 4 (2020): 395–404. http://dx.doi.org/10.2298/vsp171017087s.

Повний текст джерела

Анотація:

Bacground/Aim. Recently, maxillary and bimaxillary surgery gained the primacy in the surgical correction of class III deformities. The aim of this investigation was to compare the changes in the skeletal relationships in patients with mandibular prognathism after bimaxillary surgery. Methods. The study included 70 subjects divided into three groups. Twenty class III patients of the experimental group 1 underwent bilateral sagittal ramus osteotomy and twenty patients of the experimental group 2 were subjected to bimaxillary surgery. The control group consisted of 30 subjects with skeletal class I and physiological occlusion. Cephalometric research was conducted on 110 lateral cephalometric radiographs made in subjects of the experimental groups 1 and 2 before and after surgery and in subjects of the control group. Using the computer program ?Dr. Ceph?, 30 linear and angular skeletal variables were analyzed on each radiograph. Results. Bimaxillary osteotomies changed most of variables that characterize the mandibular prognathism. The changes in the sagittal plane included the significant increase of sella-nasion to the A point (SNA) angle (by 4? on the average) and the A point to B point (ANB) angle (6?), and significant reduction in angles sellanasion to the B point (SNB) (3?), gonial angle (ArGoMe) (8?), gonial angle inferior (NGoMe) (6.2?), and Bj?rks sum (7?). The vertical relationships were normalized by significant reduction in overall anterior face height N-Me (by 5 mm on the average), the lower anterior face height ANS-Me (4 mm), significant increase in the total posterior face height S-Go (2.5?3 mm), lower posterior face height PNS-Go (4 mm), and significant reduction of the basal and mandibular plane angles. Conclusion. Compared to the isolated mandibular operations, bimaxillary surgery changes more efficiently the sagittal and vertical skeletal relations in patients with class III deformities and harmonizes more successfully the entire skeletal facial profile.

Стилі APA, Harvard, Vancouver, ISO та ін.

43

Zucconi, Marco, Luigi Ferini-Strambi, Stefano Palazzi, Chiara Curci, Emanuele Cucchi, and Salvatore Smirne. "Craniofacial Cephalometric Evaluation in Habitual Snorers with and without Obstructive Sleep Apnea." Otolaryngology–Head and Neck Surgery 109, no. 6 (December 1993): 1007–13. http://dx.doi.org/10.1177/019459989310900606.

Повний текст джерела

Анотація:

Cephalometry has been used to evaluate soft tissue and craniofacial dimensions in moderate-to-severe obstructive sleep apnea syndrome (OSA), but rarely in habitual snoring, the preclinical stage of OSA. This study deals with craniofacial bone measurements in a sample of 28 male habitual snorers with and without OSA, and 10 healthy non-snorers. Habitual snorers showed a significant decrease in sagittal dimensions of the cranial base and mandibular bone; there was also a shorter maxilla in group B (apnea plus hypopnea index more than 10) with respect to group A (apnea plus hypopnea index less or equal to 10). Facial height and angle dimensions were not different between snorers and non-snorers. These findings indicate that some habitual snorers may have some anatomic disposition to upper airway obstruction during sleep.

Стилі APA, Harvard, Vancouver, ISO та ін.

44

Koo Min Chee, C. A., D. J. Brierley, K. D. Hunter, C. Pace, and A. J. McKechnie. "Surgical ciliated cyst of the maxilla following maxillary osteotomy: a case report." Oral Surgery 7, no. 1 (July 22, 2013): 39–41. http://dx.doi.org/10.1111/ors.12041.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

45

Mikovic, Nikola, Milos Lazarevic, Zoran Tatic, Sanja Krejovic-Trivic, Milan Petrovic, and Aleksandar Trivic. "Radiographic cephalometry analysis of condylar position after bimaxillary osteotomy in patients with mandibular prognathism." Vojnosanitetski pregled 73, no. 4 (2016): 318–25. http://dx.doi.org/10.2298/vsp141210051m.

Повний текст джерела

Анотація:

Background/Aim. Postoperative condylar position is a substantial concern in surgical correction of mandibular prognathism. Orthognathic surgery may change condylar position and this is considered a contributing factor for early skeletal relapse and the induction of temporomandibular disorders. The purpose of this study was to evaluate changes in condylar position, and to correlate angular skeletal measurements following bimaxillary surgery. Methods. On profile teleradiographs of 21 patients with mandibular angular and linear parametres, the changes in condylar position, were measured during preoperative orthodontic treatment and 6 months after the surgical treatment. Results. A statistically significant difference in values between the groups was found. The most distal point on the head of condyle point (DI) moved backward for 1.38 mm (p = 0.02), and the point of center of collum mandibulae point (DC) moved backward for 1.52 mm (p = 0.007). The amount of upward movement of the point DI was 1.62 mm (p = 0.04). Conclusion. In the patients with mandibular prognathism, the condyles tend to migrate upward and forward six months after bimaxillary surgery.

Стилі APA, Harvard, Vancouver, ISO та ін.

46

Maharaj, K., R. Cedrola, and T. Mirza. "Asystole during Le Fort 1 osteotomy: the trigeminovagal reflex." Annals of The Royal College of Surgeons of England 102, no. 9 (November 2020): e1-e3. http://dx.doi.org/10.1308/rcsann.2020.0126.

Повний текст джерела

Анотація:

The trigeminovagal reflex is a phenomenon that occurs rarely during maxillofacial surgery. Previously described as the oculocardiac reflex, this reflex can occur during ocular and periocular surgery. To be more anatomically precise, it was renamed the trigeminocardiac or trigeminovagal reflex, since stimulation of any part of the trigeminal nerve can elicit this reflex arc. We describe a case of asystole during mobilization of a maxilla following a Le Fort 1 osteotomy.

Стилі APA, Harvard, Vancouver, ISO та ін.

47

E., Valencia, Hernandez M., and Quiros R. "Technique for vertical positioning of the maxilla after Le Fort I osteotomy." International Journal of Oral and Maxillofacial Surgery 28 (January 1999): 9. http://dx.doi.org/10.1016/s0901-5027(99)80700-0.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

48

Wu, Z., Z. Li, Y. Dong, S. Yeweng, X. Yang, and Z. Li. "Aesthetic evaluation after the modified anterior segmental osteotomy on the maxilla protrusion." International Journal of Oral and Maxillofacial Surgery 38, no. 5 (May 2009): 472. http://dx.doi.org/10.1016/j.ijom.2009.03.269.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

49

Hasan, Wael, Michael J. Daly, Harley H. L. Chan, Jimmy Qiu, and Jonathan C. Irish. "Intraoperative cone‐beam CT‐guided osteotomy navigation in mandible and maxilla surgery." Laryngoscope 130, no. 5 (May 21, 2019): 1166–72. http://dx.doi.org/10.1002/lary.28082.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

50

Liao, Yu-Fang, and Michael Mars. "Long-Term Effects of Palate Repair on Craniofacial Morphology in Patients with Unilateral Cleft Lip and Palate." Cleft Palate-Craniofacial Journal 42, no. 6 (November 2005): 594–600. http://dx.doi.org/10.1597/04-077r.1.

Повний текст джерела

Анотація:

Objective To identify the long-term effects of palate repair on craniofacial growth in patients with unilateral cleft lip and palate (UCLP). Design Retrospective cross-sectional study. Setting Sri Lankan Cleft Lip and Palate Project. Subjects Forty-eight adults with nonsyndromic unilateral cleft lip and palate, 29 men and 19 women, had lip repair only (LRO group). Fifty-eight adults with nonsyndromic unilateral cleft lip and palate, 35 men and 23 women, had lip and palate repairs by the age of 9 (LPR group). Main Outcome Measures Clinical notes were used to record surgical treatment histories. Cephalometry was used to determine craniofacial morphology. Results In the lip and palate repair group, the depth of the bony pharynx (Ba-PMP), the maxillary length at the alveolar level (PMP-A), the effective length of the maxilla (Ar-IZ, Ar-ANS, Ar-A), the maxillary protrusion (S-N-ANS, SNA), the anteroposterior jaw relation (ANS-N-Pog, ANB), and the overjet were smaller than in the lip repair only group. There were no significant differences in the maxillary length at the basal level (PMP-IZ, PMP-ANS) and the anterior and posterior maxillary heights (N-ANS and R-PMP, respectively) in the two groups. Conclusion Palate repair inhibits the forward displacement of the basal maxilla and anteroposterior development of the maxillary dentoalveolus in patients with unilateral cleft lip and palate. Palate repair has no detrimental effects on the downward displacement of the basal maxilla or on palatal remodeling in patients with unilateral cleft lip and palate.

Стилі APA, Harvard, Vancouver, ISO та ін.

Статті в журналах з теми "Cephalometry; Maxilla – Surgery; Osteotomy"

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями