Influence of Le Fort I advancement and mandibular setback for class III malocclusion on ventilation during sleep

2007 ◽  
Vol 36 (11) ◽  
pp. 1021 ◽  
Author(s):  
R. Foltan ◽  
F. Donev ◽  
J. Hoffmannova ◽  
M. Vlk ◽  
K. Klima
Keyword(s):  
Class Iii ◽  
Class Iii Malocclusion ◽  
Le Fort ◽  
Mandibular Setback ◽  
Le Fort I

Evaluation of Lefort I Osteotomy Line and Pterygomaxillary Junction Region in Patients With Cleft Lip and Palate

2020 ◽  
pp. 105566562096957
Author(s):  
Bahadır Sancar ◽  
Şuayip Burak Duman
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Le Fort I Osteotomy ◽  
Maxillary Hypoplasia ◽  
Le Fort ◽  
Osteotomy Line ◽  
Le Fort I ◽  
Pterygomaxillary Junction

Objective: This study aimed to evaluate the Le Fort I osteotomy line and pterygomaxillary junction via cone-beam computed tomography in individuals with cleft lip and palate (CLP). Design: Retrospective study. Patients and Methods: The study included individuals older than 16 years with CLP, who were scheduled for repositioning of the maxilla by Le Fort I osteotomy, and those with class III malocclusion with maxillary hypoplasia, who were scheduled for Le Fort I osteotomy. The measurements made in the area of the cleft of individuals with CLP were compared with both the side with no cleft and those with class III malocclusion with maxillary hypoplasia. A total of 11 measurements were made on the axial section parallel to the Frankfurt Horizontal plane, corresponding to the lower 1/5 of the distance between the infraorbital foramen and the anterior nasal spine. Results: There were significant differences both in the comparisons made between the individuals with CLP and those without CLP in terms of the canal-anterior alveolar crest (G) and sinus-anterior alveolar crest (L) measurements ( P < .05). The mean measurement values showed that the measurement results were higher in individuals with CLP in general. Conclusion: In conclusion, we believe that there might be difficulties both in osteotomy and down fracture stages during Le Fort I osteotomies performed in individuals with CLP.

scholarly journals Combination of expansion and orthognathic surgery in a severe hyperdivergent skeletal Class III malocclusion

2016 ◽  
Vol 6 ◽  
pp. 312-318
Author(s):  
Anadha Gujar ◽  
M. S. Rani ◽  
Sujala G. Durgekar
Keyword(s):  
Growth Pattern ◽  
Orthognathic Surgery ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Maxillary Expansion ◽  
Le Fort I Osteotomy ◽  
Le Fort ◽  
Skeletal Class ◽  
Posterior Crossbite ◽  
Le Fort I

Class III malocclusions with a severe hyperdivergent growth pattern are very complex to plan and treat. This case report describes the treatment of an adult with a skeletal Class III malocclusion with a midface deficiency, severe bilateral posterior crossbite, and a severe hyperdivergent growth pattern by a combination of a bonded rapid maxillary expansion appliance and surgical procedure of Le Fort I osteotomy for maxillary advancement.

scholarly journals Le Fort I osteotomy as treatment for traumatic class III malocclusion caused by Le Fort III fracture: A case report

2019 ◽  
Vol 25 (1) ◽  
pp. 32-36
Author(s):  
Han Byeol Jin, ◽  
Jee Hyeok Chung ◽  
Kyung Sik Kim ◽  
Seung Hong Kim ◽  
Joon Choe ◽  
...  
Keyword(s):  
Case Report ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Le Fort I Osteotomy ◽  
Le Fort ◽  
Le Fort Iii ◽  
Le Fort I

scholarly journals Stability of bimaxillary surgery on Class III malocclusion treatment

2012 ◽  
Vol 17 (6) ◽  
pp. 41-51 ◽  
Author(s):  
Fernando Antonio Gonçalves ◽  
Vânia Célia Vieira de Siqueira
Keyword(s):  
Muscle Adaptation ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Mandibular Setback ◽  
Skeletal Malocclusion ◽  
Lateral Cephalograms ◽  
Maxillary Surgery ◽  
Bimaxillary Surgery ◽  
Student’S T ◽  
The Stability

OBJECTIVE: To evaluate the stability of bimaxillary surgery in patients with skeletal malocclusion, with the use of rigid internal fixation. METHODS: Lateral cephalograms from 20 patients, 11 males and 9 females, mean age of 26 years and 1 month, were evaluated before surgery, immediately post-operative and at least 6 months after surgery. Nineteen cephalometric measurements were evaluated, and the results were statistically analyzed by means of the Student's t test and the Kruskal-Wallis test. RESULTS: The Le Fort I maxillary advancement surgery showed almost no relapse. There was lack of stability of mandibular setback, with relapse of 37.33% on point B, due to counterclockwise rotation of the mandible between post-operative periods, occurred by better intercuspation after surgery and muscle adaptation. The results showed the same tendencies for both genders. CONCLUSION: It was concluded that on the bimaxillary surgery treatment of Class III malocclusion, the maxillary surgery was very stable, but the mandibular setback recurred. No statistical differences were found in surgical stability between genders.

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