Comparison of temporomandibular joint and ramus morphology between class II and class III cases before and after bi-maxillary osteotomy

2017 ◽  
Vol 45 (12) ◽  
pp. 2002-2009 ◽  
Author(s):  
Ran Iguchi ◽  
Kunio Yoshizawa ◽  
Akinori Moroi ◽  
Takamitsu Tsutsui ◽  
Asami Hotta ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Class Ii ◽  
Class Iii ◽  
Maxillary Osteotomy ◽  
Before And After

scholarly journals Impact of orthognathic surgery on the prevalence of dehiscence in Class II and Class III surgical-orthodontic patients:

2021 ◽  
Author(s):  
Monique Cimão dos Santos ◽  
Lilian Cristina Vessoni Iwaki ◽  
José Valladares-Neto ◽  
Maristela Sayuri Inoue-Arai ◽  
Adilson Luiz Ramos
Keyword(s):  
Orthognathic Surgery ◽  
Alveolar Bone ◽  
Class Ii ◽  
Vascular Supply ◽  
Cone Beam ◽  
Third Molars ◽  
Class Iii ◽  
Before And After ◽  
Orthodontic Patients ◽  
Supply Reduction

ABSTRACT Objectives The objectives were to evaluate and compare the presence of bone dehiscence before and after orthognathic surgery. Materials and Methods In this retrospective study, 90 cone-beam computed tomography (CBCT) scans from 45 patients were evaluated. Class II (n = 23) and Class III (n = 22) orthodontic patients who were being prepared for orthognathic surgery were measured. CBCT scans were obtained about 30 days prior to (T0) and 6 months after (T1) double jaw orthognathic surgery. The distance between the cemento-enamel junction (CEJ) and the alveolar bone crest was assessed at the buccal and lingual surfaces of all teeth, on both sides and arches, except for the second premolars and the second and third molars. A total of 1332 sites were measured for Class II (644) and Class III (688) patients. The software used was OsiriX (version 3.3 32-bit). Data were compared with Wilcoxon and McNemar tests at the 5% level. Results Bone dehiscence before surgery was present in 26% and 15% of the Class II and III groups, respectively. The presence of dehiscence increased to 31% in the Class II and 20% in the Class III patients after surgery (P < .05). Conclusions The prevalence of dehiscence increased slightly in Class II and Class III surgical-orthodontic patients after orthognathic surgery. Temporary vascular supply reduction and oral hygiene difficulties may explain these results; however, more studies are needed.

Clinical and Instrumental Evaluation of the Temporomandibular Joint Before and After Surgical Correction of Asymptomatic Skeletal Class III Patients

2011 ◽  
Vol 22 (2) ◽  
pp. 527-531 ◽  
Author(s):  
Guglielmo Ramieri ◽  
Maria Grazia Piancino ◽  
Gianluigi Frongia ◽  
Giovanni Gerbino ◽  
Paolo Antonio Fontana ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Surgical Correction ◽  
Class Iii ◽  
Skeletal Class ◽  
Instrumental Evaluation ◽  
Before And After

scholarly journals Posisi kondilus setelah perawatan ortodontik pada maloklusi kelas II divisi 1 dengan pencabutan premolarCondylar position after orthodontic treatment in class II division 1 malocclusion with premolar extraction

2021 ◽  
Vol 33 (1) ◽  
pp. 59
Author(s):  
Dhani Ayu Andini ◽  
Maria Purbiati ◽  
Nia Ayu Ismaniati Suria ◽  
Ira Tanti
Keyword(s):  
Temporomandibular Joint ◽  
Orthodontic Treatment ◽  
Joint Space ◽  
Class Ii ◽  
Temporomandibular Joint Disorders ◽  
Premolar Extraction ◽  
Division 1 ◽  
Before And After ◽  
The Right ◽  
Class Ii Division 1

Pendahuluan: Maloklusi kelas II divisi 1 dilaporkan seringkali memicu terjadinya gangguan sendi temporomandibula. Posisi kondilus mengalami perubahan pada akhir perawatan ortodontik dengan pencabutan premolar pada maloklusi kelas II divisi 1. Tujuan penelitian menganalisis posisi kondilus pada akhir perawatan ortodontik supaya dapat memberikan pelayanan yang efektif dan komprehensif kepada pasien. Metode: Jenis penelitian deskriptif observasional dengan desain kohort dilakukan pada Klinik Spesialis RSKGM FKG UI dari Maret sampai Mei 2019. Subjek sebanyak 30 orang mengalami maloklusi kelas II divisi 1 yang memiliki gejala gangguan temporomandibular yang memenuhi kriteria inklusi. Metode sampling yang digunakan adalah sampling konsekutif. Foto transkranial dibandingkan dan diukur ruang sendinya bagian anterior, posterior dan superior dan dianalisis menggunakan uji Mc Nemar. Hasil: Sebelum dan sesudah perawatan ortodontik, posisi kondilus kanan dan kiri tidak mengalami perubahan yang signifikan (p>0,05). Sebelum dan sesudah perawatan ortodontik, AJS (Anterior Joint Space), PJS (Posterior Joint Space), SS (Superior Space) kanan dan kiri tidak mengalami perubahan yang signifikan (p>0,05). Gejala gangguan sendi temporomandibula pada akhir perawatan ortodontik adalah kliking dan krepitasi dilaporkan masih ada sedangkan gejala tidak nyaman dan keterbatasan membuka mulut dilaporkan sudah hilang.  Simpulan: Tidak terdapat perbedaan posisi kondilus kanan dan kiri, sebelum dan sesudah perawatan ortodontik dengan pencabutan premolar pada maloklusi kelas II divisi 1. Keluhan gangguan sendi temporomandibular tidak ditemukan lagi pada akhir perawatan ortodontik.Kata kunci: Posisi kondilus, perawatan ortodontik, maloklusi kelas II divisi 1, pencabutan premolar. ABSTRACTIntroduction: Class II division 1 malocclusion is reported to trigger temporomandibular joint disorders often. The position of the condyles changed at the end of orthodontic treatment with premolar removal in class II division 1 malocclusion. This study aimed to analyse the position of the condyles at the end of orthodontic treatment to provide effective and comprehensive services to patients. Methods: This type of descriptive observational study with a cohort design was conducted at the Specialist Clinic of University of Indonesia Dental Hospital from March to May 2019. Thirty subjects experienced class II division 1 malocclusion who had temporomandibular disorders that met the inclusion criteria. The sampling method used was consecutive sampling. Transcranial radiographs were compared, and anterior, posterior and superior joint spaces were measured and analysed using the McNemar test. Results: Before and after orthodontic treatment, the position of the right and left condyles did not change significantly (p>0.05). Before and after orthodontic treatment, AJS (Anterior Joint Space), PJS (Posterior Joint Space), SS (Superior Space) right and left did not change significantly (p>0.05). Symptoms of temporomandibular joint disorder at the end of orthodontic treatment were clicking, and crepitus was reported to be present, while the symptoms of discomfort and limited opening of the mouth were reported to have disappeared. Conclusion: There is no difference in the position of the right and left condyles before and after orthodontic treatment with premolar extraction in class II division 1 malocclusion. Complaints of temporomandibular joint disorders were not found again at the end of orthodontic treatment. Keywords: Condyle position, orthodontic treatment, class II division 1 malocclusion, premolar extraction.

scholarly journals Association of Temporomandibular Joint Dysfunction, Condylar Position and Dental Malocclusions in Davangere Population

2012 ◽  
Vol 13 (4) ◽  
pp. 528-533 ◽  
Author(s):  
KS Girish ◽  
Malthesh B Savakkanavar ◽  
S Sridhar ◽  
D Dinesh ◽  
GC Ramesh
Keyword(s):  
Temporomandibular Joint ◽  
Clinical Significance ◽  
Signs And Symptoms ◽  
Class Ii ◽  
Class Iii ◽  
Temporomandibular Joint Dysfunction ◽  
Division 1 ◽  
Condylar Position ◽  
Orthodontic Patients ◽  
Left And Right

ABSTRACT Aims: • To study the association between dental malocclusions and temporomandibular joint dysfunction. • To study the association between dental malocclusions and condylar position. • To study the association between temporomandibular (TM) joint dysfunction and condylar position. Methods The subjects were divided into four groups for dental malocclusions viz. class I malocclusion with or without TM dysfunction, class II division 1 malocclusion with or without TM dysfunction, class II division 2 malocclusion with or without TM dysfunction and class III malocclusion with or without TM dysfunction. Once the patient fulfilled the criteria, the presence or absence of signs of TM dysfunction were elicited from the patient. Results It shows the association between TM dysfunction signs and left and right condylar positions. It shows the association between TM dysfunction symptom and left and right condylar positions. It shows the association between dental malocclusions and TM dysfunction signs and symptom. It shows the association between dental malocclusions and left and right condylar positions. Conclusion There was an association between TM dysfunction signs and left and right condylar positions. But, there was no association between TM dysfunction symptoms and left and right condylar positions. There was an association between dental malocclusions and TM dysfunction signs. But there was no association between dental malocclusions and TM dysfunction symptoms. There was an association between dental malocclusions and left condylar position, but there was no association between dental malocclusion and right condylar position. Clinical significance This study indicates that malocclusions and factors of condylar position should be seen as merely cofactors in the sense of one piece of the mosaic in the multifactorial problem of TM dysfunction. TM dysfunction factors that showed significant effects to various malocclusions through this study . This study shows clinical significance of association of various types of dental malocclusions to different conylar positions and TM dysfunction signs and symptoms. Before treating orthodontic patients, one should evaluate and treat the TM disorders for better prognosis. How to cite this article Malthesh B Savakkanavar, Sridhar S, Dinesh D, Girish KS, Ramesh GC. Association of Temporomandibular Joint Dysfunction, Condylar Position and Dental Malocclusions in Davangere Population. J Contemp Dent Pract 2012;13(4):528-533.

scholarly journals Lip Morphological Changes and Differences before and after Orthodontic Treatment

2013 ◽  
Vol 1 (1) ◽  
pp. 5-12
Author(s):  
MR Islam ◽  
T Kitahara ◽  
L Naher ◽  
A Nakasima ◽  
I Takahashi
Keyword(s):  
Adult Female ◽  
Orthodontic Treatment ◽  
Morphological Changes ◽  
Class Ii ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Female Patients ◽  
Significant Difference ◽  
Before And After

Objectives: The objective of this study is to test the hypothesis that there is a difference in the morphology of the lips of Class II div 1 and Class III malocclusion, before and after orthodontic treatment. Methods: The sample subjects included 20 adult female patients with Angle Class II div 1 malocclusion and 30 adult female patients with dento-skeletal Class III malocclusion. Frontal photographs were taken both before and after orthodontic and/or orthognathic treatment. Thirty-five landmarks were placed on each tracing made from the photograph. Thereafter, landmarks were digitized into an x and y coordinates system with the subnasal point as the origin. The Class II pretreatment and posttreatment groups of rest and smile conditions were compared with the Class III group respectively, using t-tests. Results: In the Class II pretreatment group, upper and lower lips positioned downward than that in the Class III group. When smiling, there was no statistically significant difference between the two groups before treatment, whereas after orthodontic treatment both Class II and Class III groups showed the significant difference at rest and on smiling conditions. On smiling condition Class III group showed more upwards and lateral movement of the mouth corners than Class II group. Conclusion: Orthodontic treatment induced larger amount in movement of lips at smiling in both Class II and III patients, which may reflect the emotional changes in the patients after treatment. DOI: http://dx.doi.org/10.3329/bjodfo.v1i1.15971 Ban J Orthod & Dentofac Orthop, October 2010; Vol-1, No.1, 5-12

Perbedaan Analisis Sefalometri Skeletal Sebelum dan Sesudah Perawatan Alat Myofunctional pada Pasien Maloklusi Dentoskeletal Kelas II Divisi I dalam Masa Pertumbuhan dengan Metode Steiner

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Nugroho Ahmad Riyadi
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
T Test ◽  
Analytic Study ◽  
Statistic Analysis ◽  
Twin Block ◽  
Normal Occlusion ◽  
Division 1 ◽  
Before And After ◽  
Class Ii Division 1

The aim of orthodontics treatment is normalization of teeth position in three planes, using various orthodontics appliance to reach the chepalometric standar and normal occlusion. Orthodontic treatment for dentoskeletal class II division 1 malocclusion in growing patients using myofunctional appliance may correct anteroposterior planes of mandibula. This study was a descriptive retrospective analytic study to look at the success of Orthodontic treatment for dentoskeletal class II division 1 in growing patients with myofunctional appliance using chepalometrics analysis Steiner value. The sample used in this study is chepalogram radiographic from patient with dentoskeletal class II division 1 malocclusion in growing patients before and after using myofunctional appliance in PPDGS orthodontics Clinic of Padjadjaran University. Statistic analysis were performed with pair t-test and Wilcoxon. Based on this study, it is concluded that orthodontic treatment with myofunctional appliance such as activator and twin block in growing patient with dentoskeletal class II division 1 malocclusion shows significant changes and compatibility with the normal criteria.

scholarly journals Environmental Cadmium Exposure and Dental Indices in Orthodontic Patients

Healthcare ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 413
Author(s):  
Hui-Ling Chen ◽  
Jason Chen-Chieh Fang ◽  
Chia-Jung Chang ◽  
Ti-Feng Wu ◽  
I-Kuan Wang ◽  
...  
Keyword(s):  
Cadmium Concentration ◽  
Class Ii ◽  
Cadmium Exposure ◽  
Class I ◽  
P Value ◽  
Tooth Decay ◽  
Class Iii ◽  
Orthodontic Patients ◽  
Urine Cadmium ◽  
The Mean

Background. Previous studies have shown that environmental cadmium exposure could disrupt salivary gland function and is associated with dental caries and reduced bone density. Therefore, this cross-sectional study attempted to determine whether tooth decay with tooth loss following cadmium exposure is associated with some dental or skeletal traits such as malocclusions, sagittal skeletal pattern, and tooth decay. Methods. Between August 2019 and June 2020, 60 orthodontic patients with no history of previous orthodontics, functional appliances, or surgical treatment were examined. The patients were stratified into two groups according to their urine cadmium concentrations: high (>1.06 µg/g creatinine, n = 28) or low (<1.06 µg/g creatinine, n = 32). Results. The patients were 25.07 ± 4.33 years old, and most were female (female/male: 51/9 or 85%). The skeletal relationship was mainly Class I (48.3%), followed by Class II (35.0%) and Class III (16.7%). Class I molar relationships were found in 46.7% of these patients, Class II molar relationships were found in 15%, and Class III molar relationships were found in 38.3%. The mean decayed, missing, and filled surface (DMFS) score was 8.05 ± 5.54, including 2.03 ± 3.11 for the decayed index, 0.58 ± 1.17 for the missing index, and 5.52 ± 3.92 for the filled index. The mean index of complexity outcome and need (ICON) score was 53.35 ± 9.01. The facial patterns of these patients were within the average low margin (26.65 ± 5.53 for Frankfort–mandibular plane angle (FMA)). There were no significant differences in the above-mentioned dental indices between patients with high urine cadmium concentrations and those with low urine cadmium concentrations. Patients were further stratified into low (<27, n = 34), average (27–34, n = 23), and high (>34, n = 3) FMA groups. There were no statistically significant differences in the urine cadmium concentration among the three groups. Nevertheless, a marginally significant p-value of 0.05 for urine cadmium concentration was noted between patients with low FMA and patients with high FMA. Conclusion. This analysis found no association between environmental cadmium exposure and dental indices in our orthodontic patients.

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