Analysis of facial features and prediction of lip position in skeletal class III malocclusion adult patients undergoing surgical-orthodontic treatment

2021 ◽  
Author(s):  
Wenhsuan Lu ◽  
Guangying Song ◽  
Qiannan Sun ◽  
Liying Peng ◽  
Yunfan Zhang ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Adult Patients ◽  
Facial Features ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class

Traction of impacted canines in a skeletal Class III malocclusion: A challenging orthodontic treatment

2017 ◽  
Vol 151 (6) ◽  
pp. 1159-1168 ◽  
Author(s):  
José Tarcísio Lima Ferreira ◽  
Fábio Lourenço Romano ◽  
Maria Bernadete Sasso Stuani ◽  
Fábio Carvalho Assed Carneiro ◽  
Mírian Aiko Nakane Matsumoto
Keyword(s):  
Orthodontic Treatment ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Impacted Canines

scholarly journals Palatal bone thickness at the implantation area of maxillary skeletal expander in adult patients with skeletal Class III malocclusion: a cone-beam computed tomography study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Weiting Chen ◽  
Kaili Zhang ◽  
Dongxu Liu
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Adult Patients ◽  
Cone Beam ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Bone Thickness ◽  
Skeletal Class ◽  
Significant Difference ◽  
Palatal Bone

Abstract Background Maxillary skeletal expanders (MSE) is effective for the treatment of maxillary transverse deformity. The purpose of the study was to analyse the palatal bone thickness in the of MSE implantation in patients with skeletal class III malocclusion. Methods A total of 80 adult patients (40 males, 40 females) with an average angle before treatment were divided into two groups, the skeletal class III malocclusion group and the skeletal I malocclusion group, based on sagittal facial type. Each group consisted of 40 patients, with a male to female ratio of 1:1. A cone-beam computed tomography scanner was employed to obtain DICOM data for all patients. The palatal bone thickness was measured at 45 sites with MIMICS 21.0 software, and SPSS 22.0 software was employed for statistical analysis. The bone thickness at different regions of the palate in the same group was analysed with one-way repeated measures ANOVA. Fisher’s least significant difference-t method was used for the comparison of pairs, and independent sample t test was employed to determine the significance of differences in the bone thickness at the same sites between the two groups. Results Palatal bone thickness was greater in the middle region of the midline area (P < 0.01), while the thickness in the middle and lateral areas in both groups was generally lower (P < 0.001). The bone in the anterior, middle, and posterior regions of the two groups became increasingly thin from the middle area toward the parapalatine region. The palatal bone was significantly thinner in the area 9.0 mm before the transverse palatine suture in the midline area, 9.0 mm before and after the transverse palatine suture in the middle area, and 9.0 mm after the transverse palatine suture in the lateral area. Conclusion The palatal bone was thinner in patients with class III malocclusion than in patients with class I malocclusion, with significant differences in some areas. The differences in bone thickness should be considered when MSE miniscrews are implanted. The anterior and middle palatal areas are safer for the implantation of miniscrews, while the thinness of the posterior palatal bone increases the risk of the miniscrews falling off and perforating.

Changes of mandibular dental arch during surgical-orthodontic treatment in skeletal class III malocclusion individuals

2008 ◽  
Vol 38 (4) ◽  
pp. 283 ◽  
Author(s):  
Hyung-Jin Nam ◽  
Woo-Sung Son ◽  
Soo-Byung Park ◽  
Seong-Sik Kim
Keyword(s):  
Orthodontic Treatment ◽  
Dental Arch ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class

scholarly journals Compensatory orthodontic treatment of skeletal Class III malocclusion with anterior crossbite

2014 ◽  
Vol 19 (1) ◽  
pp. 113-122 ◽  
Author(s):  
José Valladares Neto
Keyword(s):  
Case Report ◽  
Orthognathic Surgery ◽  
Orthodontic Treatment ◽  
Cranial Base ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Orthodontic Movement ◽  
Main Complaint ◽  
Clinical Stability

INTRODUCTION: This case report describes the orthodontic treatment of an adult patient with skeletal Class III malocclusion and anterior crossbite. A short cranial base led to difficulties in establishing a cephalometric diagnosis. The patient's main complaint comprised esthetics of his smile and difficulties in mastication. METHODS: The patient did not have the maxillary first premolars and refused orthognathic surgery. Therefore, the treatment chosen was orthodontic camouflage and extraction of mandibular first premolars. For maxillary retraction, the vertical dimension was temporarily increased to avoid obstacles to orthodontic movement. RESULTS: At the end of the treatment, ideal overjet and overbite were achieved. CONCLUSION: Examination eight years after orthodontic treatment revealed adequate clinical stability. This case report was submitted to the Brazilian Board of Orthodontics and Facial Orthopedics (BBO) as part of the requirements to become a BBO diplomate.

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