Correlation Between Dental Inclination and Bone Thickness in Patients With Class III Dentofacial Deformities

Dentofacial Deformities Clinical Trial

Official title:

Correlation Between Buccolingual Dental Inclination and Bone Thickness After Orthodontic Decompensation in Patients With Class III Dentofacial Deformities

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02491619
• Other study ID #: sendyk001
• Status: Completed
• Phase: N/A
• First received: June 24, 2015
• Last updated: December 10, 2017
• Start date: July 2015
• Est. completion date: December 2017

Study information

• Verified date: December 2017
• Source: University of Sao Paulo
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The correlation between tooth inclination and bone thickness and the comparison between thickness measurements and buccolingual inclination before and after dental decompensation will be evaluated through tridimensional images in individuals with class III dentofacial deformities.

Description:

Class III dentofacial deformity is associated with important functional, psychological and aesthetic changes and thus individuals affected by this type of deformity are motivated in seeking treatment. The sample will consist of three-dimensional images of 40 individuals with Class III dentofacial deformities. From these images generated by CBCT scans, the buccolingual inclinations of all teeth and maxillo-mandibular alveolar bone thickness in three different heights will be measured (3, 6 and 8 mm) from the cementoenamel junction through the Dolphin 3D® program. The 3D scans of the sample will be evaluated in two stages: the initial stage and after dental decompensation at the end of pre-surgical orthodontic phase. Pearson correlation test will be used to verify the relationship between tooth inclination and bone thickness. The thickness measurements and buccolingual inclination will be compared between treatment times (initial and pre-surgical) using paired Student t-test.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 40
• Est. completion date: December 2017
• Est. primary completion date: December 2017
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 45 Years

Eligibility

Inclusion Criteria:

• Brazilian nationality;

• Class III malocclusion, for molars and canines;

• Concave facial profile;

• Indications for orthodontic-surgical treatment;

• Craniofacial growth finalized ;

• Absence of tooth extractions;

• No local and / or general contraindications for surgery;

• No previous orthodontic-surgical treatment;

• Good dental and periodontal conditions.

Exclusion Criteria:

• Facial asymmetry;

• Absence of teeth (except the third molars);

• Periodontal disease and vertical or horizontal bone resorption;

• Extensive metal restorations;

• Previous orthodontic treatment;

• Root anomalies.

Related Conditions & MeSH terms

• Congenital Abnormalities
• Dentofacial Deformities

Intervention

Procedure:
• orthodontic decompensation
Evaluation of the correlation between bone thickness and tooth inclination previously and after orthodontic treatment of decompensation due to orthognathic surgery

Locations

Country	Name	City	State
Brazil	University of Sao Paulo	Sao Paulo	SP

Sponsors (1)

Lead Sponsor	Collaborator
Michelle Sendyk

Country where clinical trial is conducted

Brazil, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in tooth inclination and bone thickness after tooth decompensation		12 months after the begginning of orthodontic treatment, prior to orthognathic surgery