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

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-07-31

Study Completion Date

2017-12-31

Brief Summary

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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.

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Detailed Description

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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.

Conditions

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Dentofacial Deformities

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Orthodontic decompensation

Orthodontic decompensation in patients with class III dentofacial deformities

Group Type EXPERIMENTAL

orthodontic decompensation

Intervention Type PROCEDURE

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

Interventions

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orthodontic decompensation

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

Intervention Type PROCEDURE

Eligibility Criteria

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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.

Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes