Comparison of Precision in Brackets Position in Two Indirect Bonding Materials

Study Overview
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Brief Summary
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Objective: To compare the cementation precision of self-ligating brackets between two indirect bonding materials: polyvinylsiloxane and thermal glue. Methods: Split-mouth randomized clinical trial study, with 15 participants. The study will be divided into two groups, Group 1: Polyvinylsiloxane and Group 2: Thermal glue.

Detailed Description
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Patients from the self-ligation clinic who meet the inclusion criteria will be invited to participate and sign the informed consent. For the cementation of the brackets in each patient, the upper arch (right and left) will be divided from the second premolar on the right side to the second premolar on the left side, randomly assigned, to be cemented with a polyvinylsiloxane transfer tray and the other with thermal glue (materials selected for the study).

Official Title
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Comparison of the Precision in the Position of Brackets With Two Indirect Bonding Materials: Polyvinylsiloxane and Thermal Glue. Split-mouth Randomized Clinical Trial.

Conditions
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Orthodontic Appliance Complication, Malocclusion

Intervention / Treatment
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* Procedure: Accuracy of indirect bonding of self-ligating brackets made with polyvinylsiloxane transfers
* Procedure: Accuracy of indirect bonding of self-ligating brackets made with thermal glue transfers


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Permanent dentition with the presence of teeth 15-25 with Crowding in the upper arch according to Little's irregularity index, Teeth with healthy enamel (without hypoplasias, fluorosis, amelogenesis imperfecta), Fully erupted teeth Exclusion Criteria: Absence of teeth selected for the study or that required premolar extractions before starting alignment and leveling Patients with rehabilitation such as crowns, veneers, fractured dentition, atypical morphology Teeth whose bracket loosens at the time of the procedure due to failure of the union Poor oral hygiene Patients with any significant displacement of the tooth that could prevent seating of the transfer tray Study models with bubbles.
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Single Group Assignment
Interventional Model Description: Split-mouth randomized clinical trial study, with 15 participants.
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Polyvinylsiloxane<br>Accuracy of indirect bonding of self-ligating brackets made with polyvinylsiloxane transfers | Procedure: Accuracy of indirect bonding of self-ligating brackets made with polyvinylsiloxane transfers<br>* The uppethat consists of positioning brackets on a study model and they will be extended to the patient's mouth. .r hemiarch of each patient will be randomly placed to be cemented with a transfer tray made of polyvinylsiloxane thermal glue, by means of the indirect technique<br>|
| Active Comparator: Thermal glue<br>Accuracy of indirect bonding of self-ligating brackets made with thermal glue transfers | Procedure: Accuracy of indirect bonding of self-ligating brackets made with thermal glue transfers<br>* The uppethat consists of positioning brackets on a study model and they will be extended to the patient's mouth. .r hemiarch of each patient will be randomly placed to be cemented with a transfer tray made of polyvinylsiloxane thermal glue, by means of the indirect technique<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Linear mesio-distal position | It is the difference in the maximum Euclidean distance (two-dimensional plane) between a point mesial and distal of the bracket in the working model and in the patient's tooth. | 2 weeks | 
| Linear occlusal-gingival position | It is the difference in the maximum Euclidean distance (two-dimensional plane) between a point occlusal and gingival of the bracket in the working model and in the patient's tooth. | 2 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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indirect bonding