Effectiveness of Methods to Remove Residual Orthodontic Adhevsie

Study Overview
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Brief Summary
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The aim of this study is to compare the clinical efficacy of different residual orthodontic adhesive removing methods for rebonding debonded metal attachments.

Detailed Description
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To evaluate and compare the bond failure rates of rebonded brackets using two methods to remove the adhesive remnant and comparing them with contralateral teeth. To evaluate and compare the bond failure rates of rebonded brackets between different quadrants and arches. To evaluate and compare the bond failure rates of rebonded molar tubes using two methods to remove the adhesive remnant and comparing them with contralateral teeth. To evaluate and compare the bond failure rates of rebonded molar tubes between different quadrants and arches.

Official Title
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The Effectiveness of Methods for Removing Residual Orthodontic Adhesive From Debonded Metal Attachments: A Randomized Clinical Trial

Conditions
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Orthodontic Appliance Complication

Intervention / Treatment
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* Procedure: Recycling orthodontic brackets


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients need metal fixed orthodontic appliance treatment; Complete set of permanent dentition with fully erupted teeth on both arches; Intact teeth and mainly their buccal surfaces are free from caries, fillings, or gingival hyperplasia; No occlusal interferences that can affect the ideal position of attachments, especially in the lower arch. Exclusion Criteria: patients have crown, missing teeth, or craniofacial anomalies. patients have congenital enamel defects specially their buccal surface.

Ages Eligible for Study
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Minimum Age: 12 Years
Maximum Age: 25 Years

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: Screening
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: split-mouth, cross-quadrant
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: sandblasted group (T1)<br>the side of mouth patient that receives fixed orthodontic appliance that renewed by sandblast | Procedure: Recycling orthodontic brackets<br>* T0: The adhesive removal will be performed by high-speed hand piece with tungsten carbide bur. the bur will be changed every five attachments. T1: Control group of T0. T2: The adhesive removal will be performed by sandblasting via Micro-etcher. T3: Control group of T2.<br>|
| Placebo Comparator: control group (T3)<br>the side of mouth patient that receives new fixed orthodontic appliance. | Procedure: Recycling orthodontic brackets<br>* T0: The adhesive removal will be performed by high-speed hand piece with tungsten carbide bur. the bur will be changed every five attachments. T1: Control group of T0. T2: The adhesive removal will be performed by sandblasting via Micro-etcher. T3: Control group of T2.<br>|
| Experimental: tungsten bur group (T0)<br>the side of mouth patient that receives fixed orthodontic appliance that renewed by tungsten bur. | Procedure: Recycling orthodontic brackets<br>* T0: The adhesive removal will be performed by high-speed hand piece with tungsten carbide bur. the bur will be changed every five attachments. T1: Control group of T0. T2: The adhesive removal will be performed by sandblasting via Micro-etcher. T3: Control group of T2.<br>|
| Placebo Comparator: control group (T2)<br>the side of mouth patient that receives new fixed orthodontic appliance. | Procedure: Recycling orthodontic brackets<br>* T0: The adhesive removal will be performed by high-speed hand piece with tungsten carbide bur. the bur will be changed every five attachments. T1: Control group of T0. T2: The adhesive removal will be performed by sandblasting via Micro-etcher. T3: Control group of T2.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The number of bonding failures will be compared using the chi-square test. | evaluate and compare the bond failure rates. different quadrants and arches.To evaluate and compare the bond failure rates of rebonded attachments(brackets and molar tubes)using two methods (Tungsten carbide bur and sandblasting)) to remove the adhesive remnant and comparing them with contralateral teeth. | baselines | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The bonding failure between each quadrant will be compared by one way ANOVA. | evaluate and compare the bond failure rates. different quadrants and arches. | bsaelines | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Recycling, Sandblasting, Metal Bracket.