Micro-abrasive Blasting vs Acid Etching of Orthodontic Bracket Bases

Not Applicable

Completed

• Conditions: Orthodontic Appliances
• Interventions: Device: Acid etched brackets; Device: Sandblasted brackets

• Registration Number: NCT04456114
• Lead Sponsor: Riphah International University

Brief Summary

To describe a method of acid etching the base of a bracket, and to compare the bond failures between micro-abrasive blasted (sandblasted) brackets and acid etched brackets over an eighteen month period

Detailed Description

The aims of this randomized control trial are:

1. To describe a method to chemically etch the bases of stainless steel orthodontic brackets.

2. To observe the changes in the micro-structure of the brackets with sandblasted bases and acid-etched bases under an electron microscope.

3. To compare the failure of orthodontic brackets with a chemical etched base versus a sandblasted base bonded with composite using the conventional acid etch technique, over a follow-up of 18 months

Study Timeline

• Study Start: 2018-06-01
• Primary Completion: 2020-01-31
• Study Completion: 2020-01-31
• Study First Submitted: 2020-06-27
• Status Verified: 2020-07
• Study First Submitted QC: 2020-07-01
• Study First Posted: 2020-07-02
• Last Update Submitted: 2020-07-02
• Last Update Posted: 2020-07-07

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 340

Inclusion Criteria

• Patients about to undergo fixed orthodontic therapy

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Exclusion Criteria

• Patients with cavities, history of fixed orthodontic therapy, recent bleaching

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Acid etched brackets	Acid etched brackets	Stainless steel bracket base etched with 10% Hydrofluoric acid for 1 minute
Sandblasted brackets	Sandblasted brackets	Stainless steel bracket sandblasted base

Primary Outcome Measures

Name	Time	Method
Bond Failure Rate	18 months after placement of brackets on the teeth	To compare the bond failure rates between acid etched and sandblasted brackets. Done by calculating and comparing the percentages of bracket breakages between the acid etched and sandblasted bracket quadrants.

Trial Locations

Locations (1)

Islamic International Dental College; 🇵🇰 Islamabad, Pakistan