Micro-abrasive Blasting vs Acid Etching of Orthodontic Bracket Bases

Riphah International University

Status: Completed

Conditions: Orthodontic Appliances

Treatments: Device: Acid etched brackets; Device: Sandblasted brackets

Study type: Interventional

Funder types: Other

Identifiers

NCT04456114

IIDC/IRB/06/06/2020

Details and patient eligibility

About

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

Full description

The aims of this randomized control trial are:

To describe a method to chemically etch the bases of stainless steel orthodontic brackets. To observe the changes in the micro-structure of the brackets with sandblasted bases and acid-etched bases under an electron microscope. 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

Enrollment: 340 patients

Sex: All

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Patients about to undergo fixed orthodontic therapy

Exclusion criteria

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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340 participants in 2 patient groups

Acid etched brackets

Experimental group

Description:

Stainless steel bracket base etched with 10% Hydrofluoric acid for 1 minute

Treatment:

Device: Acid etched brackets

Sandblasted brackets

Active Comparator group

Description:

Stainless steel bracket sandblasted base

Treatment:

Device: Sandblasted brackets