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
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 Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
340
The brackets will be bonded to the teeth with composite on the same patient in a split mouth design and observed for bracket debonding for 18 months
The brackets will be bonded to the teeth with composite on the same patient in a split mouth design and observed for bracket debonding for 18 months
Islamic International Dental College
Islamabad, Pakistan
Bond Failure Rate
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.
Time frame: 18 months after placement of brackets on the teeth
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