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TIPS ON CLINICAL ORTHODONTICS
Adhesive Enamel bond failure due to the following reason
1. Contamination of etched enamel by
saliva, moisture
2. Insufficient rinsing of etchant
3. Over etching and removal of excess
enamel
TIPS ON CLINICAL ORTHODONTICS
Adhesive-Bracket bond failure due to the following reasons
1. Excess force exerted on bracket form
occlusion
2. Movement of bracket during initial setting
of adhesive
3. Contaminated bracket mesh
4. Inadequate curing
5. Adhesive not buttressed into based firmly