In this split mouth study design, 34 orthodontic patients coming for fixed appliance treatment will be bonded with standard light-cure composite bonding material and intervention of Resin Modified Glass Ionomer Cement (RMGIC). Contralateral quadrants will be allocated randomly for either RMGIC or visible light-cure composite bonding in both upper and lower jaw. Quadrant 1: Randomly selected, contralateral upper and lower quadrants from central incisor to second premolar will be bonded with RMGIC bonding system. Quadrant 2: Randomly selected, contralateral quadrants from central incisor to second premolar will be bonded with visible light-cure composite bonding material. Allocation of diagonally opposite quadrants by either bonding system will be assigned randomly. Quadrants to be bonded with Resin-modified glass ionomer cement and light-cure composite bonding material will be switched from patient to patient to ensure randomization. This study is single blinded. The study investigators will not be blinded while the patient will be kept blinded. On the first visit, a specially designed consent form will be signed by the participant. Patient interaction for the purpose of study will only be for 1 hour duration while bonding of brackets. After six months amount and location of bond breakages will be evaluated from orthodontic record files. This study will help us evaluate bond strength of RMGIC as compared to light cure composite. RMGIC can also be considered as the choice of material for bonding in high risk caries patients.
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Bracket bond failure
Timeframe: Three months