Joanna Dsouza, Zahid Iqbal.
A comparison of retention between filled and unfilled resin in newly erupted permanent molars used a pit and fissure sealants in vivo study: a randomized clinical trial.
Isra Med J Jan ;12(3):141-4.

Objective: To compare the retention between filled and unfilled resin in newly erupted permanent molars by using a pit and fissure sealants Study Design: A Randomized Clinical Trial Place and Duration: At Department of Operative Dentistry Isra Dental College from 1st January 2014 to 31st December 2015. Methodology: Total Hundred first molar teeth were selected in 25 children i.e. 100 teeth divided into 50 equal right and left side using split mouth design. Right side having both maxillary and mandibular teeth sealed with filled resins and left side teeth sealed with unfilled resins. Retention of the sealants was checked at an interval of 3, 6, 9 and 12 months using the CCC evaluation system (color, coverage and caries) and in this study coverage criteria were used for follow-ups. Results: The results showed that filled resins were completely retained in 58%, 66%, 38.7%, 37.9%, partially retained in 8%,27.2%,54.8%,48.3% and lost completely in 34%, 45.5%, 6.5%, 13.8% at 3rd,6th,9th and 12th month follow up respectively. Similarly, unfilled resins were completely retained in 62%, 45.5%,38.1%,42.1%,partially retained in 4%, 18.2%, 52.4%, 52.6% and lost completely in 34%,36.3%,9.5%,5.3% at 3rd,6th,9th and 12th month follow up respectively. The percentage of sealant retained or partially retained in case of filled resins were more than retained or partially retained of the unfilled resins. The difference was not found to be significant (p>0.05). Conclusion: There was no statistically significant difference in the retention rates between resin-based filled and unfilled pit and fissure sealants.

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