TY - JOUR AU - ESLAMI, B. AB - Summary. Objectives. This study evaluated the effect of pumice prophylaxis on the level of microleakage around and between the sealant and enamel. Materials and methods. A total of 32 freshly extracted sound upper first premolars, assigned as suitable for sealant application, were chosen and divided randomly into two groups: (1) a test group, without prophylaxis; and (2) a control group, with prophylaxis. Sealant was applied to all teeth using the same conventional technique, with prophylaxis being omitted in the test group. The sealed teeth were thermocycled (120 × 30 s, 5 and 55 °C cycles) and then immersed in 2% Basic Fuchsin solution for 72 h. Each tooth was sectioned and examined for dye penetration under a stereomicroscope (× 60 magnification). Results. No dye penetration was seen in 19 (29·6%) of the teeth in the test group and 36 (56·2%) of the teeth in the control group. Dye had penetrated to the base of the fissure in 31 (48·4%) of the teeth in the test group and 23 (35·9%) of the teeth in the control group. Using a chi‐square test for trend, the frequency of microleakage was significantly higher in the test group compared to the controls (P < 0·016). Conclusion. Prophylaxis has a role in improving sealant retention. Removing this step may cause an increase in microleakage. TI - Microleakage assessment of pit and fissure sealant with and without the use of pumice prophylaxis JF - International Journal of Paediatric Dentistry DO - 10.1111/j.1365-263X.2004.00565.x DA - 2004-07-01 UR - https://www.deepdyve.com/lp/wiley/microleakage-assessment-of-pit-and-fissure-sealant-with-and-without-VdfSrO5MiT SP - 272 VL - 14 IS - 4 DP - DeepDyve ER -