Background: The present study evaluated the retention of pit and fissure sealants using different techniques. Materials & Methods: We made 2 groups of 30 teeth each. In group I, mandibular permanent first molar of both sides were treated by acid etching alone and in group II, pretreated by with air abrasion was done followed by acid etching. All patients were clinically evaluated after 3 and 6 months of sealant placement and assessed as completely retained, partially retained and missing. Results: Out of 60 patients, males were 35 and females were 25. After 3 months, completely retained sealants was observed in 20 in group I and 16 in group II, partially in 8 in group I and 10 in group II and missing in 2 in group I and 4 in group II. The difference was non- significant (P> 0.05). After 6 months, sealants were completely present in 16 in group I and 13 in group II, partially in 10 in group I and 11 in group II and missing in 4 in group I and 6 in group II. The difference was non- significant (P> 0.05). Conclusion: Pit and fissure sealants are helpful in preventing dental caries, however, no difference in retention of pit and fissure sealants in either of technique was observed. Key words: Acid etching, Pit and fissure sealants