Methodology: A study was carried on 70 patients of age group 20-60 years who required maxillary premolar and molar tooth extraction in a randomized controlled manner. Single buccal infiltration of 1.8ml of lignocaine solution was given randomly to 30 patients in maxillary premolar tooth group A and 40 patients in maxillary molar in group B. Objective signs were checked. Postoperatively VAS score and FPS score was noted.

Results: In group A (maxillary premolar) extraction was done symptoms free in 25 patients. Additional injection was required in 5 case. In group B (maxillary molar), in 40 patients extraction was done out of which in 22 patients extraction was symptoms free. Additional injection was required in 18 cases. The VAS score and FPS score values for both the groups showed a statistically significant difference (p value <0.05) between the two groups.

Interpretation & Conclusion: The single buccal infiltration of 1.8ml lignocaine with a latency period of 10 minutes can be used for extracting permanent maxillary premolar whereas maxillary molar teeth require an additional palatal injection.