Introduction: Ideal arrangement of artificial posterior teeth is an important step for success in complete denture. Pound postulated that the lingual surfaces of mandibular posterior denture teeth should occupy an area bounded by two lines originating from the mesial surface of the mandibular canine and extending posteriorly to the lingual and buccal aspect of the retromolar pad.

Aim and objectives: The aim and objective of this study was to evaluate mediolateral positioning of mandibular posterior teeth in relation to pound theory.

Methodology: Fifty subjects were selected and mandibular impressions were taken and casts were poured. Pound triangles were marked on the cast. Photographs of the casts were taken and transferred to the computer for the further analysis by using Digimizer image analysis software. The Pound triangle was drawn & distance of lingual surfaces of each posterior tooth from the internal line of Pound triangle was measured. Points which were placed within the pound triangle presented as (0) and medial to the internal line of Pound triangle was (>0) and data was subjected to statistical analysis.

Results: In left quadrant about 97.2% first premolar, 94.5% of second premolar, 76.3% of first molar and 89% of second molar and in right quadrant about 96.3% first premolar and second premolar, 75.4% first molar and 89% second molar were located inside pound triangle.