Materials & Methods: A total of 50 primary molars were enrolled. The age of patients was 6 to 10 years. 18 were girls and 10 were boys. Radiographic examination was done. The diagnosis was informed by the presence of different degrees of infraocclusion and the appearance of adjacent bone (The loss of periodontal space). The ankylosed tooth was compared with the corresponding molar in the opposite quadrant. Data was collected and result was analysed using chi- squared test and SPSS software.

Results: A total of 50 primary molars were enrolled. According to location, ankylosed teeth were more in the lower jaw as 90% as compared to the upper jaw i.e 10%. The third quadrant has the more number of ankylosed tooth i.e 56% followed by fourth quadrant i.e 34%.

Conclusion: The prevalence of dental ankylosis was higher in the third quadrant, especially in the first primary molars.