Correlation of Growth Pattern and Palatal Rugae Pattern in South Indian Population

Abstract

Aim: To determine the correlation between palatal rugae (PR) pattern and subjects with vertical, average, and horizontal growth pattern and to determine gender variation if any. Material and Methods: One hundred and twenty study models were divided into horizontal, vertical, and average growth patterns with 40 (20 males and 20 females) samples in each group. The pattern of PR was assessed in each group using a template. Result: Type B (wavy type) PR occurs more often in horizontal and average growth pattern (80% and 72.5% respectively), whereas its occurrence in vertical growth pattern subject is the least among other growth patterns, that is, 42.5% of the total subjects. Type E (curved type) PR has appeared highest in 27.5% of average growth pattern patient followed by 12.5% of vertical growth pattern subjects. The occurrence of type E PR is least in horizontal growth pattern which is just 5% of the total subjects. Conclusion: Curved-type PR was more prevalent in vertical and average growth patterns. Diverging PR pattern was mainly seen in vertical growth pattern. PR also shows sexual dimorphism. The association is clinically significant as it will lead to determination of facial vertical growth pattern at early age; thus, it serves as a diagnostic adjunct for different malocclusions very early in life and aids in preventive or interceptive orthodontic measures to alleviate forthcoming growth pattern.