Vol. 10, Issue 3, Part B (2024)

Aim & Objectives: This cephalometric study aims to analyze correlation between interlabial gap, lip morphology and lip strain in patients with proclined and normally inclined incisors.

Materials and Methods: The retrospective study groups consisted of pretreatment records of sixty untreated individuals with the age group between 14 to 45 years. The samples were divided into two groups (group 1 and group 2) based on the upper incisor to NA angle. Each group was further divided into two subgroups (1a, 1b and 2a, 2b) based on interlabial gap. After geometric measurements; the data was compiled, analyzed and compared among each sub groups.

Results: The present study showed statistical significance between basic upper lip thickness, upper lip thickness and lip length in subgroup 1a. Subgroup 1b and subgroup 2a showed statistical significance between basic upper lip thickness and lip thickness and no correlation with lip length and lip strain. Subgroup 2b showed statistical significance between basic upper lip thickness, lip thickness and lip length and no correlation with lip strain.

Conclusion: This retrospective study concludes that lip strain, lip morphology and interlabial gap are not correlated with each other. The above soft tissue parameters depend on the maxillary incisors' position.