Date of Award

Fall 2023

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Dental Hygiene

Program/Concentration

Dental Hygiene

Committee Director

Brenda T. Bradshaw

Committee Member

Ann M. Bruhn

Committee Member

Walter L. Melvin

Committee Member

Sinjini Sikdar

Abstract

Problem: Lip prints are unique and have potential for use as a human identifier. The purpose of this study was to observe possible cheiloscopy differences of individuals with and without parafunctional oral habits. Additionally, inter-rater reliability (IRR) of lip print examiners was observed. Methods: This IRB approved blinded cross-sectional observational study collected lip prints from sixty-six individuals using lipstick and adhesive tape to transfer lip prints to white bond paper for viewing purposes. Each set of included lip prints was divided into quadrants and dichotomized as those with or without an oral parafunctional habit. Each quadrant sample was manually analyzed and classified according to the gold standard Suzuki and Tsuchihashi system. Two groups of examiners were provided with 50 of the lip print samples and asked to classify the middle portion of the lower lip. One group of examiners received a 15-minute training and practice session while the other did not. Results: A total of 252 dichotomized lip print quadrants (with habits n=76, 30.2%, and without habits n=176, 69.8%) were analyzed. Type II patterns were the most common for examined quadrant samples; however, no statistically significant differences (Pearson’s chi-squared test, p=0.366) were observed between pattern classifications of samples with and without parafunctional oral habits. For the IRR test, a significant difference was observed between the two groups (p

Rights

In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

DOI

10.25777/rrkv-ph22

ISBN

9798381446777

ORCID

0009-0001-5083-9889

Download

Share

COinS