Document Type


Date of Degree

Spring 2011

Degree Name

MS (Master of Science)

Degree In


First Advisor

Moreno, Lina M

First Committee Member

Dawson, Deborah V

Second Committee Member

Weinberg, Seth M

Third Committee Member

Southard, Thomas E

Fourth Committee Member

Lidral, Andrew


The purpose of this work is to study phenotypic craniofacial traits of unaffected parents of individuals with nonsyndromic cleft lip with or without palate (NSCL/P). In order to evaluate these craniofacial traits, three dimensional photographs were obtained and landmarked to compare the sample of unaffected parents with a control sample. The sample was comprised of 40 unaffected fathers, 25 control males, 84 unaffected mothers, and 34 control females. Twenty-four three-dimensional landmarks were exported for analysis for each subject. For the purposes of this study, nine euclidean distances were subjected to a discriminant function analysis to evaluate their ability to discriminate between an unaffected parent and a control. In both the male and female analysis, certain craniofacial measurements correctly and significantly discriminated between unaffected parents and controls. It appears that certain facial traits are subclinical markers for enhanced genetic susceptibility to nonsyndromic cleft lip with or without palate.


Cleft Lip, Soft Tissue Captures, Stereophotogrammetry, Subphenotype, Three Dimensional, Unaffected


viii, 74 pages


Includes bibliographical references (pages 70-74).


Copyright 2011 David Defay