Date on Master's Thesis/Doctoral Dissertation


Document Type

Master's Thesis

Degree Name


Department (Legacy)

Department of Orthodontics and Pediatric Dentistry

Committee Chair

Johnson, Baxter Edwin


Obesity in children; Obesity in adolescence; Orthodontics


The purpose of this study was to determine if obesity impacts craniofacial dimensions in adolescent and teenage subjects. Twenty-one cephalometric measurements were selected as a basis for comparison between normal weight, overweight and obese children. The subjects were weighed, measured, and placed into one of the three groups based on their Body Mass Index (BMI). Lateral cephalometric radiographs were taken, traced and digitized on all patients. The various measurements were analyzed to determine if there were any statistically significant differences between any of the measurements when compared on the basis of BMI. The following seven measurements showed a statistically significant difference when evaluated on the basis of BMI: SNA, maxillary unit length, SNB, corpus length, mandibular unit length, soft tissue convexity and soft tissue facial height ratio. Comparisons were also made on the basis of gender and age. Three of the measurements for gender showed a statistically significant difference: S-N, maxillary unit length and mandibular unit length. Similarly, three of the measurements for age showed a statistically significant difference: maxillary unit length, corpus length and mandibular unit length.