Orthodontics and Orthodontology Commons^™

An In-Vitro Study Evaluating The Fracture Resistance And Insertion Torque Of Self-Drilling Mini-Implants Upon Insertion Into Synthetic High Density Mandibular Bone., Angie L. Smith

Electronic Thesis and Dissertation Repository

Introduction: Self-drilling mini-implants are commonly used in orthodontics, but there is little information regarding their fracture resistance in areas of high density bone without pre-drilling.

Purpose: To determine the peak fracture torques of six commonly used self-drilling mini-implants, and to examine how each performs in extreme conditions without pre-drilling.

Materials and Methods: Fifteen mini-implants from six different manufacturers were drilled into acrylic blocks using a custom-made insertion device incorporating a 6-DOF load cell for torque measurements. Peak fracture torques were recorded and compared for each of the six manufacturers. Additionally, ten mini-implants from each manufacturer were inserted into high density ...

Ethnic Identity And The Perception Of Facial Profile Aesthetics: A Preliminary Study, Paul Michael Glasser

Electronic Thesis and Dissertation Repository

In a multicultural society, the orthodontist is often faced with the challenge of interpreting an individual’s aesthetic preferences, which depending on the individual might differ from Eurocentric standards. Psychological researchers have recognized that ethnicity is dynamic, and better defined as a perception of self, influenced by social interaction and cultural involvement. Ethnic identity was investigated using three broad ethnic groups (Caucasian-American, African-American and Asian-American) with an established Multicultural Ethnic Identity Measure (Revised [MEIM-R]). Profiles for males and females of each group were constructed using published soft tissue data. Each profile was modified from subnasale to soft tissue B-point by ...