Medicine and Health Sciences Commons^™

Binding Of Salivary Proteins To Orthodontic Brackets, Maria Pia Canales

Electronic Thesis and Dissertation Repository

Objectives: The aim of this study was to investigate the effect of different orthodontic materials on the formation of the protein pellicle on the bracket surface.

Materials and Methods: We used X-ray Photoelectron Spectroscopy (XPS) to analyze the atomic composition of orthodontic metallic and ceramic brackets. Following XPS, the brackets were immersed in human whole saliva supernatant for 2-hour incubation at 37°C. Hydroxyapatite (HA) discs were used as control. Acquired pellicle was harvested with sonication for each group, and liquid chromatography electrospray ionisation mass spectrometry was used for protein identification.

Results: Differences reported by XPS and mass spectrometry were noted …

Indirect Bonding Of Orthodontic Brackets: A Comparison Of Positional Accuracy Between Software Vs. Stone Model Driven Techniques, Francesca Scilla Smith

Student Theses, Dissertations and Capstones

Background: Many orthodontic clinicians consider indirect bonding of orthodontic brackets as a method of achieving greater accuracy and effectiveness in orthodontic treatment. Currently, few features of our world have escaped the influence of technology. The indirect system of orthodontic bonding offers an example of technology’s power through a computer-driven system that enables customized bracket placement that optimizes esthetics, accuracy, precision and efficiency. The purpose of this study was to compare the positional accuracy and reliability between traditional and computer-generated indirect bonding techniques. Methods: A total of 210 brackets (STEP metal brackets with slot size .022x.028) were placed using a four …