DOI
10.17077/etd.oaya7atd
Document Type
Thesis
Date of Degree
Spring 2013
Degree Name
MS (Master of Science)
Degree In
Orthodontics
First Advisor
Southard, Thomas E
First Committee Member
Brown, Tom
Second Committee Member
Franciscus, Robert
Third Committee Member
Gratton, David
Fourth Committee Member
Marshall, Steven
Abstract
Objective: The purpose of this study was to develop a method of accurately quantifying the wear facet, and relating the wear facet size to the forces applied by the Iowa Tooth Wear Machine.
Methods: Ten un-erupted third molars were used for this study. The teeth were mounted in the Iowa Tooth Wear Machine with opposing proximal surfaces. Samples were run with a 0.250mm stroke length for 645,120 cycles under 5 pounds of weight. An optical scanner was used to digitize the initial and final interproximal wear facets. AnSur© software (Regents, University of Minnesota) was used to process and analyze the interproximal surfaces in terms of area (mm2), volume (mm³), and depth (µm).
Results: All samples were subject to identical magnitude and frequency of forces. The results show that there was considerable variation in volume loss between the samples. Results show similar amounts of volume loss in samples 3, 4, 6, 7, 8, 9, and 10 with 1, 2, and 5 showing a considerably greater amount of wear.
Conclusions: The results suggest that there may be other compounding factors involved with facet formation, and the force magnitude and frequency alone does not determine the volume of enamel loss.
Pages
vi, 50 pages
Bibliography
Includes bibliographical references (pages 47-50).
Copyright
Copyright 2013 Brendon James Swenson
Recommended Citation
Swenson, Brendon James. "Interproximal tooth wear: an in vitro pilot study." MS (Master of Science) thesis, University of Iowa, 2013.
https://doi.org/10.17077/etd.oaya7atd