Abstract

Background: Excessive wear for the occlusal surfaces of teeth results in decreased masticatory efficiency, poor esthetics and leads to reduced the occlusal vertical dimension which could lead to the development of temporomandibular disorders, consequently, further compromise function. Very few studies have been performed on the wear resistance of zirconia against artificial denture teeth and human enamel. Aim: The purpose of this study was to investigate the influence of polished zirconia (PZ) and glazed zirconia (GZ) on the 2-body wear resistance (vertical substance loss) of seven commercially available denture teeth made of different resins. Material and Method: Eight groups (n=10) of denture teeth and one control group (natural teeth) were selected. Two sets of each group were prepared along with two groups of natural molars as control groups (n=10). Two sets of 90 antagonist surfaces made from PZ and GZ. Each group of teeth and its respective zirconia antagonists were mounted on the Alabama wear device and loaded for 400,000 cycles. The vertical substance loss was measured by using a laser scanner (3Shape A/S Copenhagen K Denmark) and 3D software (Geomagic Software).

LLU Discipline

Prosthodontics

Department

Prosthodontics

School

School of Dentistry

First Advisor

Kattadiyil, Mathew T.

Second Advisor

Goodacre, Charles J.

Third Advisor

Baba, Nadim N.

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

2018

Date (Title Page)

8-2018

Language

English

Library of Congress/MESH Subject Headings

Dental Materials; Dental Restoration; Tooth Abrasion

Subject - Local

Resin; Zirconia

Type

Thesis

Page Count

43

Digital Format

PDF

Digital Publisher

Loma Linda University Libraries

Usage Rights

This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.

Collection

Loma Linda University Electronic Theses and Dissertations

Collection Website

http://scholarsrepository.llu.edu/etd/

Repository

Loma Linda University. Del E. Webb Memorial Library. University Archives

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