Abstract

PURPOSE: To evaluate sealant microleakage using four different application techniques.

METHODS: The four application techniques evaluated were acid etch only, Adper L-Pop bonding, Optibond bonding, and Enamel Loc One-Step Sealant. Sixty-four extracted third molar teeth were assigned on one of four application techniques (n=16) and Clinpro sealants applied according to the manufacturer's instructions. The teeth were thermocycled for 500 cycles, dyed, and embedded in resin. The samples were then sectioned and evaluated for microleakage on the buccal and lingual surfaces. Statistical methods employed to analyze the data were the Kruskal-Willis rank test and the Mann-Whitney U test.

RESULTS: No significant microleakage was found between teeth in the Optibond and acid etching groups. There was no significance in microleakage between samples in the Optibond and L-Pop bonding groups as well. L-Pop bonding exhibited significantly more microleakage than acid etch alone. Teeth in the new Enamel Loc Sealant group displayed significantly more microleakage than teeth in both the acid etch and Optibond groups.

CONCLUSIONS: Based on the results of this study, teeth in the Enamel Loc Sealant system group displayed significantly more microleakage than teeth in the etch and Optibond bonding technique groups. Teeth in the L-Pop experimental group displayed more microleakage than the etch group. There was no statistical difference in microleakage between the Optibond teeth in comparison to L-Pop and etch applied teeth. There was also no significance in microleakage between the L-Pop and Enamel Loc groups.

LLU Discipline

Pediatric Dentistry

Department

Dentistry

School

Graduate Studies

First Advisor

J. Todd Milledge

Second Advisor

Jay Kim

Third Advisor

Huan Lu

Fourth Advisor

Bonnie A. Nelson

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

2008

Date (Title Page)

6-2008

Language

English

Library of Congress/MESH Subject Headings

Pediatric Dentistry -- dissertations; Pit and Fissure Sealants -- analysis; Dental Enamel -- analysis; Dental Bonding; Dental Leakage; Materials Testing; Acid Etching, Dental -- methods; Dental Caries -- prevention & control

Type

Thesis

Page Count

viii; 22

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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