Abstract

Root perforations during root canal therapy have a significant negative impact on long-term prognosis of teeth. Proper treatment is critical in managing these accidental procedures. Laboratory and animal studies have demonstrated that Mineral Trioxide Aggregate (MTA) is biocompatible, provides an excellent seal against penetrating bacteria, and promotes hard tissue healing. The purpose of this study was to determine the long term treatment outcome of root perforations repaired with MTA.

Ninety-nine records from the Graduate Endodontic Clinic at Loma Linda University School of Dentistry from 1996 to 2001 were reviewed. Clinical and radiographic evaluations were completed. Three independent examiners evaluated digitized radiographs for the presence or absence of pathological changes adjacent to the MTA restored site. Thirty one patients (31.3%) came back for recall visit. The follow-up radiographs ranged from 3 years and 1 month to 8 years and 8 months. There were 9 furcal, 9 lateral, 7 strip, and 6 apical perforations. Twenty three out of 31 cases (74.2%) were deemed healed. Three out of 31 cases (9.7%) were seen as healing. And five out of 31 cases (16.1%) were deemed unhealed. Clinical examinations of these follow-up patients showed no symptoms, swelling, or sinus tracts traceable to perforation repair sites. The survival rate of teeth repaired with MTA was 100%. Based on the outcomes of this study, it appears MTA provides a good, long term treatment outcome for root perforation repairs in majority of cases.

Department

Dentistry

School

Graduate School

First Advisor

Mahmoud Torabinejad

Second Advisor

Robert Kiger

Third Advisor

Shahrokh Shabahang

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

2005

Date (Title Page)

9-2005

Language

English

Library of Congress/MESH Subject Headings

Root Canal Therapy; Dentin-Bonding Agents; Mineral Trioxide Aggregate

Type

Thesis

Page Count

ix; 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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