Date of Award
Spring 1990
Document Type
Thesis - Restricted
Degree Name
Master of Science (MS)
Department
Dentistry
Abstract
When endodontic surgery is indicated - - as is happening more frequently -- the clinician must determine the adequacy of the seal of the root canal after root resection. If the seal is judged to be lacking or inadequate, a retrofilling is placed to improve the seal, and thus decrease the potential for microleakage. In the past, extracted teeth have been used for in vitro testing, mainly using dye or radioisotope penetration to assess microleakage. More recently, electrochemical analysis of leakage has been employed. Various materials at different cavity depth preparations have been used in the past, making comparisons between studies difficult. There is no agreement as to what the "ideal " cavity preparation depth is although it seems that most everyone follows the rule that "more is better. " There has been only one study that examined the effect of cavity depth preparation on microleakage. There is a need for more research into this area. This study will explore four materials at two different cavity depth preparations using plastic blocks and electrochemical means of evaluating microleakage. The material and depth will be examined to determine if any significance exists between them.
Recommended Citation
Schweitzer, Jordon L., "Electrochemical Evaluation of Microleakage of Four Retrofilling Materials" (1990). Master's Theses (1922-2009) Access restricted to Marquette Campus. 5383.
https://epublications.marquette.edu/theses/5383