Accession Number : ADA132477

Title :   A Histologic Comparison of the Canal Wall Planning Ability of Two New Endodontic Files,


Personal Author(s) : Hill,Robert L ; del Rio,Carlos E

PDF Url : ADA132477

Report Date : Jan 1983

Pagination or Media Count : 26

Abstract : Thirty curved, mesial roots of extracted human mandibular first molars were selected to histologically evaluate the planing ability of two new endodontic files. Mesiolingual canals were serially prepared with one of three types of endodontic files. Conventional K-type files were used as control instruments; and recently marketed K-Flex and Dynatrak files were used as experimental instruments. The difference in canal wall planing ability among the three file types was measured by the percentage of predentin and/or dentin removed from the walls of the mesiolingual canals as compared to the walls of the uninstrumented mesiofacial canals. Statistical comparison of the mean percentage scores of canal wall planed at Por=.05 showed no statistically significant difference among the three file types. Statistical comparison of the mean operating times at Por=.05 showed that the Dynatrak file gave instrumentation times that were significantly less than either the K-Flex or the K-type files.

Descriptors :   *Root canal, *Dental equipment, Histology, Test and evaluation, Comparison, Humans, Therapy

Subject Categories : Medicine and Medical Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE