Document Detail

Resin-based versus gutta-percha-based root canal obturation: influence on bacterial leakage in an in vitro model system.
MedLine Citation:
PMID:  19451008     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: This study evaluated the ability of a resin-based system (Resilon/Epiphany) and gutta-percha/sealer with warm vertical or cold lateral compaction to prevent coronal leakage.
STUDY DESIGN: A polymicrobial suspension in a dual-chamber model was used. Seventy extracted maxillary incisors were prepared, divided into 4 groups, and obturated: Group 1, lateral compaction/gutta-percha/AH Plus; Group 2, lateral compaction/Resilon; Group 3, continuous wave compaction/gutta-percha/AH Plus; Group 4, continuous wave compaction/Resilon. Upper chambers held a mixed suspension of endodontic pathogens. Apices were suspended in the lower chambers. Leakage was determined daily for 40 days and evaluated for turbidity. Data were analyzed using survival analysis; log-rank test was used to analyze differences in time to leakage.
RESULTS: Median time to leakage: 16, 15, 11, and 25 days for Groups 1 to 4 respectively (P = .93, log-rank test).
CONCLUSION: No difference in time to leakage among the 4 treatment groups existed.
Anne E Williamson; Kristy L Marker; David R Drake; Deborah V Dawson; Richard E Walton
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-05-17
Journal Detail:
Title:  Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics     Volume:  108     ISSN:  1528-395X     ISO Abbreviation:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Publication Date:  2009 Aug 
Date Detail:
Created Date:  2009-07-20     Completed Date:  2009-11-17     Revised Date:  2012-03-05    
Medline Journal Info:
Nlm Unique ID:  9508562     Medline TA:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  292-6     Citation Subset:  D; IM    
Department of Endodontics, University of Iowa College of Dentistry, Iowa City, IA 52241, USA.
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MeSH Terms
Dental Leakage / microbiology,  prevention & control*
Dental Pulp Cavity / microbiology
Dental Restoration Failure
Epoxy Resins / chemistry
Gutta-Percha / chemistry
Longitudinal Studies
Root Canal Filling Materials / chemistry*
Root Canal Obturation / methods*
Reg. No./Substance:
0/Epoxy Resins; 0/Root Canal Filling Materials; 0/expoy resin-based root canal sealer; 0/resilon sealer; 9000-32-2/Gutta-Percha

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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