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In vitro evaluation of bacterial leakage resistance of an ultrasonically placed mineral trioxide aggregate orthograde apical plug in teeth with wide open apexes: a preliminary study

Authors
 Un-Sung Kim  ;  Su-Jung Shin  ;  Seok Woo Chang  ;  Hyun-Mi Yoo  ;  Tae-Seok Oh  ;  Dong Sung Park 
Citation
 ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY, Vol.107(4) : 52-56, 2009 
Journal Title
 ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY 
ISSN
 1079-2104 
Issue Date
2009
MeSH
Aluminum Compounds/pharmacology ; Calcium Compounds/pharmacology ; Dental Leakage/prevention & control* ; Drug Combinations ; Humans ; Incisor ; Oxides/pharmacology ; Root Canal Filling Materials*/pharmacology ; Root Canal Obturation/methods* ; Silicates/pharmacology ; Tooth Apex/drug effects* ; Ultrasonic Therapy*
Abstract
OBJECTIVE: The purpose of this study was to compare the sealing ability of an ultrasonically placed orthograde mineral trioxide aggregate (MTA) apical plug in open apices. STUDY DESIGN: Thirty extracted human maxillary incisors were used. Experimental teeth were instrumented up to #100 file at the apex, and the 5 mm MTA apical barrier was placed with (group A; n = 11) or without (group B; n = 11) ultrasonic activation. Eight teeth served as control group. Bacterial leakage was assessed daily for 180 days using a double-chamber bacterial leakage model with Enterococcus faecalis. The results were analyzed with Fisher exact test. RESULTS: After 60 days, the ratio of leaked samples showed significant difference between groups A (2 out of 10) and B (8 out of 11) (P < .05). The mean time elapsed before leakage showed significant difference between groups A (158 days) and B (23 days) (P < .05). CONCLUSIONS: Ultrasonically placed orthograde MTA apical plugs were effective at delaying bacterial leakage
Full Text
http://www.sciencedirect.com/science/article/pii/S1079210408009463
DOI
10.1016/j.tripleo.2008.12.049
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Conservative Dentistry (보존과학교실) > 1. Journal Papers
Yonsei Authors
Shin, Su Jung(신수정) ORCID logo https://orcid.org/0000-0001-5795-3919
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/105022
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