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Durability of the anti-erosive effect of surfaces sealants under erosive abrasive conditions.
MedLine Citation:
PMID:  23294118     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract Objective. To test the durability of sealants applied for prevention of erosive dentine mineral loss under erosive/abrasive conditions. Methods. Forty-eight bovine dentine samples doped with (32)P were randomly allocated to four groups (1-4). All samples performed a de- and remineralizations pre-cycling (6 × 1 min erosion in HCl: pH 3.0, mean time and overnight immersion in artificial saliva) for 1 day. Sealing was done as follows; (1) unsealed, (2) Seal & Protect, (3) K-0184 (experimental sealer) and (4) OptiBond FL. After sealing, samples were immersed in HCl for 3 h (baseline measurement). Then, the following erosive/abrasive and remineralisations cycling was performed for 8 days: 3 h/day erosion with HCl, 600 brushing strokes/day and storage in artificial saliva for the rest of the day. Sealer permeability was evaluated by assignation of (32)P in the acid used for the erosive attacks. Results. At baseline, the significantly highest dentine loss was observed for the unsealed control group, while the mineral loss was not statistically significantly different between the sealed groups 2 and 3. At all days of the erosive/abrasive and remineralizations cycling and cumulatively the significantly highest mineral loss was observed for group 1, while the significantly lowest mineral loss was observed for the samples sealed with Seal & Protect (group 2) and K-0184 (group 3). In all groups, no significant increase in the (32)P release was observed. Conclusion. Surface sealants are able to reduce the erosive dentine mineral loss and maintain this erosion-preventing efficacy over the whole duration (simulating 8 month in-vivo) of the erosive/abrasive cycling.
Authors:
Florian J Wegehaupt; Tobias T Tauböck; Thomas Attin
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-7
Journal Detail:
Title:  Acta odontologica Scandinavica     Volume:  -     ISSN:  1502-3850     ISO Abbreviation:  Acta Odontol. Scand.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370344     Medline TA:  Acta Odontol Scand     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department for Preventive Dentistry, Periodontology and Cariology University of Zurich , Plattenstrasse 11, CH-8032 Zürich , Switzerland.
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