Document Detail

Influence of different conditioning methods on the shear bond strength of novel light-curing nano-ionomer restorative to enamel and dentin.
MedLine Citation:
PMID:  19688586     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to investigate shear bond strength (SBS) between a light-curing nano-ionomer restorative and enamel or dentin after acid etching, after erbium:yttrium-aluminum-garnet (Er:YAG) laser etching, or after combined treatment. Forty third molars were selected, the crowns were sectioned, and 80 tooth slabs were obtained. The specimens were assigned to two groups, which were divided into four subgroups(n = 10). Group 1 [enamel (e)], treated with 37% phosphoric acid (A) + Ketac nano-primer (K); group 2 [dentin (d)], (A) + (K); group 3(e), Er:YAG laser etching (L) + (A) + (K); group 4(d), (L) + (A) + (K); group 5(e), (L) + (K); group 6(d), (L) + (K); group 7(e), (K); group 8(d), (K). The SBS of the specimens was measured with a universal test machine (1 mm/min). Data were analyzed by independent samples t-test, one-way analysis of variance (ANOVA) and a post-hoc Duncan test (p < 0.05). No difference was determined between groups 3 and 5 (p > 0.05). Group 7 exhibited higher SBS values than those of groups 3 and 5 (p < 0.05). Group 1 showed higher SBSs than those of groups 3, 5 and 7 (p < 0.05). There was no significant difference between groups 4 and 6 (p > 0.05). No difference was observed between groups 2 and 4 (p > 0.05). However, group 2 presented higher SBSs than did group 6 (p < 0.05). Group 8 exhibited the highest SBS values when compared with groups 2, 4 and 6 (p < 0.05). Er:YAG laser adversely affected the adhesion of the light-curing nano-ionomer restorative to both enamel and dentin.
Yonca Korkmaz; Emre Ozel; Nuray Attar; Ceren Ozge Bicer
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Publication Detail:
Type:  Evaluation Studies; In Vitro; Journal Article     Date:  2009-08-18
Journal Detail:
Title:  Lasers in medical science     Volume:  25     ISSN:  1435-604X     ISO Abbreviation:  Lasers Med Sci     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-09-08     Completed Date:  2011-01-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8611515     Medline TA:  Lasers Med Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  861-6     Citation Subset:  IM    
Department of Conservative Dentistry, School of Dentistry, Baskent University, 11. Sok. No. 26, Bahcelievler, Ankara, Turkey.
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MeSH Terms
Acid Etching, Dental
Dental Bonding / methods*
Dental Enamel / physiology,  radiation effects
Dental Etching / methods
Dental Restoration, Permanent
Dental Stress Analysis
Dentin / physiology,  radiation effects
Glass Ionomer Cements
Laser Therapy, Low-Level
Lasers, Solid-State
Light-Curing of Dental Adhesives / methods*
Shear Strength
Reg. No./Substance:
0/Glass Ionomer Cements

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

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