Document Detail

Microleakage of Er:YAG laser and dental bur prepared cavities in primary teeth restored with different adhesive restorative materials.
MedLine Citation:
PMID:  23135785     Owner:  NLM     Status:  Publisher    
The purpose of this study was to evaluate and compare the effect of erbium:yttrium-aluminum-garnet (Er:YAG) laser irradiation and conventional dental bur cavity preparation on in vitro microleakage of class V cavities restored with different adhesive restorative materials and two types of self-etching adhesives in primary teeth. Standard class V cavities were prepared on 80 extracted primary, and the teeth were randomly divided into eight subgroups prepared either by dental bur or Er:YAG laser irradiation and then restored with self-cured glass ionomer (GI), resin-modified glass ionomer (RMGI), resin composite and Clearfil SE Bond (two-step self-etching adhesive), and resin composite and Clearfil S3 Bond (one-step self-etching adhesive). Restorations were finished and stored in distilled water at 37 °C for 24 h and then subjected to thermocycling. All the teeth were sealed with nail varnish, placed in a silver nitrate solution, and then vertically cut in a buccolingually direction. Subsequently, the specimens were evaluated for gingival and occlusal microleakage using a stereomicroscope. Data were analyzed using Kruskal-Wallis test followed by Mann-Whitney test. Wilcoxon test was used for comparing occlusal microleakage with gingival microleakage at p < 0.05. A higher degree of occlusal and gingival microleakage values for the teeth restored with GI or RMGI was obtained by both preparation methods compared with that of resin composites and the two self-etching primers. Er:YAG laser irradiation resulted in a significantly higher degree of microleakage only at the gingival margins for teeth restored with GI or RMGI, or composite and Clearfil S3 Bond compared with the bur preparation. The Er:YAG laser-prepared teeth restored with composite and Clearfil SE Bond demonstrated a better marginal seal on occlusal and gingival margins compared with that of bur-prepared cavities. The degree of microleakage in class V cavities was affected by the type of adhesive restorative materials, type of self-etching adhesive, cavity margin location, and tooth preparation method either by Er:YAG laser or dental bur.
Ali Baghalian; Yahya B Nakhjavani; Tabassom Hooshmand; Pouria Motahhary; Hoda Bahramian
Related Documents :
21814615 - The relationship between initial implant stability quotient values and bone-to-implant ...
2279555 - External quality assessment of automated blood leukocyte differential counts and other ...
22244645 - Dentin moisture conditions affect the adhesion of root canal sealers.
20624195 - The use of a profilometer for both quantitative and qualitative measurements of toothpa...
2195895 - The use of crossed polarized filters in the measurement of the relative afferent pupill...
7629325 - Tunnel restorations: a long-term pilot study over a minimum of five years.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-8
Journal Detail:
Title:  Lasers in medical science     Volume:  -     ISSN:  1435-604X     ISO Abbreviation:  Lasers Med Sci     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8611515     Medline TA:  Lasers Med Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Pediatric Dentistry, Dental School, Qazvin University of Medical Sciences, Qazvin, Iran.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

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

Previous Document:  Enhanced spatio-temporal alignment of plantar pressure image sequences using B-splines.
Next Document:  Effect of a DPSS laser on the shear bond strength of ceramic brackets with different base designs.