Temperature Rise during Primer, Adhesive, and Composite Resin Photopolymerization of a Low-Shrinkage Composite Resin under Caries-Like Dentin Lesions
Joint Authors
Mousavinasab, Sayed-Mostafa
Khoroushi, Maryam
Moharreri, Mohammadreza
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-24
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Objective.
This study evaluated temperature rise of low-shrinkage (LS) self-etch primer (P), LS self-etch adhesive (A), and P90 silorane-based composite resin systems, photopolymerized under normal and artificially demineralized dentin.
Methods.
Forty 1.5 mm-thick dentin discs were prepared from sound human molars, half of which were demineralized.
Temperature rise was measured during photopolymerization using a K-type thermocouple under the discs: 10 s and 40 s irradiation of the discs (controls/groups 1 and 2); 10 s irradiation of primer (P), 10 s irradiation of adhesive (A), 40 s irradiation of P90 without P and A, and 40 s irradiation of P90 with P and A (groups 3 to 6, resp.).
The samples were photopolymerized using an LED unit under 550 mW/cm2 light intensity.
Data was analyzed using repeated measures ANOVA and paired-sample t-test (α=0.05).
Results.
There were no significant differences in temperature rise means between the two dentin samples for each irradiation duration (P>0.0001), with significant differences between the two irradiation durations (P>0.0001).
Temperature rise measured with 40 s irradiation was significantly higher than that of 10 s duration for undemineralized and demineralized dentin P<0.0001).
Conclusions.
Light polymerization of P90 low-shrinkage composite resin resulted in temperature rise approaching threshold value under artificially demineralized and undemineralized dentin.
American Psychological Association (APA)
Mousavinasab, Sayed-Mostafa& Khoroushi, Maryam& Moharreri, Mohammadreza. 2012. Temperature Rise during Primer, Adhesive, and Composite Resin Photopolymerization of a Low-Shrinkage Composite Resin under Caries-Like Dentin Lesions. ISRN Dentistry،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-453876
Modern Language Association (MLA)
Mousavinasab, Sayed-Mostafa…[et al.]. Temperature Rise during Primer, Adhesive, and Composite Resin Photopolymerization of a Low-Shrinkage Composite Resin under Caries-Like Dentin Lesions. ISRN Dentistry No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-453876
American Medical Association (AMA)
Mousavinasab, Sayed-Mostafa& Khoroushi, Maryam& Moharreri, Mohammadreza. Temperature Rise during Primer, Adhesive, and Composite Resin Photopolymerization of a Low-Shrinkage Composite Resin under Caries-Like Dentin Lesions. ISRN Dentistry. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-453876
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-453876