دورية أكاديمية
أعرض في EDS

Shrinkage Stress and Temperature Variation in Resin Composites Cured via Different Photoactivation Methods: Insights for Standardisation of the Photopolymerisation.

التفاصيل البيبلوغرافية
العنوان: Shrinkage Stress and Temperature Variation in Resin Composites Cured via Different Photoactivation Methods: Insights for Standardisation of the Photopolymerisation.
المؤلفون: Dos Santos Sousa G; Medical School, Sao Paulo State University (UNESP), Avenue Prof. Mário Rubens Guimarães Montenegro, s/n, Botucatu 18618-687, Brazil., Guimarães GF; Department of Bioprocess and Biotechnology, School of Agriculture, Sao Paulo State University (UNESP), Street José Barbosa de Barros, 1780, Botucatu 18610-034, Brazil., Marcelino E; Medical School, Sao Paulo State University (UNESP), Avenue Prof. Mário Rubens Guimarães Montenegro, s/n, Botucatu 18618-687, Brazil., Rodokas JEP; Medical School, Sao Paulo State University (UNESP), Avenue Prof. Mário Rubens Guimarães Montenegro, s/n, Botucatu 18618-687, Brazil.; School of Engineering, Sao Paulo State University (UNESP), Avenue Eng. Luiz Edmundo Carrijo Coube, 14-01, Bauru 17033-360, Brazil., de Oliveira Júnior AJ; Department of Bioprocess and Biotechnology, School of Agriculture, Sao Paulo State University (UNESP), Street José Barbosa de Barros, 1780, Botucatu 18610-034, Brazil., Cesarino I; Department of Bioprocess and Biotechnology, School of Agriculture, Sao Paulo State University (UNESP), Street José Barbosa de Barros, 1780, Botucatu 18610-034, Brazil., Leão AL; Department of Bioprocess and Biotechnology, School of Agriculture, Sao Paulo State University (UNESP), Street José Barbosa de Barros, 1780, Botucatu 18610-034, Brazil., Dos Santos Riccardi C; Department of Bioprocess and Biotechnology, School of Agriculture, Sao Paulo State University (UNESP), Street José Barbosa de Barros, 1780, Botucatu 18610-034, Brazil., Arjmand M; School of Engineering, University of British Columbia (UBC), 3333 University Way, Kelowna, BC V1V 1V7, Canada., Simões RP; Medical School, Sao Paulo State University (UNESP), Avenue Prof. Mário Rubens Guimarães Montenegro, s/n, Botucatu 18618-687, Brazil.; Department of Bioprocess and Biotechnology, School of Agriculture, Sao Paulo State University (UNESP), Street José Barbosa de Barros, 1780, Botucatu 18610-034, Brazil.
المصدر: Polymers [Polymers (Basel)] 2021 Jun 23; Vol. 13 (13). Date of Electronic Publication: 2021 Jun 23.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI Country of Publication: Switzerland NLM ID: 101545357 Publication Model: Electronic Cited Medium: Internet ISSN: 2073-4360 (Electronic) Linking ISSN: 20734360 NLM ISO Abbreviation: Polymers (Basel) Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Basel : MDPI
مستخلص: The literature has shown that there is no consensus regarding the best resin composite photoactivation protocol. This study evaluated the efficiency of the conventional, soft-start, pulse-delay and exponential protocols for photoactivation of resin composites in reducing the shrinkage stress and temperature variation during the photopolymerisation. The photoactivation processes were performed using a photocuring unit and a smartphone app developed to control the irradiance according each photoactivation protocol. These photoactivation methods were evaluated applying photoactivation energies recommended by the resins manufactures. Three brands of resin composites were analysed: Z-250, Charisma and Ultrafill. The cure effectiveness was evaluated through depth of cure experiments. All results were statistically evaluated using one-way and multi-factor analysis of variance (ANOVA). The use of exponential and pulse-delay methods resulted in a significant reduction of the shrinkage stress for all evaluated resins; however, the pulse-delay method required too long a photoactivation time. The increases on the temperature were lower when the exponential photoactivation was applied; however, the temperature variation for all photoactivation protocols was not enough to cause damage in the restoration area. The evaluation of the depth of cure showed that all photoactivation protocols resulted in cured resins with equivalent hardness, indicating that the choice of an alternative photoactivation protocol did not harm the polymerisation. In this way, the results showed the exponential protocol as the best photoactivation technique for practical applications.
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معلومات مُعتمدة: 2017/08188-0 Fundação de Amparo à Pesquisa do Estado de São Paulo
فهرسة مساهمة: Keywords: dental restoration failure; light-curing of dental adhesives; light-curing of dental resins; photoactivation protocol; synthetic resins
تواريخ الأحداث: Date Created: 20210702 Latest Revision: 20210713
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC8272171
DOI: 10.3390/polym13132065
PMID: 34201846
قاعدة البيانات: MEDLINE
الوصف
تدمد:2073-4360
DOI:10.3390/polym13132065