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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Selective Removal of Necrotic Dentin in Primary Teeth Using Laser Irradiation: One-Year Clinical Evaluation of Composite Restorations

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Author(s):
Fernandes Polizeli, Silvana Aparecida [1] ; Curylofo-Zotti, Fabiana Almeida [2] ; Valerio, Rodrigo Alexandre [1] ; Nemezio, Mariana Alencar [1] ; Souza-Gabriel, Aline Evangelista [2] ; Borsatto, Maria Cristina [1] ; Milori Corona, Silmara Aparecida [2]
Total Authors: 7
Affiliation:
[1] Univ Sao Paulo, Ribeirao Preto Sch Dent, Clin Pediat Dent Dept, Sao Paulo, SP - Brazil
[2] Univ Sao Paulo, Ribeirao Preto Sch Dent, Restorat Dent Dept, Sao Paulo, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF LASERS IN MEDICAL SCIENCES; v. 10, n. 2, p. 108-116, SPR 2019.
Web of Science Citations: 0
Abstract

Introduction: This study aimed to evaluate the child's salivary cortisol levels, clinical performance and marginal adaptation of restorations after selective removal of necrotic dentin in primary teeth using Er: YAG laser irradiation. Methods: A double-blind clinical study was performed in children at 7-10 years. Children who had at least 2 teeth with carious lesions involving the occlusal and proximal surfaces of primary molars counterparts were selected. Removal of necrotic dentin was performed by 2 methods: Er: YAG laser irradiation and bur-preparation. Cortisol levels (n =24) was evaluated by ELISA. Clinical analysis (n = 20) was performed after the restorations polish, 6 and 12 months after restorative procedure using United States Public Health Service (USPHS) method and photographs. Scanning electron microscopy (SEM) was used to analyz the marginal gap formation (n =20). The analysis of the data was performed by 95% confidence interval, Shapiro-Wilk test, Friedman and Wilcoxon post hoc tests (alpha = 5%). Results: Cortisol levels were higher during selective removal of necrotic dentin, regardless of the method used (P > 0.05). After 12 months, there was no evidence of the difference in the restorations performed on cavities prepared by both methods. SEM analysis revealed that the laser-irradiated teeth showed 10% of gaps in the full extent of restoration. For bur-prepared teeth, 20% of gaps were found at the cavosurface margin. Conclusion: The salivary cortisol levels on children that received Er: YAG laser irradiation for removal the necrotic dentin was similar to the control group. Class II restorations evaluated after 1 year period did not suffer interference by the use of Er: YAG laser irradiation. (AU)

FAPESP's process: 14/07942-4 - Caries removal using Er:YAG laser: anxiety evaluation, longitudinal evaluation of restorations, marginal adaptation of replica of restoration, microhardness adjacent to restorations and adhesive interface analysis
Grantee:Silmara Aparecida Milori Corona
Support type: Regular Research Grants