Authors: dos Santos, Paulo Henrique¹; Pavan, Sabrina¹; Assunção, Wirley Gonçalves¹; Consani, Simonides²; Correr-Sobrinho, Lourenço²; Sinhoreti, Mario Alexandre Coelho²

Source: Journal of Dentistry for Children, Volume 75, Number 1, January-April 2008 , pp. 24-28(5)

Publisher: American Academy of Pediatric Dentistry

Abstract:

Purpose: The purpose of this study was to verify the influence of surface sealants and dentin adhesive systems on the microleakage of composite restorations.

Methods: Class V cavities were made on the buccal faces of 100 permanent third molars and restored with Z250. After 24 hours, they were submitted to polishing and finishing processes. The teeth were divided into groups according to the sealant agent: group 1—Single Bond; group 2—Opti Bond Solo Plus; group 3—Fortify; group 4—Fortify Plus; and group 5—control without sealant. The analysis of immediate microleakage was performed in 10 restorations from each group, soon after the sealing. The other 10 specimens from each group were submitted to tooth-brushing and thermal cycles. The teeth were isolated and immersed in 2% methylene blue solution, washed in tap water, and sectioned in the buccolingual direction. The percentage of marginal leakage was calculated using an image analysis program, and results were submitted to analysis of variance and Tukey's test.

Results: All the sealed groups demonstrated lower microleakage values compared to the control group. Group 3, sealed with Fortify, presented the lowest mean microleakage values.

Conclusion: The application of surface sealants effectively decreased the microleakage in composite resin restorations.

Keywords: IN VITRO; COATING; COMPOSITE HARD TISSUE

Document Type: Research article

Affiliations: 1: Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University, Araçatuba, Brazil 2: Department of Restorative Dentistry, Piracicaba School of Dentistry, Campinas State University, Piracicaba, Brazil

Publication date: 2008-01-01

More about this publication?

• Acquired after the merger between the American Society of Dentistry for Children and the American Academy of Pediatric Dentistry in 2002, the Journal of Dentistry for Children (JDC) is an internationally renowned journal whose publishing dates back to 1934. Published three times a year, JDC promotes the practice, education and research specifically related to the specialty of pediatric dentistry. It covers a wide range of topics related to the clinical care of children, from clinical techniques of daily importance to the practitioner, to studies on child behavior and growth and development. JDC also provides information on the physical, psychological and emotional conditions of children as they relate to and affect their dental health.
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