Bulk-fill composites

Koh,  Kyeol; Park,  Jeong-Won

doi:2019.57.3.162

J Korean Dent Assoc > Volume 57(3); 2019 > Article

The Journal of The Korean Dental Association 2019;57(3):162-168.
DOI: https://doi.org/10.22974/jkda.2019.57.3.003 Published online March 31, 2019.

Bulk-fill 복합레진, 믿고 사용해도 될까?

고결¹, 박정원²

^¹연세대학교강남세브란스병원 치과보존과
^²연세대학교강남세브란스병원 치과보존과

Bulk-fill composites

Kyeol Koh¹, Jeong-Won Park²

¹Department of Conservative Dentistry, Gangnam Severance Hospital, College of Dentistry, Yonsei University
²Department of Conservative Dentistry, Gangnam Severance Hospital, College of Dentistry, Yonsei University

Abstract

Composite resin restorations in posterior teeth are increasing due to the aesthetic needs of patients and the development of materials. This trend will accelerate in line with domestic insurance policies. However, resin composites generate stresses due to their contraction during the polymerization process. To reduce the polymerization shrinkage stress of resin composites, incremental layering technique has been recommended for decades. This technique reduces stress at the cavity wall interface and allows a more efficient light curing of the material. Bulk-fill resin composites have been designed to simplify the restorative technique because they can be placed into cavities in a single increment of 4-5mm. The simplification of the operative procedures is desirable in clinical daily practice. In this context, bulk-fill resin composites are an attractive alternative for posterior restorations. However, a clearer understanding of the clinical performance of this relatively new class of materials in comparison to conventional resin composites is required. Based on previous studies, the aim of the current review was to present the clinical criteria for the use of bulk-fill composites in direct restorations of posterior teeth.

Key Words: Bulk-fill composites;polymerization;shrinkage stress;longevity;