Dentin cavity pretreatments to improve the bond strength of direct and CAD/CAM restorations using resin composite
Year: 2025
Type: article
Abstract: Dentin cavity wall pretreatments to improve the bond strength of direct and computer-aided design/computer-aided manufacturing (CAD/CAM) restorations using resin composite were examined. Experiment 1 divided 18 standardized MOD cavities into three conditions: no pretreatment (Group N, control); chemical pretreatment with EDTA solution (Group C); and mechanical pretreatment with glycine air-powder polishing (Group M). Specimens were restored using direct resin composites. Micro-tensile bond strength (μ-TBS) was measured after cyclic loading. The μ-TBS was significantly higher for Groups C and M than for Group N. Group M showed the best bonding reliability. In Experiment 2, cavity preparation, dentin pretreatment, cyclic loading, and μ-TBS testing were performed using the same methods applied in Experiment 1. Specimens were restored using CAD/CAM resin composite inlays. The μ-TBS was significantly higher for Groups C and M than for Group N. No significant difference in bonding reliability was apparent among all groups.
Source: Dental Materials Journal
DOI: 10.4012/dmj.2024-220
Authors: Reo SUGIYAMA, Toshio MASEKI
Institution: Nippon Dental University
Language: English
Subfield: Orthodontics
Field: Dentistry
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4408158455