Bonding ability of resin cements to different types of CAD/CAM composite blocks

Abstract

This study investigated the bonding performance of two different types of resin cements to computer-aided design/computer-aided manufacturing (CAD/CAM) composite blocks based on the shear bond strength (SBS) test. A silane-containing self-adhesive resin cement (Panavia SA Cement Universal) and resin luting cement (Block HC Cem) with a primer, were used. Specimens were fabricated from three different types of CAD/CAM composite blocks, and their surfaces were blasted with alumina. Resin cements were bonded to the specimens, and their SBSs were measured after 15 min, 24 h, and after being subjected to thermal cycling for 10,000 and 30,000 cycles. Three-way ANOVA for bond strength revealed that CAD/CAM composite block, resin cement and storage time significantly influenced the SBS values, and the three-way interactions between the evaluated factors, and all the interactions were significant. It was concluded that the bonding performance of resin cements to CAD/CAM composite blocks were material and storage period dependent.

Progress in Dental Adhesive Materials

“…While 1 URC demonstrated bond strength to coronal and radicular dentin comparable to multistep and self-adhesive resin cements (Josic, Mazzitelli, Maravic, Radovic, et al 2022;Rohr et al 2022), another performed comparably (Yoshihara et al 2020) or worse than its predecessor (Oda et al 2022) when used without the pertinent adhesive system. Similarly, while 1 URC system exhibited improved bond strength to composite blocks (Rohr et al 2022), another demonstrated inferior outcomes when compared to a self-adhesive cement placed after a silane primer (Takahashi et al 2022). Further, it is important to note that the bond strength of URCs to enamel is lower at baseline (Atalay et al 2022) or after artificial aging (Rohr et al 2022) compared to several multistep or self-adhesive resin cements.…”

Effectiveness of Self-Adhesive Resin Luting Cement in CAD-CAM Blocks—A Systematic Review and Meta-Analysis

“…Seventy-seven articles were removed by reading the titles and abstracts, and 42 were removed after complete reading. The remaining 29 articles [1][2][3][4][5][6][7][8][9][10]14,22,[25][26][27][28]31,[33][34][35][36][37][38][39][40][41][42][43][44] were selected for the quality analysis. Manual research also retrieved three studies [30,45,46], three randomized clinical trials [24,47,48], six reviews [15,23,29,[49][50][51], and three meta-analyses [11,12,20], which were used to broaden the introduction and discussion sessions.…”

“…For quantitative analysis, 12 studies were sub-grouped to evaluate mechanical performance [1,2,[6][7][8][9][10]25,27,35,37,42] and four [3][4][5]26] to evaluate marginal parameters. Five articles initially thought to be included were rejected for the meta-analysis because they provided no quantitative results, making inclusion impossible for mechanical [14,38,40] or marginal assessment [22,28].…”

“…Self-adhesive resin cement aimed to reduce these conventional steps [8]. Conventional multi-step resin luting (with etch-and-rinse, self-etch adhesives, or priming) enables higher adhesive strength values of the bonding interfaces than the self-adhesive strategy alone [1,11,42,45], especially when a conventional resin cement is combined with a self-etch adhesive [6].…”

Influence of the nanostructural characteristics of inorganic fillers on the physical properties of resin cements

“…Various kinds of inorganic fillers, including SiO 2 and/or glass, are compounded with the common resin cements that are used to bond prostheses comprising CAD/CAM resin blocks to abutment teeth. Such fillers are included to enhance adhesive strength, suppress resin shrinkage during polymerization, and improve the seal between the prosthetic and the abutment teeth 13,14) . Although there have been several studies on the influence of inorganic fillers on the adhesive strengths of resin cements 15) , nanoscopic structuring studies concerning the interfacial bonding in cements is limited 16) .…”