The Retentive Strength of Cemented Zirconium Oxide Crowns after Dentin Pretreatment with Desensitizing Paste Containing 8% Arginine and Calcium Carbonate

Abstract

The effect of dentin pretreatment with Desensitizing Paste containing 8% arginine and calcium carbonate on the retention of zirconium oxide (Y-TZP) crowns was tested. Forty molar teeth were mounted and prepared using a standardized protocol. Y-TZP crowns were produced using computer-aided design and computer-aided manufacturing (CAD-CAM) technology. The 40 prepared teeth were either pretreated with Desensitizing Paste or not pretreated. After two weeks, each group was subdivided into two groups, cemented with either Resin Modified Glass Ionomer Cement (RMGIC) or Self Adhesive Resin Cement (SARC)). Prior to cementation, the surface areas of the prepared teeth were measured. After aging, the cemented crown-tooth assemblies were tested for retentive strength using a universal testing machine. The debonded surfaces of the teeth and crowns were examined microscopically at 10× magnification. Pretreating the dentin surfaces with Desensitizing Paste prior to cementation did not affect the retention of the Y-TZP crowns. The retentive values for RMGIC (3.04 ± 0.77 MPa) were significantly higher than those for SARC (2.28 ± 0.58 MPa). The predominant failure modes for the RMGIC and SARC were adhesive cement-dentin and adhesive cement-crown, respectively. An 8.0% arginine and calcium carbonate in-office desensitizing paste can be safely used to reduce post-cementation sensitivity without reducing the retentive strength of Y-TZP crowns.

Effect of a filled adhesive as the desensitizer on bond strength of “Self‐Adhesive Cements To” differently severity of fluorosed dentin

“…In RMGIC group, the type of failure most frequently found was adhesive no matter whether P&B NT was applied, which has also been reported by Pilo et al (2016) and Dursun and Attal (2011). Classifications should be refined to make the difference between different severity of fluorosis in the further study.…”

“…Regarding failure modes, in RXU group, mixed failure was predominant regardless of P&B NT pretreatment, which agreed with the results of those who used self‐adhesive resin cements (Boing, Gomes, Gomes, Reis, & Gomes, ; Kim, Cho, Roh, & Shin, ). Pilo et al () have reported predominant failure mode for RelyX U200 was adhesive cement‐crown and the classification was not identical with this study. In RMGIC group, the type of failure most frequently found was adhesive no matter whether P&B NT was applied, which has also been reported by Pilo et al () and Dursun and Attal ().…”

“…Pilo et al () have reported predominant failure mode for RelyX U200 was adhesive cement‐crown and the classification was not identical with this study. In RMGIC group, the type of failure most frequently found was adhesive no matter whether P&B NT was applied, which has also been reported by Pilo et al () and Dursun and Attal (). Classifications should be refined to make the difference between different severity of fluorosis in the further study.…”

“…Vaz, Hipolito, D'Alpino and Goes (2012) evaluated SEM micromorphology and microtensile bond strength of three resin cements to dentin, and reported that even though the self-adhesive resin cement did not exhibit authentic hybrid layer, it was able to promote reliable adhesion with the underlying dentin. Pilo, Harel, Nissan and Levartovsky (2016) has reported that RelyX U200 contained no bonding agents so that resin sealing or desensitizing agents might compromise the bond strength to the dentin, such as Colgate Sensitive Pro-Relief…”

The Retentive Strength of Laser-Sintered Cobalt-Chromium-Based Crowns Cemented by Glass Ionomer and Zinc Phosphate Cements after Pretreatment with a Desensitizing Paste Containing 8% Arginine and Calcium Carbonate

“…No significant difference in the bonding strength of composites to enamel or dentin pretreated with this desensitizing paste has been reported [22][23][24]. In addition, pretreating dentin surfaces with Pro-Relief Desensitizing Paste prior to cementation did not affect the retention of complete cast metal crowns luted with a glass ionomer cement (GIC) [25] or the retention of zirconium oxide crowns luted with a resin-modified GIC or a self-adhesive resin cement [26].…”