The aims of this study were to investigate (1) whether the addition of catalytic enzymes and violet LED light to the conventional in-office hydrogen peroxide (H2O2) bleaching protocol could improve esthetic results in a shorter time and (2) whether these strategies could minimize adverse effects on the enamel surface and the diffusion of H2O2 through the tooth structure.

To investigate marginal integrity of experimental and commercial ion-releasing restorative materials before and after thermomechanical loading (TML).

This study assessed photoactivated dentin-pulp complex materials concerning cell viability, degree of conversion, compressive strength, and bioactive potential. The materials Theracal, Hidrox-cal, and Ultra-Blend underwent cell viability testing using the MTT assay (n = 6), degree of conversion analysis via Raman spectroscopy (n = 5), and compressive strength testing on a universal testing machine (n = 5). Bioactive potential (n = 3) was determined through scanning electron microscopy and Raman spectroscopy after 30 days of immersion in simulated body fluid. For cell viability, the Kruskal-Wallis test was employed, followed by Dunn's post hoc test. Degree of conversion, compressive strength, and bioactivity data were analyzed by one-way ANOVA, followed by Tukey's post hoc tests. For all analyses, α = 0.05 was considered. Cell viability was similar between Hidrox-cal and Ultra-Blend, while Theracal exhibited the lowest cell viability values. The degree of conversion was also higher in the Hidrox-cal group, which did not differ from Ultra-Blend. No differences were observed in compressive strength. The bioactive potential demonstrated a greater formation of crystalline structures in Theracal and Ultra-Blend, however limited. Light-cured pulp capping materials, despite demonstrating good mechanical properties, showed limited performance in terms of bioactivity and cytotoxicity ranging from slight to high.

Polishing of resin composites ensures optimal esthetics and longevity. Effective polishing techniques for conventional multi-shade resin composites are well documented. However, less is known regarding acceptable polishing for newer single-shade universal resin composites.

The purpose of this study was to measure clinical competence in preventive and restorative dental procedures among recently graduated dentists entering US military service.

This study evaluated the effect of delay of the etch-and-rinse bonding procedure on in vivo real-time intrapulpal temperature during restoration of Class V preparations on human premolars.

Although the use of modeling resins for sculpting resin composites is not a recent development, it is still not widely practiced, either because of a lack of knowledge or because of concerns about the potential deleterious effects induced by its use. This study presents a clinical case illustrating how the use of modeling resins, in conjunction with minimally invasive techniques, can achieve satisfactory clinical outcomes in the treatment of deep, unsightly enamel stains.

Bond strength tests are used as predictors of the clinical longevity of dental restorations. However, the aging of bond strength specimens is often simulated with static water storage, even though the saliva flows over teeth and restorations in the mouth. This study investigated the effect of water under static and flow conditions on the bond strength between zirconia and tooth structure using different test designs. Ninety human molars with prepared flat dentin surfaces were randomly divided into three groups according to the test design: Tensile, Shear, and Crown pull-off. The Crown pull-off group received additional standard full crown preparations. Zirconia specimens milled according to the shape of each test design (n=30) were bonded to the tooth structure using resin cement. There were three subgroups (n=10) according to the artificial aging procedure: NA - no aging (24 hours); SW - static water (30 days); FW - water flow (30 days). Bond strength was assessed using a universal testing machine, and the load at failure was recorded. Data were analyzed using two-way ANOVA and Tukey post hoc tests (α=0.05), and the mode of failure was also classified. Two-way ANOVA revealed a significant effect of the test design (p<0.001). However, no effect was observed for the aging procedure (p=0.166). The interaction aging*test design was significant (p=0.019). FW significantly decreased the retention of zirconia crowns to tooth structure (p<0.05) but did not affect the other test design specimens. The mode of failure was adhesive (100%) at the zirconia/cement interface for all specimens and aging conditions, except for Crown pull-off / FW, which were predominantly mixed (60%). FW negatively affected the retention of Y-PSZ crowns to the tooth structure.

To conduct a systematic review and meta-analysis to compare the efficacy, risk, and intensity of tooth sensitivity of at-home and in-office bleaching. This is an update of a systematic review first published in 2016, adding new evidence.

Various in vitro approaches have been used to evaluate whitening efficacy, utilizing both stained and non-stained tooth substrates, which may influence the outcomes. This study aimed to assess the effect of previous in vitro staining on whitening efficacy and the enamel surface using hydrogen peroxide (HP) gels with different concentrations.

This randomized clinical trial aimed to evaluate the efficacy, risk and intensity of tooth sensitivity (TS) and gingival irritation (GI), and esthetic self-perception of in-office dental bleaching using a bleaching gel 1 week after mixing.

To evaluate the bond strength of self-adhesive (no need for bonding procedures) and conventional (with total-etch or self-etch primers) cementation strategies and the qualitative variables that interfere with the adhesion of fiberglass posts through a systematic review and meta-analysis of in vitro studies.

To present a clinical case featuring a posterior cantilevered single-retainer all-ceramic resin-bonded fixed dental prosthesis (PC-RBFDP) with 12 years of follow-up. This FDP was used to restore a missing premolar using a single-retainer canine abutment. The aim was also to draw clinical recommendations based on current data and experience.

This study aimed to verify whether dental adhesives prevent noncarious cervical lesion (NCCL) development in an in vitro simulation model based on abrasive/erosive challenges.

This study compared four CAD/CAM lithium disilicate-reinforced glass ceramic systems (IPS e.max CAD, Rosetta SM CAD, T-lithium CAD, and IRIS CAD) regarding their crystalline and microstructural characteristics, thermal properties, mechanical strength, and bonding to a resin cement.

In this case report, we describe the use of a universal shade resin composite to restore a discolored tooth before nonvital tooth bleaching. The intent of this procedure is to maintain an acceptable color match, eliminating the need for subsequent replacement of the restoration after bleaching.

To evaluate the in vivo and in vitro performance of an intraoral camera (IC), visual examination using the Thylstrup and Fejerskov Index (TFI), and quantitative light-induced fluorescence (QLF) to detect and quantify enamel fluorosis (EF).

To depict restorative treatment recommendations of US dentists for posterior proximal enamel caries lesions detected with bitewing radiographs in permanent teeth.