Issues

In this study, very few Y-TZP frameworks failed, but the porcelain veneers frequently chipped. Cementing with an adhesive resin cement helped veneers survive larger fatigue loads without chipping. Treatment of the intaglio surface of the crowns neither helped nor hurt fatigue resistance.

The use of digital smile design is a useful resource for diagnosis, simulation, and evaluation of esthetic rehabilitation and it can improve communication among the patient, clinician, and dental laboratories.

A standard fiber post does not adapt well to a flared root canal preparation, leaving a large cement space between the post and the tooth structure. Direct anatomic posts provide an alternative technique for restoring these teeth with less chance of debonding.

Dental bleaching promotes physical alteration in enamel, although these alterations might decrease when toothpaste is applied prior to the whitening procedures.

Bleaching gels with a relatively high concentration of peroxide and shorter application time might be less harmful to enamel. A clinically significant whitening effect can be obtained after a few bleaching treatments.

The reestablishment of esthetics and function of anterior teeth can be achieved with correct treatment planning using a conservative technique to condition soft tissues and full metal-free crowns to provide an esthetic smile.

After bracket debonding and mechanical removal of residual bonded material, the use of enamel microabrasion can be an excellent method for restoring the morphologic characteristics of the enamel surface.

Using a customized tray to cover a 35% hydrogen peroxide bleaching agent increases the absolute risk and intensity of tooth sensitivity for the first 24 hours after each in-office bleaching session.

The use of conventional or resin modified glass ionomers to fill the pulp chamber before cavity filling with an incremental direct composite restoration reduced cuspal deflection and residual shrinkage stress and increased the fracture resistance of endodontically treated molars.

In this investigation, the authors evaluated the in vitro performance of the International Caries Detection and Assessment System visual criteria, bitewing radiography examination, and a pen-type laser fluorescence device in detecting approximal caries around amalgam restorations in permanent teeth.

Exposure to bleaching agents can result in changes in the tooth-restoration interface.

A no-post, full, anatomically shaped high-performance polymer crown can be used as a long-term provisional crown immediately after root canal treatment. Following recovery of the surrounding tissues and confirmation of endodontic status and prognosis, the polymer restoration can serve as the definitive restoration or as a core buildup under an all-ceramic crown.

When restoring endodontically treated molars without ferrule, the use of a post must be questioned and may be substituted by the selection of improved buildup materials.

Lithium disilicate computer-aided design/computer-aided manufacturing (CAD/CAM) crowns with or without composite resin buildup exceeded expectations in restoring endodontically treated molars. The 2-mm buildup provided the highest load to failure and good fatigue resistance, so it can be indicated in cases of high occlusal loading.

The use of a light activation source or enamel preconditioning did not affect the outcome of in-office bleaching with 35% hydrogen peroxide. However, the bleaching gel was capable of diffusing through enamel and dentin, causing toxic effects to the pulp cells.

Clinicians are provided useful information about the staining potential of common beverages on resin infiltration–treated enamel surfaces.

Conditioning with 37% phosphoric acid prior to self-adhesive cementation of glass fiber posts, applied with an elongation tip, may offer higher push-out strength compared with other cementation methods for improved clinical longevity.