Effect of hydrofluoric acid and self-etch ceramic primers on the flexural strength and fatigue resistance of glass ceramics: A systematic review and meta-analysis of studies.

This systematic review evaluated the effect of different hydrofluoric acid (HF) etching regimens and a self-etch ceramic primer (SECP) on the flexural strength (FS) and fatigue failure load (FFL) of glass-ceramic materials.The identification of relevant studies was conducted by two authors in five databases: PubMED, Scopus, Web Of Science, LILACS and Virtual Health Library (BVS) until July 2022 with no year limit. The analysis was conducted in RevMan 5.

Resistance of Glaze Application on Indirect Restorative CAD/CAM Materials Against Abrasive Toothbrushing Wear.

Purpose: To evaluate the effect of toothbrushing on the surface roughness (Sa), roughness profile (Rv), gloss units (GU), and surface morphology of three glazed ceramics.

Materials And Methods: Specimens (n = 7) were made from the following different CAD/CAM materials and evaluated: lithium disilicate-based glass ceramic (EM); zirconia-reinforced lithium silicate glass ceramic (CE); and 6 mol% yttria partially-stabilized zirconia (IN). IPS e.

Conservative approach to masking a darkened tooth with a direct composite resin restoration: a case report with 5-year follow-up.

The objective of this case report is to describe a direct conservative technique for restoring the esthetics and function of a severely discolored endodontically treated tooth. A 25-year-old man presented with an esthetic complaint about severe darkening of his endodontically treated maxillary left central incisor. The tooth had adequate sound tooth structure, so the placement of a conservative direct composite resin veneer was proposed.

Light transmission through a translucent fiber post.

This study is a quantitative assessment of the luminous energy transmitted through different translucent fiber posts. After embedding the posts in black resin, the blocks were submitted to sequential cuts in a precision machine, and depths of 16 mm, 12 mm, 8 mm, and 4 mm were assessed for light transmission with a digital photometer. The quantitative analysis showed significant differences between different posts and depths.

Effects of a 10% carbamide peroxide bleaching agent on rat oral epithelium proliferation.

The purpose of the present study was to evaluate the influence of short course topical application of carbamide peroxide on proliferating cell nuclear antigen (PCNA) immunohistochemical expression in the oral tongue mucosa of rats. Twelve male Wistar rats were submitted to topical application of 10% carbamide peroxide on one side of the dorsal tongue once a week for three consecutive weeks. Only distilled water was applied on the control side.