Photodynamic Therapy in Oral Cancer: A Narrative Review.

A comprehensive search in PubMed, Scopus, and Google Scholar was performed using relevant keywords to structure this narrative review. Only English articles were included and assessed according to titles, abstracts, and full texts. Photodynamic therapy (PDT) is applied for targeting pre-malignancy and malignancies in the head and neck, skin, lungs, and gastrointestinal tract and has been greatly promising in reducing disfigurement and morbidity.

Clinical evaluation of marginal fit of uncemented CAD-CAM monolithic zirconia three-unit restorations in anterior areas, using scannable and conventional polyvinyl siloxane impression materials.

Background: The accuracy of impression techniques determines the marginal fit of fixed prostheses. Marginal accuracy plays a main role in the success and failure of treatments. This in-vivo study evaluated the marginal fit of anterior three-unit monolithic zirconia fixed partial dentures (FPDs) using conventional and scannable polyvinyl siloxane impression materials.

The Effect of Translucency and Surface Treatment on the Flexural Strength of Aged Monolithic Zirconia.

Aims: This study aimed to evaluate the effect of the degrees of translucency in different types of monolithic zirconia as well as the aging and surface treatment with airborne particle abrasion on the flexural strength of monolithic zirconia.

Materials And Methods: Sixty bar-shaped specimens were fabricated from three different types of presintered monolithic zirconia ( = 20 per group) including low translucent (LT) (DD Bio ZW iso, high strength zirconia, Dental Direkt, Germany), high translucent (HT) (DD Bio ZX 98, high translucent zirconia, Dental Direkt, Germany), and multilayered system (ML) (DD cubeX2®ML, multilayer, cubic zirconia system, Dental Direkt, Germany). Each monolithic zirconia group was equally subdivided according to be either air-abraded with 110 µm aluminium oxide particles or left untreated (control).