A marginal fit of all-ceramic crowns is a prerequisite for the long-term clinical success dental restoration. Few in vivo studies have investigated effect film thickness various luting agents on vertical discrepancy. This study evaluated influence three cements occlusal discrepancy milled using complete digital workflow. Forty-three patients treated students’ clinic Tel-Aviv University with 45 ...

OBJECTIVES This study aimed to evaluate the vertical discrepancy of implant-supported crown structures constructed with vacuum-casting and Direct Metal Laser Sintering (DMLS) technologies, and luted with different cement types. STUDY DESIGN Crown copings were fabricated using: (1) direct metal laser sintered Co-Cr (LS); (2) vacuum-cast Co-Cr (CC); and (3) vacuum-cast Ti (CT). Frameworks were ...

as well as by an increase in susceptibility to caries due to dissolution of the highly calcified prismless enamel by acid etching, or it could be attributed to reduced self-eleaning activity in the area around the bracket base. Recently, glass ionomer cement (GIC)iii-iS) has been used as an adhesive material for the purpose of enamel protection beeause no etching is required for application. Ho...

PURPOSE To determine the bond stability and the change in interfacial ultrastructure of a conventional glassionomer cement bonded to dentin, with and without pretreatment using a polyalkenoic acid conditioner. MATERIALS AND METHODS The occlusal dentin surfaces of 10 teeth were ground flat. Glass-ionomer cement was bonded to the surfaces either with or without polyalkenoic acid conditioning. T...

Objective: To compare the cytotoxicity level of a new calcium silicate-based resin cement (TheraCem) with two commonly used cements, including conventional self-adhesive (Panavia SA) and resinmodified glass ionomer (FujiCem2), on human gingival fibroblast cells after 24 48 hours. Material Methods: Twelve discs each type were fabricated. The extract disks was made by incubating them in cell medi...

The development of aesthetic and adhesive dentistry and the availability of reliable new dental materials have changed the daily practice of dentistry because these advances have led to more conservative cavity design and preservation of maximum sound dental tissues. The objective of this study is to compare the bond strength and microleakage of Compomer with Composite and Glass ionomer (conven...

BACKGROUND Cervical lesions of anterior and posterior teeth are a common finding in routine dental practice. They are of much concern to the patient, if present in esthetically sensitive regions. Adhesive tooth-colored restorative materials are generally recommended for treating such lesions. The aim of the present study was to evaluate and compare the effect of various food media (lime juice, ...

Chitosan is a biocompatible material that has been researched in many areas in recent years. As it can be obtained from renewable sources, has antimicrobial properties, is biocompatible, and has no toxic effect, chitosan is currently a widely-used material. The use of chitosan was investigated in different areas related to dentistry. Chitosan is used in the prevention of caries and wear, to inc...

PURPOSE The purpose of this in vitro study was to determine the effects of short- and long-term storage on the shear bond strength of metal, polycarbonate, and ceramic orthodontic bracket bases using autopolymerizing resin composite and resin-modified glass ionomer cements (RMGIC). The glass ionomer cement was applied in both a wet and a dry environment. METHODS With a method developed in the...

STATEMENT OF THE PROBLEM In the sandwich technique, the undesirable bond between the composite resin and glass-ionomer cement (GIc) is one of the most important factors which lead to the failure of restoration. Total-etch and self-etch adhesives may improve the bond strength based on their pH. PURPOSE The purpose of this study was to evaluate the shear bond strength between the nanofilled com...