The dimensional changes of 4 types commercial luting cements after setting were examined in distilled water, using a developed thermal expansion testing apparatus. The measurements were carried out under three conditions: increasing temperature (from 37•Ž to 60•Ž), decreasing temperature (from 37•Ž to 10•Ž), and constant temperature (37•Ž). The results indicated that: (1) the zinc phosphate cem...

AIM This study evaluated the bond strength and failure mode of enamel/resin-based composite veneers bonded with three different dual cured resin adhesive systems. METHODS AND MATERIALS Standard preparations for laminate veneer restorations were made on 30 human central incisors using depth cutting burs (0.5 mm depth at the incisal area and 0.3 mm at the gingival area). Thirty indirect laminat...

The aim of this study was to evaluate the physico-mechanical properties a new cavity base material containing mineral trioxide aggregate, LA-T1, prototyped by Neo Dental Chemical Products for indirect restoration. Three materials, Cavios (CAV, Products), and Bulk Base Hard (BBH, Sun Medical), were examined. depth cure, microshear bond strength with resin-based luting cement, compressive these m...

STATEMENT OF PROBLEM Compressive strength (CS) and sorption/solubility of the luting cements are two associated factors. Searching a correlation between sorption/solubility and compressive strength of various luting cements is required. OBJECTIVES To measure the water sorption/solubility, and compressive strength of three resin-based and one conventional glass ionomer (CGI) luting cement afte...

Background: The success of fixed dentures is influenced by the cementation procedure. Resin cement most commonly used luting materials. In addition to resin cement, there are other types materials, preheated composite. Preheating composite allow material have a low level viscosity, therefore can be as material. purpose this study was evaluate comparison shear strength and on indirect lithium di...

OBJECTIVES To determine the retentive strength and failure mode of undercut composite post, glass fiber post and polyethylene fiber post luted with flowable composite resin and resin-cement. MATERIALS AND METHODS Coronal parts of 120 primary canine teeth were sectioned and specimens were treated endodontically. The teeth were randomly divided into 6 groups (n = 20). Prepared root canals recei...

A one-year clinical study was performed on the efficacy of a bioactive dental cement (Ceramir C&B) with calcium aluminate and glass ionomer components. The study was performed on 38 crown and bridge abutments in 17 patients. Preparation parameters were recorded, as well as working-times, setting-times, and other handling characteristics. Baseline data were also recorded for gingival inflammatio...

AIM The aim of this study was to investigate the fracture resistance of two types of ceramic crowns cemented with two different cements. METHODS AND MATERIALS Forty premolar crowns were fabricated using lithium-disilicate (IPS Empress-2) and glass-infiltrated aluminium-oxide (In-Ceram) ceramic systems. The crowns were divided into four groups (n=10) with Group 1 (IPS Empress-2) and Group 2 (I...

This study aimed to assess the effect of post-cementation waiting time for core preparation of cemented cast posts and cores had on retention in the root canal, using two different luting materials. Sixty extracted human canines were sectioned 16 mm from the root apex. After cast nickel-chromium metal posts and cores were fabricated and luted with zinc phosphate (ZP) cement or resin cement (RC)...