PURPOSE The purpose of this prospective and randomized in vivo study was to compare the clinical and radiographic outcomes of an adhesive resin system vs a calcium hydroxide liner for protection of the dentin-pulp complex of primary molars treated with indirect pulp treatment. METHODS Forty-eight primary molars with deep occlusal caries, but without preoperative signs and symptoms of irrevers...

INTRODUCTION Along with introduction of dentin bonding agents (DBA), their clinical use as lining materials is increasing rapidly. Since remaining dentinal thickness (RDT) has always been a concern for cytopathic effect of restorative materials, its effect on reduction of cytotoxicity of these materials especially DBAs is critical. The purpose of this study was to evaluate and compare the cytot...

AIM The aim of this clinical study was to compare the fracture resistance, marginal adaptation, and rate of recurrent caries of bonded and nonbonded amalgam restorations in endodontically treated premolar teeth. METHODS AND MATERIALS A total of 36 patients with endodontically treated maxillary first or second premolars were selected and divided into three groups. The treatments in all groups ...

PURPOSE The aim of this study was to assess the adaptation of Vitremer with and without primer and compare to that of Z100 with Scotchbond Multi-Purpose. METHODS Fifty-seven Class II cavities were prepared in 32 extracted or exfoliated primary molars. The cavities were randomly assigned to one of three groups and restored as follows: group A, Vitremer with primer (20 preps); group B, Vitremer...

During the cementation of metallic restorations, the polymerization of dual-curing resin cements depends exclusively on chemical activation. This study evaluated the influence of chemical activation compared with dual-curing (chemical and light activation), on the hardness of four dual-curing resin cements. In a darkened environment, equal weight proportions of base and catalyst pastes of the c...

AIM The aim of this study was to compare the microtensile bond strength of three adhesive systems, using different methods of dentin preparation. MATERIALS AND METHODS A hundred and eight bovine teeth were used. The dentin from buccal face was exposed and prepared with three different methods, divided in 3 groups: Group 1 (DT)- diamond tip on a high-speed handpiece; Group 2 (CVD)-CVD tip on a...

Aim: To evaluate the impact of a dual-cured adhesive system on in situ degree conversion (DC), bond strength (BS) and failure mode (FM) interfaces dentin cavities restored with bulk-fill resin composite. Methods: 4-mm-deep 3.1 C-factor were created 68 bovine incisors (n = 17 per group). The lightcured (Scotchbond™ Universal) or (Adper™ Scotchbond™ Multi-purpose Plus) was applied to cavities, wh...

objectives: this study aimed to compare the shear bond strength (sbs) of composite to stainless steel crowns (ssc) using two mechanical surface treatments (msts) and two bonding systems. materials and methods: eighty-four sscs were divided into six groups of 14; group1: no mst+scotchbond universal adhesive (n+u), group 2: surface roughening by a diamond bur+scotchbond universal adhesive (r+u), ...

Advances in computer, surveying, and mapping technology have had a marked impact on the economic barriers to multipurpose land information systems. This has opened the way for institutional innovations that may help to achieve the data sharing and spatial registration objectives identified in the I960 National Research Council report on Multipurpose Cadastre.

Training of multipurpose workers in mental health is an essential component in the implementation of the National Mental Health Program. This study examines the efficacy of a six day training program and the changes in knowledge, management skills and attitudes of multipurpose workers with regard to mental disorders.