This study evaluate the use of bovine teeth as a substitute for human teeth on fracture strength tests of composite fixed partial dentures (Cpd), with and without fiberglass reinforcement (Fg). Eighty teeth were selected, being 40 bovine incisors, 20 human premolars and 20 molars. Bovine incisors were ground to get a platform, simulating an occlusal surface of human molar. Teeth in pairs were e...

Different materials and techniques are used in dental wear restoration with the objective of increasing teeth resistance, and providing an aesthetic appearance. The aim of this study was to compare the fracture resistance of amalgam and posterior composite in abrasioned premolar and molar teeth. In this study, 60 carries and restoration- free human permanent mandibular premolar and molar teeth,...

statement of problem: despite the wide range of new dental materials, there is still a need for biomaterials demonstrating high biocompatibility, antimicrobial effects and ideal mechanical properties. purpose: the aim of this study was to histologically evaluate the pulpal response to a conventional glass ionomer, a resin modified glass ionomer and a calcium hydroxide in human teeth. materials ...

introduction: the success of endodontic treatment depends on the method and quality of cleaning, disinfection and three-dimensional sealing of the root canal. the smear layer can play an important role in the success or failure of endodontic treatment. there is controversy over the presence or removal of the smear layer in relation to the success or failure of endodontic treatment. this study u...

to evaluate the interfacial morphology and the bond strength produced by the three-step, two-step and single-step bonding systems in primary teeth.occlusal surfaces of 72 extracted human deciduous teeth were ground to expose the dentin. the teeth were divided into four groups: (a) scotchbond multipurpose (3m, espe), (b) adh se (vivadent), (d) optibond all-in-one (kerr) and (e)futurabond nr (voc...

leptospirosis caused by infection with pathogenic leptospires, which is the most prevalent zoonotic disease in the world. the outer membrane proteins (omps) of pathogenic leptospires such as lipl41 play a crucial role in pathogenesis of this disease. therefore a major challenge to develop an effective vaccine against leptospirosis is application of basic research on the omps of leptospires to i...