This in vitro study aimed to accelerate the remineralization of a completely demineralized dentine collagen block in order to regenerate the dentinal microstructure of calcified collagen fibrils by a novel electric field-aided biomimetic mineralization system in the absence of non-collagenous proteins. Completely demineralized human dentine slices were prepared using ethylene diamine tetraaceti...

Instability of the dentine-resin interface is owed to partial/incomplete penetration resin adhesives in collagen fibrils. However, interfacial hydrolysis resin-matrix hybrid layer complex activates collagenolytic and esterase enzymes that cause degradation layer. Adequate hybridization often prevented due water trapped between interfibrillar spaces network. Cyclic fatigue rupture denaturation e...

The prognosis of root-filled teeth depends not only on the success of the endodontic treatment but also on the amount of remaining dentine tissue, and the nature of final restoration. Fractures of restored endodontically treated teeth are a common occurrence in clinical practice. This article outlines the mechanisms and risk factors for fracture predilection in endodontically treated teeth. Dif...

The purpose of this study was to measure the shear bond strength of Gluma/Lumifor (Gluma and Lumifor--Columbus Dental, St. Louis, MO) to the occlusal dentin of primary first and second molars, permanent first and second molars and premolars. The data were examined for differences using a one-way analysis of variance and Duncan's Multiple Range test. The shear bond strength, (kc/cm2, x +/- SEM) ...

The dentine-enamel junction (DEJ) is an important internal interface with strong and durable bonding between the hard outer layer (enamel) and the soft inner tooth core (dentine). This study investigated the microstructure of the DEJ by X-ray imaging method and synchrotron X-ray scattering techniques. Further high resolution elastic modulus mapping indicates that the DEJ is a band with a graded...

C A L C I U M P H O S P H A T E S Rhynchobatus ancylostmu ; Guitar fish (ray). The teeth of fish show great variety of form and structure. In sharks and rays there is a succession of teeth; new ones form on the buccal surface of the jaws and, as they migrate outwards, they increase in size and thickness. Finally, they are cast off and replaced by succeeding teeth. The teeth in this specimen are...