It has long been known that oral or intravenous administration of phosphate salts lowers the serum calcium concentration in normal animals (1, 2) and in hypercalcemic human subjects (3-5). Recently , interest has been renewed in the clinical use of phosphate therapy to control life-threatening hypercalcemia because of the relative in-effectiveness or toxicity of other modes of therapy (6, 7). I...

Amelogenin proteins, the principal components of the developing dental enamel extracellular matrix, have been postulated to facilitate the elongated and oriented growth of the carbonated apatite crystals during enamel formation. We previously reported that amelogenin caused modulation of apatite crystals nucleated on a bioactive glass (Bioglass(R)) in vitro. Here, the effects of amelogenin on t...

statement of problem: dental caries is one of the most common chronic diseases in children. the balance between demineralization and remineralization of the decayed teeth depends on the calcium and phosphate content of the tooth surface. therefore, if a product such as casein phospho peptides - amorphous calcium phosphate (cpp- acp) which can significantly increase the availability of calcium a...

Hydroxyapatite (HA) coatings have been applied to improve adhesion of non-cemented implants to host bone. Plasma spraying is the most common technique leading to thick calcium phosphate films (>120μm). Pulse laser deposition (PLD), is a possible alternative method to obtain thin (<10 μm), well adherent hydroxyapatite (HA) films. Similarly to synthetic HA, biological apatites contain Ca, PO4 and...

background: this study was done to evaluate remineralizing potential of bioactive glasses (bags)and amorphous calcium phosphate‑casein phosphopeptide (acp‑cpp) on early enamel lesion.materials and methods: twenty freshly extracted mandibular premolars were sectioned sagittally.the buccal half was impregnated in acrylic resin blocks and treated with 37% phosphoric acid inliquid form, to deminera...

background: scuba diving is one of the fastest growing sports in the world. the objective of this study was to evaluate the effect of pressure variations to which divers are exposed on the pull out strength of glass fiber post luted with different cements. materials and methods: in this in vitro study, 120 extracted, single-rooted lower premolars were endodontically treated. they were randomly ...