Characterization of Polyvinyl Alcohol-Collagen-Hydroxyapatite Composite Membrane from Lates calcarifer Scales for Guided Tissue and Bone Regeneration.

Objective:  To determine the chemical structure, tensile strength, porosity, and degradability of polyvinyl alcohol (PVA)-collagen-hydroxyapatite (HA) composite membranes for guided tissue and bone regeneration.

Materials And Methods:  The PVA-collagen-HA composite membrane was divided into three groups: the group without irradiation, the group with 15 kGy irradiation, and 25 kGy irradiation. Each group was tested for chemical structure with Fourier-transform infrared (FT-IR) at a wavelength of 400 to 4,000 cm.

Remineralization and antibacterial/antibiofilm effects of toothpaste containing nanohydroxyapatite and extract.

The aim of this study was to evaluate the effect of nanohydroxyapatite (nanoHAP) and () toothpastes on tooth remineralization and antibacterial/antibiofilm activity. Remineralization was evaluated by the morphological changes in extracted human premolar teeth following toothpaste application. The antibacterial and antibiofilm activities were evaluated by agar diffusion and microdilution methods, respectively, against .