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In modern dentistry and maxillofacial surgery, for replacement and reconstruction of bone tissue, different materials are used. The demand for bone substitute materials has increased in recent years due to increased number of road and rail accidents, loss of teeth due to poor nutrition and stress, the emergence of new trauma and tumors, and bone reconstructive surgery due to development. The aim of...
Collagen: hidroxyapatite and collagen: betatricalcium compositions were prepared by lyophylization and spongious composites for regeneration of bone defects were obtained. The spongious composites were characterized by Fourier transform infra-red (FT-IR) spectroscopy, scanning electron microscopy (SEM) and enzymatic degradation by collagenase. The results showed spongious composites with interconected...
Electrophoretic deposition (EPD) was used to prepare hydroxyapatite (HA) coatings on titanium. The influence of suspension pH on the formation of cracks in coatings was studied. Results show that the pH of suspensions plays an important role in the EPD of HA coatings and cracks in the green coatings were minimized at pH 2.9. Biomimetic mineralization and self-assembled collagen were developed to modify...
In this study, we demonstrate a high quality beam delivery using a flexible small-core hollow fiber and the ablation processing of hydroxyapatite (HAp) and collagen with fs double pulses through a bending hollow fiber. HAp is a main component of bones and teeth. We adopted two new methods: One is the use of a hollow fiber with a 320-mum core diameter in order to improve the output beam intensity profile...
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