Hong-hai Yan

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PURPOSE To assess the efficacy of intraoral open reduction of mandibular body fracture using titanium miniplate rigid fixation and intermaxillary traction titanium screw to rigidly tract the jaw during the operation. METHODS 54 mandibular fractures in 45 patients were included in this study. After general anaesthesia, the intermaxillary traction titanium(More)
PURPOSE The purpose of this study was to evaluate and compare the friction and abrasion of six kinds of dental materials that was widely used clinically. The mechanisms were investigated to provide experimental reference for selecting proper restorative material to protect opposite natural enamel of the patients. METHODS In the experimental groups,pure(More)
PURPOSE To investigate the clinical effects of combined multiloop Edgewise arch wire(MEAW) with protraction facemask to treat Class III malocclusion in early permanent dentition, and compare the changes of the periodental tissue and teeth between pre- and post- treatment to explore the mechenism of the method applied to correct Class III malocclusion. (More)
PURPOSE To study the effect of Salvia Miltiorrhiza Bunge on the expression of osteoprotegerin (OPG) in cultured human periodontal ligament fibroblasts. METHODS Primary culture of human periodontal ligament fibroblasts was established and the fifth passage cells were used in this study. Concentration-dependent effect of Salvia Miltiorrhiza Bunge on OPG(More)
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