ABSTRACT
Objective To establish a 3D finite element model of fixed denture for the preparation of the subsequent study such as biomechanical analysis. Method The computed temography(CT) images were processed by Mimics and Geomagic studio，then the solid model and finite model were established by UG NX. Results A 3D finite element model of fixed denture including alveolar bone, abutment, pericementum and denture were established. Conclusions The use of the initial data of teeth to build finite model can avoid data loss and minimize model distortion to a certain extent, so the 3D finite element model has good similarities in geometry.
ABSTRACT
<p><b>OBJECTIVE</b>To explore the clinical significance of hepatitis B virus large envelope protein (HBV-LP) in diagnosing viral replication, we detected the HBV-LP and HBV DNA in the serum of the patients infected with HBV.</p><p><b>METHODS</b>Serum HBV DNA was detected by fluorescent quantitative PCR (FQ-PCR). HBV-LP was analyzed by enzyme linked immunosorbent assay (ELISA).</p><p><b>RESULTS</b>(1) No significant difference between the detectable rate of HBV DNA and HBV-LP was found in the HBeAg negative patients without of anti-virus treatment. Of all HBeAg negative patients without of anti-virus treatment, the copies of HBV-DNA was related positively to the absorbency HBV-LP. (2) There was significant diference between the detectable rate of HBV DNA and HBV-LP in the HBeAg negative patients after anti-virus treatment.</p><p><b>CONCLUSION</b>There is a perfect correlation between the positive rate of HBV-LP and HBV DNA in the HBeAg negative patients.The HBV DNA is a reliable serological marker that can reflect the replication of HBV in the HBeAg negative patients.</p>