Publications by authors named "Jun-hui Zhai"
[Histomorphological effects of Nd:YAG laser for debonding ceramic brackets on rabbit pulp].
Hua Xi Kou Qiang Yi Xue Za Zhi
August 2009
Objective: Ceramic brackets debonding by Nd:YAG laser is based on the thermal effect of laser, which may cause injury of the pulp tissue. In this study, the histological changes of pulp tissue that subjected to Nd: YAG laser irradiation with different power and time were observed.
Methods: 20 New Zealand rabbits were included in this study.
Objective: To develop a new sampling medium for detecting of bioaerosols.
Methods: The sampling media were tested by using Escherichia coli, Staphylococcus aureus and Serratia marcescens under static and active conditions, preliminary applications were performed using AGI-10 and high volume sampler.
Results: The average recovery rates were raised to 24.
Genetic variations in the pgm locus among natural isolates of Yersinia pestis.
J Gen Appl Microbiol
February 2005
Article Synopsis
- * A specific gene related to a two-component regulatory system became a pseudogene in biovar Orientalis due to a deletion, while remaining intact in other biovars; additionally, some strains retained a transmembrane helix not found in others due to an 18 bp deletion.
- * Unique insertion patterns of IS100 and IS285 elements in certain strain foci suggest that these strains belong to an older lineage of Y. pestis, contributing to the stability and distinct genetic characteristics of the pgm
[Comparison on shear bond strength of Edgewise brackets bonding with three orthodontic adhesives against salivary contamination].
Shanghai Kou Qiang Yi Xue
December 2003
Objective: To compare the shear bond strength and ARI score of Edgewise brackets bonding with three adhesives under moist and dry conditions after salivary contamination.
Methods: Sixty extracted human premolars were randomly and equally divided into 3 groups. Edgewise brackets were bonded directly with composite resin, super bond C&B and single component adhesive under moist and dry conditions after salivary contamination.