[Accuracy evaluation of recording maxillomandibular relation with the mandibular kinesiography].

Purpose: To evaluate the accuracy of recording maxillomandibular position relationship with the mandibular kinesiography by surface electromyography analysis of the masticatory muscles and MRI of temporomandibular joint (TMJ).

Methods: Eight edentulous patients were selected randomly, and the maxillomandibular position relationship was determined by mandibular kinesiography and traditional method respectively. Then the corresponding bite plates were made to wear.

[Fracture resistance of endodontically treated maxillary premolars restored with different CAD/CAM all-ceramic restorations].

Purpose: This study was to evaluate the fracture resistance of endodontically treated maxillary premolars restored with different CAD/CAM all-ceramic restorations in vitro.

Methods: Mesio-occluso-function tip(MOF) cavities were prepared in 21 extracted human maxillary premolars due to endodontic treatment. The teeth were divided into 3 groups.

[Effect of ball attachments with different materials on retention of mandibular implant supported overdenture].

Purpose: To investigate the effect of ball attachments with different materials on retention of mandibular implant supported overdenture.

Methods: The experimental groups were divided into group A (titanium ball / titanium cap group) and group B (titanium ball / golden cap group), each group had 3 samples. A standard mandibular edentulous model was made, and the implants (4.

[Comparison of the cytotoxicity in vitro among six types of nano-silver base inorganic antibacterial agents].

Objective: To evaluate the biocompatibility of nano-silver base inorganic antibacterial agents and compare the cytotoxicity in vitro among six types of nano-silver base inorganic antibacterial agents.

Methods: FUMAT T200-4, HN300, Novaron, Kangwang, MOD and SR1000 were diluted to different concentrations, such as 100 g/L, 50 g/L, 25 g/L and 12.5 g/L.

[The influence of cerebral blood flow of volunteers with magnetic attachment measured by transcranial Doppler].

Purpose: To investigate the influence of cerebral blood flow of volunteers with magnetic attachment.

Method: The mean flow velocity of the middle cerebral arteries (MCA) of 24 volunteers with magnetic attachment denture were measured by transcranial Doppler (TCD). All data were analyzed by SPSS10.

[Comparison of the antibacterial activity on oral pathogens among six types of nano-silver base inorganic antibacterial agents].

Objective: To Compare the antibacterial activity on oral pathogens among six types of nano-silver base inorganic antibacterial agents.

Methods: The oral pathogens selected were Streptococcus mutans(ATCC6715),Lactobacillus (ATCC4356),Actinomyces viscosus (ATCC19246), Candida Albicans (ATCC76615), Staphylococcus aureus (ATCC25923), Escherichia coli (ATCCC25922). Minimal bactericidal concentration (MBC) was determined by Liquid dilution method.