Objective:To investigate the masticatory function and the expression of monocyte chemoattractant protein-1 (MCP-1) and tumor necrosis factor-α(TNF-α) in gingival crevicular fluid.Methods:The clinical data of 98 patients with dentition loss admitted to Tongxiang First People′s Hospital from June 2017 to June 2019 were analyzed, and 49 cases were treated with oral implant repair(observation group) and 49 cases were treated with conventional repair(control group). Both groups were followed up for 6 months. The masticatory function, speech function, retention function, quality of life and the changes of MCP-1 and TNF-α in gingival crevicular fluid were compared before treatment and 6 months after treatment.Results:The total effective rate of the observation group was higher than that of the control group: 95.92%(47/49) vs. 79.59%(39/49), and the difference was statistically significant ( χ2=6.078, P<0.05). At 6 months after treatment, the scores of masticatory function, speech function and retention function in the observation group were higher than those in the control group ( P<0.05). The scores of emotional function, social function and physiological function in the observation group were higher than those in the control group ( P<0.05). The levels of MCP-1 and TNF-α in gingival crevicular fluid of the observation group were lower than those of the control group: (32.09 ± 7.65) μg/L vs. (43.62 ± 9.23) μg/L, (2.19 ± 0.38) μg/L vs. (3.20 ± 0.51) μg/L, and the differences were statistically significant ( P<0.05). Conclusions:Dental implant repair is effective for patients with dentition loss, and it can improve masticatory function and quality of life, and reduce the expression of MCP-1 and TNF-α in gingival crevicular fluid.

Objective To evaluate the changes of cerebrospinal fluid dynamics of Chiari malformation type I associated syringomyelia patients with phase-contrast MRI (PC-MRI).Methods Thirty cases diagnosed with Chiari malformation type Ⅰ associated with syringomyelia clinically underwent cisterna plasty treatment.Cerebrospinal fluid dynamics changes were measured before 24 h and 6 months after operation with PC-MRI.The stroke volume (SV),mean flow (MF),regurgitation fractions (RF) and the maximum peak flow velocity (Vmax) were analyzed.Results After operation,PC-MRI showed SV and MF increased,the bidirectional Vmax decreased,which had statistical difference compared with those of preoperation (all P＜0.05),and the C2-3 level was the most obvious.Conclusion PC-MRI can quantitative analysis of preoperative and postoperative changes of cerebrospinal fluid flow and peak velocity.

Objective To analyze the difference of serum levels of anti-Mullenan hormone (AMH) in chil-dren with different ages and different types of cryptorchidism,and to explore its role in the evaluation of tes-ticular development.Methods 60 children with simple cryptorchidism were selected as case group and 52 healthy children were selected as control group.The levels of serum AMH in two groups of children were measured and the differences were compared.Results (1)The level of AMH in the case group was lower than that in control group (P < 0.05),and there was no statistical significance between two subgroups of >6 to 11 years old children with cryptorchidism and healthy children (P>0.05).(2)The level of AMH in bi-lateral cryptorchidism group was lower than that in unilateral cryptorchidism group (P<0.05),and there was no significant difference between two subgroups of >6 to 11 years old children with bilateral cryptorchidism and unilateral cryptorchidism (P>0.05).(3)The level of AMH in the high level cryptorchidism group was lower than that of the low level cryptorchidism group (P<0.05),and there was no statistical difference be-tween between two subgroups of 3~11 year old children with cryptorchidism and low level cryptorchidism (P>0.05).(4)AMH level was negatively correlated with age,and positively correlated with testicular devel-opment.Conclusion AMH can be used as an important indicator of testicular development in children with cryptorchidism.