Objective A study of the therapeutic effect of the treatment of biceps brachii spasticity in hemiplegic patients with stroke by radial extracorporeal shock wave therapy combined with spastic muscle electrical stimulation.Methods Select 98 cases of biceps spasticity hemiplegic patients admitted and intervened in rehabili-tation in the Zhongshan Hospital Xiamen University from June 2022 to June 2024,and randomly assign the patients to two different groups,each with 49 cases,using a random method.The controlled group received spastic muscle electrical stimulation treatment for the affected upper limb biceps(the"Controlled Group"),while the observa-tion group received radial extracorporeal shock wave therapy combined with spastic muscle electrical stimulation treatment(the"Observation Group").After two months of intervention,the changes in muscle tone,activities of daily living,quality of life,improvement in motor function performance,as well as rehabilitation satisfaction and compliance were compared between the two groups.Results After the intervention,the modified Barthel index and the upper limb FMA scores of the Controlled Group were lower than those of the Observation Group(P<0.05);the muscle tone assessment MAS scale score of the Controlled Group was higher than that of the Observation Group(P<0.05);the rehabilitation satisfaction and compliance of the Controlled Group were lower than those of the Observation Group(P<0.05);the quality of life scores in all aspects of the Controlled Group were lower than those of the Observation Group(P<0.05).Conclusion The application of radial extracorporeal shock wave therapy combined with spastic muscle electrical stimulation treatment in treating biceps spasticity in hemiplegic patients with stroke can reduce the muscle tone of the patient′s biceps,alleviate spasticity,enhance the patient's motor performance and self-care ability,as well as improve their overall quality of life,and there is no concomitant medication,which is highly safe and worth promoting.

Objective A study of the therapeutic effect of the treatment of biceps brachii spasticity in hemiplegic patients with stroke by radial extracorporeal shock wave therapy combined with spastic muscle electrical stimulation.Methods Select 98 cases of biceps spasticity hemiplegic patients admitted and intervened in rehabili-tation in the Zhongshan Hospital Xiamen University from June 2022 to June 2024,and randomly assign the patients to two different groups,each with 49 cases,using a random method.The controlled group received spastic muscle electrical stimulation treatment for the affected upper limb biceps(the"Controlled Group"),while the observa-tion group received radial extracorporeal shock wave therapy combined with spastic muscle electrical stimulation treatment(the"Observation Group").After two months of intervention,the changes in muscle tone,activities of daily living,quality of life,improvement in motor function performance,as well as rehabilitation satisfaction and compliance were compared between the two groups.Results After the intervention,the modified Barthel index and the upper limb FMA scores of the Controlled Group were lower than those of the Observation Group(P<0.05);the muscle tone assessment MAS scale score of the Controlled Group was higher than that of the Observation Group(P<0.05);the rehabilitation satisfaction and compliance of the Controlled Group were lower than those of the Observation Group(P<0.05);the quality of life scores in all aspects of the Controlled Group were lower than those of the Observation Group(P<0.05).Conclusion The application of radial extracorporeal shock wave therapy combined with spastic muscle electrical stimulation treatment in treating biceps spasticity in hemiplegic patients with stroke can reduce the muscle tone of the patient′s biceps,alleviate spasticity,enhance the patient's motor performance and self-care ability,as well as improve their overall quality of life,and there is no concomitant medication,which is highly safe and worth promoting.

Objective: To investigate different Er:YAG laser power settings on the bonding properties of IPS e.max CAD ceramics. Methods : 96 IPS e.max CAD ceramics blocks (5 mm × 5 mm × 5 mm) were prepared and randomly divided into 8 groups (n = 12), the untreated blocks served as the control, while one of the experimental groups was treated with 4.5% HF for 20 seconds, six remaining test group (C、D、E、F、G、H) were treated with different Er: YAG laser power settings: 100 mJ、200 mJ、300 mJ、400 mJ、500 mJ and 600 mJ. Morphology of the ceramic surface was observed by atomic force microscopy and its shear bond strength (SBS) was tested. Results : Higher shear bond strength values were found in group C-H compared to group B, the highest is group F (24.12 ± 1.91) MPa. The difference was statistically significant. The atomic force microscope observation of the surface structure showed that the control group was smooth and flat, and the HF-like etching group formed a uniform needle-like convex structure. The laser group gradually formed a regularly arranged cylindrical convex structure, in which the surface of the G and H groups was damaged. Conclusion The Er: YAG laser power settings of 400 mJ can be used as an effective pretreatment method before bonding of IPS e.max CAD ceramic.