OBJECTIVETo study the characteristics of the arch form of skeletal Class III malocclusion and provide references for diagnosis and treatment plan.

METHODS7 indexes in dental casts of 47 patients with skeletal Class III malocclusion and 50 individuals with normal occlusion were measured respectively. And differences between corresponding upper and lower measurements were calculated. Independent samples t-test was employed for comparing between the two groups by SPSS 17.0.

RESULTSCompared with normal occlusion sample, Class III malocclusion group had smaller anterior segment lengths and larger canine angles (P<0.05). Differences between upper and lower first premolar widths were larger in males with skeletal Class III malocclusion. And differences between upper and lower anterior segment lengths were smaller in males with skeletal Class III malocclusion (P<0.05).

CONCLUSIONArch widths of patients with skeletal Class III malocclusion are basically normal. The lengths of anterior segment are smaller and the anterior arch forms are straighter.

Bicuspid ; Dental Arch ; Dental Occlusion ; Female ; Humans ; Male ; Malocclusion, Angle Class II ; Malocclusion, Angle Class III

Objective To explore the clinical significance of the ratio of descending aorta diameter to ascending aorta diameter (rDA) in rapid diagnosis of Stanford B aortic dissection (AD). Methods A total of 118 patients with chest pain admitted to the emergency department from January 2013 to June 2018 in the People′s Hospital of Longhua were selected,and 42 patients with Stanford B type AD (group A) and 76 patients without AD (group B) were diagnosed by CT angiography.Eighty healthy people in the same period were selected as control group (group C). The descending aorta diameter and ascending aorta diameter were measured and rDA was calculated. The receiver operating characteristic curves were made. The sensitivity and specificity of descending aorta diameter and rDA for predicting Stanford B-type AD were analyzed. Results The descending aorta diameter, ascending aorta diameter and rDA in group A (male and female) were significantly higher than those in group C (male and female), while the descending aorta diameter and rDA in group A (male and female) were significantly higher than those in group B (male and female) (P<0.05). The sensitivity and specificity of descending aorta diameter with 30.0 mm as the cut-off point for the diagnosis of Stanford B-type AD were 92.9%(39/42),82.9%(63/76), and those of rDA with 0.8 as the cut-off point for Stanford B-type AD were 95.2%(40/42),90.8%(69/76). Conclusions The descending aorta diameter and rDA can be used as indicators for rapid diagnosis of Stanford B-type AD, and rDA is better than the diameter of descending aorta.

Objective To study the application value of comprehensive nursing intervention for acute respiratory failure patients with non-invasive ventilation.Methods A total of 86 acute respiratory failure patients with non-invasive ventilation in our hospital randomized into study group and control group with 43 cases in each group.The study group applied comprehensive nurs-ing intervention and control group used routine nursing.The treatment efficacy of two groups was compared.Results The treatment compliance in the study group was better than that in the con-trol group(P <0.05),the fear degree and incidence of complications in the study group were lower than that in the control group (P <0.05).Conclusion Comprehensive nursing intervention could reduce fear and incidence of clinical complications and greatly improve patients′compliance in acute respiratory failure patients with noninvasive ventilation.

Objective To study the application value of comprehensive nursing intervention for acute respiratory failure patients with non-invasive ventilation.Methods A total of 86 acute respiratory failure patients with non-invasive ventilation in our hospital randomized into study group and control group with 43 cases in each group.The study group applied comprehensive nurs-ing intervention and control group used routine nursing.The treatment efficacy of two groups was compared.Results The treatment compliance in the study group was better than that in the con-trol group(P <0.05),the fear degree and incidence of complications in the study group were lower than that in the control group (P <0.05).Conclusion Comprehensive nursing intervention could reduce fear and incidence of clinical complications and greatly improve patients′compliance in acute respiratory failure patients with noninvasive ventilation.

Objective To investigate the current situation and correlation of cognitive dysfunction, activities of daily living (ADL) and quality of life in patients with traumatic brain injury (TBI). Methods A total of 148 patients hospitalized in the Rehabilitation Department of the Second Affiliated Hospital of Kunming Medical University from January to December 2016 were included in this study. The Montreal cognitive assessment scale (MoCA),modified Barthel Index scale (MBI) and WHO quality of life scale (WHO-QOL) were used to investigate the status of patients with traumatic brain injury. Results There were 78 of 148 patients with cognitive dysfunction and the incidence rate was 52.98%. Cognitive dysfunction after TBI was significantly positively related to the ADL ability (r=0.968,P<0.01);the visual space and executive function,attention,abstraction,delayed recall and orientation had the prediction effect on the ADL ability. Cognitive dysfunction after TBI was significantly positively related to the quality of life (r=0.973,P<0.01);cognitive items except the name could predict the quality of life. Conclusions There is a high incidence of cognitive dysfunction in patients with traumatic brain injury,which can affect their ADL ability and quality of life. It is necessary to take effective measures to improve the rehabilitation training of the cognitive function in early stage.