Objective: To evaluate the application effect of the platform switching implants in maxillary anterior region, to explore the effect of platform switching technology on the surrounding tissues. Methods: 55 patients with 60 single maxillary anterior implants were divided into two groups: platform-switching implants group (Ankylos), 25 patients with 28 implants; butt-joint implants group (Nobel Replace), 30 patients with 32 implants. The patients received follow-up care more than 1 and 2 year after the final setting of the prosthesis, at which time periapical radiographs were taken. The marginal bone level around the implant and Pink Esthetic Score (PES) were measured for comparison. Results : The average marginal bone changes of platform-switching implants after 1 year and 2 year were (-0.41 ± 0.36) mm and (-0.55 ± 0.33) mm respectively; and the ones of butt-joint implants were (-1.77 ± 0.54) mm and (-1.82 ± 0.61) mm. The average PES of platform- switched implants after 1 year and 2 year were 10.43 ± 1.37 and 10.32 ± 1.21 respectively; the ones of butt-joint implants were 9.21 ± 0.97 and 9.16 ± 0.95. There were significantly differences of marginal bone changes and PES between both groups (P < 0.05). Conclusion Platform switching implant in the maxillary aesthetics area is more effective in preserving the surrounding bone tissue and aesthetic effect.

Objective To investigate the current status of application of the Confusion assessment method for the Intensive Care Unit (Cam-ICU),and to explore its influencing factors.Methods A total of 300 patients admitted to were enrolled.The researchers and nurses used Cam-ICU to assess patients' delirium,respectively,and the differences in deliriun assessment were analyzed.Results For delirium assessment,the Kappa value was 0.546 between the researchers and nurses.The consensus rate was 17.6％ for hypoactive delirium,and 77.8％ for hyperactive delirium in 44 delirium patients.Logistic regression analysis showed that APACHE Ⅱ score,RASS score and delirium type were influencing factors of accurate assessment of delirium.Conclusion The consistence of assessment of delirium by ICU nurses is generally good,but the accuracy of assessment of hypoactive delirium is the worst.

Objective To investigate doctors' and nurses' perceptions and implementation of delirium management in intensive care unit. Methods A total of 197 doctors and nurses in 2 general ICUs and 3 special ICUs at Peking Union Medical College Hospital finished a self-designed questionnaire of delirium management. Results There were 47 males and 150 females, 43 doctors and 154 nurses who participated in the survey.One hundred and twenty five participators were from general ICU and the others from special ICU. The ICU staff had a significant difference on the perceptions and implementation of delirium management(P< 0.001) including. Doctors and nurses scored lowest in"family engagement and empowerment"and"sleep management"with (4.620 ± 2.393) and (5.430 ± 2.153) respectively. There was a significant difference between nurses and doctors in the management of analgesia and sedation (P< 0.05). Doctors and nurses from different ICUs had significant discrepancy in the implementation of"delirium assessment"(P<0.05). Conclusions The ICU staff should improve the perceptions and the implementation of delirium management,especially in special ICUs. Delirium management should be included as a routine care in ICU to improve patients' outcome.

Objective:By building a patient safety oriented nursing-sensitive indicator system, this study aimed to help clinical evaluation and nursing for patients in prone position, to constantly optimize management of prone position and promote patient safety.Methods:First drew up initial indicators through literature search and personal interviews, then modified and finally formed the prone position nursing indicators within two rounds of experts consultation. Verified the indicators by evaluating nursing staff satisfaction after half-year′s implementation.Results:Finally, the indicator system included 9 first level, 13 second level and 71 third level indicators. The reliability of experts and the satisfaction of nurses were both high.Conclusions:With the purpose of patient safety, the nursing indicator system of prone position ventilation for critically ill patients are comprehensively covered ever aspect of key component. Specific effect needs to be further verified in the hospital management practice.