Objective:To investigate the effects of abutment finish line curvature on fitness of metal ceramic crowns.Methods:Three types of finish line curvatures' abutments were prepared (1 mm-curvature, 3 mm-curvature and 5 mm-curvature). For each type of abutment, ten metal ceramic crowns were fabricated (five for facial-veneered type, five for full-veneered type). Then the fitness of the crowns were evaluated. Results:In as-cast group, both for facial-veneered type and full-veneered type, the greater the finish line curvature was, the larger gaps the mesial and distal margins of copings exhibited. Compared with labial and lingual margins, the mesial and distal margins of copings for 5 mm-curvature crowns in full-veneered type showed significantly larger gaps (respectively 35?8 micrometers and 36?8 micrometers) (P

Objective To investigate the status quo of cancer pain level and cancer pain self-efficacy in the patients with cancer pain and to analyze the influencing factors of cancer pain self-efficacy.Methods The cross sectional investigation was adopted.A total of 200 inpatients with cancer pain in the Affiliated Hospital and Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical University from February to September 2016 were recruited as the respondents by using the convenience sampling method.The questionnaire investigation was performed by adopting the general data questionnaire from,pain degree scale and chro nic pain self-efficacy scale.Results The total score of cancer pain self-efficacy was (45.82±15.47) points,and the score of pain management self-efficacy,symptom coping self-efficacy and somatic function self-efficacy were (10.32 ± 2.93),(17.34 ± 6.22) and (18.16 ± 8.38) points respectively.The five factors of maximal influence degree on cancer pain self-efficacy were the physical exercise situation after illness(| b| =9.96),family economic status(| b| =6.89),maximal pain degree at nearest 24 h(| b | =5.44),average pain degree at nearest 24 h(| b| =4.31) and age(|b| =0.27).Conclusion The cancer pain self-efficacy in the respondents was in the middle-to-low level.The patients with smaller age,good family economic status,usual physical exercise after illness and milder degree in maximal pain within 24 h had higher cancer pain self-efficacy.

Objective:To study the reliability and validity of the Chinese version of the Cancer Empowerment Questionnaire.Methods:In June 2020, the English version of the Cancer Empowerment Questionnaire was translated into Chinese and cross-culturally adapted according to the standard of World Health Organization-Quality of Life. The reliability and validity were tested in 150 hospitalized cancer patients in the Department of Oncology, Affiliated Hospital of Southwest Medical University. The Chinese version was tested in 150 patients for reliability and validity.Results:The Cronbach α coefficient of the total scale and 4 factors were 0.96, and 0.864-0.928. The Guttman Split-Half reliability was 0.884. The test-retest reliability was 0.83. The Chinese version had 40 items. Factor analysis extracted 4 factors, which could explain 56.450% of the total variance. The correlation coefficient between the factors were 0.665-0.837. The HTMT ranged from 0.691 to 0.895.Conclusion:The Chinese version of the Cancer Empowerment Questionnaire has better reliability and validity in the Chinese language environment, which meets the requirements of psychological survey.