The durability of denture base resins with a new type of organic-inorganic hybrid coating was examined after long-term water im-mersion.After water immersion for 1 80 days at constant temperature of 37 ℃ the flexural strength and elastic modulus of the samples with the coating were qualified with the national standerds,the controls were not.

As suggested by regulatory feedbacks from relevant national regulatory agencies on the use of medical insurance funds, noticeable problems were found in the compliance and rationality of medical service charges among Chinese hospitals. Based on the practice of hospital management, the authors summarized common problems of various medical service charge management as reported by the management authorities at all levels. These problems referred to name-replaceable charges and affiliated charges, splitting charges, repeated charges, and multiple(false) charges. On this basis, the paper analyzed such hospital management risks incurred as regulatory penalties, fee disputes and medical disputes, as well as their internal and external causes. In the end, the paper put forward countermeasures and suggestions for reference by hospitals in their management of medical service charges.

Medical insurance fund is the foundation for the healthy operation of the medical insurance system, which is related to the well-being of the people and social stability. Medical institutions, as important entities in the implementation of medical insurance policies and the use of medical insurance funds, should continuously improve and optimize their self-management, and strengthen the prevention and control of clean risks in the use of medical insurance funds. This is not only a necessary response measure in the context of strict supervision of national medical insurance funds, but also an inevitable choice for hospitals under the trend of high-quality development. This article took a certain hospital as an example to illustrate the practice of sorting out the relevant authority directory for the use of medical insurance funds, analyze the integrity risk points of doctors, patients, and medical insurance reimbursement auditors; And introduced the practice of using a clean risk prevention and control grid to strengthen the hospital′s medical insurance fund, including improving the medical insurance management system, cultivating a sustainable culture of integrity, optimizing process design, improving information system construction, and improving medical insurance service modes, so as to provide reference for other medical institutions.

OBJECTIVE To review economic studies of diabetes drugs in Chinese population systematically ，and to provide reference for promoting the development of pharmacoeconomics research in the field of diabetes and improving the research quality. METHODS Retrieving from PubMed ，Embase，SinoMed，CNKI，Wanfang data ，VIP and other databases ，the literatures on economic evaluation of diabetes drugs in Chinese population were collected ；analysis was carried out on the publication ，research content，study design of the literatures. The Consolidated Health Economic Evaluation Reporting Standards 2013（CHEERS 2013） checklist was used for quality evaluation. RESULTS A total of 380 literatures were included ，involving 348 Chinese literatures and 32 English literatures. The first paper of diabetes drugs in Chinese population was published in 2001. The most evaluated drug was metformin. Most of the studies （79.2％）were conducted by medical institutions ，73.9％ of the studies were short-term economic evaluation，and the methods were mainly cost-effectiveness analysis （61.8％），and most of the studies did not reported clear research perspectives （82.6％）. Evaluated by CHEERS 2013，the average score of included literatures was only 10.57，and 85.8％ of the literatures was of unqualified quality. The average score of Chinese literatures was 10.05，that of English literatures was 16.23，and the reporting quality of English literatures was significantly better than that of Chinese literature s（P＜0.001）. CONCLUSIONS The existing literatures on the economic evaluation of diabetes drugs in Chinese population is of low quality. There are problems such as lack of research perspectives ，single research institution/method ，and non-standard reporting. It is recommended that medical institutions ，universities/research institutions ，enterprises，government and other institutions should strengthen cooperation ，improve their research level ，pay attention to more and newer clinically effective treatment regimens ，and promote the transformation of research results into decision-making evidence.

OBJECTIVE To provide reference for the prevention and treatment of hepatitis C and the formulation and improvement of medical insurance payment policy for direct-acting antiviral （DAA） drugs. METHODS An questionnaire survey was conducted among the patients who received hepatitis C treatment in a third-grade class-A hospital in Sichuan province from 2019 to 2020 and enjoyed Chengdu medical insurance policy. The patients’ hepatitis C treatment and satisfaction with the medical insurance policy for DAA drugs were compared before and after DAA drugs were included in the medical insurance list. RESULTS A total of 203 patients effectively responded among 644 investigated patients. In terms of treatment plans， although there were significant differences in the treatment plan between patients who saw a doctor in 2019 and 2020 （P＜0.05）， the vast majority of patients were cured within the course of treatment （200 cases， 98.52%）， and there were no obvious adverse reactions （193 cases， 95.07%）. In terms of economic burden， the out-of-pocket costs and economic burden of patients treated with DAA drugs in 2020 were significantly lower than those treated with DAA drugs in 2019 （P＜0.05）； in terms of patient services， 78.82% of patients received expert consultation services from designated medical institutions， but 9.85% of patients still did not receive any patient services provided by the hospital. In terms of satisfaction with outpatient reimbursement policy， the overall satisfaction of patients who saw a doctor in 2020 （95.37%） was significantly higher than those who saw a doctor in 2019 （81.05%）（P＜0.05）. CONCLUSIONS The surveyed patients with hepatitis C obtain good efficacy after DAA drugs treatment， and are satisfied with the medical insurance policy of DAA drugs， but the standardized management of patient services in designated medical institutions is insufficient.