Practice and reflections on the construction of hospital system and procedure under the rounding process / 中华医院管理杂志

Systems and procedures are key to a hospital. How to upgrade hospital quality and medical level with systems and procedures, achieving a consistency among " drafting-practice-presentation" , deserves further attention by hospital administrators. The rounding process used at the hospital is designed to reform and optimize the institutional development. Following the PDCA cycle, the hospital established rounding teams to check the quality compliance, and correct defects found to improve hospital management. Such efforts adapt to conditions of the hospital and help build a closed-loop management model for hospital′s institutional development. Initial success has been observed, as staff compliance of regulations is upgraded, better ensuring medical quality and safety of the hospital.

Extreme root resorption associated with induced tooth movement: A protocol for clinical management

Cases in which teeth have only the cervical third remaining from orthodontically induced external root resorption, cast the following doubts: 1) What care should be taken to keep these teeth in mouth with the least risk possible? 2) What care should be taken with regards to reading of imaging exams, particularly in terms of accurately determining cervical root and bone loss? 3) Why is not endodontic treatment recommended in these cases? The present study aims at shedding light on the aforementioned topics so as to induce new insights into the theme.

Nos casos em que os dentes têm apenas o terço cervical remanescente de uma reabsorção radicular externa induzida ortodonticamente: 1) Quais seriam os cuidados para que permaneçam na boca, com o menor risco possível de perda? 2) Quais seriam os cuidados na interpretação imaginológica desses casos, quanto à determinação precisa da perda radicular e óssea cervical? 3) Por que o tratamento endodôntico não estaria indicado? No presente trabalho, procura-se esclarecer esses pontos e respondendo os questionamentos, para induzir novos insights sobre o assunto.

Clinical convergence angle and rounding radius on tooth preparation for zirconia all-ceramic crown / 대한치과보철학회지

PURPOSE: This article attempted to examine how teeth for restoration is made in a clinical practice and utilize it as future educational material of teeth formation and basic data for additional research. MATERIALS AND METHODS: This experiment investigated the models sent to milling center for production of zirconia crowns. After scanned with Lava CAD/CAM System (3M ESPE, Seefeld, Germany), they are measured on 'ImageJ (version 1.32j, National Institutes of Health, USA)' program and compared and analyzed. Convergence angle from mesio-distal surfaces and bucco-lingual surfaces of each teeth are measured. Also, bucco-lingual diameter of the region lowered as much as 0.4 mm from incisal edge in anterior teeth except canines.(This measure is defined as the Peak 0.4) The analysis of data between each group was conducted by Windows SPSS statistic program, and was proved significant on 95% confidence level by independent t-test, one-way ANOVA and multiple analysis (Sheffe test). RESULTS: The mean value of convergence angle was 18.67degrees. It is ranked as molar (26.70degrees) > premolar (16.87degrees) > anterior teeth (14.81degrees) in the order of mesio-distal convergence angle; anterior teeth (22.32degrees) > molar (20.93degrees) > premolar (15.41degrees) in the order of bucco-lingual convergence angle. The mean value of Peak 0.4 was 1.18 mm. CONCLUSION: Convergence angle of abutment of zirconia all ceramic crown has difference depending on the location in the arch. Due to the nature of production of zirconia all ceramic crown, convergence angle of abutment and line angle finishing degree can have an effect on internal suitability of restoration.

Systems with the integer rounding property in normal monomial subrings

Let C be a clutter and let A be its incidence matrix. If the linear system x > 0; x A < 1 has the integer rounding property, we give a description of the canonical module and the a-invariant of certain normal subrings associated to C. If the clutter is a connected graph, we describe when the aforementioned linear system has the integer rounding property in combinatorial and algebraic terms using graph theory and the theory of Rees algebras. As a consequence we show that the extended Rees algebra of the edge ideal of a bipartite graph is Gorenstein if and only if the graph is unmixed.

Seja C uma desordem (família de Sperner) e seja A sua matriz de incidência. Se o sistema linear x > 0; x A < 1 tem a propriedade do arredondamento inteiro, fornecemos a descrição do módulo canônico e do a-invariante de certos subaneis monomiais associados a C. Se a desordem é um grafo conexo, descreve-se quando o supra-mencionado sistema linear tem a propriedade do arredondamento inteiro em termos combinatórios e algébricos, usando a teoria dos grafos e a teoria das álgebras de Rees. Como consequência, mostra-se que a álgebra de Rees estendida do ideal de arestas de um grafo bipartido é um anel de Gorenstein se e somente se o grafo é de altura pura.

Study on preparation technique of enteric coating Potassium Sodium Dehydroandroan Drographolide Succinate pellets / 中国生化药物杂志

Purpose To build up the Potassium Sodium Dehydroandroan Drographolide Succinate enteric coating sustained-release pellets delivery system by aqueous dispersion coating technique. Methods 1. Adopting MCC as vehicle, SiO_2 as antisticking agent, appropriate amount of 40% ethanol, preparing the core of pellets by extrude-spheronization method and the formulation and manufacturing process were optimized by orthogonal design. 2. Preparing the coating material with Eudragit L 30 D, which is used as pore-forming agent, EC as blocker and PEG6000 as plasticizer. The pellets were coated by fluid-bed coating method. Results 1. The optimal formulation and manufacturing process of pelltes' core were as follows: drug: MCC: SiO_2 = 7:7:5, extruding rate: 1 080 r/min, rounding rate: 960 r/min, rounding time: 5 min. 2. After the addition of EC: Eudragit L = 35:65, the plasticizer is 1.71 % and weight gain is 5% . The release in the gastric model fluid(pH 1.0) < 10% , and complete release ( > 80% ) in the enteric model fluid(pH 6.8) was in two hours. The release behavior accords with the regulations on the release rate of enteric preparation in ChP. Conclusion By adjusting the formulation and the parameters of the process of pellet and coating, we can make enteric coating Potassium Sodium Dehydroandroan Drographolide Succinate sustained-release pellets. All this accords with the regulation of pharmacopedia in vitro release.