The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika最新文献_第7页

A guide to successful dental practice. Chapter Seven: Financial management of the practice. Am I winning or losing? 成功的牙科实践指南。第七章:财务管理的实践。我是赢了还是输了?

The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika Pub Date : 1997-04-01

D Abramson

引用次数: 0

The National Commission on Higher Education. 国家高等教育委员会。

The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika Pub Date : 1997-04-01

J Reddy

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Multi-planar and cross-sectional oblique scanning (CT) in implant surgery. 多平面和横断斜位扫描(CT)在种植体手术中的应用。

The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika Pub Date : 1997-04-01

J F Lownie, M A Lownie, A G Payne, T N Skinstad

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Marginal seal composition in amalgam restored teeth of varying marginal leakage. 不同边缘泄漏汞合金修复牙的边缘密封成分。

The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika Pub Date : 1997-03-01

E S Grossman, M J Witcomb, J M Matejka

{"title":"Marginal seal composition in amalgam restored teeth of varying marginal leakage.","authors":"E S Grossman, M J Witcomb, J M Matejka","doi":"","DOIUrl":"","url":null,"abstract":"An in vitro study was performed to ascertain the marginal seal elemental composition of amalgam restored extracted teeth of known marginal leakage. Occlusal cavities were cut in 400 caries free extracted teeth and left unlined or lined with one of 5 bases. A varnish was applied to half the cavities followed by restoration with a low copper or high copper amalgam to produce 20 restoration combinations. The teeth were stored in 1 per cent NaCl and thymol for 3 and 12 months at 20 degrees C whereafter a standard fluorescent dye marginal leakage test was performed on 320 specimens (eight teeth per treatment). Restoration combinations were grouped into 4 seal classes depending on percentage marginal seal achieved for each combination: 0-25 per cent; 26-50 per cent; 51-75 per cent and 76-100 per cent. The 80 remaining teeth (2 teeth per treatment) were fractured to expose the restoration and cavity surface, covered with marginal seal material and this was analysed by energy dispersive X-ray analysis. Elemental seal composition was compared to percentage marginal seal achieved using ANOVA and Tukey's test with significance set at p < 0.05. Numbers of elemental analysis specimens falling into each marginal seal class was 0-25 per cent = 48; 26-50 per cent = 18; 51-75 per cent = 10; 76-100 per cent = 4. Of the 16 elements detected, nine were significantly linked to sealing/leakage: Ca, Cl, Cu, Mg, Hg, P, Ag, Sn and Zn. The findings have a bearing on the improved longevity of amalgam restorations.","PeriodicalId":76669,"journal":{"name":"The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika","volume":"52 3","pages":"157-64"},"PeriodicalIF":0.0,"publicationDate":"1997-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20388364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Maxillo-facial and oral surgery and dentistry. 颌面、口腔外科和牙科。

The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika Pub Date : 1997-03-01

P J Stoelinga

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Total endodontic treatment and retreatment: a case report. 全根管治疗及再治疗1例。

The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika Pub Date : 1997-03-01

J T Marais

引用次数: 0

Bonding of composite resin using different enamel etchants. 不同珐琅腐蚀剂对复合树脂的粘接。

The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika Pub Date : 1997-03-01

P J van der Vyver, F A de Wet, J M Jansen van Rensburg

{"title":"Bonding of composite resin using different enamel etchants.","authors":"P J van der Vyver, F A de Wet, J M Jansen van Rensburg","doi":"","DOIUrl":"","url":null,"abstract":"Bonding systems make use of different types and concentrations of enamel etchants. The purpose of this in vitro investigation was to determine the shear bond strength of composite resin to etched enamel using different enamel etchants. The following etchants were used: 35 per cent phosphoric acid for 30 seconds, (Group 1, control), 10 per cent phosphoric acid for 20 seconds (Group 2), 10 per cent maleic acid for 15 seconds (Group 3), 65 per cent phosphoric acid for 30 seconds (Group 4) and 10 per cent citric acid/3 per cent ferric chloride for 30 seconds (Group 5). Composite (Z100) stubs were bonded to the adhesively treated etched enamel surfaces using a rubber split mould. The bonded specimens were stored in distilled water for 24 hours before they were stressed to failure using a shear load in an instron testing machine. Data were analysed statistically (Student-t-test). The micromorphology of the enamel etched with the different etchants was also evaluated in a SEM. Shear bond strength (MPa) for the different groups were as follows: group 1 (23.9), group 2 (18.9), group 3 (18.0), group 4 (20.4) and group 5 (15.6). Ten per cent maleic acid, 10 per cent phosphoric acid and 10 per cent citric acid/3 per cent ferric chloride demonstrated lower enamel bond strengths than conventional 35 per cent phosphoric acid.","PeriodicalId":76669,"journal":{"name":"The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika","volume":"52 3","pages":"169-72"},"PeriodicalIF":0.0,"publicationDate":"1997-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20388366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Dentists and cross-infection. 牙医和交叉感染。

The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika Pub Date : 1997-03-01

S Naidoo

{"title":"Dentists and cross-infection.","authors":"S Naidoo","doi":"","DOIUrl":"","url":null,"abstract":"A structured questionnaire was administered to a random sample of general dental practitioners in Natal, South Africa in 1994, to ascertain the precautions they use against cross-infection and to gauge the attitudes and behaviour towards the treatment of HIV-infected individuals. An interview was conducted covering 5 broad topics: demographic details, personal barrier protection, instrument sterilization and disinfection, sharps disposal and incidence of needlestick injuries and the extent of the knowledge, attitude and behaviour of the practitioners toward the treatment of HIV-infected individuals. The key findings were: routine glove wearing, for all patients, was practised by 87 per cent. The most common heat sterilization method was by autoclave (68 per cent), although a dry heat sterilizer and water boiler were used by 22 per cent of the respondents. Of the 18 respondents reporting a needlestick injury in the past 6 months only one sought after-care. 42 per cent of the respondents would continue to treat carriers of HIV in their practices. This survey shows that a significant number of dentists are using unacceptable cross-infection control procedures. Educational efforts should be made to improve their knowledge and to alleviate anxiety of health workers to treat HIV-infected patients.","PeriodicalId":76669,"journal":{"name":"The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika","volume":"52 3","pages":"165-7"},"PeriodicalIF":0.0,"publicationDate":"1997-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20388365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Universal precautions and pathways of infection. 普遍的预防措施和感染途径。

The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika Pub Date : 1997-03-01

R Woods

引用次数: 0

The dental profession, industry and trade: regulations and standards--a global challenge! 牙科行业、行业和贸易:法规和标准——全球挑战!

The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika Pub Date : 1997-02-01

F Herbst, G Babos

引用次数: 0