发布求助
文献互助 智能选刊 最新文献

Scandinavian journal of dental research最新文献

筛选
英文 中文
Resin bond to electrolytically etched cobalt-chromium alloys. 树脂结合电解蚀刻钴铬合金。
Scandinavian journal of dental research Pub Date : 1987-02-01
M Jokela-Hietamäki, T Rantanen
{"title":"Resin bond to electrolytically etched cobalt-chromium alloys.","authors":"M Jokela-Hietamäki,&nbsp;T Rantanen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Disks of four cobalt-chromium alloys were electrolytically etched and bonded together using a microfilled restorative resin. The bonds of the resin to two of the tested alloys, Bondi-loy and Vitallium, showed tensile strengths of approximately 18 MPa. The bonds were significantly stronger than those obtained using the other two alloys, Dentitan and Novarex. The tensile bond strengths of etched Dentitan and Novarex were 5.3 and 7.5 MPa respectively. The etched and debonded surfaces were studied in SEM.</p>","PeriodicalId":21511,"journal":{"name":"Scandinavian journal of dental research","volume":"95 1","pages":"82-6"},"PeriodicalIF":0.0,"publicationDate":"1987-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14673277","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
Influence of cations on enamel phosphatase activity. 阳离子对釉质磷酸酶活性的影响。
Scandinavian journal of dental research Pub Date : 1986-12-01
D Moe, E Salling, S Kirkeby
{"title":"Influence of cations on enamel phosphatase activity.","authors":"D Moe,&nbsp;E Salling,&nbsp;S Kirkeby","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>ATP and 5-Br-4-Cl-indoxyl phosphate were used as substrates for spectrophotometric measurement of phosphatase activity in partly mineralized bovine enamel. MgCl2, CaCl2, NaCl, and KCl were used as moderators of the enzyme activities. It is concluded that at least two phosphatases, active at alkaline pH, are present in the immature enamel matrix.</p>","PeriodicalId":21511,"journal":{"name":"Scandinavian journal of dental research","volume":"94 6","pages":"479-82"},"PeriodicalIF":0.0,"publicationDate":"1986-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14160551","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
Intraoral bacterial growth on tetracycline-impregnated dentin. 四环素浸渍牙本质的口腔内细菌生长。
Scandinavian journal of dental research Pub Date : 1986-04-01
K Bjorvatn, N Skaug
{"title":"Intraoral bacterial growth on tetracycline-impregnated dentin.","authors":"K Bjorvatn,&nbsp;N Skaug","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Previous studies have shown that tetracyclines react with enamel and dentin in vitro to form slightly soluble compounds with a pronounced and long-lasting antimicrobial capacity. The purpose of the present project was to study the effect of doxycycline-impregnation of dentin on the growth of oral microorganisms in vivo. Slabs of native human dentin were immersed in aqueous solutions of doxycycline HCl, 10 mg/ml, for 10 min, and were subsequently ligated to orthodontic brackets placed bucally on maxillary molars in seven individuals. Untreated native dentin specimens were similarly placed on contralateral teeth. Test and control specimens were removed from the oral cavity after 2 h, 24 or 120 h, respectively. The individual specimens were then placed in 0.5-ml saline and agitated mechanically for 30 s. The resulting bacterial suspensions were plated onto blood agar and various selective growth media. Based on CFU-counts obtained after incubation of the plates, doxycycline-treated dentin specimens showed a significantly lower number of viable microorganisms after 2 h and 24 h in the oral cavity than did the control specimens. The bacterial growth was also less pronounced in the test specimens after 120 h. The effect of doxycycline was similar for all the cultivable bacteria. No significant difference in yeast growth was seen between test and control specimens.</p>","PeriodicalId":21511,"journal":{"name":"Scandinavian journal of dental research","volume":"94 2","pages":"95-101"},"PeriodicalIF":0.0,"publicationDate":"1986-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14581054","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
Electron probe microanalysis of radiopaque material in giant tubules in a human incisor. 人类门牙巨管中不透射线物质的电子探针微量分析。
Scandinavian journal of dental research Pub Date : 1985-12-01
E Hals, B Tötdal
{"title":"Electron probe microanalysis of radiopaque material in giant tubules in a human incisor.","authors":"E Hals,&nbsp;B Tötdal","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":21511,"journal":{"name":"Scandinavian journal of dental research","volume":"93 6","pages":"565-8"},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14985303","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
Symposium on plaque ecology and dental diseases. 23rd-26th August 1984, Oslo. 牙菌斑生态学与牙病研讨会。1984年8月23日至26日，奥斯陆。
Scandinavian journal of dental research Pub Date : 1985-04-01
{"title":"Symposium on plaque ecology and dental diseases. 23rd-26th August 1984, Oslo.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":21511,"journal":{"name":"Scandinavian journal of dental research","volume":"93 2","pages":"90-134"},"PeriodicalIF":0.0,"publicationDate":"1985-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14974120","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
Early erosion of dental cements. 牙水泥早期腐蚀。
Scandinavian journal of dental research Pub Date : 1984-12-01
G Oilo
{"title":"Early erosion of dental cements.","authors":"G Oilo","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The disintegration in water of various unset glass ionomer cements, a polycarboxylate and a zinc phosphate cement was measured gravimetrically after exposure of the cements to a constant water jet. The test gave reproducible results with significant variations between the various types and brands of cements. For zinc phosphate and polycarboxylate cements, no weight loss was observed in the period from 4 to 8 min after commencement of mixing. All the glass ionomer cements showed a significant loss of weight at 4 min and a somewhat reduced weight loss at 6 min after start of mixing. Two cements, a filling and a luting material, showed reduced weight when exposed to a water jet even 8 min after start of mixing. The early erosion as recorded in the present study conforms with the setting of the glass ionomer cements.</p>","PeriodicalId":21511,"journal":{"name":"Scandinavian journal of dental research","volume":"92 6","pages":"539-43"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17652770","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
Effect of antimicrobial mouthrinses on salivary microflora in healthy subjects. 抗菌漱口水对健康受试者唾液菌群的影响。
Scandinavian journal of dental research Pub Date : 1984-02-01
G Dahlén
{"title":"Effect of antimicrobial mouthrinses on salivary microflora in healthy subjects.","authors":"G Dahlén","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The antibacterial effects of chlorhexidine and an oxygen releasing agent on the salivary microflora were evaluated in healthy subjects in two separate experiments: 1) mouthrinsing on a single occasion and 2) mouthrinsing two or four times a day for 1 wk. Both experiments were performed in a cross-over study, and each subject was randomly tested for both rinsing agents and a saline control. The total bacterial number and some selected bacterial genera were followed in saliva samples taken prior to (zero-samples) and on three occasions after the rinsing or rinsing period. The reduction of the total bacterial number by mouthrinsing two or four times a day for 1 wk with chlorhexidine was statistically significant and lasted for over 4 h. After rinsing with chlorhexidine on one single occasion the reduction of the microflora was statistically significant and of the same magnitude as after rinsing two or four times daily for 1 wk. Although statistically significant reduction was obtained, the significant biologic effect of antimicrobial agents may be questioned. The number of Strep. mutans was dramatically reduced with chlorhexidine in some subjects and this reduction lasted for over 1 wk. The oxygen releasing agent did not reduce salivary flora significantly when rinsing took place two or four times daily for 1 wk.</p>","PeriodicalId":21511,"journal":{"name":"Scandinavian journal of dental research","volume":"92 1","pages":"38-42"},"PeriodicalIF":0.0,"publicationDate":"1984-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17642237","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
Ultrastructural visualization of the adherence of Streptococcus mutans and Streptococcus salivarius to hydroxyapatite. 变形链球菌和唾液链球菌对羟基磷灰石粘附的超微结构可视化。
Scandinavian journal of dental research Pub Date : 1983-12-01
J H Meurman, H Tuompo, K Lounatmaa
{"title":"Ultrastructural visualization of the adherence of Streptococcus mutans and Streptococcus salivarius to hydroxyapatite.","authors":"J H Meurman,&nbsp;H Tuompo,&nbsp;K Lounatmaa","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>S. mutans and S. salivarius adherence to saliva-coated and saliva-uncoated hydroxyapatite was studied by transmission and high resolution scanning electron microscopy. No difference was observed between the saliva-coated and saliva-uncoated study series of adherence. The attachment of individual bacteria to apatite crystals was found to be mediated by cell wall projections. These electron-dense structures were characteristically well formed in S. mutans, and even in S. salivarius the projections appeared to link the bacteria to the apatite. The site of attachment in the bacterial cell wall was always at the division area. We suggest that the possible metabolic activity at the cell wall division site, therefore, also works in the adherence process.</p>","PeriodicalId":21511,"journal":{"name":"Scandinavian journal of dental research","volume":"91 6","pages":"448-52"},"PeriodicalIF":0.0,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17637112","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
Effect of topical application of stannous fluoride, stannous chloride and stannous tartrate on rat caries. 局部应用氟化亚锡、氯化亚锡和酒石酸亚锡对大鼠龋齿的影响。
Scandinavian journal of dental research Pub Date : 1983-10-01
G Rölla, S M Amsbaugh, E Monell-Torrens, J E Ellingsen, J Afseth, J E Ciardi, W H Bowen
{"title":"Effect of topical application of stannous fluoride, stannous chloride and stannous tartrate on rat caries.","authors":"G Rölla,&nbsp;S M Amsbaugh,&nbsp;E Monell-Torrens,&nbsp;J E Ellingsen,&nbsp;J Afseth,&nbsp;J E Ciardi,&nbsp;W H Bowen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Topical application of 10 mM aqueous solutions of stannous fluoride inhibited caries in rats to a higher degree than 20 mM sodium fluoride, although the difference was not statistically significant. Furthermore, stannous fluoride reduced the number of Strep. mutans in plaque significantly; stannous ions have an antibacterial effect. Stannous chloride and stannous tartrate did not reduce caries in the rats, probably because of the low concentrations of available stannous ions in these solutions at low pH. The high concentration of stannous ions in solutions of stannous fluoride is probably partly due to the reduced hydroxide formation resulting from the buffering effect of HF formed at low pH in this solution.</p>","PeriodicalId":21511,"journal":{"name":"Scandinavian journal of dental research","volume":"91 5","pages":"351-5"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17636885","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
Weight loss of endodontic sealers, cements and pastes in water. 根管密封剂、水凝剂和膏体的减重效果。
Scandinavian journal of dental research Pub Date : 1983-08-01
D Orstavik
{"title":"Weight loss of endodontic sealers, cements and pastes in water.","authors":"D Orstavik","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A solubility test based on weight loss in water, as proposed for standard testing programs (ADA & ISO), was adapted for assessing the solubility of 10 root canal sealers, cements and pastes. The weight loss of the set materials during 24 hr in distilled water at 37 degrees C ranged from -0.84 (AH26) to 22.71 (Kloroperka N-O) weight per cent. The results were reproducible, and the test was considered suitable for routine testing of weight loss in water of endodontic materials. However, the test may not provide information which is directly related to the clinical behavior of the materials.</p>","PeriodicalId":21511,"journal":{"name":"Scandinavian journal of dental research","volume":"91 4","pages":"316-9"},"PeriodicalIF":0.0,"publicationDate":"1983-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17635835","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信