发布求助
文献互助 智能选刊 最新文献

Deutsche zahnarztliche Zeitschrift最新文献

筛选
英文 中文
[How precise is the optical Cerec impression?]. [光学成像的精度有多高?]
Deutsche zahnarztliche Zeitschrift Pub Date : 1991-09-01
C Benz, P Schwarz
{"title":"[How precise is the optical Cerec impression?].","authors":"C Benz,&nbsp;P Schwarz","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The purpose of this investigation was to evaluate the precision of optical impressio obtained with the Cerec-device. Cerec provides a linear correlation between z-data and altitude (r = 1), one bit representing 49 microns. Repeated measurements deliver pixel-z-data within a range of +/- 49 microns and surfaceaverages (484 pixel) within +/- 5 microns. Deviations occur near areas with parallel orientation to the direction of measurement.</p>","PeriodicalId":11244,"journal":{"name":"Deutsche zahnarztliche Zeitschrift","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12980072","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
[Physiological tooth migration in hydroxyapatite grafts with bony regeneration. Animal study]. 羟基磷灰石骨再生移植物的生理性牙齿迁移。动物研究。
Deutsche zahnarztliche Zeitschrift Pub Date : 1991-08-01
E A Holtgrave
{"title":"[Physiological tooth migration in hydroxyapatite grafts with bony regeneration. Animal study].","authors":"E A Holtgrave","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Tooth migration into jaw segments where granular hydroxy apatite had been implanted was studied in rats. To prevent premature contact with the ceramic granules, tooth germs were completely removed in the animals at the age of 10 days. Tooth root contact with the ceramo-osseous complex as a result of physiological tooth migration had deleterious effects. In the light of these findings the implantation of granular hydroxy apatite in the vicinity of tooth roots is not advisable.</p>","PeriodicalId":11244,"journal":{"name":"Deutsche zahnarztliche Zeitschrift","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12833543","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
[Inter- and intrapersonal coincidence of caries epidemiologic data]. [龋齿流行病学资料的人际和个人巧合]。
Deutsche zahnarztliche Zeitschrift Pub Date : 1991-08-01
H J Gülzow, U Schiffner
{"title":"[Inter- and intrapersonal coincidence of caries epidemiologic data].","authors":"H J Gülzow,&nbsp;U Schiffner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>For testing the reliability of caries epidemiologic data a group of 273 children, aged 7 to 15 years, was examined by two dentists. A second group of children was investigated twice by one examiner at an interval of two weeks. Neither an inter-examiner nor an intra-examiner comparison of these data did indicate any statistically significant differences in caries incidence.</p>","PeriodicalId":11244,"journal":{"name":"Deutsche zahnarztliche Zeitschrift","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12979552","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
[Studies on the pneumoconiosis risk of dental laboratory technicians due to palladium particles in dust]. [粉尘中钯颗粒对牙科实验室技术人员尘肺病风险的研究]。
Deutsche zahnarztliche Zeitschrift Pub Date : 1991-08-01
M Augthun, C J Kirkpatrick, S Schyma
{"title":"[Studies on the pneumoconiosis risk of dental laboratory technicians due to palladium particles in dust].","authors":"M Augthun,&nbsp;C J Kirkpatrick,&nbsp;S Schyma","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":11244,"journal":{"name":"Deutsche zahnarztliche Zeitschrift","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12981193","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
[Effects of amalgam on cells of the immune system]. 汞合金对免疫系统细胞的影响。
Deutsche zahnarztliche Zeitschrift Pub Date : 1991-08-01
M Wilhelm, P Dünninger, R Rüppel, H P Tony, K Wilms, B Klaiber
{"title":"[Effects of amalgam on cells of the immune system].","authors":"M Wilhelm,&nbsp;P Dünninger,&nbsp;R Rüppel,&nbsp;H P Tony,&nbsp;K Wilms,&nbsp;B Klaiber","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Dental amalgam has been considered to have adverse side effects on the immune system. There are controversial reports, which indicate an increase as well as a decrease in peripheral blood lymphocyte counts due to amalgam fillings. We investigated 2 groups of patients: one group was treated with amalgam restorations for the first time. In the other group all previous amalgam fillings were removed. Before and after treatment we determined the absolute and relative numbers of granulocytes, lymphocytes, monocytes, T cells, B cells, suppressor T cells, helper T cells and NK cells. In addition, functional investigations of T cells were performed. In conclusion, we could not find any effect of amalgam restorations on the immune system regarding the investigated parameters.</p>","PeriodicalId":11244,"journal":{"name":"Deutsche zahnarztliche Zeitschrift","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12979545","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
[Mercury release from amalgam specimens]. [汞合金样品中汞的释放]。
Deutsche zahnarztliche Zeitschrift Pub Date : 1991-08-01
U Fritz, M Zellmann
{"title":"[Mercury release from amalgam specimens].","authors":"U Fritz,&nbsp;M Zellmann","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Over 7 days specimens of 5 gamma 2-free Amalgams were stored in KSCN-containing and KSCN-free lactic acid-salt solution. After 1, 4 and 7 days samples of the solution were analyzed for their mercury contents using inductively coupled plasma atom emission spectroscopy. In KSCN-containing solution the release of mercury was 45.4 micrograms, in KSCN-free solution it was 70.7 micrograms/50 mm2. KSCN, a part of natural saliva, has the effect of inhibiting corrosion.</p>","PeriodicalId":11244,"journal":{"name":"Deutsche zahnarztliche Zeitschrift","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12979548","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
[Papilla-preserving flap procedure in periodontal implantation of alloplastic materials. Comparative study]. 同种异体材料牙周植入术中保留乳头瓣的应用。比较研究。
Deutsche zahnarztliche Zeitschrift Pub Date : 1991-08-01
J W Kleinfelder, D E Lange
{"title":"[Papilla-preserving flap procedure in periodontal implantation of alloplastic materials. Comparative study].","authors":"J W Kleinfelder,&nbsp;D E Lange","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>40 periodontal defects with probing depths of 5 mm in 10 patients were treated with a conventional flap or with the \"papilla preservation flap\". In addition, half of the defects received granular hydroxyapatite. In terms of pocket depth and probing attachment-level no significant differences were seen between the 4 groups after 3 and 6 months. Regarding the development of gingival recession, however, the papilla preservation technique has significant advantages and showed better aesthetic results.</p>","PeriodicalId":11244,"journal":{"name":"Deutsche zahnarztliche Zeitschrift","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12833544","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
[Long-term study on the effects of the width of keratinized gingiva on the localization of the gingival margin]. [角化龈宽度对龈缘定位影响的长期研究]。
Deutsche zahnarztliche Zeitschrift Pub Date : 1991-08-01
T Kocher, J Hufnagel, H C Plagmann
{"title":"[Long-term study on the effects of the width of keratinized gingiva on the localization of the gingival margin].","authors":"T Kocher,&nbsp;J Hufnagel,&nbsp;H C Plagmann","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In a 5-year longitudinal study we assessed the amount and frequency of gingival recessions in relation to the width of the keratinized gingiva and the already existing recessions in two groups (each n = 15). Group I (dental students) had nearly no recessions and group II (patients) had exposed roots on 24% of their teeth. In both groups there existed no correlation between the width of the keratinized gingiva or, respectively the existing recessions and the recessions occurring. Only 36 sites had a recession greater than or equal to 1 mm, these were accumulated in just a few probands.</p>","PeriodicalId":11244,"journal":{"name":"Deutsche zahnarztliche Zeitschrift","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12890251","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
[Sensitivity of pocket diagnosis as a function of numbers of probings]. [口袋诊断的灵敏度作为探测次数的函数]。
Deutsche zahnarztliche Zeitschrift Pub Date : 1991-08-01
M Kühner, P Raetzke
{"title":"[Sensitivity of pocket diagnosis as a function of numbers of probings].","authors":"M Kühner,&nbsp;P Raetzke","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Probing depth (PD) is measured at 2, 4 or 6 sites per tooth. We sought to ascertain whether or not more measurements increase the sensitivity of assessing the severity of periodontitis. 2 probings compared with 4 probings per tooth resulted in 68% sensitivity for PD greater than 2 mm and 77% for PD greater than 4 mm. The mesio-buccal PD explains only 16% of the variance of the buccal/oral PD. Comprehensive examination of pockets should consist of a minimum of 4 probings per tooth.</p>","PeriodicalId":11244,"journal":{"name":"Deutsche zahnarztliche Zeitschrift","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12979543","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
[Toxicological assessment of amalgam components released in immersion tests]. [浸没试验中汞合金成分释放的毒理学评估]。
Deutsche zahnarztliche Zeitschrift Pub Date : 1991-08-01
M Weiland, H Nossek
{"title":"[Toxicological assessment of amalgam components released in immersion tests].","authors":"M Weiland,&nbsp;H Nossek","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>After immersion of unpolished and polished high copper amalgam in saliva with different pH values for up to 12 weeks, the elements mercury, tin, copper, silver and antimony were analysed in the solution. Unpolished amalgam corroded more than polished amalgam. Corrosion increased with the time of immersion and the acidity of the solution. The values calculated to a maximum of clinical application not imply any toxicologic risk.</p>","PeriodicalId":11244,"journal":{"name":"Deutsche zahnarztliche Zeitschrift","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12979546","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
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