Koku Eisei Gakkai zasshi最新文献_第7页

[Development of an optical manipulator of YAG laser for dental use]. 牙科用YAG激光光学机械手的研制

Koku Eisei Gakkai zasshi Pub Date : 1980-04-01 DOI: 10.5834/jdh.30.12

T Morioka

引用次数: 0

[Changes in plaque formation and gingivitis in ODU plaque-susceptible rats]. [ODU牙菌斑易感大鼠牙菌斑形成和牙龈炎的变化]。

Koku Eisei Gakkai zasshi Pub Date : 1980-04-01 DOI: 10.5834/jdh.30.30

K Konishi, N Ito

引用次数: 0

[A study on the applications of the enamel disk. Part 1. The enamel disk molding method and physical properties of an enamel disk]. 搪瓷盘的应用研究。第1部分。磁碟成型方法及磁碟的物理特性。

Koku Eisei Gakkai zasshi Pub Date : 1980-04-01

T Ohsawa, C Miyazawa, M Eto, T Shimizu, T Kawasaki

引用次数: 0

[Histological study of the effects of lactobacillus drinks on human teeth (III). Changes in the natural surface and outer layer of enamel on exposure to disinfected lactobacillus drink]. [乳酸菌饮料对人类牙齿影响的组织学研究(三)。接触消毒乳酸菌饮料后釉质自然表面和外层的变化]。

Koku Eisei Gakkai zasshi Pub Date : 1980-04-01 DOI: 10.5834/jdh.30.2

T. Kodaka, T. Kawahara, M. Kobayashi, K. Nakagawa, S. Higashi

引用次数: 2

[Histological study of the effects of lactobacillus drinks on human teeth (III). Changes in the natural surface and outer layer of enamel on exposure to disinfected lactobacillus drink]. [乳酸菌饮料对人类牙齿影响的组织学研究(三)。接触消毒乳酸菌饮料后釉质自然表面和外层的变化]。

Koku Eisei Gakkai zasshi Pub Date : 1980-04-01

T Kodaka, T Kawahara, M Kobayashi, K Nakagawa, S Higashi

引用次数: 0

[A study on the applications of the enamel disk. Part 1. The enamel disk molding method and physical properties of an enamel disk]. 搪瓷盘的应用研究。第1部分。磁碟成型方法及磁碟的物理特性。

Koku Eisei Gakkai zasshi Pub Date : 1980-04-01 DOI: 10.5834/JDH.30.23

T. Ohsawa, C. Miyazawa, M. Eto, T. Shimizu, T. Kawasaki

{"title":"[A study on the applications of the enamel disk. Part 1. The enamel disk molding method and physical properties of an enamel disk].","authors":"T. Ohsawa, C. Miyazawa, M. Eto, T. Shimizu, T. Kawasaki","doi":"10.5834/JDH.30.23","DOIUrl":"https://doi.org/10.5834/JDH.30.23","url":null,"abstract":"Extracted teeth are not suitable for many experiments, for example, regarding enamel solubility and plaque adhesion, because they have no reproducibility. So it is necessary to make a test piece that closely resembles enamel, is uniform, and applicable to such experimentation.The enamel disk molding method is as follows.1) Thoroughly mix 325 mesh enamel powder refined from many extracted teeth with polymer solution.2) Dry and pulverise it to 250 mesh.3) Take 200 mg of 250 mesh powder and fill a metal mold with it.4) Press it with a pressure of 18 ton/cm2.The enamel powder is reduced to an enamel disk which is from 0.7 to 1.0 mm in thickness and 13 mm in diameter.Polymer solution of polymethyl methacrylate (PMMA), epoxy (EP), or polystyrene (PS) can be used to mold an enamel disk. The concentration of polymer solution can be 10%, 20%, or 30%.A 10% PMMA-enamel disk is better than any others judging from its handling and attributes. It specific gravity of 2.27±0.07, a Vickers hardness number of 79.80±4.47 and a strength of rupture in bending of 0.928±0.059. The coefficients of variation of the Vickers hardness number and strength of rupture in bending are relatively small, 5.60% and 6.36%, respectively, in five-time repetitive tests.The purpose of this study, to get a uniform test piece, was achieved.","PeriodicalId":76075,"journal":{"name":"Koku Eisei Gakkai zasshi","volume":"7 1","pages":"23-9"},"PeriodicalIF":0.0,"publicationDate":"1980-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88246828","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 fluorosis, especially effects of fluoride on thyroid metabolism]. [氟中毒，特别是氟对甲状腺代谢影响的研究]。

Koku Eisei Gakkai zasshi Pub Date : 1980-04-01

K Hara

引用次数: 0

[Effects of protein nutrition on Pb, Ca, and P contents in hard tissues of lead-administered rats]. 蛋白质营养对铅给药大鼠硬组织中铅、钙、磷含量的影响

Koku Eisei Gakkai zasshi Pub Date : 1980-04-01 DOI: 10.5834/jdh.30.17

M Niwa

引用次数: 0

[Effect of premature loss of deciduous molars on the development of malocclusion in permanent dentition]. 乳牙过早脱落对恒牙列错牙合发育的影响。

Koku Eisei Gakkai zasshi Pub Date : 1980-04-01 DOI: 10.5834/jdh.30.37

G Ito, O Takagi, Y Shimada, N Inoue, M Kuwahara