The Journal of Nihon University School of Dentistry最新文献

A clinicopathologic study of odontomas: Malaysian findings. 牙瘤的临床病理研究:马来西亚的发现。

The Journal of Nihon University School of Dentistry Pub Date : 1997-12-01 DOI: 10.2334/josnusd1959.39.171

K H Ng, C H Siar

引用次数: 3

Immunohistochemical and biochemical analysis of laminin in neonatal rat first molars. 新生大鼠第一磨牙层粘连蛋白的免疫组织化学和生化分析。

The Journal of Nihon University School of Dentistry Pub Date : 1997-12-01 DOI: 10.2334/josnusd1959.39.176

R Della Coletta, S S Veiga, S R Line

引用次数: 3

Dental arch form in three Pacific populations: a comparison with Japanese and Australian aboriginal samples. 三个太平洋人口的牙弓形成:与日本和澳大利亚土著样本的比较。

The Journal of Nihon University School of Dentistry Pub Date : 1997-12-01 DOI: 10.2334/josnusd1959.39.196

K Kasai, E Kanazawa, H Aboshi, L C Richards, M Matsuno

{"title":"Dental arch form in three Pacific populations: a comparison with Japanese and Australian aboriginal samples.","authors":"K Kasai, E Kanazawa, H Aboshi, L C Richards, M Matsuno","doi":"10.2334/josnusd1959.39.196","DOIUrl":"10.2334/josnusd1959.39.196","url":null,"abstract":"The purpose of this study was to provide information about arch shape variations among South Pacific populations. The application of Fourier transforms, Y(phi i) = ao/2 + sigma (aicos phi i + bisin phi i) was used to separate two components of variation; size and shape. Dental arch size can be described by one coefficient (ao), while the shape can be summarized by the first three harmonics (amp1-3) in the Fourier series. The materials used in this study were dental casts of South Pacific populations (Fiji, Western Samoa and Kiribati), Australian Aboriginals and Japanese. Fijians, Western Samoans and Kiribati people have larger upper and lower dental arches than that of Japanese. These populations were separated by the arch size and first Fourier amplitudes which showed the arch depth/width ratio. The Fijian upper and lower dental arches were significantly larger than those found in other populations and was characterized by a wide posterior arch breadth. The Western Samoan and Kiribati arch shape was more similar to the Japanese arch shape than the Fijian. Distribution patterns of arch shape characteristics in these populations showed the same tendencies in the upper and lower arches.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 4","pages":"196-201"},"PeriodicalIF":0.0,"publicationDate":"1997-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20402227","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

An improved assay method for fibroblast gelatinolytic enzyme. 一种改进的成纤维细胞明胶溶酶测定方法。

The Journal of Nihon University School of Dentistry Pub Date : 1997-12-01 DOI: 10.2334/josnusd1959.39.182

K Otsuka, M Ohshima, M Kaku, T Kajima, M Fukuoka, Y Kaiya, K Suzuki

{"title":"An improved assay method for fibroblast gelatinolytic enzyme.","authors":"K Otsuka, M Ohshima, M Kaku, T Kajima, M Fukuoka, Y Kaiya, K Suzuki","doi":"10.2334/josnusd1959.39.182","DOIUrl":"https://doi.org/10.2334/josnusd1959.39.182","url":null,"abstract":"A useful gelatinolytic enzyme assay for fibroblasts, utilizing a novel sample preparation method for collagenase with dithiothreitol (DTT) treatment to inactivate endogenous collagenase inhibitors, was developed using soluble fluorescein isothiocyanate (FITC)-labeled gelatin. The substrate, gelatin was prepared by heating commercially available FITC-labeled type I collagen. The denatured collagen was cleaved with purified trypsin and partially purified fibroblast gelatinase, and the digested FITC-fragments were measured fluorometrically. The intensity of the fluorescence was in proportion to the reaction time and enzyme concentration. Both enzyme activities were measurable within the nanogram range of enzyme preparations. The enzyme activity was detected after 4-aminophenylmercuric acetate (APMA) treatment which was completely inhibited by metalloproteinase inhibitors, but not by serine- and cysteine-proteinases' inhibitors. Conditioned media of human periodontal ligament fibroblasts (PLF) and gingival fibroblasts (GF) were separately treated with DTT prior to the enzyme assay, and then the assay was performed in the presence of APMA. The enzyme activities of PLF and GF were 106- and 55-fold higher than those of the conventional gelatinase assay which was carried out without DTT treatment. This assay method allowed the measurement of gelatinolytic enzyme activity when tissue inhibitors of metalloproteinases were present in the fibroblast culture medium.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 4","pages":"182-90"},"PeriodicalIF":0.0,"publicationDate":"1997-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2334/josnusd1959.39.182","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20402225","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: 6

Effects of unilateral upper incisor extraction on facial growth of young rats. 单侧上切牙拔除对幼鼠面部生长的影响。

The Journal of Nihon University School of Dentistry Pub Date : 1997-12-01 DOI: 10.2334/josnusd1959.39.191

M K Yamamoto, M D Novelli, J G Luz

引用次数: 9

A case of hemangiopericytoma of the buccal mucosa. 颊粘膜血管外皮细胞瘤1例。

The Journal of Nihon University School of Dentistry Pub Date : 1997-12-01 DOI: 10.2334/josnusd1959.39.211

M Terakado, T Uehara, T Takigawa, M Honda, H Ohki, T Sekiwa, H Sato, A Kawashima, K Komiyama, I Moro

引用次数: 5

A study of effects of mouthwash on the human oral mucosae: with special references to sites, sex differences and smoking. 漱口水对人类口腔黏膜影响的研究:特别涉及部位、性别差异和吸烟。

The Journal of Nihon University School of Dentistry Pub Date : 1997-12-01 DOI: 10.2334/josnusd1959.39.202

K Kuyama, H Yamamoto

{"title":"A study of effects of mouthwash on the human oral mucosae: with special references to sites, sex differences and smoking.","authors":"K Kuyama, H Yamamoto","doi":"10.2334/josnusd1959.39.202","DOIUrl":"https://doi.org/10.2334/josnusd1959.39.202","url":null,"abstract":"In recent years, the use of mouthwash has become widespread as a part of routine oral hygiene. However, there have been no fundamental studies on the influence of mouthwashes on the human oral mucosae. One hundred and twenty-five subjects (50 males and 75 females) were selected for this study. The effects of mouthwash was assessed with the use of exfoliative cytological and cytomorphometric analyses of smears obtained from clinically normal upper labium and cheek mucosae before mouthwashing, 30 s, 10 min and 1 h after mouthwashing. The independent variables examined were oral site, sex and smoking (smokers versus never-smokers). In all subjects and sites, the appearance rate of exfoliated cells stained by light green SFY decreased just after mouthwashing, and the rate after 1 h was lower than that of the untreated controls. The oral mucosae of smokers were more irritated action by mouthwashing than that of the never-smokers. Even after 1 h, decreases in the nuclear and cytoplasmic areas of cells and increases in inflammatory cells were observed. In conclusion, the use of mouthwash was so inflamed the human oral mucosae that more attention should be paid when it is used daily in oral hygiene.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 4","pages":"202-10"},"PeriodicalIF":0.0,"publicationDate":"1997-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2334/josnusd1959.39.202","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20402228","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: 15

Solubilizing efficiency of different gutta-percha solvents: a comparative study. 不同杜仲胶溶剂增溶效率的比较研究。

The Journal of Nihon University School of Dentistry Pub Date : 1997-09-01 DOI: 10.2334/josnusd1959.39.133

M O Görduysus, F Taşman, S Tuncer, I Etikan

引用次数: 28

Flouride release from various restorative materials. 各种修复材料中的氟化物释放。

The Journal of Nihon University School of Dentistry Pub Date : 1997-09-01 DOI: 10.2334/josnusd1959.39.123

O Bala, M Uçtaşli, H Can, E Türköz, M Can

引用次数: 16

Anti-bacterial action of onion (Allium cepa L.) extracts against oral pathogenic bacteria. 洋葱提取物对口腔致病菌的抑菌作用。

The Journal of Nihon University School of Dentistry Pub Date : 1997-09-01 DOI: 10.2334/josnusd1959.39.136

J H Kim

{"title":"Anti-bacterial action of onion (Allium cepa L.) extracts against oral pathogenic bacteria.","authors":"J H Kim","doi":"10.2334/josnusd1959.39.136","DOIUrl":"https://doi.org/10.2334/josnusd1959.39.136","url":null,"abstract":"In this study, the focus was on the antibacterial activity of onions. This study researched the activities of onion extracts on Streptococcus mutans and Streptococcus sobrinus, the main causal bacteria for dental caries, and Porphyromonas gingivalis and Prevotella intermedia, considered to be the main causal bacteria of adult periodontitis. The results showed that the onion extracts possess an effect on all test bacterial strains (S.mutans JC-2, S. sobrinus OMZ176, P. gingivalis ATCC 33277 and P. intermedia ATCC 25611), and the effects were bactericidal against cultured and resting bacterial cells. The activity of the onion extracts was stable even after 48 hours in the culture medium. This result suggests that no decomposition or volatility of onion extracts occurred in the culture medium. The antibacterial activity of onion extracts was not markedly influenced by cysteine (10 mM) treatment. However, activity significantly decreased with alkali treatment. Grated onion left to stand at 37 degrees C for 48 hours did not show antibacterial activity. Also, activity of steam treated (100 degrees C, 10 min.) onion was not observed. Using avicel plate by thin layer chromatography with the solvent of n-butanol:acetic acid:water (3:3:1), the main component of the substance (the substance which develops color with ninhydrin) was observed at an Rf value of about 0.9.","PeriodicalId":22638,"journal":{"name":"The Journal of Nihon University School of Dentistry","volume":"39 3","pages":"136-41"},"PeriodicalIF":0.0,"publicationDate":"1997-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2334/josnusd1959.39.136","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20284354","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: 63