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[Biocompatibility studies of periodontal dressings]. 牙周敷料的生物相容性研究。
Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt Pub Date : 1991-01-01
R E Sachse, R L Mueller, R Bschorer, B Frerich, A Jorissen
{"title":"[Biocompatibility studies of periodontal dressings].","authors":"R E Sachse,&nbsp;R L Mueller,&nbsp;R Bschorer,&nbsp;B Frerich,&nbsp;A Jorissen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Periodontal packs have to be considered medications due to their direct contact to the gums and wound surfaces. For this reason a high cell biological compatibility has to be considered as one of their most important properties. For this reason, the cytotoxicity of all periodontal packs commonly used in Germany was examined, using the \"Erlangen Ciliate Test\". This method, which is commonly used to determine the cytotoxic and cytostatic properties of a wide variety of different materials and substances, is based on liquid cultures of the eucaryotic organism \"Tetrahymena piriformis\", using an excellent correlation with mammalian or human tissue cultures as well as the LD50. A significant toxicity of up to 50% could be shown in all but one periodontal pack. In addition, the antibacterial properties of the same materials were examined, using liquid cultures of Staphylococcus aureus and hemolyzing streptococci group A. However, using this method, no significant antibacterial effects could be shown.</p>","PeriodicalId":77104,"journal":{"name":"Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12966094","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
[The DNA ploidy in squamous cell carcinomas of the mouth floor determined by flow cytometry]. [用流式细胞术测定口腔底鳞状细胞癌的DNA倍体]。
Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt Pub Date : 1991-01-01
J Hemmer, T Thein, S Haase, J Kreidler, I Heinle
{"title":"[The DNA ploidy in squamous cell carcinomas of the mouth floor determined by flow cytometry].","authors":"J Hemmer,&nbsp;T Thein,&nbsp;S Haase,&nbsp;J Kreidler,&nbsp;I Heinle","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The cellular DNA content of 90 primary squamous cell carcinomas of the floor of mouth was determined by flow cytometry. Aneuploid cell lines were detected in 86% of the cases. The proportion of diploid carcinomas decreased with size (T1: 63%, T2: 11%, T3: 7%) and histologic grade (G1: 17%, G2: 16%, G3: 9%). Only 15% of the diploid, but 61% of the aneuploid tumors showed evidence of lymph node involvement. A 96% sensitivity of the test and a negative predictive value of 85% emphasize the prognostic importance of DNA ploidy in the primary tumor to evaluate the risk of subclinical dissemination.</p>","PeriodicalId":77104,"journal":{"name":"Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13090912","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
[The angulation of the base of the skull--a determining factor for facial skeletal development? The significance of the angulation of the base of the skull]. [颅底的角度——面部骨骼发育的决定性因素?[颅骨底部成角的意义]。
Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt Pub Date : 1991-01-01
R Sielaff
{"title":"[The angulation of the base of the skull--a determining factor for facial skeletal development? The significance of the angulation of the base of the skull].","authors":"R Sielaff","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>By means of tensor analysis this cephalometric study was undertaken to compare the growth differences of the facial skull of untreated orthodontic patients. We investigated children with small cranial base angle (BaSN = 128-132 degrees) and another group with an angle greater than 132 degrees. In this cross-sectional study we compared the development of the skull from an age of 7 to 8 years to an age of 9 to 10 years. In contrast to patients with small cranial base angle those with flatter base showed an increased vertical growth. The growth of the midface and mandible tend toward a retrognathic face. Angle Cl.-I cases showed a proportional horizontal growth pattern in all regions of the face.</p>","PeriodicalId":77104,"journal":{"name":"Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13092327","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
[The diagnosis of approximal caries--a comparison of clinical, fiber optic and x-ray diagnostic procedures (the diagnosis of approximal caries)]. 【近似龋的诊断——临床、光纤和x线诊断方法(近似龋的诊断)的比较】。
Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt Pub Date : 1991-01-01
R Heinrich, W Künzel, H Tawfiq
{"title":"[The diagnosis of approximal caries--a comparison of clinical, fiber optic and x-ray diagnostic procedures (the diagnosis of approximal caries)].","authors":"R Heinrich,&nbsp;W Künzel,&nbsp;H Tawfiq","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A comparison of the efficiency of fibre-optic transillumination with clinical and radiographic diagnosis of proximal caries in posterior teeth was carried out on 186 subjects aged 12 to 17 years. The proportion of diagnosed proximal lesions detected by fibre-optic transillumination was two times more often than by clinical examination while the increase in lesion detection by bitewing radiography was more than threefold. Taking radiographic diagnosis as the validating criteria, the sensitivity of clinical examination was 0.30 and of fibre-optic transillumination 0.68 resp. The specificity was 0.99 for both examinations. In patients with low prevalence of proximal caries and good preventive dental care fibre-optic transillumination should be used as an additional method before using of regular radiographic diagnosing of proximal caries.</p>","PeriodicalId":77104,"journal":{"name":"Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12918876","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
[The establishment efficiency of S. sobrinus OMZ 176 in a model caries experiment on the Osborne-Mendel rat]. [S. sobrinus omz176在模型龋中的建立效率在奥斯本-孟德尔大鼠身上进行实验]。
Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt Pub Date : 1991-01-01
L Stösser, S Kneist
{"title":"[The establishment efficiency of S. sobrinus OMZ 176 in a model caries experiment on the Osborne-Mendel rat].","authors":"L Stösser,&nbsp;S Kneist","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>S. sobrinus OMZ 176 was inoculated in young OM rats during tooth eruption in two experiments and the microbial composition of dental plaque as well as the caries decay was estimated after 25 days on cariogenic sucrose rich diet. Germs were reproducibly established in the oral cavity by such way. The resulting caries decay correlated with the streptococci in the dental plaque. Due to this fact it seems to be necessary to identify not only the inoculated microorganisms at the end of each animal experiment but also to estimate the qualitative composition of the whole dental flora which may have an essential cariogenic effect.</p>","PeriodicalId":77104,"journal":{"name":"Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13033909","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
[Teleroentgenographic findings in adults with overbite. Teleroentgenographic morphology in closed-bite patients]. 成人复咬的远程x线造影结果。闭合性咬合患者的远端造影形态学[j]。
Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt Pub Date : 1991-01-01
A Reinhardt, W Harzer
{"title":"[Teleroentgenographic findings in adults with overbite. Teleroentgenographic morphology in closed-bite patients].","authors":"A Reinhardt,&nbsp;W Harzer","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Lateral skull radiographs were analyzed in twenty patients with retroclined incisors. Greatest deviations from the comparison values were found in the region of the lower face. The mandible shows a retrognathic and counter clockwise rotated position. The height of the anterior lower face height and the dentoalveolar height are reduced. The interincisor angle ist distinct increased. Etiological aspects and the therapeutical consequences of the findings are mentioned.</p>","PeriodicalId":77104,"journal":{"name":"Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13033910","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
[Periodontal status in Rio de Janeiro city (Brazil)]. [巴西里约热内卢市牙周状况]。
Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt Pub Date : 1991-01-01
R Mengel, L Flores-de-Jacoby, S Bruchmann, G G Zafiropoulos
{"title":"[Periodontal status in Rio de Janeiro city (Brazil)].","authors":"R Mengel,&nbsp;L Flores-de-Jacoby,&nbsp;S Bruchmann,&nbsp;G G Zafiropoulos","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The periodontal status and the treatment needs were investigated in 1854 residents of Rio de Janeiro City (Brazil) by means of the CPITN. The results of the study showed that 2.5% of the examined individuals were healthy (CPITN 0), 8.1% displayed an increased tendency towards bleeding on probing (CPITN 1) and 23.2% presented with calculus and bleeding on probing (CPITN 2). Shallow pocketing (CPITN 3) was observed in 51.4% and deep pocketing (CPITN 4) in 14.7% of the examined subjects. Since 97.5% of the examined population were in need of periodontal therapy, the necessity for organizing an oral health program with emphasis on prevention and treatment of periodontal disease is strongly indicated.</p>","PeriodicalId":77104,"journal":{"name":"Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13071999","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
[Bilateral gemination of the central incisors in the maxilla]. [上颌骨中门牙的双侧分生]。
Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt Pub Date : 1991-01-01
U Frohberg
{"title":"[Bilateral gemination of the central incisors in the maxilla].","authors":"U Frohberg","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77104,"journal":{"name":"Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13090911","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
[DNA cytophotometric studies of central giant-cell lesions of the jaw region]. [颌骨中央巨细胞病变的DNA细胞光度研究]。
Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt Pub Date : 1991-01-01
A Eckardt, M A Pogrel, L B Kaban, K Chew, B H Mayall
{"title":"[DNA cytophotometric studies of central giant-cell lesions of the jaw region].","authors":"A Eckardt,&nbsp;M A Pogrel,&nbsp;L B Kaban,&nbsp;K Chew,&nbsp;B H Mayall","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Giant cell nuclear DNA, in 30 giant cell lesions of the jaws, was quantitated by computer-assisted image analysis. DNA content was then used to predict clinical behavior and outcome. Four.nuclei in each of 25 giant cells (total = 100 nuclei) were randomly selected and DNA content was quantitated by the LEITZ Texture-Analysis-System-Plus. DNA in nuclei of normal appearing stromal fibroblasts (n = 20) was similarly measured. DNA index was calculated as the mean nuclear DNA content of giant cells divided by mean DNA content of control fibroblasts. The mean DNA index of aggressive lesions (1.09, S. D. = 0.12) was not significantly different from that of non-aggressive lesions (1.18, S. D. = 0.15) (p = 0.093). The results indicate that nuclear DNA content of giant cells is not useful as a predictor of clinical behavior of giant-cell lesions of the jaws.</p>","PeriodicalId":77104,"journal":{"name":"Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13090913","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
[Scanning electron microscopic studies on the corrosion behavior of osteosynthesis plates made of titanium and V4A steel. A case report]. 钛与V4A钢合成骨板腐蚀行为的扫描电镜研究。[病例报告]。
Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt Pub Date : 1991-01-01
V Bienengräber, J Härtel, K Godknecht
{"title":"[Scanning electron microscopic studies on the corrosion behavior of osteosynthesis plates made of titanium and V4A steel. A case report].","authors":"V Bienengräber,&nbsp;J Härtel,&nbsp;K Godknecht","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77104,"journal":{"name":"Deutsche Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20213641","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
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