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Factor VII deficiency first observed at preoperative routine clotting test. 在术前常规凝血试验中首次观察到因子7缺乏。
The Journal of Osaka University Dental School Pub Date : 1990-12-01
H Yoshioka, M Kogo, S Iida, T Taki, M Kawamoto, T Matsuya
{"title":"Factor VII deficiency first observed at preoperative routine clotting test.","authors":"H Yoshioka,&nbsp;M Kogo,&nbsp;S Iida,&nbsp;T Taki,&nbsp;M Kawamoto,&nbsp;T Matsuya","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Factor VII deficiency was first observed in a 24-year-old female in the routine clotting test for tooth extraction. Her factor VII was 22%, mildly below normal limits. Factor IX complex was not administered as replacement therapy when her impacted tooth was extracted. There was no sign of abnormal postoperative bleeding. As this disease was a rare disorder, the minimum safe level of factor VII for tooth extraction was unknown. We had a opportunity to study a patient with this disorder observed in the preoperative routine clotting test for tooth extractions.</p>","PeriodicalId":76655,"journal":{"name":"The Journal of Osaka University Dental School","volume":"30 ","pages":"157-60"},"PeriodicalIF":0.0,"publicationDate":"1990-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13306477","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 several resin monomers on water insoluble glucan formation by glucosyltransferase of Streptococcus sobrinus. 几种树脂单体对sobrinus链球菌葡萄糖基转移酶形成水不溶性葡聚糖的影响。
The Journal of Osaka University Dental School Pub Date : 1989-12-01
K Kawai, M Torii, Y Tsuchitani
{"title":"Effect of several resin monomers on water insoluble glucan formation by glucosyltransferase of Streptococcus sobrinus.","authors":"K Kawai,&nbsp;M Torii,&nbsp;Y Tsuchitani","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The cause or mechanism by which more plaque tend to accumulate on composite resins than on any other restorative materials has yet to be sufficiently explained. The purpose of this study was to investigate a possible mechanism by clarifying the effects of several monomers on the glucosyltransferase activity from Streptococcus sobrinus. The following results were obtained. In the individual resin monomers, di-, tri- and tetra-ethylene glycol dimethacrylate (2G, 3G and 4G), Bis-GMA and UDMA showed a stimulatory tendency of water insoluble glucan (WIG) formation. However, ethylene glycol dimethacrylate (IG), polyethylene glycol dimethacrylate (9G and 14G), and MMA diminished the synthesis of water soluble glucan as the concentration of monomers was increased. In addition, the eluate from experimental resin consisted of IG and Bis-GMA decreased the production of WIG when compared to that from 3G and Bis-GMA based resin. These results indicated that it was possible to develop a composite resin which inhibits plaque accumulation by using some antienzymatic monomers.</p>","PeriodicalId":76655,"journal":{"name":"The Journal of Osaka University Dental School","volume":"29 ","pages":"65-71"},"PeriodicalIF":0.0,"publicationDate":"1989-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13678538","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 analysis for GMDH correction modeling of MKG signals. MKG信号GMDH校正建模的灵敏度分析。
The Journal of Osaka University Dental School Pub Date : 1989-12-01
K Takada, M Nagata, M Sakuda
{"title":"Sensitivity analysis for GMDH correction modeling of MKG signals.","authors":"K Takada,&nbsp;M Nagata,&nbsp;M Sakuda","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The purpose of this paper is to propose application of sensitivity analysis to the GMDH modeling for the correction of distorted kinesiographic signals recorded for inter-lattice points in space, and to evaluate its correction accuracy to estimate coordinates of an inter-lattice point, i.e., an observation, distorted coordinates of a nominal lattice point which is most adjacent to a given inter-lattice point is searched. Variations, i. e., differences, between distorted coordinates of the observations and their concomitant nominals are calculated. Instead of substituting kinesiographic measurements of the nominal and its neighbouring eight lattice points, the sum of the observation and its corresponding variation is substituted into the GMDH model which has been employed for the correction of distorted measurements of the aforementioned lattice point. A stereotaxic device is developed to stimulate mandibular jaw movement and determine position of a magnet transducer of a mandibular kinesiograph (MKG). Nominals of 3-D coordinates of the inter-lattice points are determined by the stimulator together with simultaneous recording of distorted output signals from the MKG which correspond to the nominals. Distorted signals are corrected on the basis of the sensitivity-oriented correction modeling. A mean estimation error of 0.16 mm (s. d., 0.19 mm) is determined for 24 inter-lattice coordinates. Thus, the application of sensitivity analysis to the GMDH modeling is confirmed to be effective.</p>","PeriodicalId":76655,"journal":{"name":"The Journal of Osaka University Dental School","volume":"29 ","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"1989-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13633388","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
Basic study of fluoride-releasing adhesive resin for prevention of root caries: 2. Enhancement of acid resistance of the dentin. 释氟粘接树脂预防牙根龋的基础研究增强牙本质的耐酸能力。
The Journal of Osaka University Dental School Pub Date : 1989-12-01
T Shibatani, T Ui, K Kawai, Y Tsuchitani
{"title":"Basic study of fluoride-releasing adhesive resin for prevention of root caries: 2. Enhancement of acid resistance of the dentin.","authors":"T Shibatani,&nbsp;T Ui,&nbsp;K Kawai,&nbsp;Y Tsuchitani","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The human root dentin was covered with a fluoride-releasing resin (F-resin) and incubated for various periods up to 180 days in phosphate buffer. After removal of the F-resin, resistance of the dentin to decalcification by acetic acid--sodium acetate buffer was assessed by measuring both the amount of calcium dissolved during decalcification and the knoop hardness of dentin after decalcification. The acid resistance progressively increased for 90 days when assessed by measurement of calcium dissolution and for 30 days by measurement of the knoop hardness. The percent inhibition of calcium dissolution achieved by 30 days of incubation was about 90% of the maximal inhibition obtained by incubation in concentrated sodium fluoride solution (2.4 x 10(-2) M). The enhancement of acid resistance was not induced by the resin infiltrated layer of the surface dentin but by the fluoride released from the F-resin into the dentin.</p>","PeriodicalId":76655,"journal":{"name":"The Journal of Osaka University Dental School","volume":"29 ","pages":"109-16"},"PeriodicalIF":0.0,"publicationDate":"1989-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13634607","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
Clinical studies on marginal gingiva around the abutment tooth. 2. Gingival health around proximal surface area adjacent to edentulous space. 基牙周围边缘龈的临床研究。2. 邻近无牙间隙近端表面牙龈健康状况。
The Journal of Osaka University Dental School Pub Date : 1989-12-01
T Yamaga, K Tanaka, M Ohara, M Uji, W Chikagawa, T Nokubi, Y Okuno
{"title":"Clinical studies on marginal gingiva around the abutment tooth. 2. Gingival health around proximal surface area adjacent to edentulous space.","authors":"T Yamaga,&nbsp;K Tanaka,&nbsp;M Ohara,&nbsp;M Uji,&nbsp;W Chikagawa,&nbsp;T Nokubi,&nbsp;Y Okuno","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Sixty subjects (42 subjects with dentures and 18 subjects without dentures) participated in this study. Crevicular fluid flow (Periotron unit: CGF), gingival index (GI), plaque index (P1I) and probing depth (PD) of 209 marginal gingiva around the proximal surface area adjacent to the edentulous space of natural and crowned abutment teeth were measured to evaluate gingival health. The following results were obtained. 1. The GI, P1I and PD in the subjects with dentures were higher than those in the subjects without dentures. The GCF in the subjects with dentures was inclined to be higher when compared to that in the subjects without dentures. 2. In the subjects with dentures, the GCF, GI and PD of crowned teeth were higher than those of natural teeth. On the other hand, in the subjects without dentures, the GCF, GI and PD of crowned teeth were almost equal to those of natural teeth.</p>","PeriodicalId":76655,"journal":{"name":"The Journal of Osaka University Dental School","volume":"29 ","pages":"81-6"},"PeriodicalIF":0.0,"publicationDate":"1989-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13634613","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
Condylar movements during mastication. 咀嚼时的髁突运动。
The Journal of Osaka University Dental School Pub Date : 1989-12-01
T Kuwahara, S Miyauchi, T Maruyama
{"title":"Condylar movements during mastication.","authors":"T Kuwahara,&nbsp;S Miyauchi,&nbsp;T Maruyama","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>To investigate the relationship between mastication and TMJ abnormalities, the incisal point and condylar movements during mastication were analysed in two normal subjects and six patients with stomatognathic dysfunction. The patients with stomatognathic dysfunction were two patients with unilateral anterior disk displacement with reduction, two with unilateral anterior disk displacement without reduction, and two with unilateral osteoarthritis. The incisal point movement was recorded using Sirognathograph Analysing System, and condylar movement was recorded with a pantograph. The movement path of the non-working condyle was shorter than that of the working condyle when patients with unilateral TMJ abnormalities used their non-abnormal side to chew, which resulted in deviation of the turning point (the point where the mouth changes from opening to closing) to the non-chewing side. Also, the convexity of the opening path was influenced by the condylar mobility of the abnormal side TMJ. Posterior dislocation of the condyle of the abnormal side TMJ resulted in a crossover chewing pattern of incisal point movement in the frontal or horizontal planes.</p>","PeriodicalId":76655,"journal":{"name":"The Journal of Osaka University Dental School","volume":"29 ","pages":"87-102"},"PeriodicalIF":0.0,"publicationDate":"1989-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13636728","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 moment to force ratios on stress patterns and levels in the PDL. 力矩与力比对PDL中应力模式和水平的影响。
The Journal of Osaka University Dental School Pub Date : 1989-12-01
K Tanne, H A Koenig, C J Burstone, M Sakuda
{"title":"Effect of moment to force ratios on stress patterns and levels in the PDL.","authors":"K Tanne,&nbsp;H A Koenig,&nbsp;C J Burstone,&nbsp;M Sakuda","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This study was conducted to investigate the effect of moment to force (M/F) ratios on stress distributions in the PDL. Three-dimensional finite element method (FEM) was applied to stress analysis, using a three-dimensional model of the upper central incisor. Five force systems were established to produce different M/F ratios with a constant 100 g lingual force and/or varying labial crown couples, applied at a point on the labial crown surface, 4 mm gingival to the incisal edge. Stresses were determined in the center of the PDL for eight apicogingival levels and at sixteen points around the root. Stress patterns and levels in the PDL changed in response to varying M/F ratios, however, stress values were invariable at the level of the center of resistance. M/F ratio for translation of a tooth produced the most uniform pattern of stress distributions and the minimum stress levels. It is found that the stress level induced in tooth translation is approximately 0.29 times as that in simple tipping of a tooth. Thus, it is shown that the M/F ratio is an important determinant for controlling the stress patterns and levels in the PDL and for achieving optimal tooth movement.</p>","PeriodicalId":76655,"journal":{"name":"The Journal of Osaka University Dental School","volume":"29 ","pages":"9-16"},"PeriodicalIF":0.0,"publicationDate":"1989-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13636729","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
Longitudinal study on craniofacial growth following Le Fort I maxillary osteotomy in adolescent monkeys. Le Fortⅰ型上颌截骨术后青春期猴子颅面生长的纵向研究。
The Journal of Osaka University Dental School Pub Date : 1989-12-01
K Tanne, R Nanda, M Sakuda
{"title":"Longitudinal study on craniofacial growth following Le Fort I maxillary osteotomy in adolescent monkeys.","authors":"K Tanne,&nbsp;R Nanda,&nbsp;M Sakuda","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The present study was conducted to investigate the effects of Le Fort I maxillary osteotomy on craniofacial growth in adolescent monkeys. Twenty monkeys were used, of which eight served as control and twelve for experiment. All monkeys received tantalum implants, whereas experimental monkeys underwent Le Fort I osteotomy. Serial lateral cephalograms were taken before and immediately after surgery, and thereafter every month. Craniofacial growth was investigated by evaluating both repositionings of anatomical landmarks and implants, and dimensional changes. No significant differences between the experimental and control groups were observed in midfacial growth. Maxillary growth was not significantly affected excluding the posterior region of the maxilla. Condylar growth of the mandible was significantly influenced, and the overall length of the mandible in the experimental group was much less as compared to the controls. However, the length of the body of the mandible was not significantly affected, indicating a catch up growth of the mandible. It is shown that craniofacial growth is somewhat retarded, however, the maxilla and mandible experience harmonious growth even after surgery. Thus, it is indicated that the maxillary osteotomy is applicable to growing patients as well as adults, in terms of the craniofacial growth after surgery.</p>","PeriodicalId":76655,"journal":{"name":"The Journal of Osaka University Dental School","volume":"29 ","pages":"33-40"},"PeriodicalIF":0.0,"publicationDate":"1989-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13634610","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
Basic study of fluoride-releasing adhesive resin for prevention of root caries: 1. Transfer of fluorine from the resin to dentin. 释氟粘接树脂预防牙根龋的基础研究氟从树脂转移到牙本质。
The Journal of Osaka University Dental School Pub Date : 1989-12-01
T Shibatani, T Ui, K Kawai, Y Tsuchitani
{"title":"Basic study of fluoride-releasing adhesive resin for prevention of root caries: 1. Transfer of fluorine from the resin to dentin.","authors":"T Shibatani,&nbsp;T Ui,&nbsp;K Kawai,&nbsp;Y Tsuchitani","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Release of fluoride ion from a newly-developed fluoride-releasing resin (F-resin) into phosphate buffer and incorporation of fluorine by the dentin were studied in vitro. The rate of fluoride release (amount of daily release) from a pellet of cured F-resin showed rapid decrease to 1/2 of the initial value by day 6, and then moderate decrease to 1/4 of the initial by day 30. However, the pellet continued to release fluoride at a low but constant rate for more than 520 days. In the first 30 days after F-resin was applied to the dentin surface, large amount of fluorine was concentrated within 100 mu of the subsurface dentin. With longer incubation period, the peak concentration of fluorine at the dentin surface decreased but the depth of penetration increased to about 180 mu by day 180.</p>","PeriodicalId":76655,"journal":{"name":"The Journal of Osaka University Dental School","volume":"29 ","pages":"103-8"},"PeriodicalIF":0.0,"publicationDate":"1989-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13634606","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
Immunological differences between squamous cell cancer patients treated with and without biological response modifier (OK-432): evaluation at a period of more than one year after the last treatment. 使用和未使用生物反应调节剂(OK-432)治疗的鳞状细胞癌患者的免疫学差异:在最后一次治疗后超过一年的时间内进行评估。
The Journal of Osaka University Dental School Pub Date : 1989-12-01
Y Yoshimura, M Oka, T Harada, Y Inou, H Saito, T Odagawa, K Matsumoto
{"title":"Immunological differences between squamous cell cancer patients treated with and without biological response modifier (OK-432): evaluation at a period of more than one year after the last treatment.","authors":"Y Yoshimura,&nbsp;M Oka,&nbsp;T Harada,&nbsp;Y Inou,&nbsp;H Saito,&nbsp;T Odagawa,&nbsp;K Matsumoto","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The cellular immunity of peripheral blood was analyzed to evaluate the efficacy of OK-432 between 3 groups of patients with oromaxillary squamous cell cancer, which were composed of 14 patients in the pretreatment stage, 8 patients who were free from cancer more than one year after the last cancer therapy and had been continuously treated with OK-432, and 14 patients who had undertaken cancer therapy without OK-432 and were also free from cancer for at least one year. As parameters of cellular immunity, leucocyte counts, percent composition of T-cells, percent compositions of T-lymphocyte subsets (OKIal+, OKT3+, OKT4+, and OKT8+) and the ratio of OKT4+ and OKT8+, PPD skin test, and lymphocytic blastogenesis induced by PHA and Con-A, were examined. The results showed no significant difference between the patients treated with and without OK-432. Nor was there any significant difference between the pretreatment group and the posttreatment groups with and without OK-432 treatments in any of the examined immunologic parameters.</p>","PeriodicalId":76655,"journal":{"name":"The Journal of Osaka University Dental School","volume":"29 ","pages":"117-22"},"PeriodicalIF":0.0,"publicationDate":"1989-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13719722","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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