Aichi Gakuin Daigaku Shigakkai shi最新文献

{"title":"[Process of the tooth brushing habit formation in children. 2. Factors forming the behavior of tooth brushing in children].","authors":"Y Suzuki","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The purpose of this study was to find in the factors forming the habit of tooth brushing in children. Questionnaires about the habit of tooth brushing were collected in Nagoya and the suburbs from mothers of kindergarten pupils aged from one to six. These data were analysed by the second class of Hayashi's quantifying theory. The results of this study were summarised as follows: 1. Habit of tooth brushing: 1) A high correlation ratio was obtained in the discriminatory efficiency of the habit of tooth brushing, at ages one to three this was 0.44 and for ages four to six it was 0.47. 2) The following six items were chosen in relation to the habit formation of tooth brushing at ages one to three, \"motive for starting tooth brushing\", \"frequency of tooth brushing per day on the average\", \"co-operative of the child towards its mother's help\", \"positive attitude towards tooth brushing\", \"experienced guidance in tooth brushing from its mother\", \"experienced guidance in tooth brushing from a dentist or dental hygienist\". 3) Similarly for ages four to six, the following four items were chosen, \"frequency of tooth brushing per day on the average\", \"persons who actually brush the children's teeth at night\", \"attitude of the child towards tooth brushing\", \"experienced guidance in tooth brushing from a dentist or dental hygienist\". 2. Ability of tooth brushing: 1) A comparative high correlation ratio was obtained in the discriminatory efficiency of the ability of tooth brushing, at ages one to three this was 0.37 and for ages four to six it was 0.20. 2) The following five items were chosen in relation to the ability of tooth brushing at ages one to three, \"age\", \"motive for the start of tooth brushing\", \"mother's attitude to child not brushing its teeth\", \"frequency of using tooth paste\", \"experienced guidance in tooth brushing from a dentist or dental hygienist\". 3) Similarly for ages four to six, the following five items were chosen, \"age\", \"persons who actually brush the children's teeth at night\", \"co-operative attitude of the child towards its mother's help\", \"attitude of the child towards tooth brushing\", \"frequency of using tooth paste\".</p>","PeriodicalId":75458,"journal":{"name":"Aichi Gakuin Daigaku Shigakkai shi","volume":"28 2","pages":"663-82"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289443","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}

{"title":"[Two cases of crowding with disharmony between the upper and lower jaws].","authors":"K Tanaka,&nbsp;S Tanaka","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Since the malocclusion involved with a disharmony between the upper and lower jaws is generally treated with growth stimulation and inhibition to correct the disharmony, orthodontic treatment for this type of malocclusion is usually started at an early age. On the other hand, the case of crowding which has no such problem is caused by so called arch length discrepancy; discrepancy between teeth and jaw sizes. This type of maloccusion, therefore, is usually treated with extraction of teeth and in most of these cases treatment is started after the permanent dentition is established and growth and development of the maxilla is fairly well completed. Actually, however, case of crowding often have skeletal disharmony as a potential problem, in which cases the orthopedic approach is thought to be better if started rather early. This is because the orthodontic approach alone is not enough to solve skeletal problems, which problems are better handled before the teeth are moved. This procedure can prevent excessive tooth movement. The two cases reported here with crowding as the chief complaint were treated by the early orthopedic approach for potential skeletal problems prior to orthodontic correction. The results indicate the effectiveness of this procedure.</p>","PeriodicalId":75458,"journal":{"name":"Aichi Gakuin Daigaku Shigakkai shi","volume":"28 2","pages":"683-95"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289444","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}

{"title":"[A case of gingival hyperplasia induced by nifedipine].","authors":"H Katayama,&nbsp;Y Kinoshita,&nbsp;M Kaneko,&nbsp;N Suzuki,&nbsp;K Kakami,&nbsp;Y Takai","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Nifedipine is a new agent belonging to the calcium antagonist group of drugs, applied clinically to circulatory disorders, such as essential hypertension, renal hypertension and angina cordis and has been rapid in gaining popularity in Japan. On the other hand, as do all effective drugs, this drug has side effects, one of which is gingival hyperplasia. The clinical findings are extremely similar to the gingival hyperplasia induced by phenytoin used for the treatment of epilepsy. A 46-year-old man was referred to our hospital whose chief complaint was gingival swelling. He had been receiving nifedipine for his hypertension for about one year. He was diagnosed as having the side-effects of nifedipine due to being treated with 20 mg/day for a year. Nifedipine was discontinued and scaling and oral hygiene resulted in healing.</p>","PeriodicalId":75458,"journal":{"name":"Aichi Gakuin Daigaku Shigakkai shi","volume":"28 2","pages":"697-701"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289445","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}

{"title":"[Clinical study on the treatment of hypersensitive dentin by GaAlAs laser diode using the double blind test].","authors":"M Yamaguchi,&nbsp;M Ito,&nbsp;T Miwata,&nbsp;N Horiba,&nbsp;T Matsumoto,&nbsp;H Nakamura,&nbsp;M Fukaya","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This study was conducted to evaluate the results of treating hypersensitive dentin with a GaAlAs semiconductor laser diode using the double blind test. For this purpose, sixty-seven teeth were examined. Thirty of the teeth were treated with laser irradiation (active group), while the other 36 were not (dummy group). The irradiation equipment was obtained from J. Morita Co. and operated at a continuous wavelength of 790 nm and a laser strength of 30 mW. The following results were obtained: After two hours of laser irradiation, 40% of the active group and 13.9% of the dummy group showed effective results. After one day, these values were 36.9% and 13.9%, and after 5 days, 43.3% and 19.4%, respectively. A overall evaluation indicated these values to be 60.0% and 22.2%, respectively. In evaluating these four results, significant differences are apparent between the active and dummy groups. The present results indicate that laser irradiation may possibly be effective in decreasing pain when treating hypersensitive dentin.</p>","PeriodicalId":75458,"journal":{"name":"Aichi Gakuin Daigaku Shigakkai shi","volume":"28 2","pages":"703-7"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289446","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}

{"title":"[Good results using maxillary tongue guard for Class III patients with comparatively shallow overbite].","authors":"K Ito","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A maxillary tongue guard was used in conjunction with a chin-cap for the treatment of shallow overbite. Correction of the overbite proved to be very rapid. Follow-up treatment also proceeded very smoothly. The tongue guard has been designed to cure the habit of tongue-thrusting, to prevent tongue retraction and lifting of the tongue posture, and to relieve the tongue pressure against the lower anterior teeth, so that the tongue pressure is communicated to the upper dentition and maxilla. The following results were observed. 1. Lower lip pressure caused lingual movement of the mandibular anterior teeth, while elimination of tongue pressure lengthened to mandibular anteriors. 2. Retraction of the tongue posture and hyoid bone resulted in the retraction of the mandible. 3. Communication of tongue pressure resulted in mesial movement of the maxillary dentition and stimulated the growth of the maxilla.</p>","PeriodicalId":75458,"journal":{"name":"Aichi Gakuin Daigaku Shigakkai shi","volume":"28 2","pages":"581-97"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289529","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}

{"title":"[Long term results of skeletal profile changes occurring from chin cap therapy of Japanese female skeletal Class III cases].","authors":"S Murata,&nbsp;R Iwata,&nbsp;S Hayakawa,&nbsp;Y Fuwa,&nbsp;S Goto,&nbsp;N Suzuki","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Unlabelled: </strong>This cephalometric study was made to investigate the effects of chin cap therapy. The subjects were 21 Japanese females of skeletal class III who were treated without tooth extraction. The periods before treatment, during improvement of anterior teeth and after treatment were compared to see where and how effective the therapy had been.</p><p><strong>Results: </strong>1. Characteristics before the treatment period: These cases had backward position of the maxilla and forward position of the mandible with over growth. In the denture pattern there was a remarkable labioaxiversion of U-1. 2. Characteristics after the treatment period: There was improvement in the backward position of the maxilla. In the forward mandible, once these cases improved their position by improving the overjet, there was a regression followed by gradual forward growth as treatment continued. The denture pattern showed labioaxiversion of U-1 as before. 3. Before the treatment period, these cases showed large Go-Po and Ar-Go in the dimensional linear analysis. After treatment, these analysis showed normal sizes.</p>","PeriodicalId":75458,"journal":{"name":"Aichi Gakuin Daigaku Shigakkai shi","volume":"28 2","pages":"573-9"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289528","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}

{"title":"[Study on porcelain veneer restorations. 2. Influence of hydrofluoric acid on bonding strength at the porcelain-resin interface].","authors":"A Gomi,&nbsp;M Ikeda,&nbsp;N Takeuchi,&nbsp;Y Ban,&nbsp;K Kamiya,&nbsp;K Kanamori,&nbsp;T Asai,&nbsp;A Senda","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Recently, porcelain veneer restoratives have been introduced to the general practice, and their clinical performances have been confirmed through many longterm clinical investigations. It is expected that porcelain veneer restorations will perform successfully in esthetic, conservative and abhesive dentistry. It is an well known fact that the micro-mechanical bonding strength at the porcelain-resin interface which is achieved through the application of hydrofluoric acid to the porcelain surface is quite a strong bonding mechanism. However, there are very few studies reporting on the acid treatment of porcelain surfaces. The authors have been studying the influence of hydrofluoric acid on porcelain surfaces, and in our previous report we reported, the degrees of corroded porcelain treated with different concentrations of hydrofluoric acid for different durations of application. In the present study, shear bonding strength was measured between resin cements and porcelain surfaces treated with different concentrations (4, 6, 8%) of hydrofluoric acid and for different durations (1 to 24 min.), and the appropriate treatment of porcelain surfaces with regard to the bonding strength was determined. The results obtained were as follows. 1. As the treating time increased with any concentration (4, 6, 8%) of hydrofluoric acid, corrosion of the porcelain surface became more intense. Hardly any evidence of corrosion was observed on any porcelain surface treated for one minute, so it seems that the treatment of porcelain surfaces using 4 to 8% hydrofluoric acids should be continued for over three minutes. 2. Observation of the surface profile by SEM showed no significant differences between the surfaces treated for 3, 6, 12 and 24 minutes. 3. It was not clear as to how the differences of hydrofluoric acid concentrations (4, 6, 8%) plus the differences in the kinds of porcelain (Super Porcelain AAA, NORITAKE Co. Ltd., VMK 68, Vita Zahnfabrik Gmbh & Co., Cosmotech Porcelain, G-C Co. Ltd.) had affected the differences in the amount of corrosion. 4. Regarding to the shear bonding strength at the porcelain-resin cement interface, in comparison with control specimens which were only sandblasted, about all two to three times higher bonding strength were obtained in specimens treated with any concentration (4, 6, 8%) of hydrofluoric acids and for any duration between 3 to 24 minutes. Specimens treated for one minute were an exception.</p>","PeriodicalId":75458,"journal":{"name":"Aichi Gakuin Daigaku Shigakkai shi","volume":"28 2","pages":"619-30"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289440","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}

{"title":"[Initial preparation as an important procedure for the elimination of aetiologic factors in periodontal disease].","authors":"T Noguchi","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":75458,"journal":{"name":"Aichi Gakuin Daigaku Shigakkai shi","volume":"28 2","pages":"543-6"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289527","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}

{"title":"[Lysis of the cells of Propionibacterium acnes by the culture supernatant of Actinomyces viscosus].","authors":"K Kojima","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Ecologically there seemed to be antagonistic relations between Actinomyces viscosus and Propionibacterium acnes. The Supernatant of A. viscosus was shown to possess a lytic activity on the growing cells of P. acnes. The results obtained were as follows: 1. Only a small number of P. acnes was isolated in samples from which numerous A. viscosus were isolated. On the other hand, P. acnes were frequently isolated in samples from which few cells of A. viscosus were isolated. 2. The concentrate with ammonium sulfate of the anaerobic culture supernatant of A. viscosus was used as a lytic factor. When P. acnes was grown in broth with the lytic factor, for a short time optical density of the culture increased and then decreased. Release of 3H-thymidine was observed from the radio-labeled cells of P. acnes, suggesting the release of DNA due to the disruption of the cells. 3. Gram positive staining during early stage of cell lysis began to turn to Gram negative and disrupted cells were observed at later stages. Using an electronic microscope it was observed that cell poles were broken with cytoplasm flowing out. 4. The lytic factor lysed the growing cells, but did not lyse either the resting cells or the dead cells. 5. Radio-labeled high molecular substances were released into the supernatant from the growing cells of P. acnes which were radio-labeled by 3H-glycerol or 14C-alanine. This suggested the release of lipoteichoic acid or peptidoglycan. 6. The lytic factor did not release radio-labeled substances from the isolated peptidoglycan which was radio-labeled by both 3H-glucosamine and 14C-alanine. 7. Lysis of P. acnes by the lytic factor was inhibited by adding chloramphenicol which was assumed to inhibit the release of lipoteichoic acid. 8. From the results mentioned above, the lytic factor seemed to cause the cellular lysis of P. acnes by the release of lipoteichoic acid followed by activation of the autolytic enzyme. This mode of action is similar to that of penicillin, but the molecule of the lytic factor seemed to have the nature of protein.</p>","PeriodicalId":75458,"journal":{"name":"Aichi Gakuin Daigaku Shigakkai shi","volume":"28 2","pages":"599-611"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289530","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}

{"title":"[Sensory responses to Nd:YAG laser irradiation in humans].","authors":"A Ito,&nbsp;K Kakami,&nbsp;K Yoshida,&nbsp;M Fukaya","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Pain and detection thresholds upon Nd:YAG laser irradiation were studied in healthy human subjects. The output power was set at 100 mW (1.36 W/cm2), 300 mW (4.11 W/cm2), 600 mW (8.22 W/cm2), 800 mW (11.0 W/cm2) and 1,000 mW (13.7 W/cm2). The duration was 5 seconds. The irradiation was done to the hand dorsum using the non-contact method (distance between the subject and the laser tip was 5.0 mm). After irradiation, the detection threshold was about 600 mW and the pain threshold was about 1,000 mW. The skin temperature was 34.9 +/- 0.64 degrees C before irradiation and 38.0 +/- 0.45 degrees C after a 5-sec-irradiation at 1,000 mW. No skin damage was observed after the irradiations.</p>","PeriodicalId":75458,"journal":{"name":"Aichi Gakuin Daigaku Shigakkai shi","volume":"28 2","pages":"613-7"},"PeriodicalIF":0.0,"publicationDate":"1990-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13289531","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}