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スミシコン®の臨床応用 : 長期経過症例について
Get PDFapplication/pdfClinical applications were performed on 46 cases at the Dental Hospital of Matsumoto Dental College between May 1985 and October 1987, and at present these are more than five years postoperative. Nine cases responded to summons, four representative cases were selected for this study, and evaluation was performed by our postoperative evaluation system. The results show good clinical progress and Sumicikon appears to be an effective and excellent materials for clinical application.journal articl
本学小児歯科における歯牙外傷の臨床統計的観察
Get PDFapplication/pdfClinicostatistical observation was made of trauma patients who had been examined at the (Outpatient Department) of Pedodontics of our college between January 1991 and April 1993. The following conclusions were obtained: 1) Sex ratio was 1.01: 1, i. e an almost equal number of male and female patients. 2) Injury by age-3～5-year-old infants (late stage of infancy) were most prevalent: infants below 6 years represented 60% of all patients, with overwhelming predominance of the low age-group. 3) Cause of injury-falling down followed by contusion were the main cause and effect of injury: the fact that generally, infants with immature mobility have a high tendency toward active conduct necessarily leads to a high incidence of contusion and falling down. 4) Site of injury-maxillary anterior teeth region was most frequently injured; also by age, 3～5-year-old infants (late stage of infancy) were injured in the above-mentioned region. 5) Mode of injury-perturbation and mucosal rupture were frequent; therefore, treatment at the first examination often included observation of the course, fixation, suture and the like.journal articl
小児の咬合分析に関する予備的研究 : 第1報 T-Scanの応用
Get PDFapplication/pdfIn the present study, the relationship of items for T-Scan measurement with masticatory ability value, maximum occlusal force and masticatory area was analyzed in adults, as a preliminary measure to examining the applicability of the T-Scan system to infants. The following conclusions were obtained; 1. Correlation coefficients between occlusal contact area and masticatory ability and between maximum occlusal force and masticatory ability were r = 0.755 and r = 0.792, respectively, both being significant to 5%. 2. Correlation coefficients between occlusal contact point number and maximum occlusal. force and between occlusal contact point number and occlusal contact area were r = 0.835 and r = 0.813, respectively, both being significant to 5%. 3. In terms of the factor (T-Scan) in occlusal contact time, correlation coefficients between total front-back (TFB) and right front-back (RFB) and between primary front -back (PFB) and RFB were r = 0.844 and r = 0.862, respectively, both being significant to 5%. The correlation coefficient between TRB and left front-back (LFB) was r = 0. 899, significant to 1%. 4. In terms of the factor (T-Scan) in occlusal contact force, correlation coefficient between right force (RF) and left force (LF) was r = 0.907, significant to 1%.journal articl
有害金属拮抗薬DMSAおよびDMPSによるヒ素の排泄効果 : ラットとマウスの比較
Get PDFapplication/pdfAmong many metal binding agents, 2, 3-dimercaptosuccinic acid (DMSA) and 2, 3 -dimercapto-1-propanesulfonic acid (DMPS) have been reported as effective antagonists against toxicity of several metals including arsenic. Rats appear to have a metabolic pathway different from that of mice in detoxicating arsenic in that rats accumulate arsenic in the blood (erythrocytes). Two experiments were carried out in order to determine the effects of DMSA and DMPS on the arsenic poisoned rats and to compare the results obtained with those of mice. In the first experiment, using arsenic poisoned rats, both DMSA and DMPS promoted the excretion of arsenic, in contrast to the results of mice previously reported in which those antidotes only accelerated the excretion of arsenic (Table 1). In the second experiment, both groups of rats and mice were given mixture of arsenic and DMSA or DMPS, respectively. The results showed that in mice 100% of dosed arsenic was excreted by DMPS within 48 hrs, while in rats 82% of the dose was eliminated by DMPS and about 20 % still remained within some of the tissues after 72 hrs (Tables 2, 3 and 4).journal articl
乳犬歯のEnamel hypoplasia
Get PDFapplication/pdfFrom observation of frequency and measurement of the lengths and widths of enamel hypoplasia on the maxillary and mandibular deciduous canines, extracted from 50 Indians' skulls, the following results were obtained. 1) Enamel hypoplasia occurred in 15% of the maxillary deciduous canines and 44% of the mandibular deciduous canines. 2) Symmetrical cases of enamel hypoplasia occurred in 8.0% of the maxillary deciduous canins and in 34% of the mandibular deciduous canines. The enamel hypoplasia on maxillary deciduous canines showed some association with the enamel hypoplasia on mandibular deciduous canines. 3) The average length of enamel hypoplasia was 1.8 mm in the maxillary canines and 2.3 mm in the mandiblar canines. 4) The average width of enamel hypoplasia was 1.8 mm in the maxillary canines and 2.3 mm in the mandibular canines.journal articl
上顎犬歯と第一小臼歯の移転が両側に生じた症例
Get PDFapplication/pdfTransposition has been described as an interchange of position of permanent teeth and is a relatively rare dental anomaly. This article presents an anterior cross bite case with bilateral canine-first premolar transposition. After correction of anterior cross bite, both sides of upper canine were tracted to mesial side. The upper first premolars were extracted because there was insufficient space. Treatment was finished when Class II molar relationship was reached. As a result, good, stable occlusion was achieved. We will continue to observe this case, especially the occlusal relationship.journal articl
Basic Dental Science Education
Get PDFapplication/pdfFor convenience in comparative rating the basic science subjects were considered separately general and oral anatomy, general and oral histology, embryology, general and oral physiology, biochemistry, and oral biochemistry, microbiology, and oral microbiology, dental pharmacology, general and oral pathology, dental material, and general and oral hygiene, oral pathology, dental materials, dental pharmacology, and hygiene while better classified as the clinical science, was committed to clinical visitors. Including dental materials, oral pathology. But dental pharmacology and oral hygine as basic science, that an average of 17.5 percent of the entire curriculum in four years course was devoted to the teaching of the basic science. Basic science, intermediate science and clinical science share an interdependent relationship. The intermedeate sciences include oral pathology, dental material science, dental pharmacology and oral hygiene. (Fig. 3)journal articl
