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繊毛上皮を伴ったきわめて稀な下顎歯根嚢胞の1症例
Get PDFapplication/pdfIn this paper a case of radicular cyst with ciliated epithelium partially appearing in the mandibular incisor region of a 76-year-old man is reported. The case was the only one found among 182 radicular cysts observed in Department of Oral Pathology, Matsumoto Dental College. Reports of mandibular radicular cyst with ciliated epithelium are rare in the published literatures. We believe that the histogenesis of the ciliated epithelium was due to metaplasia of the stratified squamous epithelium, elicited by the particular environment of "cyst" and inflammatory reactions.journal articl
臨床診断に苦慮した神経鞘腫の1例
Get PDFapplication/pdfWe report a case of neurilemmoma of the trigonum caroticum occurring in a 34-year-old female. She was referred to our clinic by a general practitioner because of a painless swelling in the right side of the submandibular region persisting for the previous 10 years. The mass in the submandibular region appeared to be unattached to the skin and freely movable. There were no palpable submandibular lymph nodes. This lesion was clinically diagnosed as a benign tumor of the submandibular gland. The removed mass, measuring 50×30×30mm, was encapsulated by a thin fibrous membrane. Histopathologically it was diagnosed as neurilemmoma (Antoni of type A and B). No recurrences have been noted for two years after the surgical procedure. Discussion mainly focuses on the differential diagnosis between neurilemmoma and other lesions of the trigonum caroticum.journal articl
下顎枝矢状分割法における骨縫合ワイヤーの除去について : 骨格性下顎前突症例の2治験例
Get PDFapplication/pdfThis paper reports two severe skeletal class III cases, treated with sagital splitting mandibular ramus osteotomies, with removal of the transosseous wiring after active orthodontic treatment. The reasons for removing the transosseous wiring from these patients are as follows. 1. Protection of patient privacy. 2. Prevention of secondary infection. 3. Prevention of metal allergy. In any case, recently, we have taken off the transosseous wiring in order not to leave a foreign matter in the body. Both cases had good soft-tissue profile and stabilized good occlusion.journal articl
飲料水中フッ素の許容濃度に関する研究 : 第2編 斑状歯の写真診断について
Get PDFapplication/pdfThe conventional classification of tooth mottling is based on clinical assessment of the ratio of the mottled area to the total surface area on the labial portion of the anterior teeth. This method has been criticized, however, for its lack of objectivity. Accordingly, the authors examined the possibility of adapting a computer-based technology used to determine the surface area and circumference of a tract of land from a map. It was found that with this method, the areas of the labial tooth surface and its mottled portion could be measured from photographs accurately, and with no measurement variance on repeated assays.journal articl
接着性ブリッジおよびスプリソトに関する統計調査
Get PDFapplication/pdfA study was made of 158 adhesion bridges and splints, including 33 recalled cases, which had been fabricated for patients at the Prosthodontic Clinic of Matsumoto Dental College from 1982 to 1989. Some of results are as follows. In the 158 cases, 1) 93.7% involved adhesion bridges. 2) 48.1% involved anterior bridges. In the 33 recalled cases, 1) Ni-Cr alloy was used in 67% of the cases. 2) Ester phospholic resin was used in 63% of them. 3) 33% of the cases involved exfoliation.journal articl
昭和62年における冠・架工義歯補綴に関する統計的観察その2 架工義歯について
Get PDFapplication/pdfA study was made of 211 bridges which were fabricated for patients at the Prosthodontic Clinic of Matsumoto Dental College during 1987. Some of the results were as follows: 1) 46.9% of the patients were males and 53.1% were females. 2) 86.7% of the patients were between 20 and 59 years old. 3) 71.1% of the bridges were fabricated as 3-unit bridges. 4) 79.6% were fabricated as 1-pontic bridges. 5) There were fewer bridge retainers for the lower anterior segment than for other segmedts. 6) 53.1% of bridge retainers were fabricated as full cast crowns. 7) 50.2% were fabricated for vital teeth. 8) Of pontics, 31.5% were replaced for the lower molar segment.journal articl
Unusual extractionとして下顎切歯を抜去した2症例
Get PDFapplication/pdfTwo patients received orthodontic treatment after the unusual procedure of extracting the lower incisors. The first case was a young male, whose lower left lateral incisor and three first premolars were removed. The lower left canine and first premolar were used as lower left lateral incisor and canine, respectively. The second case was an adult female, whose lower right central incisor and two upper first premolars were extracted. The three remaining lower incisors were occluded with the four upper incisors. Both cases had good occlusion and profiles, and the patients were satisfied with the results.journal articl
Relationships between development and adaptability to recumbent position brushing in preschool children
Get PDFapplication/pdf健常な幼児の寝かせ磨きに対する適応性と発達年齢,暦年齢との関連性を明らかにするために,保護者に寝かせ磨きをさせ,その状態を観察するとともにVTRにて記録し,AICに基づき解析を行った.調査対象者は,健常な幼児98名である.発達検査は遠城寺式乳幼児分析的発達検査を実施した.結果は以下の通りである.1.歯磨き介助(仕上げ磨きを含む)を1日1回以上行っていた保護者は,89.8%であった.2.寝かせ磨きの際に,観察された幼児の不適応行動のうち,最も多かったのは「手を出して邪魔をする(20.4%)」であった.以下,「頭を動かす(17.3%)」,「体位を変える(17.3%)」,「口を閉じる(15.3%)」,「歯ブラシを〓む(13.3%)」,「泣く(13.3%)」の順であった.3.寝かせ磨きに適応した者は78.6%で,不適応であった者は21.4%であった.4.寝かせ磨きの際に,子供を抑制した保護者は,12.2%認められ,他の87.8%は抑制しなかった.子供が拒否行動を示したにもかかわらず,抑制しなかった保護者は9.2%いた.5.寝かせ磨きの適応性と発達年齢,暦年齢とは,強い関連性が認められた.6.寝かせ磨きの適応・不適応を判別できる最適なカテゴリーは,遠城寺式乳幼児分析的発達検査項目のいずれも2歳6カ月前後であった.7.暦年齢2歳6カ月以上であれば,寝かせ磨きに適応できるレディネスが備わっていることが明らかとなった.journal articl
ラットの皮下組織内に埋入したポリエチレン繊維に対する組織反応
Get PDFapplication/pdfPolyethylene fibers, which could be substituted for the asbestos component in certain pulp devitalizers (Neo-Arsen Black and Neo-Paraform Paste), were embedded subcutaneously in rats, and the tissue reactions were studied histopathologically and electron microscopically. These results were compared with similar observations made using asbestos as a control. Whereas the latter materials were encapsulated, the polyethylene fibers were phagocytized by foreign body giant cells and decreased in quantity with the passage of time. Based upon these observations and a review of the literature on tissue reactions to these materials, it was determined that polyethylene fibers are biologically useful as a substitute for asbestos.journal articl