RADIOGRAPHIC OBSERVATIONS OF LOWER AND UPPER PREMOLARS WITH SUPERNUMERARY ROOTS REPORT OF A CASE
An unusual case of multirooted premolars has been reported. The patient was 31-year-old man and all his premolars in the maxilla showed three-rooted and all premolars in the mandible showed double-rooted appearance radiographically. Survey was also carried out on the cases of premolars with supernum...
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Published in | Shika Hoshasen Vol. 19; no. 1; pp. 59 - 62 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | Japanese |
Published |
Japanese Society for Oral and Maxillofacial Radiology
1979
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Abstract | An unusual case of multirooted premolars has been reported. The patient was 31-year-old man and all his premolars in the maxilla showed three-rooted and all premolars in the mandible showed double-rooted appearance radiographically. Survey was also carried out on the cases of premolars with supernumerary roots in the maxilla and the mandible reported in Japan during the past 42 years (1935-1977). Multirooted lower premolars showed rather variable root bifurcation compared with upper premolars and it was also emphasized that these findings should be taken into consideration as clinical care. |
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AbstractList | An unusual case of multirooted premolars has been reported. The patient was 31-year-old man and all his premolars in the maxilla showed three-rooted and all premolars in the mandible showed double-rooted appearance radiographically. Survey was also carried out on the cases of premolars with supernumerary roots in the maxilla and the mandible reported in Japan during the past 42 years (1935-1977). Multirooted lower premolars showed rather variable root bifurcation compared with upper premolars and it was also emphasized that these findings should be taken into consideration as clinical care. |
Author | KONDOH, Toyokazu IMAI, Kazuhiko FUJIKI, Yoshishige GOTOH, Toshifumi KISHI, Kanji KAWAHARA, Kenji |
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References | 4) 石塚英二, 島本禎三, 太田宜, 緒方終造, 宮嶋巧, 高橋敏夫: 第二小臼歯の四根を有する一症例に就て, 臨歯, 46: 29, 1959. 12) 桐野忠大: 歯胚の移植実験と歯の形を決める因子の探求 (総説): 歯科基礎医誌, 12: 55, 1960. 5) 藤田恒太郎: 歯の異常と奇形第4版, P.16, 医歯薬出版, 東京, 1968. 6) 川崎孝一, 川口叔宏, 永沢恒: 小臼歯部に現われた過剰根 (多根歯症) の臨床的観察, 口病誌, 36: 347, 1969. 9) Thoma, K. H. & Goldman H. M.: Oral Pathology, 6th Ed., Mosby, St. Louis, p.814, 1960. 10) 佐久間正敏, 長谷川年長: 三根を有する上顎第二小臼歯が同時に発現した1症例, 臨歯, 211: 33, 1956. 11) Terra, M. de.: Beitrage zu einen Odonto graphie der Menschenrassen, p.240, 1905. 1) 藤田恒太郎, 桐野忠大: 歯の解剖学第13版, P.84, 金原出版, 東京, 1967. 2) Hess, W. & Ziircher, E.: The anatomy of the root-canals of the teeth, p.27, London, 1925. 3) 岡本治, 長田淳一郎: 下顎小臼歯の根管並びに二根について, 歯界展望, 7: 400, 1950. 7) 山下宰, 山崎登, 田中正男, 田中英男: 対称性に発現した3根性上顎第一小臼歯例, 歯科医学, 25: 190, 1962. 8) 下総高次, 六人部慶夫, 保田和雄: 多根性下顎第一小臼歯と上顎第二小臼歯, 阪大歯誌, 4: 471, 1959. |
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Snippet | An unusual case of multirooted premolars has been reported. The patient was 31-year-old man and all his premolars in the maxilla showed three-rooted and all... |
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Subtitle | REPORT OF A CASE |
Title | RADIOGRAPHIC OBSERVATIONS OF LOWER AND UPPER PREMOLARS WITH SUPERNUMERARY ROOTS |
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