@article{oai:niigata-u.repo.nii.ac.jp:00002985, author = {富沢, 美惠子 and 山田, 幸江 and 登内, 喜美江 and 渡辺, ヒロ子 and 野田, 忠}, issue = {1}, journal = {小児歯科学雑誌, 小児歯科学雑誌}, month = {Mar}, note = {生後1カ月8日,5カ月27日の2例の男児のRiga-Fede病に対して,乳切歯切縁部を光重合レジンで被覆することによって治癒した症例の臨床経過について報告する。この方法は,外来で簡単に行うことができ,歯質の薄い先天性歯の削合による仮性露髄の危険性もなく有効であると思われた。また,昭和54年9月から昭和62年8月までの8年間に,新潟大学歯学部附属病院小児歯科外来で経験した先天性歯の7症例について,予後調査および抜去歯の病理組織所見を含めて報告する。(1) 性別では,男児3例女児4例で,初診時年齢は,生後21日から3カ月19日であった。(2) 出生時体重は,1例のみ低出生体重児であった。(3) 先天性歯は,出産歯6例,新生歯1例で,すべて下顎乳中切歯であり,右側のみ5例,左側のみ1例,両側性1例であった。過剰歯は認められなかった。(4) Riga-Fede病は3例に認められた。(5) 先天性歯の予後観察では,1例が自然脱落,2例が抜歯され,残存している4例中3例には,咬耗が著しかった。(6) 早期に脱落ないし抜歯されたものでは,隣在歯の近心傾斜や空隙の狭少化が認められた。(7) 抜歯した先天性歯の未脱灰薄切切片と,マイクロラジオグラムによる所見では,歯質は非常に薄く,石灰化も不良で,歯根形成もほとんど認められなかった。, This report concerned 2 cases (1-month and 8-day-old boy and 5-month and 27-day-old boy) of Riga-Fede's disease. The cases were treated with photopolymerized resin coverage of the incisal edges. Generally, the treatment methods for Riga-Fede's disease are discing and extraction of the traumatized teeth. The photopolymerized resin coverage proved to help in the rapid healing of the ulcerations. This method is useful because it is easy and is able to avoid a false pulp exposure of the hypoplastic natal and neonatal teeth by discing. 7 cases of natal and neonatal teeth were encountered at the Pedodontic Clinic of Niigata University Dental Hospital during 8 years from September 1979 to August 1987. 1) 7 cases were 3 boys and 4 girls, aging from 21 days after birth to 3 months 19 days. 2) Only one baby had a low birth weight. 3) The natal teeth accounted for 6 cases and the neonatal teeth accounted for 1 case. All were lower central primary incisors (5 on the right side, 1 on the left side and 1 bilateral). There were no supernumerary teeth. 4) 5 cases were of hypoplastic teeth. 5) Riga-Fede's disease was recognized in 3 cases. 6) The prognosis was 1 case of shedding, 2 cases exracted and 4 cases remaining. 7) Mesial inclination of the neigboring teeth and narrowness of the extracted space were observed in the cases where extraction was performed at an early age. 8) Microradiogram and undemineralized specimens of the extracted tooth revealed that the tooth was very thin and mineralization was so poor and there was almost no root formation.}, pages = {182--190}, title = {切縁部レジン被覆によるRiga-Fede病の治療ならびに先天性歯7症例について}, volume = {27}, year = {1989} }