title: Survival rate in autotransplanted premolars with complete root formation: a retrospective clinical survey.
abstract: The purpose of this study was to analyze the survival rate in autotransplanted premolars with complete root formation in dental clinics. Participating dentists were requested to provide information on transplantations they had undertaken between 1 January 1990 and 31 December 2010. Data on a total of 708 teeth from 637 patients were collected. Data for other tooth types and for teeth with incomplete root formation were eliminated. In this study, data on 40 teeth in 35 patients were analyzed. Participants consisted of 17 men and 18 women ranging from 24 to 79 years in age (mean age, 43.7 years). The cumulative survival rate was 100% at the 5-year mark and 72.7% at 10 years, as calculated by the Kaplan-Meier method. Single-factor analysis revealed that "transplanted to the molar regions" was a significant risk factor (p<0.05) influencing the survival of transplanted teeth. However, a Cox regression analysis showed no significance. The results of this study suggest that, in cases where there is a suitable donor tooth and the oral condition is good, premolar autotransplantation is a viable treatment option, even when there is complete root formation in the donor teeth.
authors.affiliation: Department of Epidemiology and Public Health, Tokyo Dental College, Mihama-ku, Chiba, Japan. ko-yoshi@d8.dion.ne.jp
authors.forename: Koichi
authors.initials: K
authors.lastname: Yoshino
authors.forename: Noriaki
authors.initials: N
authors.lastname: Kariya
authors.forename: Daisuke
authors.initials: D
authors.lastname: Namura
authors.forename: Ichinari
authors.initials: I
authors.lastname: Noji
authors.forename: Kenichiro
authors.initials: K
authors.lastname: Mitsuhashi
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kimura
authors.forename: Akiharu
authors.initials: A
authors.lastname: Fukuda
authors.forename: Ikuo
authors.initials: I
authors.lastname: Kikukawa
authors.forename: Tomoko
authors.initials: T
authors.lastname: Hayashi
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Yamazaki
authors.forename: Morihiro
authors.initials: M
authors.lastname: Kimura
authors.forename: Koken
authors.initials: K
authors.lastname: Tsukiyama
authors.forename: Kazuie
authors.initials: K
authors.lastname: Yamamoto
authors.forename: Ai
authors.initials: A
authors.lastname: Fukuyama
authors.forename: Daijiro
authors.initials: D
authors.lastname: Hidaka
authors.forename: Jun
authors.initials: J
authors.lastname: Shinoda
authors.forename: Hideaki
authors.initials: H
authors.lastname: Mibu
authors.forename: Yozo
authors.initials: Y
authors.lastname: Shimakura
authors.forename: Akihito
authors.initials: A
authors.lastname: Saito
authors.forename: Shuji
authors.initials: S
authors.lastname: Ikumi
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Umehara
authors.forename: Fumio
authors.initials: F
authors.lastname: Kamei
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Fukuda
authors.forename: Tomohiko
authors.initials: T
authors.lastname: Toake
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Miyata
authors.forename: Shogo
authors.initials: S
authors.lastname: Shioji
authors.forename: Masamoto
authors.initials: M
authors.lastname: Toyoda
authors.forename: Natsuo
authors.initials: N
authors.lastname: Hattori
authors.forename: Hideshi
authors.initials: H
authors.lastname: Nishihara
authors.forename: Ryoji
authors.initials: R
authors.lastname: Matsushima
authors.forename: Masakazu
authors.initials: M
authors.lastname: Nishibori
authors.forename: Osamu
authors.initials: O
authors.lastname: Hokkedo
authors.forename: Masahiko
authors.initials: M
authors.lastname: Nojima
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Kimura
authors.forename: Masatsugu
authors.initials: M
authors.lastname: Fujiseki
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Okudaira
authors.forename: Kazunari
authors.initials: K
authors.lastname: Tanabe
authors.forename: Masahiro
authors.initials: M
authors.lastname: Nakano
authors.forename: Koji
authors.initials: K
authors.lastname: Ito
authors.forename: Masahiko
authors.initials: M
authors.lastname: Kuroda
authors.forename: Toru
authors.initials: T
authors.lastname: Takiguchi
authors.forename: Kakuhiro
authors.initials: K
authors.lastname: Fukai
authors.forename: Takashi
authors.initials: T
authors.lastname: Matsukubo
mesh_terms: D000328:Adult; D000368:Aged; D001641:Bicuspid / Q000637:transplantation*; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D016016:Proportional Hazards Models; D012189:Retrospective Studies; D011795:Surveys and Questionnaires; D014092:Tooth Root / Q000254:growth & development*; D014182:Transplantation, Autologous; D016896:Treatment Outcome