title: Gender difference in tooth autotransplantation with complete root formation: a retrospective survey.
abstract: Gender-related risk factors in the survival of transplanted teeth with complete root formation have not yet been identified. The purpose of this study was to investigate gender differences in tooth autotransplantation at dental clinics. We asked participating dentists to provide information on transplantations they had undertaken from 1 January 1990 to 1931 December 2010. The data were screened to exclude patients who underwent more than one transplantation, smokers or those whose smoking habits were unknown, patients under 30 or who were 70 years old and over, cases where the transplanted teeth had incomplete root formation or multiple roots and those with fewer than 20 present teeth post-operation. We analysed 73 teeth of 73 males (mean age, 47.2 years) and 106 teeth of 106 females (mean age, 45.3 years) in this study. The cumulative survival rate and mean survival time were calculated using the Kaplan-Meier method. The cumulative survival rate for males was 88.3% at the 5-year mark, 64.8% at 10 years and 48.6% at 15 years; for females, it was 97.2% at the 5-year mark, 85.9% at 10 years and 85.9% at 15 years. A log-rank test indicated the difference between males and females to be significant (P = 0.011). There was also a significant difference in the main causes for the loss of transplanted teeth: males lost more transplanted teeth due to attachment loss than females (P < 0.05). These results indicate that males require more attention during the autotransplantation process, particularly at the stage of pre-operation evaluation and that of follow-up maintenance.
authors: Department of Epidemiology and Public Health, Tokyo Dental College, Chiba, Japan. ko-yoshi@d8.dion.ne.jp
authors: K
authors: K
authors: Yoshino
authors: Y
authors: Y
authors: Ishizuka
authors: N
authors: N
authors: Sugihara
authors: N
authors: N
authors: Kariya
authors: D
authors: D
authors: Namura
authors: I
authors: I
authors: Noji
authors: K
authors: K
authors: Mitsuhashi
authors: H
authors: H
authors: Kimura
authors: A
authors: A
authors: Fukuda
authors: I
authors: I
authors: Kikukawa
authors: T
authors: T
authors: Hayashi
authors: N
authors: N
authors: Yamazaki
authors: M
authors: M
authors: Kimura
authors: K
authors: K
authors: Tsukiyama
authors: K
authors: K
authors: Yamamoto
authors: A
authors: A
authors: Fukuyama
authors: D
authors: D
authors: Hidaka
authors: J
authors: J
authors: Shinoda
authors: H
authors: H
authors: Mibu
authors: Y
authors: Y
authors: Shimakura
authors: A
authors: A
authors: Saito
authors: S
authors: S
authors: Ikumi
authors: K
authors: K
authors: Umehara
authors: F
authors: F
authors: Kamei
authors: H
authors: H
authors: Fukuda
authors: T
authors: T
authors: Toake
authors: Y
authors: Y
authors: Takahashi
authors: Y
authors: Y
authors: Miyata
authors: S
authors: S
authors: Shioji
authors: M
authors: M
authors: Toyoda
authors: N
authors: N
authors: Hattori
authors: H
authors: H
authors: Nishihara
authors: R
authors: R
authors: Matsushima
authors: M
authors: M
authors: Nishibori
authors: O
authors: O
authors: Hokkedo
authors: M
authors: M
authors: Nojima
authors: T
authors: T
authors: Kimura
authors: M
authors: M
authors: Fujiseki
authors: S
authors: S
authors: Okudaira
authors: K
authors: K
authors: Tanabe
authors: M
authors: M
authors: Nakano
authors: K
authors: K
authors: Ito
authors: M
authors: M
authors: Kuroda
authors: K
authors: K
authors: Fukai
authors: T
authors: T
authors: Matsukubo
mesh_terms: D000328:Adult; D000368:Aged; D001641:Bicuspid / Q000473:pathology / Q000637:transplantation; D005260:Female; D005500:Follow-Up Studies; D006085:Graft Survival; D006801:Humans; D008297:Male; D008875:Middle Aged; D008963:Molar / Q000473:pathology / Q000637:transplantation; D009805:Odontogenesis / Q000502:physiology; D017622:Periodontal Attachment Loss / Q000150:complications; D011379:Prognosis; D012189:Retrospective Studies; D012307:Risk Factors; D012737:Sex Factors; D013997:Time Factors; D014070:Tooth / Q000637:transplantation*; D016388:Tooth Loss / Q000209:etiology; D014092:Tooth Root / Q000033:anatomy & histology*; D014182:Transplantation, Autologous; D016896:Treatment Outcome