title: Influence of age on tooth autotransplantation with complete root formation.
abstract: The aim of this study was to investigate risk factors with age in the long-term prognosis of autotransplantation of teeth with complete root formation at dental clinics. Participating dentists were asked to provide information on transplantations they had undertaken from 1 January 1990 to 31 December 2010. Data on a total of 708 teeth from 637 patients were collected. The data were screened to exclude patients who were under 25 or 70 years of age and over, those who were smokers or whose smoking habits were unknown, those whose transplanted teeth had incomplete root formation or multiple roots and those with fewer than 25 present teeth post-operation. The participants in this study were 71 men (74 teeth) and 100 women (107 teeth) ranging from 25 to 69 years of age. Third molars were used as donor teeth in 89·0% of the cases. The participants were divided into three age groups of 25-39, 40-54 and 55-69. Survival analysis was conducted using the Kaplan-Meier method, and a log-rank test revealed that there were no significant differences in age groups for men or women. Cox regression analysis indicated that the survival of transplanted teeth was not influenced by age. However, although not statistically significant, the clinical success rate was lower in the 55-69-year-old group than that in the younger groups. These results indicate that if suitable donor teeth are available and the conditions are right, autotransplantation is a viable treatment for missing teeth regardless of the age of the patient.
authors.affiliation: Department of Epidemiology and Public Health, Tokyo Dental College, Chiba, Japan. ko-yoshi@d8.dion.ne.jp
authors.forename: K
authors.initials: K
authors.lastname: Yoshino
authors.forename: N
authors.initials: N
authors.lastname: Kariya
authors.forename: D
authors.initials: D
authors.lastname: Namura
authors.forename: I
authors.initials: I
authors.lastname: Noji
authors.forename: K
authors.initials: K
authors.lastname: Mitsuhashi
authors.forename: H
authors.initials: H
authors.lastname: Kimura
authors.forename: A
authors.initials: A
authors.lastname: Fukuda
authors.forename: I
authors.initials: I
authors.lastname: Kikukawa
authors.forename: T
authors.initials: T
authors.lastname: Hayashi
authors.forename: N
authors.initials: N
authors.lastname: Yamazaki
authors.forename: M
authors.initials: M
authors.lastname: Kimura
authors.forename: K
authors.initials: K
authors.lastname: Tsukiyama
authors.forename: K
authors.initials: K
authors.lastname: Yamamoto
authors.forename: A
authors.initials: A
authors.lastname: Fukuyama
authors.forename: D
authors.initials: D
authors.lastname: Hidaka
authors.forename: J
authors.initials: J
authors.lastname: Shinoda
authors.forename: H
authors.initials: H
authors.lastname: Mibu
authors.forename: Y
authors.initials: Y
authors.lastname: Shimakura
authors.forename: A
authors.initials: A
authors.lastname: Saito
authors.forename: S
authors.initials: S
authors.lastname: Ikumi
authors.forename: K
authors.initials: K
authors.lastname: Umehara
authors.forename: F
authors.initials: F
authors.lastname: Kamei
authors.forename: H
authors.initials: H
authors.lastname: Fukuda
authors.forename: T
authors.initials: T
authors.lastname: Toake
authors.forename: Y
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Y
authors.initials: Y
authors.lastname: Miyata
authors.forename: S
authors.initials: S
authors.lastname: Shioji
authors.forename: M
authors.initials: M
authors.lastname: Toyoda
authors.forename: N
authors.initials: N
authors.lastname: Hattori
authors.forename: H
authors.initials: H
authors.lastname: Nishihara
authors.forename: R
authors.initials: R
authors.lastname: Matsushima
authors.forename: M
authors.initials: M
authors.lastname: Nishibori
authors.forename: O
authors.initials: O
authors.lastname: Hokkedo
authors.forename: M
authors.initials: M
authors.lastname: Nojima
authors.forename: T
authors.initials: T
authors.lastname: Kimura
authors.forename: M
authors.initials: M
authors.lastname: Fujiseki
authors.forename: S
authors.initials: S
authors.lastname: Okudaira
authors.forename: K
authors.initials: K
authors.lastname: Tanabe
authors.forename: M
authors.initials: M
authors.lastname: Nakano
authors.forename: K
authors.initials: K
authors.lastname: Ito
authors.forename: M
authors.initials: M
authors.lastname: Kuroda
authors.forename: T
authors.initials: T
authors.lastname: Takiguchi
authors.forename: K
authors.initials: K
authors.lastname: Fukai
authors.forename: T
authors.initials: T
authors.lastname: Matsukubo
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D008964:Molar, Third / Q000637:transplantation; D011379:Prognosis; D016016:Proportional Hazards Models; D014070:Tooth / Q000637:transplantation*; D014092:Tooth Root / Q000254:growth & development*; D014182:Transplantation, Autologous