Influence of age on tooth autotransplantation with complete root formation
Corresponding Author
K. Yoshino
Department of Epidemiology and Public Health, Tokyo Dental College, Chiba, Japan
Kyushikai, Kuroda Dental Clinic, Tokyo, Japan
Correspondence: Koichi Yoshino, Epidemiology and Public Health, Tokyo Dental College, 1-2-2 Masago, Mihama-ku, Chiba 261-8502, Japan. E-mail: [email protected]Search for more papers by this authorT. Takiguchi
Department of Health Informatics, Niigata University of Health and Welfare, Niigata, Japan
Search for more papers by this authorT. Matsukubo
Department of Epidemiology and Public Health, Tokyo Dental College, Chiba, Japan
Search for more papers by this authorCorresponding Author
K. Yoshino
Department of Epidemiology and Public Health, Tokyo Dental College, Chiba, Japan
Kyushikai, Kuroda Dental Clinic, Tokyo, Japan
Correspondence: Koichi Yoshino, Epidemiology and Public Health, Tokyo Dental College, 1-2-2 Masago, Mihama-ku, Chiba 261-8502, Japan. E-mail: [email protected]Search for more papers by this authorT. Takiguchi
Department of Health Informatics, Niigata University of Health and Welfare, Niigata, Japan
Search for more papers by this authorT. Matsukubo
Department of Epidemiology and Public Health, Tokyo Dental College, Chiba, Japan
Search for more papers by this authorSummary
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.
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