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KMID : 0362720040420110779
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Journal of the Korean Dental Association
2004 Volume.42 No. 11 p.779 ~ p.789
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Jung Jae-yong
Kim Eui-Seong
Lee Seung-Jong
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Abstract
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The purpose of this study was to evaluate the prognosis and the cause of failure in 182 auto-transplanted teeth. A total of 182 cases, which received the auto-transplantation in Department of Conservative Dentistry, Yonsei Dental Hospital, were included in this study. All transplants were performed using a computer-aided rapid prototyping technique with an average extra-oral time of 7.58 minutes. The follow-up was performed for at least 2 months up to 60 months after the surgery. The prognosis was divided into those that experienced complete healing, incomplete healing, uncertain healing, and failure. The initial stability, root resorption, ankylosis were also analyzed.
Most of transplanted teeth showed complete healing between 2 months and 8 months. A good initial stability of the transplanted teeth showed better initial healing than those with a poor initial stability. The average of the extra-oral time was 7.58 min. (from immediate up to 25 min.) No relationship was found between the extraoral time and root resorption (4 cases, 2.4%) or ankylosis(18 cases, 10.7%) within this experimental time period. Nine cases(4.5%) failed. Within the scope of this study, autotransplantation seems to be a very useful method for replacing missing teeth if the extra-oral time and the other factors are well controlled
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KEYWORD
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autotransplantation, computer-aided rapid prototyping, donor tooth, extra-oral time, tooth model
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