Abstract
BackgroundThe amount of bone remaining at the transplant site for autogenous tooth transplantation can facilitate successful healing. Therefore, this retrospective study evaluated the factors influencing the healing of 50 successful autogenous tooth transplantations with insufficient bone support at the transplanted site without a bone graft.MethodsThe factors were classified as pre- and peri-operative factors, and the healing outcomes were clinical and radiographic observations. The factors were statistically analyzed using the chi-square test to identify correlations between the pre- and peri-operative factors and the clinical and radiographic outcomes. The T-test or one-way analysis of variance was used to compare the percent bone change in each factor.ResultsThe results indicated that gingival healing was delayed in the intra-arch transplantations, and pulp obliteration was seen earlier when transplanted in the maxilla. Patients under 18-years-old demonstrated a greater percent bone change than the over 18-year-old patients, while the peri-operative variables did not have a relationship with clinical healing and the amount of bone change over 12 months. Furthermore, the percent bone change significantly increased during the first three months.ConclusionsIn conclusion, pre-operative factors, age and transplant site, influenced the healing rate of autogenous transplanted teeth. In contrast, the peri-operative factors were not related with the clinical and radiographic outcomes. Generating the least trauma to the periodontal ligament cells is the most important concern.
Highlights
The amount of bone remaining at the transplant site for autogenous tooth transplantation can facilitate successful healing
We reviewed 151 Autogenous tooth transplantation (ATT) treatment records performed by the same surgeon at the Faculty of Dentistry, Mahidol University, between 1997–2007 with informed consent
Nine recipient sites were in the maxilla and 41 recipient sites were in the mandible, (24 intra-arch and 26 inter-arch transplantations)
Summary
The amount of bone remaining at the transplant site for autogenous tooth transplantation can facilitate successful healing. Autogenous tooth transplantation (ATT) provides various advantages over other treatment options. This treatment results in the esthetics of a natural tooth, is less expensive, and requires less treatment time. The recommended procedure [6, 7] is to extract a donor tooth and transplant it into a prepared recipient site in an atraumatic fashion. The amount of supporting bone can facilitate the healing and survival of the transplanted tooth [6]. Delayed transplantation can result in alveolar bone resorption at the recipient site when the socket bone is extremely reduced to seat the donor tooth [8]. Various clinical methods, including bone autograft and split osteotomy, have been suggested to promote bone regeneration in such cases [9, 10], these bone grafting techniques do not significantly accelerate or improve bone regeneration compared with
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