Clinical outcome of intentional replantation with preoperative orthodontic extrusion: a retrospective study
- Authors
- Choi, Y. H.; Bae, J. H.; Kim, Y. K.; Kim, H. Y.; Kim, S. K.; Cho, B. H.
- Issue Date
- 12월-2014
- Publisher
- WILEY
- Keywords
- extraction technique; intentional replantation; orthodontic extrusion; success estimate; survival estimate
- Citation
- INTERNATIONAL ENDODONTIC JOURNAL, v.47, no.12, pp.1168 - 1176
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL ENDODONTIC JOURNAL
- Volume
- 47
- Number
- 12
- Start Page
- 1168
- End Page
- 1176
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/96725
- DOI
- 10.1111/iej.12268
- ISSN
- 0143-2885
- Abstract
- AimTo evaluate retrospectively the clinical outcomes of intentional replantation (IR) of teeth in terms of tooth survival and periradicular healing and to investigate their prognostic factors. MethodologyTwo hundred and eighty-seven teeth treated by IR were analysed retrospectively. Clinical outcomes between the cases with preoperative orthodontic extrusion for 2-3week and those without extrusion were analysed. The outcomes of IR were determined by clinical and radiographic evaluation. Tooth survival and periradicular healing estimates were compared using Kaplan-Meier analysis. The contribution of a patient's age and gender, tooth type and location, and preoperative orthodontic extrusion was investigated using the multivariate Cox proportional hazard model. ResultsThe mean follow-up period was 25.4 9.3months. The overall success rate of IR was 89.5% based on periradicular healing. The overall survival rate was 95.1%. The survival rates were 91.2% for the teeth extracted without extrusion and 98.1% for those extracted with extrusion. Amongst the variables tested, only the extraction technique with preoperative orthodontic extrusion significantly affected the survival rate (P=0.016). Other prognostic variables, such as age and gender, tooth type and location, did not affect the survival of intentionally replanted teeth. ConclusionsIntentional replantation was a viable treatment option for teeth with previously failed nonsurgical root canal treatment, regardless of a patient's age and gender, and tooth type and location. Preoperative orthodontic extrusion for 2-3weeks reduced root resorption and tooth fracture and can be recommended to enhance the outcome of IR.
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