Abstract
Background/AimAutotransplantation of teeth is a method to restore the missing teeth and computer-aided techniques have been applied in this field. The aim of this study was to describe a novel approach for computer-aided autotransplantation of teeth and to preliminarily assess its feasibility, accuracy, and stability.MethodsEight wisdom teeth with complete root formation of eight adult patients were autotransplanted. Individual replicas of donor teeth with local splints, surgical templates, and arch bars were virtually designed and fabricated using three-dimensional printing, these were then applied in the autotransplantation surgeries. Clinical and radiological outcomes were observed, the extra-alveolar time, success rate, and 1-year survival rate were analyzed, and accuracy and stability of this approach were evaluated.ResultsThe extra-alveolar time of donor teeth were less than 3 min. The average follow-up duration was 2.00 ± 1.06 years. All autotransplanted teeth showed normal masticatory function. Ankylosis was found in one patient, and the overall success rate was 87.5%, whereas the 1-year survival rate was 100%. Linear differences between the designed and the immediate autotransplanted positions at crowns and apexes of the donor teeth were 1.43 ± 0.57 and 1.77 ± 0.67 mm, respectively. Linear differences between immediate and the stable positions at crowns and apexes of the donor teeth were 0.66 ± 0.36 and 0.67 ± 0.48 mm, respectively.ConclusionThe present study illustrated the feasibility, clinical satisfied accuracy, and stability of a novel approach for computer-aided autotransplantation of teeth. This new approach facilitated the surgical procedure and might be a viable and predictable method for autotransplantation of teeth.
Highlights
As a valuable method for restoring missing teeth, autotransplantation of teeth has been used in clinical practice for over 60 years (Cross et al, 2013; Jang, Lee & Kim, 2013)
The replica with the local surgical splint was used as a guide before extraction of the donor tooth
It was a time-consuming process, and multiple fittings were attempted until the replica could fit into the new pocket and the splint could fit onto the occlusal surface of the opposite tooth (Figs. 3B and 3C)
Summary
As a valuable method for restoring missing teeth, autotransplantation of teeth has been used in clinical practice for over 60 years (Cross et al, 2013; Jang, Lee & Kim, 2013).How to cite this article He W, Tian K, Xie X, Wang E, Cui N. 2018. As a valuable method for restoring missing teeth, autotransplantation of teeth has been used in clinical practice for over 60 years (Cross et al, 2013; Jang, Lee & Kim, 2013). The advantages and predicable outcomes of teeth autotransplantation have been well documented (Jang, Lee & Kim, 2013; Yoshino et al, 2012; Czochrowska et al, 2002; Chung et al, 2014). Studies on teeth autotransplantation have reported a success rate of 81–100% (Chung et al, 2014; Czochrowska et al, 2002; Yoshino et al, 2012) and a 5-year survival rate of approximately 90% (Yoshino et al, 2012)
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