Clinical and Periapical Healing Assessment of Autograft Teeth after Prophylactic Apical Closure

doi:10.13701/j.cnki.kqyxyj.2024.06.004

Abstract

Abstract: Objective: To evaluate the effect of apical surgery on autotransplantation teeth from three perspectives: clinic, image, and histology. Methods: Twenty-four teeth of three beagle dogs were randomly divided into a control group, an RCT group, and a Ref group (transplantation after root-end filling treatment). Clinical and image examinations were performed at 1, 4, and 12 weeks after surgery. Samples were subjected to micro CT scanning (calculated BV/TV, Tb. Sp, Tb.N, Tb.Th) and HE staining. Analytical statistics were performed to quantify loosening, PD values, and micro CT results. Results: Several teeth were lost in the three groups, and there was an improvement in the looseness at 12 weeks postoperatively. Mean loosening was significantly influenced by time and group (P<0.05). The decrease in PD values was significantly associated with time (P<0.05) and was significantly lower in the RCT and ref groups than that in the control group. In X-ray films, alveolar bone height was gradually decreased with bone remodeling, and some roots in the control group showed external resorption. The Tb. Sp in the RCT group was significantly lower than that in the control group (P<0.05). The Tb.N in the control group was significantly lower than those in the other two groups (P<0.05 and P<0.01). The apices of the Ref group were more closely related to the physiological structure and exhibited active bone repair confirmed by histology. Conclusion: Prophylactic apical sealing is effective in autograft teeth, which can simplify postoperative treatment and promote periodontal bone reconstruction of doner teeth. Accordingly, it is an effective modification of RCT for autografted teeth.

Key words: autotransplantated teeth, root-end filling, iRoot Bp plus, periodontal healing, apical healing

CHEN Yue, CHI Junzhou, LIU Juanxiu, REN Xiaohua, TIAN Kun. Clinical and Periapical Healing Assessment of Autograft Teeth after Prophylactic Apical Closure[J]. Journal of Oral Science Research, 2024, 40(6): 489-495.

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