Clinical and Periapical Healing Assessment of Autograft Teeth after Prophylactic Apical Closure
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 exami-nations were performed at 1,4,and 12 weeks after surgery.Samples were subjected to micro CT scanning(calcu-lated BV/TV,Tb.Sp,Tb.N,Tb.Th)and HE staining.Analytical statistics were performed to quantify loose-ning,PD values,and micro CT results.Results:Several teeth were lost in the three groups,and there was an im-provement 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 significant-ly lower in the RCT and ref groups than that in the control group.In X-ray films,alveolar bone height was gradual-ly 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 exhib-ited active bone repair confirmed by histology.Conclusion:Prophylactic apical sealing is effective in autograft teeth,which can simplify postoperative treatment and promote per-iodontal bone reconstruction of doner teeth.Accordingly,it is an effective modification of RCT for autografted teeth.
autotransplantated teethroot-end fillingiRoot Bp plusperiodontal healingapical healing
万方数据
维普
