| Objective:There is no unified conclusion on whether filling material is required for bone defects arising from the treatment of small odontogenic jaw cysts.The cavity produced after the treatment of jaw cyst can choose to fill the cavity without any bone replacement material,own blood clots fill and heal to produce spontaneous bone regeneration;or choose autologous bone or bone replacement material to fill the cavity to enable bone regeneration.To compare the effects of spontaneous bone regeneration and Bio-Oss graft bone regeneration after jaw cysts（odontogenic）surgeryMethods:Fifty patients with jaw cysts（odontogenic）（maximum diameter ≤20mm）who were admitted to the extraoral ward of Anqing Hospital Affiliated to Anhui Medical University from October 2019 to March 2021 were included.They were randomly divided into two groups:25 patients in the observation group were filled with Bio-Oss after the operation,namely the Bio-Oss implantation group;and 25 patients in the control group were filled and healed with their own blood clots after the cyst was removed,namely the blood clotfilling and healing group.CBCT was performed before and 1,3,and 6 months after cyst removal in all cases to obtain the volume and bone density of the bone defect area before and after the operation.The bone regeneration rate and bone healing of the two groups at 1,3,and 6 months after cyst removalwere compared.Results:The difference between the two groups in the volume of the bone defect area before the operation was not significant（P>0.05）.The volume of the bone defect area of the Bio-Oss group after the operation was less than the blood clot group（P<0.05）.The postoperative CT value of the Bio-Oss group was greater than that in the blood clot filling and healing group（P<0.05）.The bone regeneration rate and healing index at 1,3,and 6 months after surgery in the Bio-Oss group were significantly higher than those in the blood clot filling and healing group（P<0.05）.Conclusion:For odontogenic jaw cysts with a diameter ≤20mm,bone regeneration after surgery with Bio-Oss bone meal transplantation is significantly superior to the spontaneous bone regeneration with autologous blood clot filling. |
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