2023 Volume 32 Issue 2 Pages 143-150
This study aims to compare the clinical effects of periodontal regenerative (RG) surgery and open flap debridement (OFD) on the treatment of chronic periodontitis in teeth with non-classical periodontal regeneration indications. A total of 32 patients with a shallow, 1-wall infra-bony defect were selected for the present study. The patients were divided into two groups, the RG group and the OFD group, according to the surgical method used in their treatment. The distance between the bottom of the bone defect (BD) and the cement-enamel junction (CEJ) in each patient was measured before surgery (BD-CEJ). The BD-CEJ was classified and divided into two groups: the mild group (≥3 mm and ˂6 mm) and the severe group (≥6 mm and ˂9 mm). Each group was further divided into two subgroups: (1) the mild RG group (RG-M) and the severe RG group (RG-S) and (2) the mild OFD group (OFD-M) and the severe OFD group (OFD-S). The BD-CEJ distance, periodontal probing depth (PD), and periodontal clinical attachment loss (CAL) were measured before surgery and again at one year after surgery. At one year after surgery, the BD-CEJ distance and CAL were both reduced in the RG group (p < 0.01) and significantly improved in the RG-S group (p < 0.01). However, there was no significant improvement in the OFD group (p > 0.05). In both the RG group and the OFD-M group, the PD was significantly improved (p < 0.01); however, there was no significant PD decrease in the OFD-S group (p > 0.05). In non-classical periodontal regeneration indications, both RG and OFD surgery can effectively control periodontal inflammation in teeth with severe BD. Furthermore, RG surgery can promote bone regeneration and periodontal attachment formation.
