Evaluation of the efficacy of flap debridement combined with erythritol subgingival sandblasting in the treatment of peri-implantitis

doi:10.19438/j.cjoms.2026.03.008

Abstract

Abstract: PURPOSE: To evaluate the clinical efficacy of flap debridement combined with erythritol subgingival sandblasting in the treatment of peri-implantitis(PI). METHODS: A total of 90 patients with PI in Hospital of Stomatology, Xi'an Jiaotong University from January 2023 to March 2025 were selected and divided into the debridement group(n=45, flap debridement alone) and the debridement + sandblasting group (n=45, flap debridement combined with erythritol subgingival sandblasting) using the random number table method. Periodontal status indicators [plaque index, sulcus bleeding index (SBI), probing depth (PD)] and gingival crevicular fluid (GCF) related indicators [GCF volume, interleukin-6 (IL-6), osteopontin] were compared between the two groups before treatment and 1 month after treatment. Clinical efficacy was evaluated 3 months after treatment, and oral health-related quality of life(assessed by OHIP-49 scores) was measured at different time points. RESULTS: One month after treatment, the plaque index, SBI, PD, GCF volume, IL-6 and osteopontin levels in both groups were significantly improved compared with those before treatment (P<0.05), and the improvement amplitude in the debridement + sandblasting group was greater (P<0.05). Three months after treatment, the total effective rate of the debridement + sandblasting group(95.56%) was significantly higher than that of the debridement group (80.00%, P<0.05). At 1 month and 3 months after treatment, the OHIP-49 scores of both groups were continuously decreased compared with those before treatment, and the scores in the debridement + sandblasting group were significantly lower than those in the debridement group (P<0.05). CONCLUSIONS: Flap debridement combined with erythritol subgingival sandblasting for peri-implantitis can more effectively remove plaque, alleviate periodontal inflammation, reduce periodontal pocket depth, relieve inflammatory response, and improve patients' quality of life.

Key words: Peri-implantitis, Flap debridement, Erythritol, Subgingival sandblasting, Periodontal inflammation

CLC Number:

R782.1

Li Yinglou, Zhang Wentao, Guo Jing. Evaluation of the efficacy of flap debridement combined with erythritol subgingival sandblasting in the treatment of peri-implantitis[J]. China Journal of Oral and Maxillofacial Surgery, 2026, 24(3): 255-260.

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