RÉSUMÉ
Objective:To investigate the clinical efficacy of amoxicillin combined with metronidazole in the treatment of peri-implantitis and its effect on serum matrix metalloproteinase-8 (MMP-8), tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) levels.Methods:Sixty-four patients with peri-implantitis who received treatment from January 2017 to December 2019 in Xiasha Hospital, SiR Run Run Shaw Hospital, Zhejiang University School of Medicine were included in this study. They were randomly assigned to receive treatment with metronidazole (control group, n = 32) or amoxicillin combined with metronidazole (observation group, n = 32). Clinical efficacy, periodontal pocket depth (PD), clinical attachment level (CAL), sulcus bleeding index (SBI), plaque index (PLI), matrix metalloproteinase-8 (MMP-8), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) levels and the incidence of adverse reactions were compared between the control and observation groups. PD, CAL, SBI and PLI were correlated with MMP-8, TNF-α and IL-1β levels. Results:The clinical efficacy in the observation group was significantly higher than that in the control group [93.75% (30/32) vs. 75.00% (24/32), χ2 = 4.267, P < 0.05]. After treatment, PD [(3.02 ± 0.24) mm], CAL [(1.70 ± 0.14) mm], SBI [(11.54 ± 3.26)%], PLI (0.87 ± 0.11) in the observation group were significantly lower than those in the control group [(4.47 ± 1.37) mm, (3.77 ± 1.06) mm, (18.84 ± 5.11)%, (1.12 ± 0.15), t = 5.897, 10.952, 6.813, 7.603, all P < 0.01]. After treatment, serum MMP-8 [(0.78 ± 0.23) μg/L], TNF-α [(71.24 ± 10.33) μg/L], IL-1β [(1.20 ± 0.14) μg/L] levels in the observation group were significantly lower compared with the control group [(1.12 ± 0.35) μg/L, (113.28 ± 15.73) μg/L, (2.55 ± 1.02) μg/L, t = 4.592, 12.637, 7.417, all P < 0.01]. Spearman correlation coefficient analysis showed that PD, CAL, SBI and PLI were positively correlated with serum MMP-8, TNF-α and IL-1β levels (all P < 0.01). Conclusion:Amoxicillin combined with metronidazole is highly effective in the treatment of peri-implantitis because it can promote plaque regression, reduce inflammatory reaction, and has a certain clinical promotion value.
RÉSUMÉ
Objective To investigate the CT features of hepatic echinococcosis in children.Methods Clinical and CT data of 27 cases with hepatic echinococcosis confirmed by pathology and/or serology were retrospectively analyzed.Results Totally there were 26 cases of cystic echinococcosis and 1 case of alveolar echinococcosis.Ten cases were with simple hepatic echinococcosis and 17 cases with other organic echinococcosis,18 cases of intrahepatic single hydatid and 9 cases of intrahepatic multiple hydatid.A total of 1 alveolar lesion and 47 cystic lesions were found,including unilocular cyst accounted for 51.06％ (24/47),cysts with collapse of the internal capsule accounted for 42.55％ (20/47),cysts with wall calcification accounted for 4.26％ (2/47) and multiple cysts accounted for 2.13％ (1/47).There was no solid lesions.The cyst diameters which were larger than 5 cm accounted for 74.47％ (35/47).Conclusion The CT can qualitatively diagnose hepatic echinococcosis in children.It is a reliable method of examination.