Observation on the effect of comprehensive treatment of combined periodontic-endodontic lesions
Objective To observe the effect of comprehensive treatment of root canal therapy+subgingival curettage+guided tissue regeneration for combined periodontic-endodontic lesions.Methods A total of 110 patients with combined periodontic-endodontic lesions were randomly divided into an observation group and a control group,with 55 cases in each group.The observation group received comprehensive treatment(root canal therapy+subgingival curettage+guided tissue regeneration),and the control group received traditional treatment(root canal therapy+subgingival curettage).The therapeutic effect,periodontal index[probing depth(PD),bleeding index(BI),plaque index(PLI),gingival index(GI)],masticatory function and prognosis of the two groups were compared.Results The total effective rate of the observation group and the control group was both 96.36%,and there was no significant difference(P＞0.05).After treatment,PD,BI,PLI and GI in both groups were lower than those before treatment;the observation group had PD of(3.37±0.47)mm,BI of(1.68±0.30),PLI of(0.69±0.09)and GI of(1.01±0.38),which were lower than(4.49±0.53)mm,(2.31±0.34),(1.12±0.12)and(1.64±0.40)in the control group(P＜0.05).After 6 and 12 months of treatment,the masticatory function scores of the observation group were(6.05±0.63)and(7.28±0.79)points,which were significantly higher than(4.11±0.67)and(5.52±0.75)points of the control group(P＜0.05).After 1 year of follow-up,the tooth retention rate of 69.09% in the observation group was significantly higher than 49.09% in the control group;the recurrence rate of periodontitis and pulpitis were 3.64% and 5.45%,which were significantly lower than 20.00% and 21.82% in the control group(P＜0.05).Conclusion Root canal therapy+subgingival curettage+guided tissue regeneration has obvious advantages in the treatment of combined periodontic-endodontic lesions,which can not only improve the patient's periodontal index as well as masticatory function,but also improve the tooth retention rate,reduce the recurrence of periodontitis and pulpitis,which has a remarkable efficacy.
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