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LI Xiaofeng ^¢Ù

(Xicheng District Maternal & Child Health Hospital of Beijing, Beijing 100054, China)

Abstract Objective: To investigate the clinical effect of three kinds of crown restoration methods on children¡äs deciduous teeth after root canal therapy. Methods: A total of 600 children who received root canal therapy in their primary teeth in our hospital from January 2019 to January 2021 were selected as the research objects. They were randomized into Group A, Group B, and Group C, with 200 cases in each group. The ceramic inlays, metal preformed crown and resin fillings were respectively adopted to repair the deciduous teeth in children in Group A, Group B and Group C. Results: The success rate of dental treatment in Groups A and B was significantly higher than that in Group C (P<0.05), the difference was statiscally significant; the effect of dental restoration of Group A and B, including teeth edge tightness, adjacency of teeth, and the like was superior to that of Group C (P<0.05); the operation time of treatment in Group B was significantly shorter than that in Group A and C (P<0.05); the incidence of adverse reactions was 8.00 % in Group A and 4.00 % in Group B, which was lower than 14.50 % in Group C (P< 0.05). Conclusion: The effect of ceramic inlays and metal preformed crown in repairing the defects of children¡äs deciduous teeth after root canal therapy is better than that of resin fillings.

Keywords: children; root canal therapy; crown restoration; teeth defect

DOI:10.19296/ j.cnki.1008-2409.2023-01-014

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