Effect Analysis of Root Canal Filling with Metapex Paste on Sinus Periapical Periodontitis of Deciduous Teeth

Wang Fengmin; Guo Nannan

doi:10.3969/j.issn.1004-5775.2025.09.004

Abstract：Objective:To investigate retrospectively the effect of Metapex paste on the root canal filling of primary teeth with sinus periapical inflammation.Methods:100 children with sinus periapical periodontitis of deciduous teeth admitted to the hospital from January 2020 to December 2021 were selected,and they were divided into two groups with 50 cases in each group according to different treatment regimens.The control group was given zinc hydroxide iodoform paste,and the study group was given Metapex paste.The therapeutic effect,frequency of sealing,sinus closure time,pain score(VAS),periapical index(CPI),occlusal function and success rate after 1 year were compared between the two groups.Results:The total effective rate of the study group was higher than that of the control group,and the difference was statistically significant(χ2=4.396,P<0.05).The sinus closure time of study group was lower than that of control group(t=10.888,P<0.001).There was no significant difference in sealing times between the two groups(t=1.526,P>0.05).After 1 month of treatment,the CPI and VAS scores in the study group were lower than those in the control group,and the difference was statistically significant(t=10.491,t=7.601;P<0.05).After 1 month and 1 year of treatment,the study group had lower scores for eating difficulties,language barriers,and periodontal soft tissue discomfort than the control group,and the differences were statistically significant(t=11.484,4.730,5.418,5.883,4.138,8.237;P<0.05).The success rate of the study group after 1 year treatment was 94.00％,which was higher than 80.00％of the control group,and the differences was statistically significant(χ2=4.332,P<0.05).Conclusion:Metapex paste is more effective in the treatment of periapical periodontitis of deciduous teeth,which can reduce pain,improve occlusal function and increase the success rate after 1 year of treatment.