Clinical Effect of Glass Fiber Post Resin Core and E-max Porcelain Crown on Anterior Tooth Defects
Objective To observe the clinical effect of glass fiber post resin core combined with e-max all-porcelain crown in repairing anterior tooth defects,and to compare the effect with that of cast metal post core combined with e-max all-porcelain crown.Methods A total of 60 patients with anterior tooth defects admitted to the author's hospital from January 2017 to January 2022 were selected and divided into group A and group B by computer random number generator,with 30 cases in each group.Both groups were repaired with e-max porcelain crown,group A used cast metal post core,group B used glass fiber post resin core.The success rate,repair effect and incidence of adverse events were compared between the two groups one year after repair.The levels of matrix metalloproteinase-2(MMP-2)and alkaline phosphatase(ALP)in gingival crevicular fluid were compared between the two groups before and after repair.Results There was no significant difference in the success rate of repair between the two groups(P＞0.05).Compared with group A,the color matching rate and marginal fit rate were increased in group B(P＜0.05).There were no significant differences in the levels of MMP-2 and ALP in gingival crevicular fluid between the two groups before repair(P＞0.05).After repair,compared with group A,the levels of MMP-2 and ALP in gingival crevicular fluid in group B were decreased(P＜0.05).Compared with before repair,the levels of MMP-2 and ALP in gingival crevicular fluid in group A were increased(P＜0.05),while the levels of MMP-2 and ALP in group B were not significantly different(P＞0.05).Compared with group A,the incidence of post-core fracture,gingival coloration,crown or root fracture in group B were decreased(P＜0.05).Conclusion Glass fiber post resin core and e-max porcelain crown can effectively improve the repair effect,and reduce the stimulation and adverse events of periodontal tissue.
anterior tooth defectsglass fiber post resin coreE-max all-porcelain crownmatrixmetalloproteinase-2alkaline phosphatase
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