Effect of All Ceramic Crown Restoration on Anterior Teeth and Its Impact on the Oral Microbiota of Patients
Objective To explore the effect of all ceramic crown restoration on anterior teeth and its impact on the oral microbiota of patients.Methods A total of 122 patients with anterior tooth defects who underwent full crown restoration in Xuchang Central Hospital from July 2021 to June 2022 were randomly divided into two groups:a control group of 61 cases and a study group of 61 cases.The control group was treated with cobalt chromium alloy porcelain crowns,while the study group was treated with zirconia all ceramic crowns.The restoration effects of the two groups were compared,including periodontal probing depth,modified plaque index(mPLI),modified sulcular bleeding index(mSBI),and oral bacterial distribution before and after restoration,and the detection of bacteria in the oral cavity.Results The detection rate of pathogenic bacteria,food impaction rate,secondary caries rate,and restoration detachment rate in the study group were 19.67％,0,0 and 3.28％,respectively,which were lower than the control group's 50.82％,11.48％,9.84％and 14.75％(P＜0.05).After restoration,the depth of periodontal exploration,mSBI in both groups increased compared to before restoration,and mPLI decreased compared to before restoration(P＜0.05),but the depth of periodontal exploration,mSBI and mPLI in the study group were significantly lower compared to the control group(P＜0.05).After repair,the levels of Actinomyces viscosus,Fusobacterium nucleatum and Spirochetes in the two groups were higher than those before repair(P＜0.05),and the levels of Porphyromonas,Campylobacter and Coccus in the two groups were lower than those before repair(P＜0.05).The levels of Actinomyces viscosus,Porphyromonas,Fusobacterium nucleatum,Spirochetes,Campylobacter and Coccus in the study group were lower than those in the control group(P＜0.05).The detection rates of Fusezia,Actinobacillus,Porphyromonas and Fusobacterium nucleatum in the study group were 21.31％,40.98％,11.48％and 34.43％,respectively,which were lower than 39.34％,67.21％,26.23％and 57.38％in the control group(P＜0.05).Conclusion After the restoration of all ceramic crowns,the anterior teeth can reduce damage to periodontal tissue,reduce the number of oral bacteria,and reduce the impact on oral microbiota.The restoration effect is accurate.
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