Application of Polymer-ceramic Onlay and All-ceramic Crown in the Repair of Mandibular First Molar Defect and Influence on Function and Aesthetic Effect
Objective To investigate the application of polymer-ceramic onlay and all-ceramic crown in the repair of mandibular first molar defect and the influence on function and aesthetic effect.Methods A total of 120 patients with first molar defect admitted to the author's hospital from January 2020 to December 2021 were selected as research subjects,and were divided into control group(60 cases,all-ceramic crown repair)and observation group(60 cases,polymer-ceramic onlay repair)according to the random number table method.Repair effect,periodontal health indexes,masticatory function,aesthetic effect and occurrence of adverse events were observed in both groups.Results The total effective rate of repair in observation group was higher at 12 months after treatment(P＜0.05).The scores of periodontal health indexes were lower in observation group(P＜0.05).The masticatory function in observation group was significantly higher compared to control group(P＜0.05).The scores of smooth surface,marginal adaption,good fixation and color matching in observation group were higher compared with those in control group(P＜0.05).The incidence rates of adverse events such as secondary caries,crown fracture,gingival swelling and occlusal pain were lower than those in control group(P＜0.05).The repair success rate and survival rate in observation group were higher than those in control group(P＜0.05).Conclusion Compared with all-ceramic crown treatment,the application of polymer-ceramic onlay in the repair of mandibular first molar defect can better enhance the long-term repair effect,improve the periodontal health status,and enhance the masticatory function and aesthetic effect.
polymer-ceramic onlayall-ceramic crownmandibular first molartooth structure defectrestorationmasticatory functionaesthetic effect
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