Lava Ultimate优韧瓷髓腔固位冠在大面积牙体缺损短冠磨牙修复中的应用观察  

Application of Lava Ultimate toughness porcelain endocrowns in repairing defect of short crown molars

作　　者：鲁铭祺 范欣[2] 郝建忠[2] 王长磊[2] LU Mingqi;FAN Xin;HAO Jianzhong;WANG Changlei(School of Stomatology,Weifang Medical University,Weifang 261041,China;不详)

机构地区：[1]潍坊医学院口腔医学院,山东潍坊261041 [2]潍坊医学院附属医院口腔科

出　　处：《山东医药》2022年第33期27-31,共5页Shandong Medical Journal

摘　　要：目的观察Lava Ultimate优韧瓷髓腔固位冠在大面积牙体缺损短冠磨牙修复中应用效果。方法大面积牙体缺损短冠磨牙85颗,分为Lava Ultimate优韧瓷髓腔固位冠组(优韧瓷组)40颗、氧化锆髓腔固位冠组(氧化锆组)45颗,分别采用Lava Ultimate优韧瓷、氧化锆髓腔固位冠修复。修复后12个月对两组髓腔固位冠修复体进行临床效果评价,包括修复体完整性、修复体松动及脱落、边缘适合性、边缘着色、继发龋和牙龈健康状况,计算临床成功率。修复后12个月进行满意度调查,包括修复体颜色、外形、咀嚼功能和舒适度4个方面。离体短冠恒磨牙20颗,制作Lava Ultimate优韧瓷以及氧化锆髓腔固位冠修复体各10个,分别记为LU组、ZrO2组,制作硅橡胶间隙印模后,观察修复体边缘适应性(M1点值)和内部适应性(M2、M3及M4点值)。结果优韧瓷组和氧化锆组的髓腔固位冠修复体边缘密合,无边缘着色及继发龋的发生。优韧瓷组在修复后12个月出现1例修复体咬合面破损、1例牙龈轻微炎症,临床成功率为95.0%;氧化锆组在修复后12个月时出现1例修复体脱落、2例牙龈轻微炎症,临床成功率为93.3%,两组临床成功率相比,P>0.05。优韧瓷组患者在修复体舒适度的满意率高于氧化锆组(P<0.05)。LU组M1、M2、M3、M4点间隙值均小于ZrO2组(P均<0.05)。结论与氧化锆相比,Lava Ultimate优韧瓷髓腔固位冠修复大面积牙体缺损短冠磨牙疗效相当,但患者舒适度更高,且Lava Ultimate优韧瓷髓腔固位冠修复体的边缘适应性和内部适应性均更优。Objective To explore the clinical effect of Lava Ultimate toughness porcelain endocrown in restoring short crown molars with large area tooth defect.Methods Eighty-five short crown molars with large tooth defects were restored with endocrowns,and they were randomly divided into two groups:Lava Ultimate group(n=40)and zirconia group(n=45).The clinical effects of the two groups of endocrown restorations were evaluated at 12 months after repair,including integrity of the restration,restoration debond,marginal adaptation,marginal staining,secondary caries,and gingivitis;and the clinical success rate was calculated.The satisfaction survey was conducted at 12 months after restoration,including color,appearance,masticatory function and comfort.Twenty short-crown permanent molars in vitro were used to make 10 Lava Ultimate toughness porcelain endocrown and Zirconia endocrown restorations,which were recorded as LU group and ZrO2 group.After making silicone rubber gap impressions,the marginal adaptability(M1 point value)and internal adaptability(M2,M3 and M4 point value)of the restorations were observed.Results The edge of the endocrown restorations in the Lava Ultimate group and the zirconia group was closed,and no edge coloring and secondary caries occurred.In the Lava Ultimate group,1 case of occlusal surface damage and 1 case of gingival slight inflammation occurred at 12 months after repair,and the clinical success rate was 95.0%.In the zirconia group,1 case of prosthesis shedding and 2 cases of mild gingivitis occurred at 12 months after repair,and the clinical success rate was 93.3%.No significant difference was found in the clinical success rate between the two groups(P>0.05).The satisfaction rate of patients in the Lava Ultimate group was higher than that in the zirconia group(P<0.05).The gap values of M1,M2,M3 and M4 in the LU group were lower than those in the ZrO2 group(all P<0.05).Conclusion Compared with zirconia endocrowns,Lava Ultimate toughness porcelain endocrowns are equally effective in restoring short

关 键 词：Lava Ultimate优韧瓷 氧化锆 髓腔固位冠 短冠磨牙 牙体缺损 

分 类 号：R781[医药卫生—口腔医学]