2种不同材料修复楔状缺损的临床疗效评价

Clinical effect evaluation of restorations for wedge-shaped defect with two different materials

目的探讨纳米光固化复合树脂和FujiⅡ树脂加强型复合玻璃离子充填楔状缺损的存留率。方法选择楔状缺损患者200例479颗牙,随机分成两组进行充填治疗,其中FujiⅡ组105例患者246颗牙,纳米树脂组95例患者233颗牙,充填后2年复查。结果共回访183例患者,共446颗牙。FujiⅡ组充填总失败率、完全脱落率及出现牙髓症状率均显著小于纳米树脂组(P<0.05);FujiⅡ组边缘密合度破坏率显著大于纳米树脂组(P<0.05)。结论在修复楔状缺损中,纳米光固化复合树脂更适合美观要求较高,刷牙习惯较差的患者,FujiⅡ树脂加强型复合玻璃离子在保护牙髓上更有优势。

Objective To evaluate the survival rates of the restorations for wedge-shaped defect with nanometer resin and Fuji II resin-reinforced glass ionomer. Methods 200 patients with 479 wedge-shaped defect teeth were selected and randomly divided into two groups. 105 patients with 246 defect teeth were treated with Fuji II resin reinforced glass ionomer（ glass group） , arid the other 95 patients with 233 defect teeth were treated with nanometer resin （resin group）. All the patients were recalled to evaluate the restoration ef- ficacy two years later. Results 183 patients （with 446 teeth） were evaluated two years after restoration. The total failure rate, completely broken rate and secondary pulpitis rate in the Glass group were significantly lower than those in the Resin group （for all the three kinds of rates,P 〈 0.05） ; the edge broken rate of the glass group was significantly higher than that of the resin group （ P 〈 0. 05）. Conclusions Nanometer resin and resin reinforced glass ionomer have their own advantages for wedge-shaped defect repair. The former is better for patients with high aesthetic requirements or poor toothbrushing habits,while the latter has benefits for protecting dental pulp.