Effect of a new light-curable calcium silicate-based material in pulpotomy of deciduous teeth
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摘要:目的
比较新型光固化硅酸钙材料TheraCal LC与生物陶瓷材料iRoot BP Plus在乳牙牙髓切断术中的临床效果。
方法将118颗去腐露髓的患儿乳牙随机分为试验组(n=59)和对照组(n=59), 并分别采用TheraCal LC和iRoot BP Plus行乳牙牙髓切断术。术后6、12、18个月复查, 比较2组的临床成功率和影像学成功率。
结果术后6个月，试验组和对照组治疗成功率均为100.0%; 术后12个月，试验组和对照组治疗成功率分别为98.3%和96.6%; 术后18个月，试验组和对照组治疗成功率分别为85.7%和86.7%; 2组术后6、12、18个月的治疗成功率比较，差异均无统计学意义(P>0.05)。充填治疗与预成冠修复的患牙术后成功率比较，差异无统计学意义(P>0.05)。
结论TheraCal LC与iRoot BP Plus用于乳牙牙髓切断术的成功率均较高，但TheraCal LC在临床中更具操作便捷、价格便宜、操作时间短等优势。
Abstract:ObjectiveTo compare the clinical efficacy between a new light-curable calcium silicate-based material TheraCal LC and bioceramic material iRoot BP Plus in treating pulpotomy of deciduous teeth.
MethodsA total of 118 pulp-exposed deciduous teeth after removal of necrotic tissue were randomly divided into trail group (n=59) and control group (n=59), and were respectively treated with TheraCal LC and iRoot BP Plus for pulpotomy of deciduous teeth. At 6, 12 and 18 months after operation, the clinical success rate and imaging success rate of the two groups were compared.
ResultsSix months after operation, the therapeutic success rate was 100.0% in the trail group and the control group; at 12 months after operation, the therapeutic success rates of the trail group and the control group were 98.3% and 96.6% respectively; at 18 months after operation, the therapeutic success rates of the trail group and the control group were 85.7% and 86.7% respectively; there were no significant differences in the therapeutic success rates between the two groups at 6, 12 and 18 months after operation (P>0.05). There was no significant difference in the success rate between the methods of filling treatment and the preformed crown repair (P>0.05).
ConclusionBoth TheraCal LC and iRoot BP Plus have high success rates in the pulpotomy of deciduous teeth, but TheraCal LC has more advantages such as convenient operation, low price and short operation time in clinical practice.
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图 1 1例5岁患儿TheraCal LC牙髓切断治疗影像图
A: 右上第一乳磨牙术前; B: 左上第一乳磨牙术前; C: 右上第一乳磨牙术后12个月治疗成功; D: 左上第一乳磨牙术后12个月出现根尖阴影、牙龈肿痛，治疗失败。
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图 2 1例4岁患儿iRoot BP Plus牙髓切断治疗影像图
A: 右下第一、第二乳磨牙术前; B: 右下第一、第二乳磨牙术后18个月，右下第二乳磨牙的牙根异常外吸收伴根尖阴影，治疗失败，右下第一乳磨牙成功。
表 1 2组患儿的乳磨牙牙位分布比较[n(%)]
组别 患牙数/颗 上颌 下颌 第一乳磨牙 第二乳磨牙 第一乳磨牙 第二乳磨牙 试验组 59 13(22.0) 20(34.0) 13(22.0) 13(22.0) 对照组 59 13(22.0) 10(16.9) 20(34.0) 16(27.1) 合计 118 26(22.0) 30(25.4) 33(28.0) 29(24.6) 
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表 2 2组患牙术后不同时间随访结果比较[n(%)]
组别 6个月 12个月 18个月 完成随访牙数/颗 成功 失败 完成随访牙数/颗 成功 失败 完成随访牙数/颗 成功 失败 试验组 59 59(100.0) 0 59 58(98.3) 1(1.7) 35 30(85.7) 5(14.3) 对照组 59 59(100.0) 0 59 57(96.6) 2(3.4) 30 26(86.7) 4(13.3)
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表 3 2组患牙术后经不同修复方式的成功率比较[n(%)]
组别 牙数/颗 充填 预成冠 成功 失败 成功 失败 试验组 59 27(45.8) 0 27(45.8) 5(8.4) 对照组 59 24(40.7) 3(5.1) 31(52.5) 1(1.7) 合计 118 51(43.2) 3(2.5) 58(49.2) 6(5.1)
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