Journal of Prevention and Treatment for Stomatological Diseases ›› 2019, Vol. 27 ›› Issue (1): 30-34.DOI: 10.12016/j.issn.2096-1456.2019.01.006

• Cinical Study • Previous Articles     Next Articles

Clinical effect of resin hybrid ceramic onlay in repairing posterior tooth defects

HONG Yurui,ZHOU Hailan,GAO Yongbo()   

  1. Department of Stomatology, Longgang Central Hospital, Shenzhen 518116, China
  • Received:2018-08-01 Revised:2018-09-19 Online:2019-01-20 Published:2019-01-22
  • Contact: Yongbo GAO

树脂复合陶瓷高嵌体修复后牙牙体缺损临床效果

洪煜锐,周海兰,高永波()   

  1. 龙岗中心医院口腔科,广东 深圳(518116)
  • 通讯作者: 高永波
  • 作者简介:洪煜锐,副主任医师,硕士,Email:824204028@qq.com
  • 基金资助:
    国家自然科学基金项目(31560265);深圳市知识创新计划基础研究项目(CYJ20160427101451276);深圳市知识创新计划基础研究项目(JCYJ2016042710011615);深圳市龙岗区医疗卫生科技计划项目(201620412);深圳市龙岗区医疗卫生科技计划项目(201620413)

Abstract:

Objective To investigate the clinical effect of restoration of posterior teeth with machinable CAD/CAM resin hybrid ceramic (VITA Enamic) onlays after root canal treatment. Methods 136 posterior teeth restored after root canal treatment in our hospital were selected as the research subjects. The posterior teeth were restored chairside with CAD / CAM ceramic onlays to recover occlusion relation and protect residual dental tissues. With 68 teeth in each group, one group was restored with a machinable CAD / CAM resin hybrid ceramic (VITA Enamic) while the control group received zirconia-reinforced lithium silicate ceramic (VITA Suprinity). Before bonding, all the onlays were examined for good adjacency, fitness and occlusion, and then the adhesive surface was etched with hydrofluoric acids. After isolating the rubber dams in the mouths, the onlays were bonded with dual-cure resin cements. The patients were followed up for 24 months to compare the degree of prosthesis integrity, marginal fitness, gingival health, dental integrity, color matching and secondary caries. Results After restoration, all the onlays were in harmony with the surrounding teeth with good aesthetic effect and suitable marginal fit. Two years later, there were no significant differences in the marginal fitness, gingival health, dental integrity or secondary cavities between the two groups (P > 0.05). In terms of restoration integrity, the VITA Enamic onlays (100%) were intact and displayed good retention. The group that received VITA Suprinity had 6 onlay (9.23%) fractures and a success rate of 90.77%; however, the residual dental tissues did not break. The difference of prosthesis integrity between the two groups was statistically significant (χ 2= 4.45, P < 0.05). Conclusion Chairside CAD/CAM resin hybrid ceramic (VITA Enamic) onlays can quickly restore posterior teeth after root canal therapy and better protect the residual dental tissue.

Key words: Tooth defect, Root canal treatment, Onlay, Chairside, CAD/CAM system, Resin hybrid ceramic

摘要:

目的 探讨应用可切削树脂复合陶瓷作为根管治疗后CAD/CAM高嵌体修复的后牙材料的临床效果,为后牙根管治疗后修复材料的选择提供临床依据。方法 根管治疗后需要进行修复的后牙136颗,选用椅旁CAD/CAM全瓷高嵌体修复缺损牙体,髓腔辅助固位。136颗后牙分为2组,每组各68颗患牙,观察组采用树脂复合陶瓷修复;对照组采用氧化锆增强锂基陶瓷修复。所有高嵌体粘接前检查邻接、就位及咬合情况良好后,氢氟酸酸蚀粘接面,口内橡皮帐隔湿,用双固化树脂水门汀粘接。随访24个月,比较2组修复体完整度、边缘适合性、牙龈健康、牙体完整性、颜色匹配、继发龋发生情况。结果 2组CAD/CAM高嵌体修复后牙冠与周围牙齿协调,美学效果好。修复后24个月,边缘适合性、牙龈健康情况、牙体完整性、颜色匹配、继发龋方面2组差异无统计学意义(P > 0.05)。修复体完整度方面,观察组高嵌体固位好,修复体完整(100%),无破损。对照组出现6颗高嵌体(9.23%)不同程度折断,基牙牙体无断裂,成功率为90.77%。观察组修复体完整性优于对照组,差异具有统计学意义(χ 2=4.45,P < 0.05)。结论 树脂复合陶瓷应用于椅旁CAD/CAM高嵌体,抗折性能优于氧化锆增强锂基陶瓷,能较好地修复根管治疗后的后牙,保护剩余牙体。

关键词: 牙体缺损, 根管治疗, 高嵌体, 椅旁, CAD/CAM系统, 树脂复合陶瓷

CLC Number: