光固化和双重固化玻璃离子水门汀修复牙体的效果比较

Light-cured glass ionomer versus resin reinforced glass ionomer for dental restoration

背景:玻璃离子水门汀作为新型齿科修复材料,具有与牙体粘接性强,对牙体刺激性小,可有效防龋等优点,目前被广泛应用于临床牙齿充填、黏结、洞基衬,牙本质过敏治疗及暂封等。目的:比较光固化玻璃离子水门汀与双重固化玻璃离子水门汀修复牙体的效果。方法:选择48例龋齿患者,以随机数字表方法分为2组,分别采用光固化玻璃离子水门汀与双重固化玻璃离子水门汀修复牙体,随访6个月-2年,通过修复体完整程度、边缘密闭性、继发龋发生与牙周及牙髓病变等对比分析两组修复效果。结果与结论:修复6个月复查,光固化玻璃离子水门汀组修复成功率为97%,双重固化离子水门汀组修复成功率为99%,两组比较差异无显著性意义(P>0.05)。修复2年后复查,光固化玻璃离子水门汀组修复成功率为74%,双重固化离子水门汀组修复成功率为92%,两组比较差异有显著性意义(P<0.05)。表明双重固化玻璃离子水门汀材料修复体保持完整时间更长,边缘密闭性更好,继发龋和牙髓及牙周病变发生率更低,更适用于临床应用。

BACKGROUND: Glass ionomer cement is a kind of new dental material. It has strong adhesiveness, low irritating, which is perfect to prevent dental caries. Currently, glass ionomer cement has been widely used in dental fil ing, adhesive, hole-lining, dentin hypersensitivity and temporary sealing. OBJECTIVE: To compare the repair effects of light-cured glass ionomer and resin reinforced glass ionomer on dental restoration. METHODS: Forty-eight dental caries patients were randomly divided into two groups: one group was repaired by light-cured glass ionomer and the other by resin reinforced glass ionomer. A fol ow-up of 6 months to 2 years was performed by comparison of integrityof the prosthesis, edge sealing, secondary caries and periodontal and endodontic lesions. RESULTS AND CONCLUSION: The fol ow-up of 6 months showed that the successful rate was 97% in the light-cured glass ionomer group and 99% in the resin reinforced glass ionomer group was 99%. There were no significant difference between the successful rates of the two groups after fol ow-up for 6 months (P > 0.05). The fol ow-up of 2 years showed that the successful rate was 74% in the light-cured glass ionomer group and 92% in the resin reinforced glass ionomer group, and a significant difference occurred between the two groups (P < 0.05). The fol ow-up results displayed that the resin reinforced glass ionomer restoration is characterized as longer time to keep the integrity, better sealing, lower incidence rate of cervical caries and pulp and periodontal lesions. The material of resin reinforced glass ionomer is more convenient for the clinical use.