BACKGROUND:Post-core restoration of dental defects can restore the morphology and function of the teeth. Glass fiber post and casting metal post are commonly used in the post-core restoration, and have different repair effects. OBJECTIVE:To compare the effect of glass fiber post and metal post restoration for dental defects. METHODS:97 patients of dental defects in 146 teeth were divided into two groups, glass fiber post group (49 cases, 74 teeth) and casting metal post group (48 cases, 72 teeth). Al patients were folowed up for 12 months. Periodontal alkaline phosphatase levels, integrity of dental prosthetics, edge matching condition, color matching condition, crown post rupture, prosthetic loosening and dental root rupture were observed before repair and 24 hours after repair. RESULTS AND CONCLUSION:At 24 months after repair, alkaline phosphatase levels in the casting metal post group were significantly increased compared with before repair (P< 0.05), and were obviously higher than that in the glass fiber post group (P< 0.05), there was no significant differen ce in the glass fiber post group before andafter repair (P > 0.05). The edge matching condition and color matching condition in the glass fiber post group were significantly better than that in the casting metal post group (P< 0.05). Six teeth in the glass fiber post group and 17 teeth in the casting metal post group appeared crown post rupture, and the successful repair rate in the glass fiber post group was significantly higher than that in the casting metal post group (91.9%, 76.4%,P< 0.05). Compared with casting metal post, glass fiber post can restore better appearance, better mechanical functions, higher success rate and fewer impact on periodontal tissue.%背景:桩核修复临床牙体缺损可良好恢复牙齿形态和功能,目前常用的桩核修复体有玻璃纤维桩和铸造金属桩,两种桩核修复体在修复效果方面存在一定差异.目的:比较玻璃纤维桩和铸造金属桩修复牙体缺损的效果.方法:纳入牙体缺损修复患者97例(146颗牙),其中49例(74颗牙)采用玻璃纤维桩修复,48例(72颗牙)采用铸造金属桩修复.修复后随访24个月,观察牙周碱性磷酸酶水平、修复体完整情况、边缘适合情况、颜色匹配情况、桩钉折断、修复体松动脱落及牙根折裂情况.结果与结论:修复后24个月,铸造金属桩组碱性磷酸酶水平较修复前显著上升(P < 0.05),且明显高于玻璃纤维桩组(P < 0.05),玻璃纤维桩组修复前后的碱性磷酸酶水平无明显变化(P > 0.05);玻璃纤维桩组修复体边缘适合情况及颜色匹配情况显著优于铸造金属桩组(P均< 0.05);玻璃纤维桩组有6颗出现桩核冠损坏,铸造金属桩组有17颗出现桩核冠损坏,试验组修复成功率(91.9%)显著高于铸造金属桩组(76.4%)( P < 0.05).与铸造金属桩比较,玻璃纤维桩修复牙体缺损更美观,力学性能更好,修复成功率更高,对牙周影响更轻.
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