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玻璃纤维内牙柱的推出键强度,直径不同的内牙柱

Zsolt Rajnics¹, Dávid Pammer², Anikó Kőnig-Péter³

¹Faculty of Medicine, Dental School, University of Pécs, 7623 Pécs, Hungary.

Materials (Basel, Switzerland)

|April 13, 2024

概括

柱子直径显著影响玻璃纤维柱子在经过牙科治疗的牙中保持,更大的直径显示出更高的绝对推出键强度,但每面积的键强度较低. 根部没有影响后保留.

科学领域:

牙周内科医院牙周内科医院牙周内科医院
牙科材料科学牙科材料科学
恢复性牙科恢复性牙科

背景情况:

牙内膜后保留对于内牙治疗牙的长期成功至关重要.
玻璃纤维柱通常由于其有利的机械性能和美学而被使用.
了解影响后保留的因素对于可预测的临床结果至关重要.

研究的目的:

为了评估玻璃纤维柱子的推出键强度 (PBS).
为了研究柱子直径对PBS的影响.
评估根部 (顶部,中部,冠状) 对PBS的影响.

主要方法:

使用了40个被摘冠的,根管填充的前.
四个不同直径 (1.0,1.2,1.5,2.0毫米) 的玻璃纤维柱子用树脂水泥进行了接.
来自顶峰,中部和冠状区域的根切片经过了推出键强度测试.

主要成果:

柱子直径显著影响了PBS (p=0.023和p=0.003).
2.0毫米的柱子呈现出最高的绝对PBS (111.99 ± 10.40N),而1.0毫米的柱子则是最低的 (99.98 ± 8.05N).
然而,1.0毫米的柱子显示出每块粘合面积的最高PBS (18.20±1.67MPa),2.0毫米的柱子显示出最低的PBS (12.08±1.05MPa).
在顶端,中间和冠状根区域之间没有发现PBS的显著差异 (p=0.219).

结论:

柱子直径是一个重要的因素,它影响了线内柱子的推出键强度.
虽然直径较大的柱子表现出更高的绝对粘合强度,但直径较小的柱子相对于其表面积而言具有更高的粘合强度.
根部的区域不会显著影响光玻璃纤维柱的结合强度.

关键词:

公共服务服务 (PBS)牙周内的帖子牙周内帖有光纤的柱子,有光纤的柱子.预制柱子预制柱子推出去的债券强度强度强度.

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