评估严重受损的内治疗前牙的骨折行为,具有不同的核心系统
Marine Ortiz-Magdaleno1, Marlene Castillo-Sanay1, Norma Verónica Zavala-Alónso2
1Specialty in Aesthetic, Cosmetic, Restorative, and Implant Dentistry, Faculty of Stomatology, Autonomous University of San Luis Potosi, San Luis Potosi, Mexico.
Journal of clinical and experimental dentistry
|January 26, 2026
概括
核心积累中的聚乙烯丝带纤维显著提高了内牙治疗前牙的骨折抵抗力. 这种材料为恢复严重损坏的牙提供了传统玻璃纤维柱子的可行替代品.
科学领域:
- 牙科材料科学 牙科材料科学
- 恢复性牙科 恢复性牙科
- 牙周内科医院 牙周内科医院 牙周内科医院
背景情况:
- 严重受损的前牙往往需要内牙治疗,然后进行核心积累.
- 评估这些恢复的牙的骨折行为对于临床成功至关重要.
- 传统的邮政系统可能并不总是在所有情况下都是最优的.
研究的目的:
- 为了评估内牙治疗前牙与核心积累的骨折特征.
- 为了比较聚乙烯丝带纤维在不同方向的性能与玻璃纤维柱和仅核心的恢复.
主要方法:
- 40个人类大切口经历了内牙治疗和核心积累.
- 牙被分为四组:玻璃纤维柱,水平聚乙烯丝带纤维,垂直聚乙烯丝带纤维和只有核心.
- 应用静态负载来确定断裂负载,故障模式,应变和应力.
主要成果:
- 聚乙烯带纤维组 (垂直和水平) 呈现出最高的断裂负载.
- 核心积累与水平插入的聚乙烯丝带纤维产生了最大的平均最大应变,应力和断裂强度.
- 失败模式在不同组中显示了灾难性和非灾难性失败的不同比例.
结论:
- 使用短纤维树脂复合材料与聚乙烯丝带纤维 (垂直或水平) 的核心是一个有前途的替代方案.
- 这种方法为严重受损的内牙治疗前牙提供了增强的骨折抵抗力.
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