口腔医学研究

口腔医学研究 ›› 2025, Vol. 41 ›› Issue (5): 391-394.DOI: 10.13701/j.cnki.kqyxyj.2025.05.006

• 口腔种植学研究 • 上一篇    下一篇

咬合面开孔直径对种植全瓷冠抗折性的影响

连颂峰1, 田菊梅2*, 蔡坤灿3, 陈驰1   

  1. 1.华侨大学附属厦门长庚医院口腔科 福建 厦门 361028;
    2.厦门医学院口腔医学院,口腔生物材料福建省高校工程研究中心 福建 厦门 361023;
    3.厦门市仿真美义齿科技有限公司 福建 厦门 361000
  • 收稿日期:2024-11-25 出版日期:2025-05-28 发布日期:2025-05-26
  • 通讯作者: *田菊梅,E-mail: 201400010312@xmmc.edu.cn
  • 作者简介:连颂峰(1981~ ),男,福建永泰人,硕士,副主任医师,研究方向:口腔临床修复学及其相关材料。
  • 基金资助:
    厦门市医疗卫生指导性项目(编号:3502Z20224ZD1130)口腔生物材料福建省高校工程研究中心开放课题资助课题(编号:XMMC-OS2023003)

Effect of Occlusal Surface Hole with Different Diameters on Fracture Loads of Implant-supported Full Zirconium Crown

LIAN Songfeng1, TIAN Jumei2*, CAI Kuncan3, CHEN Chi1   

  1. 1. Department of Stomatology, Xiamen ChangGung Hospital HuaQiao University, Xiamen 361028, China;
    2. School of Stomatology, Xiamen Medical College, Engineering Research Center of Stomatological Biomaterials of Fujian Provincial University, Xiamen Medical College, Xiamen 361023, China;
    3. Xiamen FangZhengMei Prosthesis Co. Ltd.,Xiamen 361000, China
  • Received:2024-11-25 Online:2025-05-28 Published:2025-05-26

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摘要： 目的: 对比分析咬合面开孔直径的差异对两种氧化锆种植全瓷冠折裂强度的影响。方法: 采用计算机辅助设计和计算机辅助制作的方式及制作磨牙形态单层氧化锆全瓷冠(全锆冠)共80个,根据所用氧化锆材料[绚彩全锆冠(X组)、赛瓷全锆冠(S组)]及全锆冠咬合面孔洞形式(无孔洞及直径分别为1 mm、2 mm、3 mm的孔洞)的不同将全锆冠分成8组(X0、X1、X2、X3及S0、S1、S2、S3),每组各10个。所有全锆冠粘结于统一切削制作的纯钛基台上,然后在万能电子试验机上接受轴向持续加载至牙冠折裂。采用双因素方差分析法对各组试件折裂时的载荷力值(FL)进行统计分析。结果: 4种不同开孔直径试件的FL无显著差异(P＞0.05);S组的FL显著高于X组(P<0.001);氧化锆材料因素与开孔直径因素之间无交互效应(P＞0.05)。各组试件FL值均远超正常男女磨牙区的生理性最大咬合力。结论: 1 mm、2 mm及3 mm的咬合面开孔直径不会降低种植全锆冠的抗折性,并且该结果不受氧化锆材料本身抗折强度的影响。

关键词: 咬合面孔洞, 种植全瓷冠, 全锆冠, 抗折性

Abstract: Objective: To compare the fracture loads of two types of implant-supported full zirconium crowns (IFZC) with occlusal surface hole at different diameters. Methods: Eighty molar full zirconium crowns (FZCs) with 4 types of occlusal surface holes were fabricated with 2 types of zirconia by computer aided design and computer aided manufacturing (CAD/CAM), and were divided into 8 groups: Xuncai zirconia without hole (X0) and with hole of 1 mm-diameter (X1), 2 mm-diameter (X2), and 3 mm-diameter (X3), Saici zirconia without hole (S0) and with hole of 1 mm-diameter (S1), 2 mm-diameter (S2), and 3 mm-diameter (S3). After cemented to identically milled titanium abutments, all specimens were subjected to a load-to-fracture test in a universal testing machine. The fracture loads (FL) of each group were analyzed by two-way ANOVA test. Results: There was no significant difference among groups with different types of occlusal surface hole. The FL of S groups (S0, S1, S2, S3) were significant higher than those of X groups (X0, X1, X2, X3) (P<0.001), and there was no counteraction between zirconia material and the holes with different diameter (P＞0.05). Conclusion: A 1 mm-, 2 mm-, or 3 mm-diameter-hole on the occlusal surface might not reduce the fracture resistance of IFZCs, which was not affected by the strength of zirconia material.

Key words: occlusal hole, implant-supported ceramic crown, full zirconium crown, fracture resistance