Int J Stomatol

Int J Stomatol ›› 2024, Vol. 51 ›› Issue (3): 337-343.doi: 10.7518/gjkq.2024051

• Original Articles • Previous Articles     Next Articles

Application progress on finite element analysis in endocrown restoration

Youhui Cao1(),Xuemei Bao1,2()   

  1. 1.School of Stomatology, Inner Mongolia Medical University, Hohhot 010059, China
    2.Dept. of Stomatology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
  • Received:2023-06-23 Revised:2023-10-26 Online:2024-05-01 Published:2024-05-06
  • Contact: Xuemei Bao E-mail:caoyouhui1023@163.com;bxm1979@126.com
  • Supported by:
    Natural Science Foundation of Inner Mongolia Autonomous Region(2019LH08012)

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Abstract:

The preservation of low occlusal-gingival distance, few residual dental tissues, and dead pulp molar after root canal treatment has good prospects given the updating and upgrading of adhesive materials, the rapid progress of radical pulp technology, and the rapid development of restorative production technology. The preservation of natural teeth and the continuation of residual crown function have made the repairing concept of endocrown accepted and recognized by clinicians. Stress analysis using finite element method has the advantages of being efficient, accurate, and reproducible. This paper reviews the application of finite element method in endocrown repair and discusses precautions in endocrown repair.

Key words: finite element analysis, endocrown, ceramic

CLC Number: 

  • R783.3

TrendMD: 

Tab 1

Finite element stress analysis study of endocrown repair material"

作者年份/年研究类型牙位材料结论
林捷等2021实验性下颌第一磨牙Lava Ultimate（3M公司，美国）、Vita Enamic （VE；Vita公司，德国）、IPS e.max CAD（Ivoclar Vivadent公司，列支敦士登）、Cercon（Dentsply公司，美国）随着髓腔固位冠弹性模量的增加，修复体应力逐渐上升，牙体应力逐渐下降
高琳等2022实验性下颌第二磨牙IPS e.max CAD、IPS Empress and Zirconia修复体材料杨氏模量越高，剩余牙体组织应力越集中
He等2021实验性下颌磨牙Vita Enamic（VITA公司，德国）、IPS e.max CAD（Ivoclar Vivadent公司，列支敦士登）、Grandio Blocs（VOCO公司，德国）弹性模量越高的陶瓷材料IPS e.max CAD对黏固层和剩余釉质组织的保护作用越明显
Meng等2021实验性下颌磨牙feldspathic、lithium disilicate、Lava Ultimate当载荷大小相同时，Lava Ultimate所制作的髓腔固位冠向牙齿组织传递的应力比feldspathic和lithium disilicate大
Tribst等2018实验性上颌磨牙IPS e.max CAD（Ivoclar Vivadent公司，列支敦士登）、IPS Empress CAD（Ivoclar Vivadent公司，列支敦士登）由于白榴石表现出更好的生物力学行为，可能成为一种很有前途的二硅酸锂制作髓腔固位冠的替代品
Ural等2021实验性下颌第一磨牙GC Cerasmart（GC Corp公司，日本）、Lava Ultimate（3M ESPE公司，美国）、Vita Enamic（Vita Zahnfabrik公司，德国）弹性模量较低的材料在牙本质上的应力分布较为均匀，但弹性模量较高的材料对牙本质组织的应力传递也较小
Zheng等2021实验性下颌第一磨牙Vita Suprinity（VS；Vita Zahnfabrik公司，德国）、IPS e.max CAD（Ivoclar Vivadent AG公司，列支敦士登）、Vita Enamic（VITA Zahnfabrik公司，德国）、Lava Ultimate（3M ESPE公司，美国）、Grandio blocs（VOCO公司，德国）髓腔固位冠采用复合树脂时，应力分布更均匀，抗折能力更强。用GR制作的髓腔固位冠具有最好的整体应力分布，满足大面积咬合区域的力学要求
Zheng等2022实验性下颌第一磨牙In-Ceram Zirconia（Vita Zahnfabrik公司，德国）、Vita Suprinity（Vita Zahnfabrik公司，德国）、IPS Empress（Ivoclar Vivadent AG公司，列支敦士登）、Grandio blocs（VOCO公司，德国）、VisCalor bulk（VOCO公司，德国）、CopraPeek Light（CP；Whitepeaks公司，德国）复合树脂GR和VC具有更均匀的应力分布，是一种很有前途的髓腔固位冠的修复材料

Fig 1

Marginal form of endocrown"

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