Biomechanical Study of Three-Dimensional Printed Titanium Root-Analogue Implant with Porous Surface
10.16156/j.1004-7220.2021.01.14
- VernacularTitle:3D打印表面多孔钛根形种植体的生物力学研究
- Author:
Fang GUO
1
;
Shuo HUANG
1
;
Min HU
2
;
Chao WANG
3
;
Changkui LIU
1
Author Information
1. College of Stomatology, Xi’an Medical University
2. Department of Oral and Maxillofacial Surgery, General Hospital of Chinese PLA
3. Chongqing Key Laboratory of Oral Diseases and Biomedical Science, Affiliated Stomatology Hospital of Chongqing Medical Universit
- Publication Type:Journal Article
- Keywords:
three-dimensional (3D) printing;
root-analogue implants;
porous surface;
immediate implantation
- From:
Journal of Medical Biomechanics
2021;36(1):E085-E091
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate biomechanical properties of personalized titanium root-analogue implants with porous surface, so as to provide theoretical basis for the design and clinical implantation of such implants. Methods Based on CT data, the personalized model of root-analogue implant with porous surface was designed by using 3-matic software, and after registering it with the mandible model, the mesh was divided and material parameters were attributed. The implant was applied with 200 N loading, and the maximum stress of the implant and the stress and strain of the bone around the implant were analyzed. An appropriate clinical case was selected and the implant was implanted immediately after tooth extraction for conducting clinical evaluation. Results The peak stress of the personalized root-analogue implant with porous surface was mainly concentrated on the interface between the solid structure and the porous structure of the implant. The maximum stresses of the solid structure and porous structure were 137.710 and 37.008 MPa, respectively, which were smaller than its yield strength. The three-dimensional (3D) printed porous root-analogue implants had good initial stability immediately after implantation, with minimal trauma and similar mechanical transmission to natural teeth. This simplified the surgical process, shortened the treatment time, and had high patient satisfaction. Conclusions The 3D printed root-analogue implant with porous surface explores a new method for immediate implantation after tooth extraction.
