The 3D finite element study on implant restoration in the maxillary anterior region with different palatal bone plate thicknes-ses
10.13591/j.cnki.kqyx.2025.07.005
- VernacularTitle:不同腭侧颈部骨板厚度对上颌前牙区种植修复体受力影响的三维有限元研究
- Author:
Xiya ZHANG
1
;
Mengfei BI
1
;
Feifan LI
1
;
Meiqi WU
1
;
Ming SHEN
1
Author Information
1. 南京医科大学附属口腔医院综合诊疗科,口腔疾病研究与防治国家级重点实验室培育建设点(南京医科大学),江苏省口腔转化医学工程研究中心,江苏南京(210029)
- Publication Type:Journal Article
- Keywords:
implant restoration;
maxillary anterior teeth;
palatal bone plate;
three-dimensional finite element analysis
- From:
STOMATOLOGY
2025;45(7):506-510
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the differences in stress on maxillary anterior implants and labial cortical bone under varying thicknesses of palatal bone plates through three-dimensional finite element analysis.Methods Using CBCT scan data and finite ele-ment software,a three-dimensional finite element model of maxillary central incisor implant restoration was constructed.The thickness of the palatal bone plate at the cervical region of the implant was set to 0,0.5,1.0 mm,respectively.The effects of different palatal bone plate thicknesses on the equivalent stress of the implant and the minimum principal stress(compressive stress)of the labial corti-cal bone under normal occlusal conditions were simulated.Results Under normal occlusion,when the palatal cervical bone plate thickness was 0,0.5,1.0 mm,the maximum equivalent stress of the implant was consistently located at the midline of the labial cervi-cal region at the implant-abutment interface,with values of 106.8,103.5,99.71 MPa,respectively.Meanwhile,the minimum princi-pal stress of the cortical bone appeared at the alveolar crest at the junction of the implant-abutment and labial alveolar bone,measuring 107.8,103.2,95.55 MPa,respectively.The results indicated that as the palatal cervical bone plate thickness decreased,both the maximum equivalent stress of the implant and the minimum principal stress of the labial cortical bone exhibited an increasing trend,though they remained below their respective yield strengths.Conclusion From a biomechanical perspective,maxillary anterior implant restoration remains feasible even when the thickness of the palatal bone plate at the cervical region of the implant is 0 mm.
