Dynamic finite element analysis of the human maxillary incisor under impact loading in various directions

Haw Ming Huang; Keng Liang Ou; Wei Nang Wang; Wen Ta Chiu; Che Tong Lin; Sheng Yang Lee

doi:10.1097/01.don.0000157992.29221.41

Dynamic finite element analysis of the human maxillary incisor under impact loading in various directions

Haw Ming Huang, Keng Liang Ou, Wei Nang Wang, Wen Ta Chiu, Che Tong Lin, Sheng Yang Lee

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

The aim of this study was to investigate fracture patterns occurring when a human upper central incisor is subjected to impact loadings at various angles. A two-dimensional finite element (FE) model of the maxillary incisor and surrounding tissues was established. The structural damping factor for the tooth was then calculated and assigned to the model. Dynamic FE analysis was performed to stimulate the associated impacts. Time-dependent traumatic forces at 0°, 45°, and 90° labially to the long axis of the tooth were applied to the model. Von Mises's equivalent stress contours within the FE models were calculated. Our results indicated that tooth damping lagged behind peak stress by 0.05 ms. In addition, we found that impact direction played an important role in terms of outcome for the fractured incisor. These results can, in part, explain the mechanisms underlying the alternative outcomes when upper incisors are subjected to impact.

Original language	English
Pages (from-to)	723-727
Number of pages	5
Journal	Journal of Endodontics
Volume	31
Issue number	10
DOIs	https://doi.org/10.1097/01.don.0000157992.29221.41
Publication status	Published - Oct 2005

Keywords

Dynamic analysis
Finite element
Fracture
Incisor
Stress

ASJC Scopus subject areas

General Dentistry

Access to Document

10.1097/01.don.0000157992.29221.41

Cite this

@article{bc789c4999a84d41a860f73f2fef5e4d,

title = "Dynamic finite element analysis of the human maxillary incisor under impact loading in various directions",

abstract = "The aim of this study was to investigate fracture patterns occurring when a human upper central incisor is subjected to impact loadings at various angles. A two-dimensional finite element (FE) model of the maxillary incisor and surrounding tissues was established. The structural damping factor for the tooth was then calculated and assigned to the model. Dynamic FE analysis was performed to stimulate the associated impacts. Time-dependent traumatic forces at 0°, 45°, and 90° labially to the long axis of the tooth were applied to the model. Von Mises's equivalent stress contours within the FE models were calculated. Our results indicated that tooth damping lagged behind peak stress by 0.05 ms. In addition, we found that impact direction played an important role in terms of outcome for the fractured incisor. These results can, in part, explain the mechanisms underlying the alternative outcomes when upper incisors are subjected to impact.",

keywords = "Dynamic analysis, Finite element, Fracture, Incisor, Stress",

author = "Huang, {Haw Ming} and Ou, {Keng Liang} and Wang, {Wei Nang} and Chiu, {Wen Ta} and Lin, {Che Tong} and Lee, {Sheng Yang}",

note = "Funding Information: This study was supported by a grant (TMU90-Y05-A106) from Taipei Medical University, Taipei, Taiwan, and, in part, by a grant (NHRI-EX93-9106PN) from the National Health Research Institutes, Taipei, Taiwan. ",

year = "2005",

month = oct,

doi = "10.1097/01.don.0000157992.29221.41",

language = "English",

volume = "31",

pages = "723--727",

journal = "Journal of Endodontics",

issn = "0099-2399",

publisher = "Elsevier Inc.",

number = "10",

}

TY - JOUR

T1 - Dynamic finite element analysis of the human maxillary incisor under impact loading in various directions

AU - Huang, Haw Ming

AU - Ou, Keng Liang

AU - Wang, Wei Nang

AU - Chiu, Wen Ta

AU - Lin, Che Tong

AU - Lee, Sheng Yang

N1 - Funding Information: This study was supported by a grant (TMU90-Y05-A106) from Taipei Medical University, Taipei, Taiwan, and, in part, by a grant (NHRI-EX93-9106PN) from the National Health Research Institutes, Taipei, Taiwan.

PY - 2005/10

Y1 - 2005/10

N2 - The aim of this study was to investigate fracture patterns occurring when a human upper central incisor is subjected to impact loadings at various angles. A two-dimensional finite element (FE) model of the maxillary incisor and surrounding tissues was established. The structural damping factor for the tooth was then calculated and assigned to the model. Dynamic FE analysis was performed to stimulate the associated impacts. Time-dependent traumatic forces at 0°, 45°, and 90° labially to the long axis of the tooth were applied to the model. Von Mises's equivalent stress contours within the FE models were calculated. Our results indicated that tooth damping lagged behind peak stress by 0.05 ms. In addition, we found that impact direction played an important role in terms of outcome for the fractured incisor. These results can, in part, explain the mechanisms underlying the alternative outcomes when upper incisors are subjected to impact.

AB - The aim of this study was to investigate fracture patterns occurring when a human upper central incisor is subjected to impact loadings at various angles. A two-dimensional finite element (FE) model of the maxillary incisor and surrounding tissues was established. The structural damping factor for the tooth was then calculated and assigned to the model. Dynamic FE analysis was performed to stimulate the associated impacts. Time-dependent traumatic forces at 0°, 45°, and 90° labially to the long axis of the tooth were applied to the model. Von Mises's equivalent stress contours within the FE models were calculated. Our results indicated that tooth damping lagged behind peak stress by 0.05 ms. In addition, we found that impact direction played an important role in terms of outcome for the fractured incisor. These results can, in part, explain the mechanisms underlying the alternative outcomes when upper incisors are subjected to impact.

KW - Dynamic analysis

KW - Finite element

KW - Fracture

KW - Incisor

KW - Stress

UR - http://www.scopus.com/inward/record.url?scp=26844440367&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=26844440367&partnerID=8YFLogxK

U2 - 10.1097/01.don.0000157992.29221.41

DO - 10.1097/01.don.0000157992.29221.41

M3 - Article

C2 - 16186750

AN - SCOPUS:26844440367

SN - 0099-2399

VL - 31

SP - 723

EP - 727

JO - Journal of Endodontics

JF - Journal of Endodontics

IS - 10

ER -

Dynamic finite element analysis of the human maxillary incisor under impact loading in various directions

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this