Using the appropriate modulus of elasticity of periodontal ligament matters in stress analysis of human first premolar tooth and periodontium structures
Abstract Although the modulus of elasticity of the human periodontal ligament (EPDL) values used in dentistry widely ranged from 0.01 to 175 MPa, the exact EPDL value has not been determined. This study aimed to verify whether and how EPDL values affect the stress distribution over the tooth and per...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-01-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-85578-y |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841544598387687424 |
|---|---|
| author | Phetcharat Dhammayannarangsi Sorapon Na Lampang Kevin A. Tompkins Vincent Everts Thanaphum Osathanon Chalida Nakalekha Limjeerajarus Nuttapol Limjeerajarus |
| author_facet | Phetcharat Dhammayannarangsi Sorapon Na Lampang Kevin A. Tompkins Vincent Everts Thanaphum Osathanon Chalida Nakalekha Limjeerajarus Nuttapol Limjeerajarus |
| author_sort | Phetcharat Dhammayannarangsi |
| collection | DOAJ |
| description | Abstract Although the modulus of elasticity of the human periodontal ligament (EPDL) values used in dentistry widely ranged from 0.01 to 175 MPa, the exact EPDL value has not been determined. This study aimed to verify whether and how EPDL values affect the stress distribution over the tooth and periodontium structures, and to determine the appropriate EPDL range. A 3D multi-component human first premolar model was created based on a cone-beam computed tomography dataset. Finite element analysis was performed to analyze stress distribution and deformation of the structures under an average Asian occlusal force with different EPDL values (0.0689–68.9 MPa). The low EPDL caused excessive PDL deformation, contributing to a non-uniform stress distribution and localized stress concentration, especially in the cementum, enamel, and dentin. With the low EPDL value, the stress magnitude was overestimated by 1,195%, potentially leading to erroneous conclusions regarding material failure and tooth movement. The EPDL value significantly affects the stress magnitude and distribution over the tooth and periodontium. The appropriate EPDL range of 0.964 ± 0.276 MPa is suggested for human first premolars to ensure accurate and reliable FEA simulations and help avoid misinterpretation of the stress results, which could compromise orthodontic planning and restoration design. |
| format | Article |
| id | doaj-art-88ff49ff57e34ee5b3dba13a726a4d49 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-88ff49ff57e34ee5b3dba13a726a4d492025-01-12T12:24:22ZengNature PortfolioScientific Reports2045-23222025-01-0115111710.1038/s41598-025-85578-yUsing the appropriate modulus of elasticity of periodontal ligament matters in stress analysis of human first premolar tooth and periodontium structuresPhetcharat Dhammayannarangsi0Sorapon Na Lampang1Kevin A. Tompkins2Vincent Everts3Thanaphum Osathanon4Chalida Nakalekha Limjeerajarus5Nuttapol Limjeerajarus6Department of Dental Biomaterials Science, Faculty of Dentistry, Graduate School, Chulalongkorn UniversityDepartment of Dental Biomaterials Science, Faculty of Dentistry, Graduate School, Chulalongkorn UniversityOffice of Research Affairs, Faculty of Dentistry, Chulalongkorn UniversityDepartment of Oral Cell Biology, Faculty of Dentistry, University of Amsterdam and Vrije Universiteit Department of Anatomy, Center of Excellence for Dental Stem Cell Biology, Faculty of Dentistry, Chulalongkorn University Department of Physiology, Center of Excellence in Genomics and Precision Dentistry, Faculty of Dentistry, Chulalongkorn UniversityOffice of Research Affairs, Faculty of Dentistry, Chulalongkorn UniversityAbstract Although the modulus of elasticity of the human periodontal ligament (EPDL) values used in dentistry widely ranged from 0.01 to 175 MPa, the exact EPDL value has not been determined. This study aimed to verify whether and how EPDL values affect the stress distribution over the tooth and periodontium structures, and to determine the appropriate EPDL range. A 3D multi-component human first premolar model was created based on a cone-beam computed tomography dataset. Finite element analysis was performed to analyze stress distribution and deformation of the structures under an average Asian occlusal force with different EPDL values (0.0689–68.9 MPa). The low EPDL caused excessive PDL deformation, contributing to a non-uniform stress distribution and localized stress concentration, especially in the cementum, enamel, and dentin. With the low EPDL value, the stress magnitude was overestimated by 1,195%, potentially leading to erroneous conclusions regarding material failure and tooth movement. The EPDL value significantly affects the stress magnitude and distribution over the tooth and periodontium. The appropriate EPDL range of 0.964 ± 0.276 MPa is suggested for human first premolars to ensure accurate and reliable FEA simulations and help avoid misinterpretation of the stress results, which could compromise orthodontic planning and restoration design.https://doi.org/10.1038/s41598-025-85578-yModulus of elasticityPeriodontal ligamentStress distributionFinite element analysisMulti-component modelFirst premolar |
| spellingShingle | Phetcharat Dhammayannarangsi Sorapon Na Lampang Kevin A. Tompkins Vincent Everts Thanaphum Osathanon Chalida Nakalekha Limjeerajarus Nuttapol Limjeerajarus Using the appropriate modulus of elasticity of periodontal ligament matters in stress analysis of human first premolar tooth and periodontium structures Scientific Reports Modulus of elasticity Periodontal ligament Stress distribution Finite element analysis Multi-component model First premolar |
| title | Using the appropriate modulus of elasticity of periodontal ligament matters in stress analysis of human first premolar tooth and periodontium structures |
| title_full | Using the appropriate modulus of elasticity of periodontal ligament matters in stress analysis of human first premolar tooth and periodontium structures |
| title_fullStr | Using the appropriate modulus of elasticity of periodontal ligament matters in stress analysis of human first premolar tooth and periodontium structures |
| title_full_unstemmed | Using the appropriate modulus of elasticity of periodontal ligament matters in stress analysis of human first premolar tooth and periodontium structures |
| title_short | Using the appropriate modulus of elasticity of periodontal ligament matters in stress analysis of human first premolar tooth and periodontium structures |
| title_sort | using the appropriate modulus of elasticity of periodontal ligament matters in stress analysis of human first premolar tooth and periodontium structures |
| topic | Modulus of elasticity Periodontal ligament Stress distribution Finite element analysis Multi-component model First premolar |
| url | https://doi.org/10.1038/s41598-025-85578-y |
| work_keys_str_mv | AT phetcharatdhammayannarangsi usingtheappropriatemodulusofelasticityofperiodontalligamentmattersinstressanalysisofhumanfirstpremolartoothandperiodontiumstructures AT soraponnalampang usingtheappropriatemodulusofelasticityofperiodontalligamentmattersinstressanalysisofhumanfirstpremolartoothandperiodontiumstructures AT kevinatompkins usingtheappropriatemodulusofelasticityofperiodontalligamentmattersinstressanalysisofhumanfirstpremolartoothandperiodontiumstructures AT vincenteverts usingtheappropriatemodulusofelasticityofperiodontalligamentmattersinstressanalysisofhumanfirstpremolartoothandperiodontiumstructures AT thanaphumosathanon usingtheappropriatemodulusofelasticityofperiodontalligamentmattersinstressanalysisofhumanfirstpremolartoothandperiodontiumstructures AT chalidanakalekhalimjeerajarus usingtheappropriatemodulusofelasticityofperiodontalligamentmattersinstressanalysisofhumanfirstpremolartoothandperiodontiumstructures AT nuttapollimjeerajarus usingtheappropriatemodulusofelasticityofperiodontalligamentmattersinstressanalysisofhumanfirstpremolartoothandperiodontiumstructures |