A three-dimensional finite element analysis of the relationship between masticatory performance and skeletal malocclusion
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Purpose: The aim of this study was to evaluate the transfer of different occlusal forces invarious skeletal malocclusions using finite element analysis (FEA). Methods: Three representative human cone-beam computed tomography (CBCT) imagesof three skeletal malocclusions were obtained from the Department of Orthodontics, YonseiUniversity Dental Hospital, Seoul, South Korea. The CBCT scans were read into the visualizationsoftware after separating bones and muscles by uploading the CBCT images intoMimics (Materialise). Two separate three-dimensional (3D) files were exported to visualizethe solid morphology of skeletal outlines without considering the inner structures. Individualdental impressions were taken and stone models were scanned with a 3D scanner. Theseimages were integrated and occlusal motions were simulated. Displacement and Von Misesstress were measured at the nodes of the FEA models. The displacement and stress distributionwere analyzed. FEA was performed to obtain the 3D deformation of the mandiblesunder loads of 100, 150, 200, and 225 kg. Results: The distortion in all three skeletal malocclusions was comparable. Greater forcesresulted in observing more distortion in FEA. Conclusions: Further studies are warranted to fully evaluate the impact of skeletal malocclusionon masticatory performance using information on muscle attachment and 3D temporomandibularjoint movements.
Abstract
Purpose: The aim of this study was to evaluate the transfer of different occlusal forces invarious skeletal malocclusions using finite element analysis (FEA). Methods: Three representative human cone-beam computed tomography (CBCT) imagesof three skeletal malocclusions were obtained from the Department of Orthodontics, YonseiUniversity Dental Hospital, Seoul, South Korea. The CBCT scans were read into the visualizationsoftware after separating bones and muscles by uploading the CBCT images intoMimics (Materialise). Two separate three-dimensional (3D) files were exported to visualizethe solid morphology of skeletal outlines without considering the inner structures. Individualdental impressions were taken and stone models were scanned with a 3D scanner. Theseimages were integrated and occlusal motions were simulated. Displacement and Von Misesstress were measured at the nodes of the FEA models. The displacement and stress distributionwere analyzed. FEA was performed to obtain the 3D deformation of the mandiblesunder loads of 100, 150, 200, and 225 kg. Results: The distortion in all three skeletal malocclusions was comparable. Greater forcesresulted in observing more distortion in FEA. Conclusions: Further studies are warranted to fully evaluate the impact of skeletal malocclusionon masticatory performance using information on muscle attachment and 3D temporomandibularjoint movements.
참고문헌 (29)
- Sonnesen L, "Molar bite force in relation to occlusion, craniofacial dimensions, and head posture in pre-orthodontic children", Eur J Orthod, 27, pp.58~63 (2005)
- Takeuchi N, "Relationship between the prognosis of periodontitis and occlusal force during the maintenance phase: a cohort study", J Periodontal Res, 45, pp.612~617 (2010)
- Takeuchi N, "Correlation between periodontal status and biting force in patients with chronic periodontitis during the maintenance phase of therapy", J Clin Periodontol, 35, pp.215~220 (2008)
- Misch CE, "The effect of bruxism on treatment planning for dental implants", Dent Today, 21, pp.76~81 (2002)
- Duyck J, "Magnitude and distribution of occlusal forces on oral implants supporting fixed prostheses: an in vivo study", Clin Oral Implants Res, 11, pp.465~475 (2000)
- Davies SJ, "Occlusal considerations in periodontics", Br Dent J, 191, pp.597~604 (2001)
- Sassouni V, "A classification of skeletal facial types", Am J Orthod, 55, pp.109~123 (1969)
- Arnett GW, "Facial keys to orthodontic diagnosis and treatment planning--Part II", Am J Orthod Dentofacial Orthop, 103, pp.395~411 (1993)
- English JD, "Does malocclusion affect masticatory performance?", Angle Orthod, 72, pp.21~27 (2002)
- Choi DS, "Three-dimensional finite element analysis of occlusal stress distribution in the human skull with premolar extraction.", Angle Orthod, 83, pp.204~211 (2013)
- Geng JP, "Application of finite element analysis in implant dentistry: a review of the literature", J Prosthet Dent, 85, pp.585~598 (2001)
- Eskitascioglu G, "The influence of occlusal loading location on stresses transferred to implant-supported prostheses and supporting bone: a three-dimensional finite element study", J Prosthet Dent, 91, pp.144~150 (2004)
- Park JT, "Realization of masticatory movement by 3-dimensional simulation of the temporomandibular joint and the masticatory muscles", J Craniofac Surg, 24, pp.e347~e351 (2013)
- Gateno J, "A new technique for the creation of a computerized composite skull model", J Oral Maxillofac Surg, 61, pp.222~227 (2003)
- Santler G, "Stereolithography versus milled three-dimensional models: comparison of production method, indication, and accuracy", Comput Aided Surg, 3, pp.248~256 (1998)
- Gateno J, "Clinical feasibility of computer-aided surgical simulation (CASS) in the treatment of complex cranio-maxillofacial deformities", J Oral Maxillofac Surg, 65, pp.728~734 (2007)
- Noh H, "Registration accuracy in the integration of laser-scanned dental images into maxillofacial cone-beam computed tomography images", Am J Orthod Dentofacial Orthop, 140, pp.585~591 (2011)
- Rangel FA, "Integration of digital dental casts in cone-beam computed tomography scans", ISRN Dent, 2012, pp.949086~ (2012)
- Swennen GR, "A cone-beam computed tomography triple scan procedure to obtain a three-dimensional augmented virtual skull model appropriate for orthognathic surgery planning", J Craniofac Surg, 20, pp.297~307 (2009)
- Koc D, "Bite force and influential factors on bite force measurements: a literature review", Eur J Dent, 4, pp.223~232 (2010)
- Braun S, "A study of bite force, part 2: relationship to various cephalometric measurements", Angle Orthod, 65, pp.373~377 (1995)
- Braun S, "A study of bite force, part 1: relationship to various physical characteristics", Angle Orthod, 65, pp.367~372 (1995)
- Brudevold F, "A basic study of the chewing forces of a denture wearer", J Am Dent Assoc, 43, pp.45~51 (1951)
- Anderson DJ, "Measurement of stress in mastication. II", J Dent Res, 35, pp.671~673 (1956)
- Floystrand F, "A novel miniature bite force recorder and its clinical application", Acta Odontol Scand, 40, pp.209~214 (1982)
- Gibbs CH, "Occlusal forces during chewing and swallowing as measured by sound transmission", J Prosthet Dent, 46, pp.443~449 (1981)
- Harada K, "Measure of bite force and occlusal contact area before and after bilateral sagittal split ramus osteotomy of the mandible using a new pressure-sensitive device: a preliminary report", J Oral Maxillofac Surg, 58, pp.370~373 (2000)
- Throckmorton GS, "Biomechanics of differences in lower facial height", Am J Orthod, 77, pp.410~420 (1980)
- Furtado GC, "Relationship between the morphology of the maxillary central incisor and horizontal and vertical measurements of the face", Indian J Dent Res, 25, pp.178~183 (2014)