Differenze tra le versioni di "Design and manufacturing of patient-specific orthodontic appliances by computer-aided engineering techniques"

Da Additive Manufactoring.
(Creata pagina con ":'''Authors and full affiliations:''' Sandro Barone, Paolo Neri, Alessandro Paoli, Armando Viviano Razionale :'''Keywords:''' Orthodontics, eruption guidance appliance, tempor...")
 
 
(4 versioni intermedie di uno stesso utente non sono mostrate)
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:'''Authors and full affiliations:''' Sandro Barone, Paolo Neri, Alessandro Paoli, Armando Viviano Razionale
 
:'''Authors and full affiliations:''' Sandro Barone, Paolo Neri, Alessandro Paoli, Armando Viviano Razionale
 
:'''Keywords:''' Orthodontics, eruption guidance appliance, temporomandibular joint
 
:'''Keywords:''' Orthodontics, eruption guidance appliance, temporomandibular joint
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:'''Abstract (original)''' Orthodontic treatments are usually performed using fixed brackets or removable oral appliances, which are traditionally made from alginate impressions and wax registrations. Among removable devices, eruption guidance appliances are used for early orthodontic treatments in order to intercept and prevent malocclusion problems. Commercially available eruption guidance appliances, however, are symmetric devices produced using a few standard sizes. For this reason, they are not able to meet all the specific patient’s needs since the actual dental anatomies present various geometries and asymmetric conditions. In this article, a computer-aided design-based methodology for the design and manufacturing of a patient-specific eruption guidance appliances is presented. The proposed approach is based on the digitalization of several steps of the overall process: from the digital reconstruction of patients’ anatomies to the manufacturing of customized appliances.
 
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A finite element model has been developed to evaluate the temporomandibular joint disks stress level caused by using symmetric eruption guidance appliances with different teeth misalignment conditions. The developed model can then be used to guide the design of a patient-specific appliance with the aim at reducing the patient discomfort. At this purpose, two different customization levels are proposed in order to face both arches and single tooth misalignment issues. A low-cost manufacturing process, based on an additive manufacturing technique, is finally presented and discussed.
 
 
:'''Purpose:''' digitalization of several steps of the overall process: from the digital reconstruction of patients’ anatomies to the manufacturing of customized appliances.  
 
:'''Purpose:''' digitalization of several steps of the overall process: from the digital reconstruction of patients’ anatomies to the manufacturing of customized appliances.  
 
:'''Design/methodology/approach:''' A finite element model has been developed to evaluate the temporomandibular joint disks stress level caused by using symmetric eruption guidance appliances with different teeth misalignment conditions
 
:'''Design/methodology/approach:''' A finite element model has been developed to evaluate the temporomandibular joint disks stress level caused by using symmetric eruption guidance appliances with different teeth misalignment conditions
Riga 10: Riga 8:
 
:'''Practical implications:''' Improved patient life and lower production costs
 
:'''Practical implications:''' Improved patient life and lower production costs
 
:'''Originality/value:''' Better ergonomics of dental implants thanks to the creation of specific models for each patient created with 3D-CAD and AM.  
 
:'''Originality/value:''' Better ergonomics of dental implants thanks to the creation of specific models for each patient created with 3D-CAD and AM.  
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:'''References:''' 1. Ingawale S and Goswami T. Temporomandibular joint: disorders, treatments, and biomechanics. Ann Biomed Eng 2009; 37: 976–996. 3. Bergersen EO. The eruption guidance myofunctional appliance: case selection, timing, motivation, indications and contraindications in its use. Funct Orthod 1985; 2: 17–33. 4. Migliaccio S, Aprile V, Zicari S, et al. Eruption guidance appliance: a review. Eur J Paediatr Dent 2014; 15: 163–166. 5. Popescu D and Laptoiu D. Rapid prototyping for patient-specific surgical orthopaedics guides: a systematic literature review. Proc IMechE, Part H: J Engineering in Medicine 2016; 230: 495–515. 6. Al Mortadi N, Eggbeer D, Lewis J, et al. Design and fabrication of a sleep apnea device using computer-aided design/additive manufacture technologies. Proc IMechE, Part H: J Engineering in Medicine 2013; 227: 350–355. 7. Barone S, Paoli A, Razionale AV, et al. Computational design and engineering of polymeric orthodontic aligners. Int J Numer Method Biomed Eng. 2017; 33: 1–15. DOI: 10.1002/cnm.2839. 8. Kravitz ND, Kusnoto B, BeGole E, et al. How well does Invisalign work? A prospective clinical study evaluating the efficacy of tooth movement with Invisalign. Am J Orthod Dentofacial Orthop 2009; 135: 27–35. 9. Pileicikiene G, Surna A, Barauskas R, et al. Finite element analysis of stresses in the maxillary and mandibular dental arches and TMJ articular discs during clenching into maximum intercuspation, anterior and unilateral posterior occlusion. Stomatologija 2007; 9: 121–128. 10. Li GA, Sakamoto M and Chao EYS. A comparison of different methods in predicting static pressure
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:'''Full references:''' BARONE, Sandro, et al. Design and manufacturing of patient-specific orthodontic appliances by computer-aided engineering techniques. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2018, 232.1: 54-66.
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:'''Link:''' https://journals.sagepub.com/doi/pdf/10.1177/0954411917742945
 
:'''Link:''' https://journals.sagepub.com/doi/pdf/10.1177/0954411917742945

Versione attuale delle 19:30, 8 gen 2020

Authors and full affiliations: Sandro Barone, Paolo Neri, Alessandro Paoli, Armando Viviano Razionale
Keywords: Orthodontics, eruption guidance appliance, temporomandibular joint
Purpose: digitalization of several steps of the overall process: from the digital reconstruction of patients’ anatomies to the manufacturing of customized appliances.
Design/methodology/approach: A finite element model has been developed to evaluate the temporomandibular joint disks stress level caused by using symmetric eruption guidance appliances with different teeth misalignment conditions
Findings: The obtained results demonstrate that standard symmetric implants, which are not customized for the patient-specific anatomy, present critical issues when applied to generic asymmetric anatomie, instead the creation of tailor-made systems would create fewer problems and greater adaptability.
Limitations: The relative placement between maxilla and mandible has a significant influence on the overall patient health
Benefits: low-cost manufacturing process
Practical implications: Improved patient life and lower production costs
Originality/value: Better ergonomics of dental implants thanks to the creation of specific models for each patient created with 3D-CAD and AM.
Full references: BARONE, Sandro, et al. Design and manufacturing of patient-specific orthodontic appliances by computer-aided engineering techniques. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2018, 232.1: 54-66.
Link: https://journals.sagepub.com/doi/pdf/10.1177/0954411917742945
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