Design and clinical outcome of a novel 3D-printed prosthetic joint replacement for the human temporomandibular joint

Ackland, David C.; Robinson, Dale L.; Lee, Peter Vee Sin; Dimitroulis, George

doi:10.1016/j.clinbiomech.2018.05.006

Cited by 45 publications

(26 citation statements)

References 22 publications

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“…Additionally, computational modeling of the masticatory system has proven to be a useful instrument for many orofacial applications outside of the more traditional fields of dentistry. Possibilities include the use for the investigation novel TMJ total joint replacement devices (Detamore et al, 2007; Ackland et al, 2015, 2018; Omidi et al, 2018) as well as areas of orofacial function like speech (Anderson et al, 2015; M. Harandi et al, 2017) and swallowing (Mayer et al, 2016; Wang et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

A Dynamic Jaw Model With a Finite-Element Temporomandibular Joint

et al. 2019

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The masticatory region is an important human motion system that is essential for basic human tasks like mastication, speech or swallowing. An association between temporomandibular disorders (TMDs) and high temporomandibular joint (TMJ) stress has been suggested, but in vivo joint force measurements are not feasible to directly test this assumption. Consequently, biomechanical computer simulation remains as one of a few means to investigate this complex system. To thoroughly examine orofacial biomechanics, we developed a novel, dynamic computer model of the masticatory system. The model combines a muscle driven rigid body model of the jaw region with a detailed finite element model (FEM) disk and elastic foundation (EF) articular cartilage. The model is validated using high-resolution MRI data for protrusion and opening that were collected from the same volunteer. Joint stresses for a clenching task as well as protrusive and opening movements are computed. Simulations resulted in mandibular positions as well as disk positions and shapes that agree well with the MRI data. The model computes reasonable disk stress patterns for dynamic tasks. Moreover, to the best of our knowledge this model presents the first ever contact model using a combination of EF layers and a FEM body, which results in a clear decrease in computation time. In conclusion, the presented model is a valuable tool for the investigation of the human TMJ and can potentially help in the future to increase the understanding of the masticatory system and the relationship between TMD and joint stress and to highlight potential therapeutic approaches for the restoration of orofacial function.

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Section: Discussionmentioning

confidence: 99%

A Dynamic Jaw Model With a Finite-Element Temporomandibular Joint

et al. 2019

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“…By their nature, customized prostheses are unique, patient-specific devices that cannot benefit from batch or mass manufacture, like miniplates [18] or some dental splints [19]. Ackland et al [2], for example, designed a modified Melbourne reconstructed prosthetic to match the patient's native jaw structure. CT scan data of the patient's head were required with a slice thickness of 0.75 mm (SIEMENS, Munich, Germany).…”

Section: Design Of Prosthesesmentioning

confidence: 99%

“…Prosthetic total joint replacement is a medical procedure, which is a last stage surgery for severe degenerative ailment of the temporomandibular joint, including ankyloses, osteoarthritis, serious condylar resorption, cancer and trauma, and is utilized when conservative therapies are ineffective [1]. The main reason for total joint replacement operation of the TMJ is to decrease the soreness and increase jaw function, maximize intra-incisal opening and improve the quality of life for the patient [2]. A significant number of intra-articular temporomandibular pathologies, for example end-stage TMJ osteoarthritis, TMJ ankyloses, severe idiopathic condylar resorption, comminuted condylar fracture and some TMJ tumors, require removing the joint, and hence also require a joint recreation to reestablish the anatomic structure and capacity [3,4].…”

Section: Introductionmentioning

confidence: 99%

A review on computer-aided design and manufacturing of patient-specific maxillofacial implants

Memon

Wang

et al. 2020

Expert Review of Medical Devices

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Introduction: Various prefabricated maxillofacial implants are used in the clinical routine for the surgical treatment of patients. In addition to these prefabricated implants, customized CAD/CAM implants become increasingly important for a more precise replacement of damaged anatomical structures. This paper reviews the design and manufacturing of patient-specific implants for the maxillofacial area. Areas covered: The contribution of this publication is to give a state-of-the-art overview in the usage of customized facial implants. Moreover, it provides future perspectives, including 3D printing technologies, for the manufacturing of patient-individual facial implants that are based on patient's data acquisitions, like Computed Tomography (CT) or Magnetic Resonance Imaging (MRI). Expert opinion: The main target of this review is to present various designing software and 3D manufacturing technologies that have been applied to fabricate facial implants. In doing so, different CAD designing software's are discussed, which are based on various methods and have been implemented and evaluated by researchers. Finally, recent 3D printing technologies that have been applied to manufacture patient-individual implants will be introduced and discussed.

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“…Reshaping the implant during surgery is not always effective to match the patient's anatomy, particularly for complex bone and joint systems such as the temporomandibular joint. Ackland et al (2018) developed an AM prosthesis consisting of a condylar component made of titanium-64, manufactured using SLM, and a high-density polyethylene fossa fabricated using machining techniques. This prosthesis has been successfully implanted into a patient; the joint pain level was subsequently reduced to a negligible level post-operatively (Ackland et al, 2018).…”

Section: 3) Bonementioning

confidence: 99%

The status and challenges of replicating the mechanical properties of connective tissues using additive manufacturing

Miramini

Fegan

Green

et al. 2020

Journal of the Mechanical Behavior of Biomedical Materials

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Design and clinical outcome of a novel 3D-printed prosthetic joint replacement for the human temporomandibular joint

Cited by 45 publications

References 22 publications

A Dynamic Jaw Model With a Finite-Element Temporomandibular Joint

A Dynamic Jaw Model With a Finite-Element Temporomandibular Joint

A review on computer-aided design and manufacturing of patient-specific maxillofacial implants

The status and challenges of replicating the mechanical properties of connective tissues using additive manufacturing

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