Temporomandibular joint loading generated during bilateral static bites at molars and premolars

Abe, Makoto; Medina-Martinez, Raul U.; Itoh, Ken‐ichi; Kohno, Shoji

doi:10.1007/s11517-006-0075-8

Cited by 6 publications

(2 citation statements)

References 31 publications

(78 reference statements)

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“…They are however well reproduced under the assumption of the mandible disocclusion retained in this work. Relationships between TMJ's reactions and occlusal forces during mastication are relatively well understood [13,24,65]. Nonetheless, the role of TMJs during the impact to the mandible is still not clarified.…”

Section: Discussionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Żmudzki,

Chladek,

Panek

et al. 2019

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The paper aims was assessing risks of mandible fractures consequent to impacts or sport accidents. The role of the structural stiffness of mandible, related to disocclusion state, was evaluated using the finite element method. It has been assumed, that the quasi-static stress field, due to distributed forces developed during accidents, could explain the common types of mandibular fractures. Mandibular condyles were supposed jammed in the maxillary fossae. The force of 700 N, simulating an impact on mandible, has been sequentially applied in three distinct areas: centrally, at canine zone and at the mandibular angle. Clinically most frequent fractures of mandible were recognized through the analysis of maximal principal stress/strain fields. It has been shown that mandibular fracture during accidents can be analyzed at satisfactory level using linear quasi-static models for designing protections.

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Section: Discussionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Żmudzki,

Chladek,

Panek

et al. 2019

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“…Different methodologies have been described in the literature to estimate loads acting at the condyle level. [9][10][11][12] However, only simplified models were presented in these papers. Furthermore, most of these approaches required experimental measurements of the biting force and no orthodontic appliances were taken into account.…”

Section: Introductionmentioning

confidence: 99%

Design and manufacturing of patient-specific orthodontic appliances by computer-aided engineering techniques

Barone

Neri

Paoli

et al. 2017

Proc Inst Mech Eng H

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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. 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.

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