Current status of researches on jaw movement and occlusion for clinical application

Bando, Eiichi; Nishigawa, Keisuke; Nakano, Masami; Takeuchi, Hironori; Shigemoto, Shuji; Okura, Kazuo; Satsuma, Toyoko; Yamamoto, Takeshi

doi:10.1016/j.jdsr.2009.04.001

Cited by 29 publications

(20 citation statements)

References 58 publications

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“…5 and 6). In order to reproduce anatomical movements accurately, robots ought to have 6 degrees of freedom of movement, 3 translations and 3 rotations, with high movement accuracy [28]. The first prototypes of robots for clinical purposes were built using delta mechanics (Video 3), also called parallel robots [29].…”

Section: Methodsmentioning

confidence: 99%

Individual mandibular movement registration and reproduction using an optoeletronic jaw movement analyzer and a dedicated robot: a dental technique

et al. 2020

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Background Fully adjustable articulators and pantographs record and reproduce individual mandibular movements. Although these instruments are accurate, they are operator-dependant and time-consuming. Pantographic recording is affected by inter and intra operator variability in the individuation of clinical reference points and afterwards in reading pantographic recording themselves. Finally only border movements can be reproduced. Methods Bionic Jaw Motion system is based on two components: a jaw movement analyzer and a robotic device that accurately reproduces recorded movements. The jaw movement analyzer uses an optoelectronic motion system technology made of a high frequency filming camera that acquires 140frames per second and a custom designed software that recognizes and determines the relative distance at each point in time of markers with known geometries connected to each jaw. Circumferential modified retainers connect markers and do not cover any occlusal surfaces neither obstruct occlusion. The recording process takes 5 to 10 s. Mandibular movement performance requires six degrees of freedom of movement, 3 rotations and 3 translations. Other robots are based on the so-called delta mechanics that use several parallel effectors to perform desired movements in order to decompose a complex trajectory into multiple more simple linear movements. However, each parallel effector introduces mechanical inter-component tolerances and mathematical transformations that are required to transform a recorded movement into the combination of movements to be performed by each effector. Bionic Jaw Motion Robot works differently, owing to three motors that perform translational movements and three other motors that perform rotations as a gyroscope. This configuration requires less mechanical components thus reducing mechanical tolerances and production costs. Both the jaw movement analyzer and the robot quantify the movement of the mandible as a rigid body with six degrees of freedom. This represents an additional advantage as no mathematical transformation is needed for the robot to reproduce recorded movements. Results Based on the described procedure, Bionic Jaw Motion provide accurate recording and reproduction of maxillomandibular relation in static and dynamic conditions. Conclusion This robotic system represents an important advancement compared to available analogical and digital alternatives both in clinical and research contexts for cost reduction, precision and time saving opportunities.

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Section: Methodsmentioning

confidence: 99%

Individual mandibular movement registration and reproduction using an optoeletronic jaw movement analyzer and a dedicated robot: a dental technique

et al. 2020

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“…The Posselt envelope is widely used to depict the working space of the incisor, and is characterized by three extreme movement paths: extreme posterior opening, extreme anterior closing and maximum upper glide, as shown in Figure 3 (Xu et al, 2008a(Xu et al, , 2008b(Xu et al, , 2008cBando et al, 2009). On an average, the largest maximum displacement for the Posselt envelope was found to be 33 Ϯ 7, 10 Ϯ 2 and16 Ϯ 4 mm in the vertical, protrusive and lateral directions, respectively (Hansma et al, 2006).…”

Section: Motion and Force Design Specificationsmentioning

confidence: 99%

A biomimetic chewing robot of redundantly actuated parallel mechanism

Wang

Cong

Wang

et al. 2015

Industrial Robot: An International Journal

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2015),"Rough set based modeling for welding groove bottom state in narrow gap MAG welding", If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -This paper aims to describe how a novel biomimetic chewing robot was designed, including its motion, force, control and mechanical designs, and shows some initial experiments about motion tracking. Design/methodology/approach -According to the biomechanics, the authors modeled the muscles of mastication in six linkages and the temporomandibular joint in higher kinematic pairs of point contact. As a result, the chewing robot was represented in a redundantly actuated parallel mechanism. With reference to literature data on the biological system, the authors specified the motion and force requirements for the robot via inverse kinematics and force analysis. A prototype of the robot was built, which has a position control system and is driven by six linear actuators. Experiments were conducted to show the capability of the robot in reproducing the human chewing motion. Findings -A chewing robot was successfully modeled and developed, which is able to simulate the motion of human mastication in a biologically faithful way. Practical implications -The chewing robot as a scientific instrument can be used to test dental materials and evaluate food textural properties of chewing. Originality/value -Two higher kinematic pairs of point contact are proposed to simulate the two temporomandibular joints. The mechanism of the novel chewing robot is the first of this kind, which has two higher kinematic pairs of point contact and is a redundantly actuated spatial parallel mechanism.

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“…Outro quesito importante no estudo dos movimentos mandibulares é a reprodução fiel, executada sem empecilhos ou dificuldades pelo paciente. Neste aspecto, além de preciso, o método selecionado é simples e não exige a conexão física entre a base de medição e a mandíbula, como ocorreu nos trabalhos de Gibbs (1971), Karlsson et al (1991) e Bando et al (2009).…”

Section: Resultsunclassified

“…Um estudo sobre o estágio atual das pesquisas sobre o movimento mandibular e oclusão para aplicação clínica foi realizado por Bando et al (2009). (Brekke, 1969;Brotman, 1960;Getz et al, 1988;Wood;Korne, 1992 (Farrar ,1978).…”

Section: Movimentos Mandibularesunclassified

“…onde ocorre a maior concentração de CIRs não está localizado na cabeça do côndilo, então a articulador não é capaz de reproduzir o movimento de abertura e fechamento mandibular(Bando et a., 2009) Tuijt et al, (2010). utilizaram o simulador descrito no capítulo 2 para a reprodução dos movimentos mandibulares e concluíram que as forças de reação nas articulações temporomandibulares foram maiores durante o movimento de abertura do que durante o movimento de fechamento, contrariando os resultados do trabalho de Gallo et al (2008).…”

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Centros instantâneos de rotação mandibular por meio de processamento de imagem obtida por metodologia optoeletrônica

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Current status of researches on jaw movement and occlusion for clinical application

Cited by 29 publications

References 58 publications

Individual mandibular movement registration and reproduction using an optoeletronic jaw movement analyzer and a dedicated robot: a dental technique

Individual mandibular movement registration and reproduction using an optoeletronic jaw movement analyzer and a dedicated robot: a dental technique

A biomimetic chewing robot of redundantly actuated parallel mechanism

Centros instantâneos de rotação mandibular por meio de processamento de imagem obtida por metodologia optoeletrônica

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