A novel sensor for bite force determinations

Fernandes, Cláudio Pinheiro; Glantz, Per‐Olof; Svensson, Stig A; Bergmark, Åke

doi:10.1016/s0109-5641(02)00020-9

Cited by 148 publications

(123 citation statements)

References 26 publications

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“…That value agrees with our data for punctual forces measurements. In addition, Fernandes et al, [6] also showed forces of 100 N and 75 N, for male and female volunteers, respectively, obtained with strain gauge sensors. These values also confirm the magnitude values obtained in the present research.…”

Section: In Vivomentioning

confidence: 92%

“…The great variability of results for maximum bite force can be associated to several factors such as: age, gender, body mass index, temporomandibular disorders, strength of the muscles, craniofacial morphology, occlusal state, periodontal condition and psychological factors [2]. The study performed by Fernandes et al [6] published the use of a strain-gauge transducer to determine forces of adults with normal occlusion and the effect of facial shapes on it [7]. Marquezin et al shows the use of strain gages to measure bite forces in primary children dentition in comparison to preschool children [8].…”

mentioning

confidence: 99%

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The force magnitude of a human bite measured at the molar intercuspidation using fiber Bragg gratings

Abe

Milczewski

Souza

et al. 2017

J. Microw. Optoelectron. Electromagn. Appl.

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Abstract-This study describes a localized method -using optical fiber Bragg gratings (FBGs) -to determine the human bite force at the very moment of occlusion, in maximum intercuspidation. The FBG was encapsulated in a silicone splint between uppers and lowers first molars and avoiding pre-contact with the other teeth in a dentition model. Gypsum dental castings of two volunteers are performed in a semi-adjustable articulator in the occluded situation to maintain angulations of the occlusal plane within normal occlusion. The sensor was characterized in vitro for both volunteers and the human bite force is measured in vivo. The orthodontic forces on the sensor are acquired at four moments: before of occlusion (free situation), occlusion, biting and maximum bite. The measured maximum bite forces are 85 N for female (brachyfacial) volunteer and 76 N for male (mesofacial) volunteer, between right uppers and lowers first molars. The difference can be associated to the facial pattern. The results obtained show the possibility to employ the optical encapsulated sensor to perform measurements of orthodontic forces in order to analysis different types of facial patterns with minimum of interference at occlusion.Index Terms-fiber Bragg gratings, human bite force, in vivo measurements, optical fiber sensors.

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Section: In Vivomentioning

confidence: 92%

mentioning

confidence: 99%

The force magnitude of a human bite measured at the molar intercuspidation using fiber Bragg gratings

Abe

Milczewski

Souza

et al. 2017

J. Microw. Optoelectron. Electromagn. Appl.

View full text Add to dashboard Cite

show abstract

“…Ni posle višegodišnjih istraživanja, uloga okluzalnih faktora u razvoju disfunkcije TMZ nije konačno definisana. Mnogobrojne studije potvrđuju ulogu okluzalnih faktora u razvoju KMD, istovremeno naglašavajući da njihov uticaj nije od primarnog značaja [15][16][17][18] , ali postoje studije koje negiraju ulogu i značaj okluzije na razvoj KMD 19 . Uprkos brojnim kontroverzama, danas preovladava stav da okluzalni faktori nemaju primarnu ulogu u etiologiji KMD-a, ali sasvim izvesno, makar delimično, participiraju i mogu da dovedu do egzacerbacije simptoma ovih oboljenja kod individua kod kojih su KMD nastale kao posledica traume, kongenitalnih poremećaja, sistemskih oboljenja ili emocionalnog stresa, čija se uloga u nastanku ovih oboljenja sve više naglašava poslednjih godina [20][21][22] .…”

Section: Diskusijaunclassified

“…Even after several years of research, the role of occlusal factors in the development of TMJ dysfunction has not been defined yet. Numerous studies confirmed the role of occlusal factors in the development of CMD, while stressing that their impact is not of primary significance [15][16][17][18] . Also, there are studies that deny the role and importance of occlusion in development of CMD 19 .…”

Section: Discusionmentioning

confidence: 99%

Evaluation of Helkimo anamnestic and dysfunction index in identical twins

Kucevic¹,

Eminovic²,

Kajevic³

et al. 2016

Acta stomatologica Naissi

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“…The total number of elements for each model is thus Pan ϭ 257,869; Gorilla ϭ 168,784; Homo ϭ 288,601; A. anamensis ϭ 272,503. These models were then subjected to an applied pressure of 1 MPa as predicted to occur during human mastication (Fernandes et al, 2003), which was applied perpendicular to the predominant direction (i.e., y-direction) of the enamel block. The model was fixed inferiorly at the x-z plane.…”

Section: Finite-element Modeling and Analysesmentioning

confidence: 99%

Australopithecus anamensis: A finite‐element approach to studying the functional adaptations of extinct hominins

et al. 2005

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Australopithecus anamensis is the stem species of all later hominins and exhibits the suite of characters traditionally associated with hominins, i.e., bipedal locomotion when on the ground, canine reduction, and thick-enameled teeth. The functional consequences of its thick enamel are, however, unclear. Without appropriate structural reinforcement, these thick-enameled teeth may be prone to failure. This article investigates the mechanical behavior of A. anamensis enamel and represents the first in a series that will attempt to determine the functional adaptations of hominin teeth. First, the microstructural arrangement of enamel prisms in A. anamensis teeth was reconstructed using recently developed software and was compared with that of extant hominoids. Second, a finite-element model of a block of enamel containing one cycle of prism deviation was reconstructed for Homo, Pan, Gorilla, and A. anamensis and the behavior of these tissues under compressive stress was determined. Despite similarities in enamel microstructure between A. anamensis and the African great apes, the structural arrangement of prismatic enamel in A. anamensis appears to be more effective in load dissipation under these compressive loads. The findings may imply that this hominin species was well adapted to puncture crushing and are in some respects contrary to expectations based on macromorphology of teeth. Taking together, information obtained from both finite-element analyses and dental macroanatomy leads us to suggest that A. anamensis was probably adapted for habitually consuming a hard-tough diet. However, additional tests are needed to understand the functional adaptations of A. anamensis teeth fully.

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A novel sensor for bite force determinations

Cited by 148 publications

References 26 publications

The force magnitude of a human bite measured at the molar intercuspidation using fiber Bragg gratings

The force magnitude of a human bite measured at the molar intercuspidation using fiber Bragg gratings

Evaluation of Helkimo anamnestic and dysfunction index in identical twins

Australopithecus anamensis: A finite‐element approach to studying the functional adaptations of extinct hominins

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