A low‐cost, easy‐to‐build, and portable bite‐force transducer for birds

We describe a cost-effective device that uses an off-the-shelf force transducer to measure patient bite force as a diagnostic aid in determining dental implant size, number of implants, and prosthetic design for restoring partial edentulism. The main advantages of the device are its accuracy, simplicity, modularity, ease of manufacturing, and low cost.

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Bite force and jaw biomechanics in the subterranean rodent Talas tuco-tuco (Ctenomys talarum) (Caviomorpha: Octodontoidea)

Canadian Journal of Zoology ◽

10.1139/z11-007 ◽

2011 ◽

Vol 89 (4) ◽

pp. 334-342 ◽

Cited By ~ 27

Author(s):

Federico Becerra ◽

Alejandra Echeverría ◽

Aldo Iván Vassallo ◽

Adrià Casinos

Keyword(s):

Cross Section ◽

Force Transducer ◽

Bite Force ◽

Adult Males ◽

Subterranean Rodent ◽

Soil Hardness ◽

Ctenomys Talarum ◽

Adductor Muscles ◽

Typical Habitat

The Talas tuco-tuco ( Ctenomys talarum Thomas, 1898) is a South American subterranean rodent that digs using both forelimbs and incisors, the latter being used when animals face hard soils and fibrous roots. In this rodent, the incisors are also used during intermale competition for mates. Bite forces were measured on wild females (n = 21) and males (n = 21) (both adult and young individuals) using a force transducer. Bite force was significantly higher in adult males than in females (32 vs. 27 N, respectively). Bite forces calculated on the physiological cross-section of jaw adductor muscles in dissected specimens were slightly higher than in vivo measurements. Regressions against body mass showed that bite force scaled with positive allometry, with slopes of 0.89 (females) and 0.99 (males). No significant differences were observed, neither in the slope nor in the y intercept of both sexes’ equations; therefore intersexual differences in bite forces observed in adults should mainly be due to size dimorphism. Considering that soil hardness of C. talarum’s typical habitat averages 100 N/cm2, and taking into account incisor’s cross-section, it was assessed that the pressure exerted by jaw adductor muscles at the incisors level is three times higher than that required for soil penetration.

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Low-cost pressure/force transducer with silicon thin film strain gauges

Sensors and Actuators ◽

10.1016/0250-6874(83)85023-9 ◽

1983 ◽

Vol 4 ◽

pp. 183-189 ◽

Cited By ~ 29

Author(s):

W. Germer ◽

W. Tödt

Keyword(s):

Thin Film ◽

Low Cost ◽

Force Transducer ◽

Strain Gauges ◽

Pressure Force ◽

Silicon Thin Film

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A thin bite-force transducer with three-dimensional capabilities reveals a consistent change in bite-force direction during human jaw-muscle endurance tests

Archives of Oral Biology ◽

10.1016/0003-9969(93)90198-u ◽

1993 ◽

Vol 38 (2) ◽

pp. 139-144 ◽

Cited By ~ 24

Author(s):

J.W. Osborn ◽

J. Mao

Keyword(s):

Three Dimensional ◽

Force Transducer ◽

Bite Force ◽

Muscle Endurance ◽

Jaw Muscle ◽

Force Direction ◽

Consistent Change ◽

Endurance Tests

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Masticatory force and electromyographic activity of the mandibular elevators muscles in different rehabilitation treatments.

Brazilian Dental Science ◽

10.14295/bds.2019.v22i3.1759 ◽

2019 ◽

Vol 22 (3) ◽

pp. 387-394

Author(s):

Isabela Silva Gomes Moura ◽

Leonardo Silva Gomes Kamezawa ◽

Eduardo Galera Da Silva ◽

Jose Benedito Oliveira Amorim ◽

Guilherme Schmitt De Andrade ◽

...

Keyword(s):

Statistical Difference ◽

Great Influence ◽

Force Transducer ◽

Bite Force ◽

Control Group ◽

Electromyographic Activity ◽

Muscle Coordination ◽

Rest Position ◽

Human Motor ◽

Masticatory Force

The masticatory function is one of the most complex neuropsychological mechanisms in human motor performance and it depends on several factors, such as bite force, muscle coordination, morphology, and number of teeth in occlusion. Purpose: to evaluate the influence of different rehabilitation treatments such as complete and partial dentures, masticatory forces, and the dynamics of mandibular elevator muscles. Material and Methods: the maximum bite force (force transducer) and electrical activity (superficial electromyography) associated with the masseter and temporal muscles were quantified. These factors were evaluated at rest position and isometric contraction. The data were subjected to descriptive statistics and compared based on the experimental groups, through ANOVA and Tukey’s tests. Results: for bite force, the ANOVA test showed statistical difference between groups and Tukey’s test showed that the force measured in the removable partial dentures group was 44.75% lower than that of the control group, while for complete denture wearers, there was a reduction of 74.4% in bite force in relation to the control group. For electromyographic activity, there was no statistical difference between groups. Pearson’s correlation test (α=5%) showed positive correlation between the variables of bite force and electromyographic activity only for the control group. Conclusion: it was concluded that the loss of dental elements and their replacement with either partial or complete dentures has a great influence on bite force and electromyographic activity of the masseter and temporal muscles.

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