Sensor for Bilateral Human Bite Force Measurements

Author(s):  
Sven Suppelt ◽  
Romol Chadda ◽  
Niklas Schafer ◽  
Robert Sader ◽  
Mario Kupnik
2014 ◽  
Vol 11 (101) ◽  
pp. 20140908 ◽  
Author(s):  
J. Goyens ◽  
J. Soons ◽  
P. Aerts ◽  
J. Dirckx

Male stag beetles carry large and heavy mandibles that arose through sexual selection over mating rights. Although the mandibles of Cyclommatus metallifer males are used in pugnacious fights, they are surprisingly slender. Our bite force measurements show a muscle force reduction of 18% for tip biting when compared with bites with the teeth located halfway along the mandibles. This suggests a behavioural adaptation to prevent failure. We confirmed this by constructing finite-element (FE) models that mimic both natural bite situations as well as the hypothetical situation of tip biting without muscle force modulation. These models, based on micro-CT images, investigate the material stresses in the mandibles for different combinations of bite location and muscle force. Young's modulus of the cuticle was experimentally determined to be 5.1 GPa with the double indentation method, and the model was validated by digital image correlation on living beetles. FE analysis proves to be a valuable tool in the investigation of the trade-offs of (animal) weapon morphology and usage. Furthermore, the demonstrated bite force modulation in male stag beetles suggests the presence of mechanosensors inside the armature.


1999 ◽  
Vol 78 (1) ◽  
pp. 31-42 ◽  
Author(s):  
M.C. Raadsheer ◽  
T.M.G.J. van Eijden ◽  
F.C. van Ginkel ◽  
B. Prahl-Andersen

2019 ◽  
Vol 101 ◽  
pp. 1-7 ◽  
Author(s):  
Hu Long ◽  
Di Shan ◽  
Renhuan Huang ◽  
He Liu ◽  
Yang Zhou ◽  
...  

2009 ◽  
Vol 36 (11) ◽  
pp. 801-807 ◽  
Author(s):  
S. ROLDÁN ◽  
P. H. BUSCHANG ◽  
J. F. ISAZA SALDARRIAGA ◽  
G. THROCKMORTON

2013 ◽  
Vol 40 (8) ◽  
pp. 563-568 ◽  
Author(s):  
C. M. Serra ◽  
A. E. Manns

2010 ◽  
Vol 04 (02) ◽  
pp. 223-232 ◽  
Author(s):  
Duygu Koc ◽  
Arife Dogan ◽  
Bulent Bek

Maximum voluntary bite force is an indicator of the functional state of the masticatory system and the level of maximum bite force results from the combined action of the jaw elevator muscles modified by jaw biomechanics and reflex mechanisms. The measurement of bite force can provide useful data for the evaluation of jaw muscle function and activity. It is also an adjunctive value in assessing the performance of dentures. Technological advances in signal detection and processing have improved the quality of the information extracted from bite force measurements. However, these measurements are difficult and the reliability of the result depends on a number of factors, such as presence of pain and temporomandibular disorders, gender, age, cranio-facial morphology, and occlusal factors. In addition to these physiological factors, recording devices and techniques are important factors in bite force measurement. Therefore, one should be careful when comparing the bite force values reported in the research. (Eur J Dent 2010;4:223-232)


2006 ◽  
Vol 35 (7) ◽  
pp. 663-667 ◽  
Author(s):  
V.A. Bousdras ◽  
J.L. Cunningham ◽  
M. Ferguson-Pell ◽  
M.A. Bamber ◽  
S. Sindet-Pedersen ◽  
...  

Author(s):  
Soheb Rafique ◽  
Devika Rakesh ◽  
Sanjeev K. Uppal ◽  
Ramneesh Garg ◽  
Rajinder K. Mittal ◽  
...  

Background: Fracture of mandible is a common condition which is increasing in incidence in the trauma centers due to increasing motor vehicles and failure to abide by traffic regulations. Patients undergo surgical open reduction and internal fixation where post-operative occlusion and normal masticatory functions are targeted. Bite force can be taken as a guide of normal masticatory function of an individual which is dependent upon craniomandibular biomechanics. The aim of the study was to analyse bite force measurements post-operatively in patients who underwent open reduction and internal fixation for mandible fractures at different sites.Methods: Molar bite force was recorded in 31 post-operative patients who underwent open surgical procedure for fracture mandible in the department of plastic surgery from January 2018 to June 2019 by a pre-scale bite force recorder-Nupai bite force prescale system (FujiTM). Various parameters were recorded pre and post-operatively including age, gender, history, comorbidities, requirement of MMF, site and number of fractures and age of injury. Bite force were compared and improvement of bite force every 2 weeks was noted and analyzed upto 6 weeks postoperatively.Results: Bite force improvement was seen in all types of mandible fractures irrespective of the site and type of fractures over a period of 6 weeks post-operatively. This improvement was however not statistically significant. Decreased time interval form injury to surgery resulted in improved bite force measurements though not statistically significant.Conclusions: Although objective improvement in bite force could be demonstrated but extensive study involving more subjects and more patient variables would have statistical significance.


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