A new device for measuring mastication force (Gnathodynamometer)

Ortug, Gursel

doi:10.1016/s0940-9602(02)80063-2

Cited by 41 publications

(31 citation statements)

References 6 publications

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“…The maximum bite force is measured with various types of force-measurement devices, called gnathodynamometers, the first of which was developed in 1681 by Bordelli cited by Ortuğ, while in 1893 Black constructed his own force-measurement device and did research on the forces acting in the mouth (9). In the 20s of the 20 th century Haber, cited by Filchev, designed a gnathodynamometer for determining the normal threshold of resistance of the periodontium (3).…”

Section: Introductionmentioning

confidence: 99%

Measurement of the Maximum Bite Force in the Natural Dentition with a Gnathodynamometer

Apostolov¹,

Chakalov²,

Drajev³

2014

MedInform

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The aim of the present study is to measure the maximum bite force (MBF) in the natural dentition with the help of a force-measurement device -gnathodynamometer, designed and constructed specially for the purpose of the study. Materials and methods: 80 students from FDM-Sofia, aged between 20 and 32, were tested. Each student was given instructions about the study and its method, and the tests were carried out thereafter. The tip of the force-measuring tensometric module of the gnathodynamometer was first placed in the area of the frontal teeth and the patient was asked to bite firmly, until the first signs of pain were felt. Afterwards the device was placed in the area of the first left molars and the first right molars. The whole study was repeated three times. The results were recorded in a specially designed table. Results: The clinical study indicated that the maximum bite force is significantly greater in male students as compared to female students. This phenomenon was observed during measurements in the three regions -frontal, left molars and right molars. It was found that in both genders the maximum bite force is greater in the distal regions as compared to the maximum bite force in the frontal region. Conclusion: Our research proves that the maximum bite force in male subjects is greater than that in female subjects. The values in the area of the left and right molars are almost equal, while the values in the molar regions are about 3 times greater than those in the frontal region

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Section: Introductionmentioning

confidence: 99%

Measurement of the Maximum Bite Force in the Natural Dentition with a Gnathodynamometer

Apostolov¹,

Chakalov²,

Drajev³

2014

MedInform

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“…In 1681, Borelli conducted the first studies on mastication forces and designed a gnathodynamometer [11]. Then, several researchers over the years have studied this subject, and various devices have been designed and developed for the same purpose [11,12]. These include the simple lever/spring, combined lever and spring or lever, spring, manometer and nowadays electronic or disposable devices [13,14].…”

Section: Introductionmentioning

confidence: 99%

Efficacy of denture adhesives in maxillary dentures using gnathodynamometry: a comparative study

Polyzois

Lagouvardos

Frangou³

et al. 2011

Odontology

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The purpose of this study was to investigate the effect of four commercially available denture adhesives on the incisal and premolar dislodgement forces of maxillary complete dentures by using an electronic and disposable gnathodynamometer and compare the measured incisal forces for differences. This study was conducted with 12 complete maxillary denture wearers. Four commercially available denture adhesives Super Corega(®), Corega Ultra(®), Super Corega Powder(®) and Fittydent Cationic(®) were investigated. Testing protocol and sequence included baseline measurements without adhesives (control) for previous and new dentures and then replications of measurements with the four adhesives. Maximum dislodgement forces were recorded in two sites between central incisors and the left 2nd premolars by using an electronic and disposable gnathodynamometer. To estimate the effect of the different adhesives on the dislodgement forces, data were analyzed by a 2- and 3-way ANOVA, while for estimating the agreement of the two devices a Bland-Altman and Mountain plots were used. ANOVAs indicated significant differences between adhesives (p < 0.05), denture types (p < 0.05) and biting sites (p < 0.05) with both devices. Bland-Altman plot and Mountain plots indicated a poor agreement of the two devices. It was concluded that denture adhesives increase the denture dislodgement forces, but with differences among them. The two devices do not highly agree with each other, but each one alone is useful in estimating dislodgement forces in clinical practice and research.

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“…[2] The bite force (BF) is a useful indicator of the functional state of the masticatory system and the loading of the implant .It used to evaluate the therapeutic effect of prosthetic device and to provide reference values for studies on the biomechanics of prosthetic devices. [15] Literature review revealed several biting force devices, mentioned that the most commonly technique was strain gages. They offer many advantages over other techniques such as simple installation that can be carried out with little training, available circuitry to measure its linear output over a large range of forces, and because it is easy anticipate the magnitude of the gage output with little well defined calculations.…”

Section: Introductionmentioning

confidence: 99%

A novel computational analysis of computer milled zirconium implant abutment head design under reinforced implant supported overdenture

Shinawi

Al-Dharrab

Nassef

et al. 2013

2013 International Conference on Computer Medical Applications (ICCMA)

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During the past few decades, unalloyed titanium has been extensively used as a material of dental implant-supported restorations but it cause gingival discoloration and unnatural appearance of the surrounding soft tissue. Currently, yttrium oxide partially-stabilized zirconia (Y-TZP) is a ceramic of special interest because of its superior mechanical properties. This study was carried out with four one piece zirconium implants embedded on a standard acrylic resin mandibular edentulous model, the abutment of zirconium implant was classified into two designs and then laboratory test was applied with proposed biting force ( sensor (BS) and a bidirectional transmitreceive module. Our study concluded that the use of one piece Zirconium implant with box or parallel shape abutment head in implant supported over-denture without a need of cement, screws or plastics or metal housing for attachment in other types of implant had a superior results and easier maintenance and repair of the prosthesis if any complications occur.

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A new device for measuring mastication force (Gnathodynamometer)

Cited by 41 publications

References 6 publications

Measurement of the Maximum Bite Force in the Natural Dentition with a Gnathodynamometer

Measurement of the Maximum Bite Force in the Natural Dentition with a Gnathodynamometer

Efficacy of denture adhesives in maxillary dentures using gnathodynamometry: a comparative study

A novel computational analysis of computer milled zirconium implant abutment head design under reinforced implant supported overdenture

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