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

Abstract

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

Influence of CAD/CAM Material and Preparation Design on the Long-term Fracture Resistance of Endocrowns Restoring Maxillary Premolars

“…Regarding the results of our study, mean fracture load values for all tested groups were within the range of the maximum chewing forces reported in literature in the posterior area (850N) [28].…”

Biomechanical behavior of posterior metal-free cantilever fixed dental prostheses: effect of material and retainer design

“…The mean unilateral bite force in the premolar area is 70% lower than the molar region, with an average of 210-420 N [42]. In another study [51], the mean value of the maximum bite force is around 353 N in men, while in women it is 218 N. In one study [50] discussing the effect of clenching intensity on the biting force in the premolar region, the results showed values from 450 to 660 N. According to our results, these designs cannot be used in case of clenching and bruxism. Occlusal forces rarely reach 45 N during normal chewing, equivalent to the mean of molar bite force [9].…”

Cantilever resin-bonded fixed dental prosthesis to substitute a single premolar: Impact of retainer design and ceramic material after dynamic loading

“…The mean unilateral bite force in the premolar area is 70% lower than that in the molar region, with an average of 210-420 N [40,41]. In another study [19], it was reported that the mean maximum bite force was approximately 353 N in males; meanwhile, it was 218 N in females. The occlusal forces rarely reach 45 N during normal chewing, equivalent to the mean of molar bite force [42], so the specimens evaluated in this study were dynamically loaded at 50 N [6].…”

“…Before the clinical application of any new type of prosthetic restoration or material, its mechanical performance must be determined and evaluated in preclinical tests. If the fracture resistance of the restoration exceeds the expected maximum bite force, typically approximately 500 N in the posterior region [18,19], no damage is expected in clinical use [20]. Compared to other dental ceramics, extremely high fracture resistance and favorable fatigue behavior have been determined for FDPs made from zirconia.…”