Effects of bruxism on the maximum bite force

Abstract

Background/Aim. Bruxism is a parafunctional activity of the masticatory system, which is characterized by clenching or grinding of teeth. The purpose of this study was to determine whether the presence of bruxism has impact on maximum bite force, with particular reference to the potential impact of gender on bite force values. Methods. This study included two groups of subjects: without and with bruxism. The presence of bruxism in the subjects was registered using a specific clinical questionnaire on bruxism and physical examination. The subjects from both groups were submitted to the procedure of measuring the maximum bite pressure and occlusal contact area using a single-sheet pressure-sensitive films (Fuji Prescale MS and HS Film). Maximal bite force was obtained by multiplying maximal bite pressure and occlusal contact area values. Results. The average values of maximal bite force were significantly higher in the subjects with bruxism compared to those without bruxism (p < 0.001). Occlusal contact area was significantly higher in the subjects suffering from bruxism (p < 0.001), while the maximal bite pressure values did not show a significant difference between the studied groups (p > 0.01). Maximal bite force was significantly higher in the males compared to the females in all segments of the research. Conclusion. The presence of bruxism influences the increase in the maximum bite force as shown in this study. Gender is a significant determinant of bite force. Registration of maximum bite force can be used in diagnosing and analysing pathophysiological events during bruxism.

Bruxism

“…Dolazi do promene u veličini kliničke krune ili u najtežim slučajevima do njihovog potpunog gubitka. Kao posledica trošenja zubne supstance javlja se povećanje površine okluzalnih kontakta [1]. Parafunkcionalna aktivnost kod bruksizma dovodi do razvoja sila jakog intenziteta.…”

“…Osobe sa bruksizmom mogu proizvesti mnogo jaču maksimalnu zagrižajnu silu u odnosu na osobe bez bruksizma [1]. Sile koje razvijaju mastikatorni mišići kod bruksizma su mnogo veće od sila koje se razvijaju tokom žvakanja, odnosno gutanja.…”

“…Bruksizam je parafunkcionalna aktivnost mastikatornog sistema, koja se karakteriše stezanjem ili struganjem zubima [1]. Ovo stanje je često praćeno promenom oblika i veličine zuba kao i funkcije stomatognatnog sistema.…”

“…Ovo su dva različita poremećaja i imaju različitu etiopatogenezu. Smatra se da je dnevni bruksizam povezan sa različitim psihološkim faktorima i psihopatološkim simptomima, dok noćni bruksizam predstavlja parasomniju (poremećaj spavanja) centralnog porekla [1,4].…”

A Human Body Pressure Distribution Imaging System Based on Wavelet Analysis and Resistance Tomography

“…The analysis of plantar dynamic pressure distribution and its morphological characteristics can accurately diagnose diabetic foot [ 1 , 2 , 3 , 4 ]. When a dentist diagnoses a patient’s occlusal state, it is necessary to measure the size and distribution of the occlusal force of the upper and lower teeth [ 5 , 6 ]. With the progress of social civilization, the proportion of mental work is increasing.…”