Maximal bite force and its associations with spinal posture and craniofacial morphology in young adults

Abstract

Maximal bite force (MBF) and its associations with craniofacial morphology and spinal posture were studied in a group of young adults (46 M and 38 F) aged 21 to 23 years. MBF was recorded in molar and incisal regions. Sagittal spinal posture was measured by spinal pantography and trunk asymmetry at thoracic and lumbar levels by a forward-bending test. Craniofacial variables and posture of the cervical spine were examined from lateral cephalograms taken in a natural head position. No statistically significant correlations existed between MBF and spinal posture, but significant correlations did exist between MBF and craniofacial variables, especially in women.

Facial dimensions, bite force and masticatory muscle thickness in preschool children with functional posterior crossbite

“…2 Early studies have shown that bite force magnitude was related to vertical jaw relationship, face height, and mandibular inclination, form and length. 10,22,23 In the present study, the MCB group showed a significant negative correlation between bite force and AFH/FWB ratio, i.e., children with longer faces tend to present lower bite forces. This agrees with adults 23 and older children 2,10,11,22 findings, as strong masticatory muscle action was associated with a tendency to parallelism between the jaws bases, short lower face height, and small gonial angle, that is, good conditions for masticatory muscle strength development.…”

The relationship between facial skeleton morphology and bite force in people with a normal relation of the bases of jaws and skull

“…with an increasing ms-NL bite force also increased [1,12]; those results, however, were described by Braun et al [1] as "unexpected". Also Ingervall and Minder [4], as well as Kovero et al [8] found a statistically significant, positive correlation between ms-NL and bite force, but only in female patients. In the male group, however, the correlation between the variables, although not statistically significant, was negative [8].…”

“…Also Ingervall and Minder [4], as well as Kovero et al [8] found a statistically significant, positive correlation between ms-NL and bite force, but only in female patients. In the male group, however, the correlation between the variables, although not statistically significant, was negative [8]. The means for ms-NL of the girls examined by Ingervall and Minder [4] were 19.4 ± ± 2.1 mm.…”

“…Only a few studies, however, have attempted to investigate in detail the relationship between bite force and facial morphology described by a cephalometric analysis [4,8,9,12,15]. It must be noted that the fact of researchers using different methods and standards of cephalometric interpretation creates additional difficulties in analysing and comparing results.…”

Occlusion and posture: facts and beliefs

“…These results contradict those of another published article that avers that there is no correlation between biting force and cephalic posture 92 . Kovero et al also did not find any significant statistical correlation between maximal biting force and cervical posture 49 ;…”