Change in maximum occlusal force in association with maxillofacial growth.

OBJECTIVE To clarify the correlation between variations in maximum occlusal force and the maxillofacial skeletal pattern in subjects with malocclusion using a compact device. DESIGN Three hundred and fifty patients (150 males 200 females) with malocclusion were included. The male and female subjects were divided into five groups each based on chronological age. The maximum occlusal force was measured with a simplified occlusal force meter. The maxillofacial skeletal pattern was analyzed with lateral cephalograms. On the basis of these data, we studied the correlation between the maximum occlusal force and the maxillofacial skeletal pattern in each age group. RESULTS The maximum occlusal force tended to increase with age, with a tendency to be greater in male than in female subjects. In the male subjects, up to their 20s, the maximum occlusal force continued to increase, while in the female subjects its increase almost terminated in the later teens. In some of the age groups, the maximum occlusal force showed a negative correlation with the mandibular plane angle. CONCLUSIONS Maximum occlusal force tended to increase with age. There was a gender difference in the maximum occlusal force at all age groups, values being larger in the males. In the males, the maximum occlusal force continued to increase until their 20s, while in the females, this increase almost terminated at the age of 17.

[1]  Jan Bourgois,et al.  The relationship between peak height velocity and physical performance in youth soccer players , 2006, Journal of sports sciences.

[2]  T. Uysal,et al.  The association of occlusal factors with masticatory muscle tenderness in 10- to 19-year old Turkish subjects. , 2009, The Angle orthodontist.

[3]  C. Briggs,et al.  The mandibular muscles and their importance in orthodontics: a contemporary review. , 2005, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[4]  T. Kamegai,et al.  A determination of bite force in northern Japanese children. , 2005, European journal of orthodontics.

[5]  M. Bakke,et al.  Molar bite force in relation to occlusion, craniofacial dimensions, and head posture in pre-orthodontic children. , 2005, European journal of orthodontics.

[6]  T. Morimoto,et al.  Sensory components facilitating jaw-closing muscle activities in the rabbit , 2004, Experimental Brain Research.

[7]  S. Steigman,et al.  The effect of functional occlusal forces on orthodontic tooth movement and tissue recovery in rats. , 2002, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[8]  T. van Eijden,et al.  Contribution of Jaw Muscle Size and Craniofacial Morphology to Human Bite Force Magnitude , 1999, Journal of dental research.

[9]  S. Kohno,et al.  Study on the relationship between lateral facial morphology andbite force in orthodontic patients with temporomandibular disorder. , 1997 .

[10]  H. Iwata,et al.  [Relationships between biting force and the morphology of the maxilloface]. , 1995, Nihon eiseigaku zasshi. Japanese journal of hygiene.

[11]  S Braun,et al.  A study of bite force, part 1: Relationship to various physical characteristics. , 1995, The Angle orthodontist.

[12]  W. Hnat,et al.  A study of bite force, part 2: Relationship to various cephalometric measurements. , 1995, The Angle orthodontist.

[13]  M. Bakke,et al.  Unilateral, isometric bite force in 8-68-year-old women and men related to occlusal factors. , 1990, Scandinavian journal of dental research.

[14]  H W Fields,et al.  Occlusal Forces in Normal- and Long-face Children , 1983, Journal of dental research.

[15]  S. Kreiborg,et al.  Craniofacial growth in a case of congenital muscular dystrophy. , 1978, American journal of orthodontics.

[16]  A. Björk,et al.  Facial development and tooth eruption. An implant study at the age of puberty. , 1972, American journal of orthodontics.

[17]  L. Andrews.  The six keys to normal occlusion. , 1972, American journal of orthodontics.

[18]  S. Coben,et al.  The integration of facial skeletal variants , 1955 .