| Summary: | Free Way Space is the space between the occlusal surface of the upper jaw
and lower jaw in centric occlusion and rest position. Free Way Space is influenced
by many factors, including the masticatory muscles. Children who lived in the
highlands and lowlands have different eating habits. This was because of different
ecological types, which required different physical activity and energy. Boys and
girls also have different physical activity.The purpose of this research was to
determine the difference of the Free Way Space between 7-8 years old boys and
girls who lived in the highlands and lowlands.
The research was an analytical epidemiological cross-sectional study design.
The number of subjects were 120 children. Subjects were children 7-8 year old
school children who lived in the Cangkringan district and Wirobrajan district,
Yogyakarta. Subjects were divided into 2 groups : group I (subjects who attended
school and lived in the Cangkringan district) and group II (subjects who attended
school and lived in the Wirobrajan district). Each group was divided by sex and
age with the same frequency. Then measure the distance between the subnation
point and gnation point when the child in centric position and the rest position.
The difference of Free Way Space in the two groups were compared using
Anova Univariat parametric test. The results showed significant (p<0.05)
difference based on residence, gender, and age. The Free Way Space in children
who lived in the highlands are larger than the children who lived in the lowlands,
the boys are larger than the girls, and the 8 years old children are larger than 7
years old children.
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