Dental arch dimensions in the mixed dentition: a study of Brazilian children from 9 to 12 years of age
J. appl. oral sci
;
19(2): 169-174, May-Apr. 2011. ilus, tab
Article
in English
| LILACS
| ID: lil-586037
ABSTRACT
OBJECTIVE:
This study evaluated dental arch dimensional changes of Brazilian children. MATERIAL ANDMETHODS:
Dental casts were taken from 66 children (29 males; 37 females) with normal occlusion selected among 1,687 students from public and private schools aged 9, 10, 11 and 12 years, according to the following criteria Class I canine and molar relationships; well-aligned upper and lower dental arches; mixed dentition; good facial symmetry; no previous orthodontic treatment. Dental arch dimensions were taken by one examiner using the Korkhaus' compass and a digital pachymeter. ANOVA test was applied to compare the arch dimensions at the different ages and the t-test was used to compare the arch dimensions of male and female subjects. Arch forms were compared by means of chi-square tests.RESULTS:
Only the maxillary anterior segment length showed a statistically signifcant increase from 10 to 12 years of age. Males had a signifcantly larger maxillary depth than females at the age range evaluated. The predominant dental arch form found was elliptical.CONCLUSIONS:
In the studied age range, anterior maxillary length increased from 10 to 12 years of age, males had larger maxillary depth than females and the predominant arch form was elliptical.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Dental Arch
/
Odontometry
Limits:
Child
/
Female
/
Humans
/
Male
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
J. appl. oral sci
Journal subject:
Dentistry
Year:
2011
Type:
Article
Affiliation country:
Brazil
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