Vojnosanitetski pregled 2013 Volume 70, Issue 7, Pages: 645-652
https://doi.org/10.2298/VSP110224042S
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Cephalometric assessment of maxillary length in Serbian children with skeletal class III
Stojanović Zdenka (Military Medical Academy, Clinic for Dentistry, Belgrade)
Nikolić Predrag (School of Dental Medicine, Clinic for Jaw Orthopedics, Belgrade)
Nikodijević Angelina (School of Dental Medicine, Clinic for Jaw Orthopedics, Belgrade)
Milić Jasmina (School of Dental Medicine, Clinic for Jaw Orthopedics, Pančevo)
Stojanović Branislav (Military Health Department, Ministry of Defence, Belgrade)
Background/Aim. Malocclusion of skeletal class III is a complex irregularity
of sagittal inter-jaw relationship, which is due to irregularities of
sagittal position of one or both of the jaw bones, which is often associated
with disproportionate ratio of their length. The aim of this study was to
determine whether the length of the jaw of children with skeletal class III
in the period of mixed dentition was changed. Methods. Fifty children with
skeletal class III and the same number of those with skeletal class I, of
both sexes, have been selected on the basis of cephalometric analysis of
profile tele-x-ray of the head. All the children aged 6-12 had mixed
dentition, and were divided according to sex and age into three subgroups
within each group. The length of maxilla, mandible and cranial base were
measured. Proportions among the lengths measured within each group were found
and difference significance in the measured lengths and their proportions
among groups and subgroups were evaluated. Results. The children with
skeletal class III, compared with the findings in the control group, had
significantly lower values of maxillary length, total maxillary length, as
well as lower values of their lengths in proportion to lengths of the front
or the total length of cranial base and in proportion to mandibular lengths
(p < 0.05). Among the patients of different sexes, both in the test and the
control group, a significant difference in the values of the measured lengths
was found. Conclusion. The children with skeletal class III have
significantly shorter maxilla than those with skeletal class I.
Keywords: cephlometry, maxilla, child, Serbia, malocclusion, angle class III