Abstract:Introduction. Low-strength forces of the soft tissues are closely related to
the stomatognathic system morphology. The muscles of the lips have a
significant influence on the position of the front teeth. The goals of our
research were to: 1. Examine the electromyographic activity of the circular
muscle of the lips in Class I and Class II division 2 patients with incisor
retrusion in the position of physiological rest and centric occlusion at
maximum voluntary muscle contraction; 2. Examine th… Show more
Introduction. Class III malocclusions are characterized by a more prominent
lower jaw compared to the upper jaw and a Class III skeletal and
dentoalveolar relationship according to Angle. In the scientific literature,
there is a small amount of data on the morphological characteristics of
malocclusion in different populations, so there is a justified need to
examine the morphological characteristics of Class III malocclusion in the
population of Vojvodina. The aim of this study was to determine the
morphological characteristics of Class III malocclusions, to compare them
with the average values found in the scientific literature, and to determine
the correlation between the examined parameters of the upper and lower jaw.
Material and Methods. This retrospective study included subjects with Class
III dentoalveolar malocclusion treated at the Dentistry Clinic of Vojvodina
in Novi Sad. The method of random selection was used to select 50 study
models. The data were statistically processed with a significance level of p
< 0.05. Results. The obtained results indicate that the sum of crown width
of the mandibular incisors, the length of the mandibular dental arch, and
the mandibular apical base in subjects with Class III malocclusion are
higher than the average values in the general population. The values of the
posterior width of the maxillary dental arch in the examined group are lower
compared to the average values in the general population. Conclusion.
Subjects with Class III malocclusion present with a greater mandibular
dental arch in regard to the maxillary dental arch.
Introduction. Class III malocclusions are characterized by a more prominent
lower jaw compared to the upper jaw and a Class III skeletal and
dentoalveolar relationship according to Angle. In the scientific literature,
there is a small amount of data on the morphological characteristics of
malocclusion in different populations, so there is a justified need to
examine the morphological characteristics of Class III malocclusion in the
population of Vojvodina. The aim of this study was to determine the
morphological characteristics of Class III malocclusions, to compare them
with the average values found in the scientific literature, and to determine
the correlation between the examined parameters of the upper and lower jaw.
Material and Methods. This retrospective study included subjects with Class
III dentoalveolar malocclusion treated at the Dentistry Clinic of Vojvodina
in Novi Sad. The method of random selection was used to select 50 study
models. The data were statistically processed with a significance level of p
< 0.05. Results. The obtained results indicate that the sum of crown width
of the mandibular incisors, the length of the mandibular dental arch, and
the mandibular apical base in subjects with Class III malocclusion are
higher than the average values in the general population. The values of the
posterior width of the maxillary dental arch in the examined group are lower
compared to the average values in the general population. Conclusion.
Subjects with Class III malocclusion present with a greater mandibular
dental arch in regard to the maxillary dental arch.
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