2015, Number 1
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Rev Odotopediatr Latinoam 2015; 5 (1)
Mandibular second premolar agenesis
Sánchez TMA, Castillo GCM
Language: Spanish
References: 45
Page: 61-69
PDF size: 876.79 Kb.
ABSTRACT
Agenesis is the most frequent of all dental abnormalities,
is characterized by the absence of
one or more teeth. Although the etiology has not
been clearly established, genes PAX9 and MSX1
appear to be involved in the occurrence of dental
agenesis. Prevalence of second premolar agenesis
is more frequently associated with female
patients, resulting in dental problems such as
ankylosed deciduous molars, infraocclusion, extrusion
of the opposite tooth, inclination of first
permanent molars, increase of dental gaps, and
reduced development of the alveolar process.
Prior to undertaking any treatment, a reliable
diagnosis should be reached using panoramic
X-rays after the age of 8 years. The aim of this
review is to discuss the diagnostic criteria for
lower premolar agenesis, focusing on its etiology,
prevalence, and the clinical procedures to be
followed.
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