Abstract
Congenital absence of maxillary permanent canines is an extremely rare condition, which may appear as part of a syndrome or as a nonsyndromic form. Nonsyndromic canine agenesis combined with other types of tooth agenesis has occasionally been described in the literature but isolated cases are rarely observed. This report presents an isolated case of maxillary permanent canine agenesis in a healthy 18-year-old female patient and a literature review on the prevalence, etiology, and differential diagnosis of the condition.
Highlights
Tooth agenesis or hypodontia is one of the most common anomalies of the human dentition, which is characterized by the developmental absence of one or more teeth
The permanent canines are often reported as missing though being with a low frequency [3]
Congenital absence of permanent canines was occasionally reported in cases of nonsyndromic patients with advanced hypodontia or oligodontia [4,5,6,7] but isolated cases of maxillary permanent canine agenesis are rare [8,9,10]
Summary
Tooth agenesis or hypodontia is one of the most common anomalies of the human dentition, which is characterized by the developmental absence of one or more teeth. Congenital absence of permanent canines was occasionally reported in cases of nonsyndromic patients with advanced hypodontia or oligodontia [4,5,6,7] but isolated cases of maxillary permanent canine agenesis are rare [8,9,10]. Previous studies showed that the prevalence of the maxillary permanent canine agenesis varies between 0.07 and 0.13% [11]. This case report presents a unilateral maxillary permanent canine agenesis. A literature review on the prevalence, etiology, and diagnosis of the condition was carried out
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