Abstract
Anodontia is a rare orofacial complex developmental malformation. In contrast to normal tooth germ with roundhypo echogenic structure arranged in an arch-like manner in alveolar bone, anodontia shows an arch-like hyper echogenic structure without any dental alveoli. Prenatal ultrasound is a reliable method for detecting anodontia inearly gestational age.
Highlights
Hypodontia or tooth agenesis is the most frequent developmental malformation of the orofacial complex [1,2], and its prevalence varies from 0.03% to 10.1% among various populations [3]
Anodontiais defined as the condition of complete absence of teeth either in primary dentition and/or in permanent dentition and is rarer than hypodontia or oligodontia [4,5,6,7,8]
The sagittal sections (Figure 1G) of maxilla and mandible showed two short hyper echogenic structures without dental alveoli highlighted by red arrows
Summary
Hypodontia or tooth agenesis is the most frequent developmental malformation of the orofacial complex [1,2], and its prevalence varies from 0.03% to 10.1% among various populations [3]. Only few studies have evaluated the usefulness and importance of prenatal sonography screening in human tooth germs [9,10,11,12]. A 30-year-old woman (Gestation 3, Parity 1, Abortion 1, Live 1; G3P1A1L1) was referred to our hospital in her 24th week of pregnancy. She had a 2-year-old baby girl with anodontia.
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