Background: Regional odontodysplasia is a rare abnormality of unknown aetiology affecting dental tissues derived from the mesoderm and ectoderm. It occurs mostly in women, with no racial predilection. It is often located in the upper jaw and tends to affect a single quadrant. It can involve the temporary as well as the permanent dentition. The aetiology is unknown; however, local, systemic or genetic factors may be involved. The affected teeth are clinically hypoplastic and hypocalcified, radiographically demonstrating the appearance of “ghost teeth”.
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