changes: a) fusion; b) gemination; c) concrescence; d) dens in dente1. They are rare
developmental aberrations which result in irregular tooth morphology and their clinical
differential diagnosis is often difficult2-4. Due to the close clinical similarity of fusion and
gemination, it is common to refer to these conditions as 'double teeth'5 although the
underlying aetiology is different. Consequently, large or double teeth may be the outcome of …