ⓘ Dens evaginatus
Dens evaginatus is a rare odontogenic developmental anomaly that is found in teeth where the outer surface appears to form an extra bump or cusp.
Premolars are more likely to be affected than any other tooth. This can occur unilaterally or bilaterally. Dens evaginatus de usually occurs bilaterally and symmetrically. This can be seen more often in Asians.
The prevalence of de ranging from 0.06% to 7.7% depending on race. It is more common in men than in women, often in the lower jaw than the upper jaw teeth. Patients with Ellis-van Creveld syndrome, incontinentia pigmentiachromians, pestilence syndrome Rubinstein-Taybi syndrome and the syndrome of the Sturge Weber at a higher risk of the presence of de.