*3.3.1 Prevalence*

CLP patients present with a higher prevalence of supernumeraries, more commonly found at the lateral incisor region adjacent to the cleft [17, 44, 46, 50, 54, 77–79]. The prevalence of a supernumerary lateral incisor in CLP patients ranged from 5.1% – 22.1% [47, 50, 52, 61, 62].

In contrast, a lower prevalence of supernumeraries is found in normal children, ranging from 0.46–3.4% across all nationalities [80–82]. In a local study carried out on 408 normal Singaporean Chinese patients, the prevalence of hyperdontia was found to be 7.1%, with most of the supernumeraries found in the premaxilla area [83].
