“…Based on our results, CEJ-BC distance did not exceed 4 mm in any of the reported teeth, with premolars being the only teeth presenting with this maximum distance. These findings are in agreement with other studies that reported similar CEJ-BC mean values on central incisors, lateral incisors, canines and premolars (AlTarawneh, AlHadidi, Hamdan, Shaqman, & Habib, 2018;El Nahass & Naiem, 2015;Januário et al, 2011;Wang et al, 2014;Zekry, Wang, Chau, & Lang, 2014). Furthermore, our finding that the CEJ-BC distance seems to increase with increasing age is also consistent with previous reports (Cook et al, 2011;Dos Santos, Oliveira Reis Durao, de Campos Felino, & Casaleiro Lobo de Faria de Almeida, 2019;Zekry et al, 2014) and represents the physiologic bone loss that takes place with ageing.…”