Resumen de Analysis of the amelocemental junction in premolars of an ecuadorian population

Mayra Vanessa Montesinos Rivera, José Aguilar Maldonado, Jessica Samantha Calle Álvarez, Heydi Monserrath Calle Arévalo

• The aim was to microscopically analyse the prevalence of amelocemental junction types in premolars according to Choquet's classification. The study was observational, descriptive and cross-sectional. The sample included extracted maxillary and mandibular premolars (60 premolars). Random sampling was used to select the teeth. As a result, it was determined that the most prevalent Choquet case was the bis-to-bis case, which represented 35 teeth (58.33%). In 19 teeth we can observe the cement on enamel case and it gives us a percentage of 31.66% of the sections, on the other hand, in 6 teeth we observe the dentine between cement and enamel with a percentage of 10%. And finally, we can observe that no tooth presents the first case of choquet which belongs to enamel over cementum. Concluding that the most predominant relationship between enamel and cement was the case of Choquet Bis a Bis.