Resumen de Scanning electron microscopy and calcification in amelogenesis imperfecta in anterior and posterior human teeth
María del Carmen Sánchez Quevedo, G. Ceballos, J.M. García, I.A. Rodríguez, María Elsa Gómez de Ferraris, Antonio Campos Sánchez
Teeth fragments from members of a famity' clinically and genetically diagnosed as having amelogenesis imperfecta were st udi ed by scanning electron microscopy and X-ray microprobe analysis to establish the morphological patterns and the quantitative concentration of calci um in the e namel of anterior (canine, incisor) and posterior (premolar and molar) teeth. The prism patterns in the enamel of teeth from both regions were parallel or irregularly decussate, with occasional filamentous prisms accompanied by small, irregularly rounded formations. Prism less enamel showed the R- and P-type patterns. Calcium levels in enamel of ame logenesis imperfecta and control teeth differed significantly between anterior and posterior teeth, indicating that the factors that influence normal mineralization in different regions of the dental arch are not altered in the process of amelogenesis imperfecta.
