“…Immunocytochemical studies using antibodies to enamel proteins have been carrid out at the light microscopic level (SCHONFELD et al, 1977;SLAVKIN et al, 1981) using anti-amelogenin antibodies (GRAVER et al, 1978;SLAVKIN et al, 1982a;CHRISTNER et al, 1983); labeling has been detected over the enamel and ameloblasts. More recently, electron-microscopic immunocytochemistry of amelogenins has been carried out by NANCI et al (1985NANCI et al ( , 1987 and HEROLD et al (1987), and amelogenins have been demonstrated over the secretory pathway of ameloblasts and the enamel at the secretory and maturation stages.…”