ERUPTION OF PREMOLARS SUBSEQUENT TO AUTOTRANSPLANTATION - A LONGITUDINAL RADIOGRAPHIC STUDY

One-hundred-and-eighteen premolars transplanted at a stage with 3/4 to 4/4 root development with an open apical foramen were followed using a standardized clinical and radiographic technique for signs of period ontal ligament healing, root development, and tooth eruption. Root gro wth was unimpeded in 26 per cent, impaired in 55 per cent, and arreste d in 19 per cent. Eruption of transplants occurred at the time of peri odontal and alveolar healing, and before any significant root growth. Furthermore, autotransplanted premolars created growth of the alveolar process along with the eruption process.