D. P, A. M L, Anupama, J. V. Raja, and Diksha, “AGE ESTIMATION BY MEASURING OPEN APICES OF LOWER ERUPTED AND NON-ERUPTED PERMANENT TEETH AMONG 5-15 YEARS OLD - A DIGITAL ORTHOPANTOMOGRAPH STUDY”, Med. res. chronicles, vol. 2, no. 5, pp. 633-643, Oct. 2015.