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Variani, R.; Obi, A. L. .; Manu, A. A. .; Sidabutar, M. .; Bengu, R. . Overview of the Performed Treatment Index (PTI), Knowledge and Attitude towards Dental Cavity Treatment in Class IV and V Students at Oeletsala Elementary School, Kupang Regency: Gambaran Angka Performed Treatment Index (PTI), Pengetahuan Dan Sikap Terhadap Perawatan Gigi Berlubang Pada Murid Kelas IV Dan V Di SD Oeletsala Kabupaten Kupang. Ahmar Metastasis Health J. 2022, 2, 16-21.