PERBEDAAN PENURUNAN SKOR PLAK ANTARA PENYIKATAN GIGI DENGAN CARA MEMEGANG SIKAT GIGI TEKNIK DISTAL OBLIQUE, SPOON, DAN POWER GRIP (DIFFERENCES OF PLAQUE SCORE REDUCED BETWEEN BRUSHING TEETH BY HOLDING TOOTH BRUSH DISTAL OBLIQUE, SPOON AND POWER GRI - Natamiharja, Lina (Fakultas Kedokteran Gigi USU, 2017)