Hubungan rasa nyeri dengan ekspresi Calcitonin Gene Related Peptide (CGRP) pada perawatan ortodonti tahap aligning awal menggunakan sistem bracket preadjusted edgewise dan Passive Self Ligating = Title correlation between perception of pain and Calcitonin Gene-Related Peptide (CGRP) expression during initial tooth alignment using a self-ligating or preadjusted bracket system.