“…Spectral parameters have been widely used in biological studies to elucidate the molecular differences within and between various tissues. By analyzing band area or band intensity or height values, information about the relative concentration of the respective biomolecules in bone and teeth can be obtained (Alebrahim, Krafft, Sekhaneh, Sigusch, & Popp, 2014;Boskey & Camacho, 2007;Boskey, DiCarlo, Paschalis, West, & Mendelsohn, 2005;Haman Bayari et al, 2020;Rey, Collins, Goehl, Dickson, & Glimcher, 1989;Shemesh, 1990;Termine & Posner, 1966;Zhan, Zhang, Guo, & Xie, 2013).…”