Adolescent 1 Adult 1 Age Factors 1 Aged 1 Article 1 Biochemical composition 1 Child 1 Child, Preschool 1 FT-IR spectrometry 1 Female 1 Fourier transform infrared spectroscopy 1 Humans 1 Male 1 Middle Aged 1 Salivary Gland Calculi Salivary stone 1 Sex Factors 1 Sialolith 1 Young Adult 1 adolescent 1 adult 1 age 1 aged 1 biochemical composition 1 calcium 1 calcium phosphate dibasic 1 chemistry 1 child 1 female 1 human 1