Salivary human beta defensin 2 (hbd-2) levels before and after probiotic lactobacillus reuteri administration on caries and caries-free groups = Kadar human beta defensin 2 (hbd-2) saliva sebelum dan setelah pemberian probiotik lactobacillus reuteri pada kelompok karies dan bebas karies - Nanda Akbar Wibisono (FKG Unair, 2013)