id	keyword
mkg-1039	dentin
mkg-1039	resin
mkg-1039	bonding
mkg-1039	material
mkg-1039	surface
mkg-1039	collagen
mkg-1039	adhesion
mkg-1039	humidity
mkg-1039	adhesive
mkg-1039	tooth
mkg-1039	acid
mkg-1039	strength
mkg-1039	composite