lower molar ratio formaldehyde-urea-melamine resin

first molar

left supramaxillary first molar

Mandibular first molar

mandibular permanent first molar

Maxillary first molar

maxillary first molar extraction case

Permanent first molar

The First molar

three-rooted mandibular first molar

The second mesiobuccal canal of maxillary first molar

Permanent three-rooted mandibular first molar

lower temperature and lower turbidity

the lower part of Lower Ganchaigou Formation

protein formula with lower natrium and lower phosphorum

first in first out

first in first out FIFO

first-come-first-served

multi-story masonry building with frame-shear walls on first or first and second floors