英文關鍵字
activity
and
care
caucasian
close
dam
decay
dental
dentistry
enamel
equipment
examination
filling
gums
health
healthcare
hygienist
instrument
jaw
medical
medicine
mirror
molar
orthodontist
packer
person
probe
professional
recovery
restoration
rubber
shape
technology
thread
toothache
treatment
tweezers
work