英文關鍵字
abscess
agony
amalgam
bad
boss
boy
business
canal
candy
caries
cavity
corporate
decay
dental
dentist
disease
distress
drilling
employee
enamel
ending
erosion
face
filling
gingivitis
gum
guy
hurt
illness
male
nerve
oral
pain
people
periodontal
person
plaque
problem
procedure
pulp
recession
root
student
suffer
surgery
sweets
toothache
trouble
unhealthy
wisdom