1. Oral prevention includes primary prevention, secondary prevention and tertiary prevention.
A. correct
B. mistakes
Correct answer: a
2.H.T.dean put forward in 1938? Fluorine content in drinking water is positively correlated with mottled enamel teeth and negatively correlated with caries rate? .
A. correct
B. mistakes
Correct answer: a
3, the key projects of dental disease prevention include
A. Appropriate use of fluorine
B. pit and fissure sealing
C. Oral health education program for primary school students
D. National oral health epidemiological survey
Correct answer: proper fluoride # pit and fissure sealing # Oral health education program for primary school students # National oral health epidemiological survey
4. The methods for removing dental plaque are as follows
A. Brush your teeth
B. dental floss
C. mouthwash
D. The other three projects are
Correct answer: All the other three items are.
5. The following statements about oral preventive health care are wrong.
A. Children should be examined every 3-6 months.
B. the elderly are examined once every six months.
C. Adults don't need regular checkups.
D. Women who are going to get pregnant will have a check-up before pregnancy.
Correct answer: Adults don't need regular physical examination.
1. Materials that can be used to directly repair tooth defects are
A. metal crown
B. veneering
C. porcelain crown
D. silver amalgam
Correct answer: amalgam.
2, tooth supporting organizations include
A. cementum
B. alveolar bone
C. ivory
D. gum
Correct answer: cementum # alveolar bone # gum
3. The local predisposing factors of periodontitis include dental calculus, food impaction, trauma, poor prosthesis and abnormal tooth position.
A. correct
B. mistakes
Correct answer: a
4. The following statement about the benefits of orthodontics is incorrect.
A it can clean teeth, but it is not conducive to maintaining periodontal health.
B.it can clear the occlusal trauma.
C. It is conducive to enhancing personal self-confidence
D. it can make digestion better
Correct answer: teeth can be cleaned, but it is not conducive to the maintenance of periodontal health.
5, the basic elements of tooth regeneration tissue engineering include
A. dental pulp
B. Stem cells
C. Scaffold materials
D. cytokines
Correct answer: stem cells # scaffold materials # cytokines
1, national love teeth day ()
A. 20 August
B. August 2 1
C. 20 September
00120 October
Correct answer: September 20th.
2. When the baby is born, there are already () permanent tooth germs in the body.
A. 12
B 16
C.20
Cao 28
Correct answer: 16
3. The best treatment time during pregnancy is 4-6 months.
A. correct
B. mistakes
Correct answer: a
4. How to prevent dental caries?
A. don't chew food for children.
B. Grasp the feeding time reasonably
C. Get rid of the habit of children sleeping with bottles.
D. Don't clean your mouth after feeding your baby.
Correct answer: Don't chew food for your child # Control the feeding time reasonably # Get rid of the habit of sleeping with a bottle in your mouth.
5. Keeping at least 24 functional teeth is an important guarantee for a happy old age.
A. correct
B. mistakes
Correct answer: b
1, deciduous teeth occur in the () week of the embryo.
A.4-6 watts
B.6-7 watts
C.9- 10W
D. 16W
Correct answer: 6-7W
2. Epithelial beads are keratinized substances left over from tooth epithelium in embryonic period, which can fall off without treatment.
A. correct
B. mistakes
Correct answer: a
3. After the new eruption of the lower mastoid incisor, its sharp edge constantly rubs the lingual frenum, resulting in ulcer, which is called Riga-Federer disease.
A. correct
B. mistakes
Correct answer: a
4, deciduous teeth trauma can lead to
A. Pulp congestion
B. Crown Folding
C. embedding dislocation
D. subluxation
Correct answer: pulp congestion # crown fracture # incarcerated dislocation # subluxation
5. Bad oral habits include
A. Finger sucking
B.bite your lips
C. oral breathing
D. spit out your tongue
Correct answer: Finger sucking # Biting lips # Mouth breathing # Tongue sticking out.