EXT

Question 1

Posterior forceps

Answer 1

150S, 151S

Question 2

Contraindicated armamentarium

Answer 2

Cowhorns

Any instrument that could damage the permanent successor

Question 3

Difference in primary teeth

Answer 3

Size
Shape
Physiology
Support

Question 4

Shape differences

Answer 4

Crowns more bulbous

Roots thinner and more splayed

Question 5

Support differences

Answer 5

Bone of the alveolus more elastic

Question 6

Tissue reflection

Answer 6

Detach the gingival tissue
A curette works well for primary teeth
Can use periosteal if needed

Question 7

Elevate

Answer 7

Adequate elevation prevents root fracture
Gentle force expands the bone
Done necessarily need to elevate anterior teeth

Question 8

Anterior primary teeth ext

Answer 8

Mild buccolingual motion

Rotational movement

Question 9

Posterior ext

Answer 9

Buccolingual movement

Question 10

Root Fracture

Answer 10

Aggressive retrieval of root can damage permanent teeth

Question 11

Common sense to root fractures

Answer 11

If visible and easily mobile take it out

Question 12

Permanent teeth may be _______

Answer 12

Damaged or extracted during primary tooth extraction

Question 13

Premature loss of primary teeth may lead to

Answer 13

Undesireable tooth movment which leads to loss of arch length

Question 14

The goal of space maintenance

Answer 14

Is to prevent loss of arch length width and perimeter by mainting the relative position of the existing dentin

Question 15

Space maintenance not usually for

Answer 15

Anterior teeth

Question 16

Tooth distal can drift

Answer 16

Meisal and tooth meisal can drift dismally

Question 17

Space maintenance is indicated

Answer 17

Nearly universally indicated in the posterior

Question 18

Premature loss in the primary

Answer 18

Generally delays eruption of the successor

Question 19

If its getting close to normal exfoliation then premature loss

Answer 19

Accelerates eruption of successor

Question 20

How much alveolar bone over successor

Answer 20

6 months for every mm

Look for 1/2 to 2/3 root development of successor

Question 21

Most space loss occurs within

Answer 21

6 months

Question 22

Space loss is negligee if

Answer 22

The permanent first molars are erupted and in occlusion and primary second molars remain

Space maintence is unnecessary

Question 23

Lingual arch

Answer 23

LLHA in mandibular

TPA/Nance in maxillary

Question 24

Band and loop indications unilateral

Answer 24

Unilateral loss of primary first molar before eruption of permanent first molar or unilateral loss of primary second molar after eruption of permanent first molar

Question 25

Band and loop indications bilateral

Answer 25

Bilateral loss of a primary molar before the eruption of the permanent incisors

Question 26

Band and loop contraindications

Answer 26

Edentulous space is more than one tooth

Question 27

LLHA indication

Answer 27

Bilateral loss after eruption of permanent incisors and permanent first molars in mandible

Question 28

LLHA contraindications

Answer 28

Permanent incisors erupted

Question 29

Nance indications

Answer 29

Bilateral tooth loss in maxilla
Edentulous span more than one tooth in maxilla
After eruption of permanent first molars

Question 30

Nance DO NOT have to wait for

Answer 30

Permanent incisors

Question 31

_____ is cleaner but

Answer 31

TPA is cleaner but some think it allows tooth movements

Question 32

Distal shoe

Answer 32

Loss of primary second molar before eruption of permanent first molar