Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

24 Pedodontics > SSC for Primary Molars > Flashcards

SSC for Primary Molars Flashcards

1
Q

preformed extracoronal restorations are useful in the restoration of what? (2)

A
  1. grossly-broken down teeth
  2. primary molars that have had pulpal therapy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

who gets SCC? (4)

A
  1. hypoplastic primary of permanent teeth
  2. dentitions of kids at high caries risk
  3. special needs patients (rampant caries treated in operating room)
  4. operator error when there is an overextension of proximal box
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

are full case crowns recommended for hypoplastic primary or permanent teeth?

A

NO! FCC not recommended until growth has ceased

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

SCC is also referred to as what?

A

chrome steel crowns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what are SCC made of?

A

alloy containing 18% chromium and 8% nickel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Strength of SCC increases with what

A

manipulation with pliers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what part of SCC alloy reduces corrosion

A

chromium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what part of SCC alloy may elicit an allergic response in some patients? is this more prevalent in males or females?

A

nickel; females

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

are intraoral allergic responses more prevalent than extraoral responses?

A

NO! intraoral responses seem to be more minimal than extraoral responses and are scarce

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

contraindications to SCC (4)

A
  1. esthetics
  2. teeth nearing exfoliation
  3. mechanical problems (space loss and caries beneath the level of the bone)
  4. permanent restoration in the permanent dentition
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

how many sizes of SSC?

A

7 for each primary teeth and permanent molars

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what size SSS is most commonly used? what is the smallest and largest one?

A

most common: 4 and 5
smallest: 1
largest: 7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

who introduced SSC to pediatric dentistry? what used to used before SSC?

A

1950 - Dr. William Humphrey
othodontic bands filled with amalgam were a last resort

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the Hall technique?

A

involves no caries removal
no crown preparation
no use of local anesthetic before placement of SSC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

why do SSC make sense in primary molars

A
  1. inclined planes of cusps less steep; interrelationship of cusps with grooves with opposing teeth LESS precise
  2. broad contacts
  3. definite cervical constriction at CEJ
  4. gingival tissue is paler in color and has preponderance of CT over blood vessels. Gingival margin is rounded vs. knife edge as seen in adult dentition where it meets the tooth
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

when checking occlusion in patient’s with SSC, you only have to do what?

A

have patient bite into centric and examine occlusion visually

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

completed crown should restore contacts where present but also reproduce what?

A

reproduce the broad flat contacts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

bulge is more prominent on the ___ of mandibular molars and ___ of maxillary molars

A

buccal; lingual

19
Q

what is the primary factor in crown retention

A

buccal/lingual bulge undercut

20
Q

T/F: Plaque accumulation & frequency of gingival problems associated with SSC’s in primary teeth seem to be unexceptional.

A

TRUE!

however, some increased inflammation is seen in permanent dentition after puberty

21
Q

describe the different pliers for SCC

A

118 Crimping - flat, one side longer (outside crown) and the other shorter (inside crown)

# 114 Contouring - ball and socket look

22
Q

what are the steps in crown preparation

A
  1. occlusal reduction
  2. proximal reduction
  3. buccal and lingual reduction
  4. beveling
  5. round all sharp line angles and corners
23
Q

all margins should end how

A

feather edge

24
Q

T/F: the SSC ultimately fits ABOVE the feather edge margin and is adapted into the undercut

A

FALSE! it’s going to fit over the feather edge margin

25
Q

do we want ledges?

A

NO! that’s for fixed/perm dentition!

26
Q

after doing local anesthetic and isolation, what is the done next?

A
  1. caries removal
  2. complete pulp therapy if necessary
  3. proceed with crown prep
27
Q

what is occlusal reduction for SSC

A

1-1.5 mm

28
Q

is it okay to have a M-D taper for primary molar SSC?

A

YES! just don’t over taper. this isn’t a fixed prep

29
Q

you must be able to drag your explorer fro m buccal to lingual at the ___ without obstruction

A

level of the feather edge

30
Q

if the buccal or lingual bulges are so prominent that the constricted margin of the crown will not go over the HOC, what should be done

A

the prep should be modified

31
Q

A bevel on both the BUCCAL and LINGUAL at an angle of ___ degrees removes the sharp cusp tips and creates a gentle slope in the occlusal third of the lingual and buccal surfaces.

This allows what? This restores what?

A

30-45

This allows the crown to slip on. This then restores the narrow B-L occlusal table.

32
Q

When trying on the crown, it should seat from ___ to ___

A

lingual to buccal

33
Q

order of completing crown adaptation

A
  1. trim gingival margin
  2. contour
  3. crimp
  4. polish
34
Q

when adaptating the crown:
- mark gingival line with what?
- trim how many mm beneath the mark using what?

A

mark gingival line with sharp instrument
trim 1 mm beneath the mark using a heatless stone

35
Q

margins should be trimmed to lie parallel to what? and consist of what?

A

trimmed to lie parallel with contour of the gingival tissue and consist of a series of curves without sharp angles

36
Q

buccal gingival contour of SECOND primary molar =

A

smile

37
Q

buccal gingival contour of FIRST primary molar =

A

stretched-out S

38
Q

proximal gingival contour of primary molars =

A

frown

39
Q

can you adjust occlusal surface of SSC?

A

NO! you will perf

40
Q

use ___ to smooth jagged edges
use a ___ to remove small scratches and smooth
polish surface of crown to high shine with ___

A

heatless stone
rubber wheel
tripoli and rouge

41
Q

what do you use to cement SSC

A

GI cement

42
Q

what are common SSC crown failures (4)

A
  1. poor tooth prep
  2. poor crown retention/adaptation
  3. occlusal surface wears thru
  4. poor distal margin adaptation allows perm molar to erupt economically under a second primary molar
43
Q

what is the chief goal of full coronal restoration using preformed SSC?

A

replication of normal crown form and function

24 Pedodontics (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions