1
Q
Goals of operating field isloation
A
- Moisture control
- Rectraction
- Harm prevention
2
Q
-Excluding sucular fluid, Saliva, and gingival bleeding from the operating field
A
Moisture Control
3
Q
Recommended technique for moisture control
A
Rubber Dam
4
Q
Provides maximal exposure of the operating site
A
Retraction and access
5
Q
Advantages of Rubber dam isolation
A
- Dry, clean operating field
- Improved access and visibility
- Improved properties of dental materials
- Protection of patient and operator
- Operating efficiency
6
Q
Disadvantages of rubber dam isolation
A
- Time consumption- even though less than 5 minutes
- Patient objection
7
Q
- Teeth haven’t erupted enough
- Tooth is very malpositioned
- Latex allergy
- Some 3rd molars
- Patient struggles with breathing through nose
A
Why you can’t use a rubber dam
8
Q
Play a role in eliminating the discomfort of dental treatment and controlling moisture by reducing salivary flow
A
Local Anesthesia
9
Q
When is use of a rubber dam strongly recommended?
A
When excavating deep caries lesion and risking pulpal exposure to prevent pulpal contamination
10
Q
Rubber dam protects
A
The patient and the operator
11
Q
- Low tear strength
- 5x5 or 6x6 in size; thin, medium, heavy, and extra heavy
- Darker colors preferred for contrast (dull side facing occlusal)
- Thicker dam used for class V lesions with cervical retainer
- Thinner used when contacts are tight
A
Material of dental dam
12
Q
Maintains border of dam in position
A
Frame
13
Q
U-shaped metal frame with small metal projections for securing borders
A
Young holder
14
Q
4 prongs and 2 jaws connected by a bow
A
Retainer
15
Q
Where does the retainer anchor the dam?
A
The most posterior tooth to be isolated
16
Q
Retracts gingival tissue
A
Retainer
17
Q
Where should the retainer contact the tooth
A
In it’s 4 line angles (to prevent rocking and tilting)
18
Q
The jaws of the retainer should not extend beyond
A
The mesial and distal line angles
19
Q
Has anterior and lateral wings
A
Winged retain
20
Q
- Interfere with matrix and wedge placement
- More likely to have gingival trauma
- Harder to get complete seal around anchor tooth
A
If jaw extends beyond mesial and distal line angles
21
Q
Most molar anchor teeth
A
W56
22
Q
Mandibular molar anchor teeth
A
W7
23
Q
Maxillary molar anchor teeth
A
W8e
24
Q
Most premolar anchor teeth
A
W4
25
Small premolar anchor teeth
W2
26
Terminal mandibular molar anchor teeth requiring preparation involving the distal surface
W27
27
Provide extra retraction of rubber dam from operating field and allow attachment to retainer before conveying retainer to anchor tooth1
Winged retainer
28
Can be cut away on retainer if not wanted
Anterior wings
29
How many inches of dental floss should the bow be tied with?
12 inches
30
When is a retainer required for treatment of anterior teeth?
Cervical retainers for class V restorations
31
Precision instrument with rotating metal table with holes of varying sizes and tapered, sharp plunger
Punch
32
Used for placement and removal of retainer from the tooth
Retainer Forceps
33
- Improves patient comfort by reducing direct contract of the rubber material with the skin
- Absorbs any saliva seeping at the corners of the mouth
- Acts as a cushion
Rubber Dam napkin benefits
34
Placed between the rubber dam and the patients skin
Rubber dam napkin
35
Water-soluble applied in area of punched holes helps pass dam septa through proximal contacts;
Lubricant
36
Where should Lubricant be applied?
Both sides of the dam
37
What is sometimes used as a lubricant?
Shaving cream
38
Waxed dental tape (floss) or small piece of rubber dam material or rubber Wedjet
Anchors (other than retainers)
39
When are other anchors used?
When the proximal contact is sufficient to anchor the dam to the tooth
40
How many holes do rubber dams having in cutting table?
5 or 6
41
Where should incisors and the mesial side of canines be isolated from?
1st premolar to 1st premolar
| - Not retainer required
42
Where should canines be isolated from?
1st molar of opposite lateral incisor
43
Should include the lateral incisor on the opposite side of the arch
Posterior teeth
44
1 or 2 teeth distally and anteriorly to opposite lateral incisor
Premolars
45
As far distal as possible to oppsite lateral incisor
Molars
46
How many teeth should be isolated?
Minimum of 3
47
How many teeth do you isolate with endodontics
1
48
Distance from center of 1 tooth to center of other (level of gingival tissue)
Distance between holes
49
1st holes for central incisors
Maxillary teeth
50
1st hole is posterior anchor tooth
Mandibular teeth
51
What is the appropriate placement for the dam and the retainer?
Should be done at the same time
52
Where should the rubber dam be inverted to seal?
Gingival direction
53
What helps to get the interproximal?
Floss
54
Air dry these surfaces and use a blunt instrument
Facial and Lingual
55
- Test and lubricate proximal contacts
- Punch the holes
- Lubricate the dam (2 sides)
- Select the retainer
- Test retainer’s stability and retention- lift occlusally with fingertip under the bow
- Position dam over retainer
- Apply the napkin/ position the napkin
- Attach the frame
- Apply anchor anteriorly (if needed)
- Pass septa through contact without and then with dental tape/floss
- Invert the dam interproximally
- Invert dam faciolingually
- Confirm proper application of dam
- Check for access and visibility
- Insert wedges
Application of rubber dam
56
- Cut the septa
- Remove the retainer
- Remove the dam
- Wipe the lips
- Rinse the mouth and massage the tissue
- Examine the dam
Removal of rubber dam
57
Cervical retainer placement
Use No.212 for Class V
58
Restoration of adjacent proximal surface and cervical restoration of an abutment tooth
Fixed bridge Isolation
59
Can be used to substitute for a retainer; lacks jaw and bow so dam slips sometimes
Matrix band
60
Dictates changes in procedures of rubber dam application
Age of a patient
61
Isolation is usually from the most posterior tooth to the canine on the same side
Isolation for primary teeth
62
How is jaw position different in younger patients?
It should be directed more gingivally
63
Retainer recommended for primary teeth
SS white No. 27
64
Retainer recommended for young permanent teeth
Ivory no. W14
65
- Off-center arch form shredded or torn dam -Inappropriate hole distance sharp tips on No. 212 retainer
- Incorrect hole arch form incorrect technique for cutting septa
- Inappropriate retainer
- Retainer-pinched tissue
Errors in application and removal
66
Isolation alternatives when rubber dam isolation is impractical or impossible
Absorbents
67
Cotton roll and Cellulose Wafers
Absorbents
68
When rubber dam is not being used, these are indicated when the risk of aspirating or swallowing small objects is present
Throat shield
69
Preferred for suctioning water and debris from the mouth
High Volume evacuators
70
1. Cuttings of tooth and restorative material and other debris are removed from the operating site
2. A clean operating field improves access and visibility
3. Dehydration of oral tissues does not occur
4. Precious metals can be more readily salvaged if desired
Combined use of water spray or air-water and a high- volume evacuator during cutting procedures advantages
71
Can often be used in direct procedures involving accessible subgingival areas and in indirect procedures involving gingival margins
Retraction cord
72
Usually moistened with a noncaustic hemostatic agent, may be placed in the gingival sulcus to control sulcular seepage, hemmorage, or both
Retraction cord
73
Establish and maintain suitable mouth opening, relieving the patient's muscles of this task, which also produces fatigue and sometimes pain
Mouth props
Operative: lecture
flashcards
Decks in class (3)
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