Rubber Dam Flashcards
What are the advantages of rubber dam?
- Safety
- Contains RCT irrigants and bleaching agents
- Control tongue
- Protect soft tissues from injury
- Prevents inhalation and swallowing of instruments
What effect can etch have on gingivae?
Ulceration
What are the moisture control advantages of rubber dam?
- Physical barrier to salivary contamination of the root canal system
- Avoids moisture contamination when using bonding resins and adhesive techniques
- Controls movement of tongue and cheeks
- Prevents patients from swallowing and closing their mouths.
What are the patient management advantages of rubber dam?
- Avoids need for continued rinsing of mouth
- Improves access and vision of operating site
- Provides gingival retraction
- Reduces operating time
How does rubber dam improve vision of operating site?
Dark rubber dam provides good contrast with white tooth structure
Useful when working at the gingival margin
What are the disadvantages of rubber dam?
- Gingival damage from clamps
- Fracture of porcelain restorations
- Fracture of heavily restored teeth
- Fracture or loss of restoration
- Inhalation or swallowing of clamps
- Contact allergy to rubber dam if it contains latex.
How large is rubber dam?
15x15cm
What are the range of thicknesses
0.15-0/35mm
(Heavier grades of rubber dam retract soft tissues better)
What is the shelf life of rubber dam?
3 years
Size of holes punched?
0.5mm and 2.5mm
What is the difference between a bland and retentive clamp?
Bland clamps grasp tooth above the gingival margin
Retentive clamps grasp tooth below gingival margin
What are the features of a stokes clamp forcep?
Flat are with one curve at end
What are the features of an ivory clamp?
Flattened area but S shaped end of the clamp
