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Cavity liners

Description

First Year Dentistry Mind Map on Cavity liners, created by sanna pathy on 25/01/2020.

Mind Map by sanna pathy, updated more than 1 year ago

	Created by sanna pathy almost 5 years ago

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Resource summary

Cavity liners

Requirements
1. Thermal protection
2. Chemical protection
3. Electrical protection
  1. Galvanic pain (amalgam)
4. Insoluble
5. No interference with filling setting reaction
6. Radiopaque
Calcium hydroxide
1. Composition
  1. 2 pastes - base & catalyst
2. Setting reaction = Chelation
3. Advantages
  1. Alkaline
    1. Anti-microbial
    2. Encourages tertiary dentine deposition
  2. Compatible with composite
4. Disadvantages
  1. Very soluble
  2. Weak
5. Types
  1. Setting
    1. Cavity liner
    2. Direct pulp cap
    3. Indirect pulp cap
      1. Stepwise excavation
  2. Non-setting
    1. Root canal temporisation
ZOE
1. Composition
  1. Zinc oxide
  2. Eugenol
2. Setting reaction = Acid base
3. Advantage
  1. Thermal, chemical & electrical insulator
  2. Anti-microbial
4. Disadvantages
  1. Very soluble
  2. Weak & brittle
  3. Not compatible with composite
5. Uses
  1. Liner in Primary E Pulpotomy
    1. Restored with PFMC or GIC + composite
  2. Temporarising access cavity
    1. Short-term, non-load bearing
      1. Sedanol
        Accelerated
      2. Cavit
      3. Kalzinol
        Resin-modified
    2. Longer-term, load bearing
      1. IRM
        Reinforced with polystyrene
GIC
1. Advantages
  1. Least soluble
  2. Strongest
  3. Compatible with composite
2. Use
  1. Layer on top of sublining
    1. CaOH
      1. Due to solubility & poor strength
    2. ZOE
      1. To prevent interference when restoring with composite
  2. Indirect pulp cap in Primary teeth
EBA

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