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Calcium Hydroxide (Properties (Physical (does not have mechanical…

- - - - light curing : close to 12, most mechanical, less calcium
        for crown
      - paste- paste: 9-12, so-so mechanical, so-so calcium
        in chamber
      - pure: 12, less mechanical ,high calcium
        best to kill bacteria, in root canal
    - - paste- paste: 0.5-8%
      - pure: 80-90%
      - light curing: 1%
  - - - layer after apply CH
        (outer to inner)
        
        CH
        
        necrotic tissue
        
        thrombosis layer
        
        defensive dentine (tertiary dentine)
        
        healthy tissue
      - undesirable effect
        
        calcification in pulp tissue --> root treatment difficulty
        
        root reabsorption
- - - - no pure due to poor mechanical properties
        --> use paste- paste/ light curing
        => progressive dissolution (empty area in old filling)
    - - pure/ paste- paste
    - - in case that exposure less than 1.5mm, no bleeding
        better success in immature teeth
- - - - base paste and catalyst paste (acid)
        => acid- base reaction (1:1)
        
        agents --> to harden
        
        antibiotics
        
        calcium hydroxide
        
        x-ray marker
      - accelerated by humidity and room temperature
      - mixing time: 10 sec
      - working time: 3-5 mins
      - setting time: 1-2 mins (rapid)
      - direct pulp capping
        indirect pulp capping
        cavity liner
    - - low CH bioavailability
      - photo polymerizing for 20 sec
      - cavity liner,
        "octocanal kit" for temporary root filling in mature teeth