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Pulp - Linings

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Restorative dentistry Mind Map on Pulp - Linings, created by aahughes on 07/11/2013.
aahughes
Mind Map by aahughes, updated more than 1 year ago
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Created by aahughes about 11 years ago
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Resource summary

Pulp - Linings
  1. Chemical attack, Thermal discomfort, Galvanic effects
    1. CHEMICAL ATTACK
      1. Constituents of certain restorative materials
        1. Acrylic Resin
          1. Acids in certain dentine bonding agents
            1. Residual acid from acidogenic bacteria left behind
            2. THERMAL SHOCK
              1. Polymerisation exothermof some rest materials
                1. Such as resin comp or VLC glass Polyalkenoate
                  1. Light curing unit
                    1. Hot/cold food and drinks
                      1. Cavity prep produces heat (use water as coolant)
                      2. GALVANIC EFFECTS
                        1. rest of dissimilar materials in close proximity
                          1. with inadequate insulation
                            1. Sets up an electrolyte cell (electrolytes-saliva)
                              1. Glavanic pain - kit lat and amalgam/gold opposing amalgam
                              2. CAVITY PREP
                                1. Insults the pulp - results in increased inflam cell infiltrate
                                  1. Prep results in 'smear layer' being left
                                    1. occludes the dentinal tubules with: bacteria,collagen,hydroxapatite
                                    2. IDEAL PULP PROTECTION
                                      1. non toxic/irritant, bacteriostatic
                                        1. Gives good coronal seal
                                          1. Thermal/electrical insulator
                                            1. Strength to withstand rest placement
                                              1. Radiopaque
                                                1. compatible with rest materials
                                                  1. Obtudant (soothing) to the pulp
                                                  2. LINING MATERIALS
                                                    1. Calcium Hydroxide
                                                      1. Zinc oxide eugenol
                                                        1. zinc polycarboxylate
                                                          1. zinc phosphate
                                                            1. glass polyalkenoates
                                                            2. CALCIUM HYDROXIDE
                                                              1. high pH - initially irritates the pulp: reactionary dentine laid down
                                                                1. High pH - bacteriocidal
                                                                  1. Thermal/electrical insulator
                                                                    1. radiopaque and compatible with materials
                                                                      1. Insufficient strength to condensing
                                                                        1. not adhesive - no coronal seal
                                                                        2. ZINC POLYCARBOXYLATE
                                                                          1. Poly F
                                                                            1. High molecular weight reduces penetration to tubules
                                                                              1. only mildly irritant to the pulp
                                                                                1. Contains fluoride - bacteriostatic
                                                                                  1. Good strength for material placement
                                                                                    1. good insulator
                                                                                      1. Contains zinc - radiopaque
                                                                                      2. ZINC OXIDE AND EUGENOL - KALZINOL
                                                                                        1. Slightly irritant to pulp
                                                                                          1. Bacteriocidal
                                                                                            1. Thermal/electrical insualtor
                                                                                              1. eugenol - obtudant
                                                                                                1. not adhesive - no coronal seal
                                                                                                  1. Not compatible with resin comp
                                                                                                  2. ZINC PHOSPHATE
                                                                                                    1. Low pH - highly irritant to pulp
                                                                                                      1. Thermal/electrical insulator
                                                                                                        1. radiopaque, bacteriocidal
                                                                                                          1. Not obtudant
                                                                                                          2. GLASS POLYALKENOATES
                                                                                                            1. Vitrebond - mildly irritant to pulp
                                                                                                              1. contains fluoride
                                                                                                                1. good strength and coronal seal
                                                                                                                  1. compatible with resin
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