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Dentures, Acrylic resins, & Preventive materials, Dyandra Wirahana…

- - - - veneers
    - - Protective eye wear
      - mouth guards
    - - Maxillofacial Prosthesis
      - Acrylic resin temporary crown
      - Acrylic Denture
      - custom tray
  - - - Low strength for easy abrasion
    - - the surface change when pressure is applied
    - - Low Elastic modulus: Flexible
      - Modulus elasticity: 2.4 GPa
      - Low Tensile Strength: 60 MPa
      - Flexural strength = 2000-2500 Mpa
    - - 76.0 – 80 ×10−6/°C
    - - 0,0006 °C/cm
    - - softens at 125 C, and can be molded as a thermoplastic material
      - Depolymerize and forms methylmethacrylate monomer above 125 C
      - Stable to heat < 125 C
      - 90% of the polymer will have depolymerized at 450 C
    - - Micro-cracks appearing in denture surface imparting hazy/foggy appearance
    - - Tendency to absorbs water by ambition.
    - - air bubbles that may disrupt the form of the acrylic resin.
  - - - Pigments and Dyes
        
        alt of calcium or iron or organic dyes
      - Dyed Synthetic fibre
        
        nylon or acrylic
      - Initiator
        
        0.5% to 1.5% of benzoyl peroxide or diisobutylazonitrile
      - Opacifier
        
        zinc or titanium oxides
      - Acrylic polymer
        
        polymethyl methacrylate
      - Plasticizer
        
        dibutyl phthalate
      - Inorganic particles
        
        glass fibres and alumina (sapphire) whiskers
      - Polyethylene-woven yarn and polyaramid fabric
      - Dyed organic fibres
    - - Accelerator
        
        N,N-dimethyl-para-toluidine, and N,N-dihydroxyethyl-para-toluidine
      - Plasticizer
        
        Dibutyl phthalate
      - Inhibitor
        
        0.003% to 0.1% of hydroquinone
      - Butyl or octyl methacrylate to methyl methacrylate
      - Monomer
        
        methyl methacrylate
      - Cross-linking agent - 2% to 14% of glycol dimethacrylate
- - - - anti-caries, antimicrobial
      - Remove stain
    - - Used for remineralisation of decalcified enamel and incipient caries.
    - - used to inhibit bacterial growth. enhance the removal of debris from the tooth surface.
    - - Indicated for preventing and arresting incipient lesions.
      - Available as clear or white, filled or unfilled, containing Fluoride or not.
    - - Mouthguards cover your teeth to protect teeth and gums
  - - - To eliminate, reduce, or alter he effect of microorganisms in the oral cavity and elevated levels of pro-inflammatory mediators.
    - - Cetylpyridinium Chloride (CPC)
      - Essential Oils
      - Chlorhexidine(CHX)
      - Stannous Fluoride (SnF2)
      - Triclosan
  - - - when permanent teeth in children/adolescent are at risk of caries
      - when permanent teeth in adults is at risk of caries
      - when primary teeth in children are at risk of caries
      - Incipient carious lesions (non-cavitated) of pits and fissures in children, adolescents, and adults
    - - if the risk are low we do not need the method
- - - - Contain all teeth
    - - Contain only the missing teeth
  - - - Talking Clearly
        
        the tooth function as a tools of making sounds, the shape of the denture affect the process of making sound
      - Smiling Attraction
        
        teeth also serve an aesthetic purpose which our smile can be noticed. to bring a good impression to others denture might help complete the missing teeth.
      - Chew Food
        
        it mut work as a normal tooth to help the user chew food, it must be securely fitted, strong, and sharp to deliver bite force
      - Support the jaw
        
        teeth also serve as a facial structure especially the jaw.
    - - to prevent shifting of teeth and also support facial structure