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5 Written questions

5 Matching questions

  1. What is the Handpiece grasp used in polishing
  2. What Equipment is needed for polishing
  3. Bristle brushes are made from
  4. What are the Factors that influence rate of abrasion
  5. Intrinsic staining
  1. a 1) Natural or synthetic materials

    2) Remove stains from deep pits and fissures of the enamel surfaces

    3) can cause severe gingival lacerations and must be used with special care

    4) Brushes are not recommended for use on exposed cementum or dentine as these surfaces are soft and are easily grooved
  2. b 1) Suction
    2) Floss (taking the grit out)
    3) Handpiece
    4) Rubber cup
    5) Polishing paste
    6) Gauze
  3. c * The more agent used the greater the degree of abrasion

    * The lighter the pressure the less abrasion

    * The slower the rotation of the cup, the less abrasion
  4. d * An internal discolouration - incorporated into the enamel

    * These stains cannot be removed by scaling or polishing
  5. e 1) Modified pen grasp with the handpiece resting in the v shape area of the hand between the thumb and the index finger

    2) This is important as the weight & balance of the hand piece can cause hand and wrist fatigue & possible trauma

    3) Fulcrum finger rest for stability

5 Multiple choice questions

  1. 1) The teeth should be glossy & reflect light from the mirror uniformly

    2) There should be no evidence of trauma to the gingival margins or any other soft tissues in the mouth
  2. 1) Check the patients medical history for any contraindications

    2) Drape the patient with waterproof bib

    3) Ask patient to remove any dental prosthetic appliance he or she may be wearing

    4) Provide the patient with protective eye wear
    explain the procedure to the patient & answer any questions
  3. 1) Extrinsic
    2) Intrinsic
  4. * Soft webbed

    * Used to clean & polish the smooth surfaces of the teeth

    * Attaches to the reusable prophy angle by either a snap on or Screw on attachment
  5. * Fluoride is better accepted into the enamel

    * Smooth tooth surfaces are easier for the patient to keep clean (no plaque & calculus present)

    * Formation of new deposits is slowed

    * Patients appreciate the smooth feling and clean appearance

5 True/False questions

  1. what are the 2 methods of removing plaque & stain1) Extrinsic
    2) Intrinsic


  2. Abrasive polishing pastes* Soft webbed

    * Used to clean & polish the smooth surfaces of the teeth

    * Attaches to the reusable prophy angle by either a snap on or Screw on attachment


  3. What are the different textures of abrasives:-1) Coarse
    2) Medium
    3) Fine
    4) Extra fine

    * The courser the agent the more abrasive the surface
    even a fine grit agent removes small amounts of the enamel surface

    * Use the abrasive agent that will produce the least amount of abrasion to the tooth surface


  4. Why is it important to floss after polishing1) To remove any abrasive agent or debris that may be lodged in the contact area

    2) A floss threader can be used to pass the floss under any fixed bridgework to gain access to the abutment teeth


  5. How would you clean dental instruments during treatment1) Start on the upper buccal then upper palatal

    2) Then lower buccal then lingual

    * Flavours influence production of saliva
    * Use a thin layer on the teeth