Quiz questions

• therapeutic benefit of calcium hydroxide to line a cavity?

  stimulates odontoblasts to lay down reparative dentine
• When preparing a mesio-occlusal cavity for an amalgam restoration on an upper premolar tooth, which aspects of cavity design can be created to help provide retention for the restoration?

  dove tail lock
• effect of acid etch on enamel?

  creates micro pores into which bonding resin can flow
• when can self cured GIC restoration be polished?

  after 3 hrs
• burs for polishing composite restorations?

  soft flex discs
• pathogens involved in dental caries?

  • streptococcus mutans
  • sterprococcus sanguis
  • lactobacillus acidophilus
• a disadvantage of amalagam?

  thermal conductor
• Why is the pulpal-axial line angle rounded in an amalgam cavity?

  prevent stress within the amalgam causing possible fracture
• why use a matrix band in class II cavities?

  • correct marginal ridge contour
  • correct contact points with adjacent tooth
  • retaining filling material during condensation
• why should composite be placed layers?

  prevent post op sensitivity
• predisposing factors of developing class III cavities in anterior teeth?

  • ortho appliance
  • crowded teeth
  • poor oh
• last stage of cavity prep?

  cavity toilet
• when can we not place an amalgam?

  • anterior cavities
  • temp dressing
  • fissure sealant
• term for application of calclium hydroxide material pulp exposed by caries or trauma?

  direct pulp cap
• which temp dressing cannot be used with composite?

  • zinc oxide and eugenol
  • alters polymerisation reaction
• caries risk prevention advice before restoration
• oh before restoration
• consider for exam

  • MH, RX - maybe incorrect?, IC - pre op instruction!!!
  • Think outside lab - saliva, pt managment
  • follow evidence based dentistry - ICDAS, DBOH
  • minimally invasive but effective
  • follow up care
• Issues with matrix bands?

  • contact points too high
  • stagnation areas
  • flat proximal contacts
  • matrix as shallowest box
  • no cervical seal = poorly condensed excess amalgam