Bio-Mechanical Principles of Tooth Preparation
prevention of tooth damage during preparation
adjacent tooth
soft tissue
pulp
causes of injury during preparation
temperature
chemical
bacterial
preservation of tooth structure
guidelines
Consideration affecting future dental health
axial reduction
margin placement
advantages of supragingival margins placement
marginal integrity
marginal adaptation
margin configuration
chamfer
beveled
radial shoulder
sloped shoulder
shoulder with bevel
retention and resistance
retention form
path of insertion
factors affecting retention form
geometry of preparation
taper and retention
surface area
stress concentration
roughness of surface being cemented
material being cemented
type of luting cement
resistance form
tipping path
situations where subgingival margin is unavoidable