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dental anatomy test
chapter 3
Term | Definition |
---|---|
axial surfaces | long axis of the tooth which is an imaginary line that passes through the centre of the tooth vertically |
4 axial surfaces | facial/vestibular (labial or buccal), lingual, mesial and distal |
non-axial surfaces | incisal edge of anterior teeth (centrals + laterals) & occlusal surface of posterior teeth (premolars + molars) |
why are they non-axial? | these surfaces run perpendicular (horizontally) to the long axis of the tooth |
what is a line angle | a line that is created by two different surfaces that come together |