Exam 2 Flashcards
What are the functions of cusps?
Improve chewing, grasping and crushing food, and preserve the periodontal ligament
Where can you find an oblique ridge?
On the maxillary molars of both primary and permanent teeth
What is the union of the triangular ridges called?
The transverse ridge
Sulcus
A long depression or valley in the surface of the tooth between the ridges and cusps
Groove
The junction at the sulcus inclines
Developmental groove
A groove between the primary parts of the crown or root
Supplemental groove
A shallow linear depression that is less distinct that the developmental groove
Function of grooves
To increase chewing efficiency and provide escape route for cusps and food
What is a fissure?
A deep sulcus
What is a pit?
A small pin-point depression located at the junction of the developmental grooves
What teeth do the first and second premolars replace?
The primary first and second molars
