CEMENTUM
Cementum meets enamel in what 3 ways? Bonus: What are the percentages?
Overlap - 60%, Meet - 30%, Gap - 10%
How many pulps are present in a human adult permanent dentition, if all teeth are present?
32.
T/F: The fifth cranial nerve is the trochlear nerve
False. Fifth cranial nerve is Trigeminal Nerve
Unmineralized cementum is called what?
Cementoid.
T/F: The cells found in the highest abundance in the pulp are odontoblasts.
False - Fibroblasts are the most abundant cell within the pulp.
What are the 3 stages of tooth development?
Bud, Cap, Bell.
T/F: Intermediate cementum must be fully formed before secondary cementum can start to be deposited.
True
Odontoblasts are present where within the pulp?
Against the predentin that surrounds the pulp chamber.
If a tooth is not successional, it is what?
Accessional.
Does hypercementosis occur in early development or later in life?
later in life
Name 3 functions of pulp. Bonus if you can get all 6.
Nutritive, Reparative, Vitality, Inductive, Protective, Formative.
T/F: Interradicular fibers are only found on premolars.
False - they are found in teeth with furcations.
What is the percentage of inorganic hydroxyapatite in Cementum?
45-50% inorganic hydroxyapatite
Name the 3 pain theories related to pulp. Bonus: Which is the most widely accepted?
Direct innervation, Transduction, Hydrodynamic. Hydrodynamic is the most widely accepted.
What is the most important nerve for Dental Hygiene consideration?
CN V - Trigeminal Nerve