Flashcards in Dr. Morrison's Endo Talk Deck (25):
A tooth is derived from _________.
Neural Crest Cells
What is the direction of building the teeth?
From the Crown first then down to the root
What are the 5 stages of building a tooth?
1.Bud 2.Cap 3.Bell 4.Dentinogenesis 5.Amelogenesis
What does the pulp arise from?
the dental papilla
What does the occulsial surface arise from?
the enamel knot
What are the three names for the end of the root?
1.Epithelial diaphragm 2.hertwigs root sheath 3.Cervial Loop
Some epithelial cells remain in the periodontal ligament as cell rests of _______.
An extra canal in the coronal 2/3s is called a _______ canal. An extra canal in the apical 1/3 (and furcations) is called a ______ canal.
coronal: Lateral Canal.....apical: accessory canal
Location of the _______ changes with age because of cementum deposition.
What is the most common cell type in the pulp?
What type(s) of collagen do the fibroblasts of the dental pulp make?
Type I and Type III
What is the name of the extension of an odontoblast into the dentin?
Odontoblasts are _____ shaped at the crown, _____ at mid tooth, and _____ at the apex.
Crown: columnar, Mid: Cuboidal, Apex: Squamous
Which region of the pulp contains the most type I and III collagen?
the apical region
What type of collagen is secreted by the odontoblast, where?
What type of fiber type do you have pain that does NOT linger? Which diagnosis is associated with this fiber type?
Pain Fibers A (alpha)...Reversible Pulpitis
Which type of fiber is associated with lingering pain? What diagnosis is this?
C Fibers (Central High Bobcats!)...Irreversible Pulpitis
What is the main theory of dentin sensitivity?
the hydrodynamic theory
What is the MAIN blood supply to the pulp?
Internal Maxillary Artery
What is the system found in the pulp that aids in 1. Normal blood flow and 2.Is a good defense mechanism?
A-V Shunt (Arterio-venous)
Where is blood flow the greatest?
the coronal pulp
What are the two nicknames for pulp calcifications?
pulp stones, denticles
Do not perform a _______ of a carious exposure!
direct pulp cap
How much success was there with a pulp cap after 10 years?