Module 3 Flashcards
Cementum is a _______ tissue that covers the surface of the _____?
connective
root
Cementum attaches to the ______ of the root?
dentin
________ of cementum is the reason that it is possible to move teeth in orthodontic treatment?
resistance to resorption
What are the 2 MAIN types of cementum?
Acellular (Primary)
Cellular
The Cementum has its own rich blood/nutrient supply? T/F
False
it gets these things from the PDL
What are the 2 main functions of the cementum?
Give attachment site for PDL fibers
Seal of dentinal tubules
What does cementum do in order to compensate for attrition?
Lay down more cementum at the apical region of the tooth.
Cementum is _____ active than other tissues and is more about _____ of material?
less
deposition
_______ cementum is responsible for attaching the tooth to the alveolar bone?
Acellular (primary)
Acellular cementum contains ____ living cells and is the ____ to be formed.
NO
1st
The Acellular cementum covers the ______ portion of the tooth and is ____-____ um thick.
cervical
30-60
______ cementum is formed after the tooth erupts?
Cellular
Which cementum is more calcified?
Acellular
The cellular cementum is _-___ um thick and covers the ____ region of the tooth?
150-200
apical
O.M.G. stands for?
Overlap
Meet
Gap
Cementum overlaps _____ % of the time
Cementum meets _______% of the time
Cementum gaps ______% of the time
60
30
10
What can WE do to help minimize discomfort due to a gap between cementum and enamel at CEJ?
use anesthetic
apply desensitizing agent (fluoride, gumma)
Define Root Planning?
intentional removal of cementum
Define Root Debridment?
Trying to avoid removing cementum
No cementum = __________ which = ______?
no fibers bundles
mobility of tooth
Cementum is harder than enamel, bone, and dentin? T/F
False
What is the term for when cementum attaches to the alveolar bone?
Akylosis
A prominent thickening of the cementum is termed?
Hypercementosis
A cemental union of 2 teeth is termed?
Concrescense
Concrescence usually occurs in what region of the mouth?
MX molar
Ankylosis can occur after ____ infection or _____?
chronic periapical
occlusal trauma
