Module 2 Flashcards
(28 cards)
What are the Calcified tissues?
Enamel
Dentin
Alveolar bone
Cementum
What are the Non-Calcified?
Pulp
Periodontal ligament
Gingiva
-Calcified 98-99%
-The cervical area is thin or brittle
Enamel
Hard to process tooth prep.
Anesthesize when reducing
Dentino enamel junction
What are the structural elementa of enamel?
Enamel rod
Interprismatic substance
Prism sheath
Hallow surface for DEJ to external surface of the tooth
Enamel rod
Organic compound (25%)
Interprismatic substance
Enclose the enamle rod
Prism sheath
-Main bulk of the tooth
-less classified (65%)
-organic compound (35%)
Dentin
In between of dentinal tubules
Dentinal matrix
Performs function of nerve, can be found inside the dentinal tubules
Tome’s fiber
Fluid inside the dentinal tubules
Dentinal lymph
Greater branches,Also sensitive in tooth preparation bec it is where the greater branches of DT is located.
Nerve fibers
What are the three innervation theory?
Molecular theory
Hydrodynamic theory
ACHE theory
Release enzymes, pain is fealth when relase ACHE
ACHE theory
No merve fiber in DT, pain is perceive due to tome’s fiber
Molecular theory
No nerve fiber inside but pain is felt sue to compression of tome’s fiber
Hydrodynamic theory
What is the Most acceptable in al theory?
Hydrodynamic theory
Encloses root dentin, it is acellular or cellular.
Premature contact rel of natural tooth to the opposing tooth are recontact
Cementum
Soft connective tissue, classifies to 4 irritants
Pulp
What are the four irritants?
Mechanical irritant
Chemical irritant
Thermal irritant
Microbiologic irritant
Heat is form because of not using water spray
Thermal irritant
Cleaning agent after tooth preparation
Chemical irritant
Caries left inside the jacket crown
Microbiologic irritant
