Whats the clinical crown
The visible portion if the enamel above the gum thats you can see with your bare eye, not including the deeper enamel, dentin or pulp
Why can't the enamel regenerate after eruption
Because the Ameloblasts are lost/ died as the tooth erupts
How thick is the enamel generally in incisors
In the incisal edge is 2mm thick
How thick is the enamel generally in premolars
In the cusps is 2.3-2.5mm thick
How thick is the enamel generally in molars
In the cusps is 2.5-3mm thick
In which part of the mandibular molars is the enamle the thickest
In the buccal cusps
In which part of the maxillary molars is the enamle the thickest
In the palatal cusps
Whats the organic matrix of enamel made of?
4-12% of water, 1-2% protein
Whats the inorganic part of the enamel made of
By volume 90-92% Symmetrically repeating Hydroxyapatite(calcium phosphate) crystals
How many rods are there in mandibular incisors
5 million
How many prisms are there in molars
12 million
How big is the diameter of enamel rods near the DEJ
4 microns
How big is the diameter of enamel rods on the surface of enamel
8 microns