chapter 12 enamel

enamel is developed from ___________

everything besides enamel is developed from ___________

what is the hardest calcified tissue in the human body and at what percentage is it calcified?

enamel on an x-ray film appears ___________

are there nerves or blood vessels in enamel?
why?

enamel is _________-__________ (color) but is also _________ due to underlying dentin

what is the distinct process that secretes the enamel matrix?

the tome's process dictates the ________ shape of each pillar aka _______ ______ of enamel

the shape of the ________ _________ = the shape of the enamel

where is the matrix of the tooth first formed at? and where does it end up?

what is the apposition of the enamel matrix?

what is happening at the maturation of the enamel matrix

what do the ameloblasts pump into the matrix during maturation?

T/F like apposition, maturation mineralizes starting at the incisal and moves to the CEJ
True False

after the tooth erupts, what is it further being mineralized by?

what are the 2 components of mature enamel?

what is the crystalline structural unit of enamel

what is the space between each enamel rod where stain collects (like grout around tile)

in mature enamel, rods extend ______________ to the ______

what was the basement membrane that formed that battle lines?

what are incremental lines?

what are the four incremental lines?

what are the four listed microscopic features of mature enamel?

incremental lines showing that enamel is secreted cyclically is:

the raised scale-like pattern of enamel (stacked fish scales):

the grooves between each of the scales:

an accentuated incremental line because of the trauma at birth (darkest line):

ondontoblasts that crossed the basement membranes and get stuck in the forming of enamel. asymptomatic. these are called:

what are the two types of crystallization anomalies?

small, dark brushes with their bases near the DEJ. didn't crystallize correctly. asymptomatic. these are called:

partially calcified enamel sheets that extend fro the DEJ to the occlusal surface. narrower and longer than enamel tufts. asymptomatic