Card Set Information
enamel is a crystalline structure made up of mostly what substance?
What percent of enamel is mineralized by:
What is the hardest substance in the body?
true or false. enamel is avascular and has no nerves, and it is non-vital and not renewable
both statements are true
Enamel produces a hard substance that is useful in __________ and_________
What does enamel look like, color wise?
shades of bluish white (it looks yellow because of the dentin underneath it
process of enamel matrix formation that occurs during the apposition stage
Enamel is first secreted at the __________ _____________ and continues in ____________
waves (like a volcano)
cells that are derived from the IEE, produce the enamel matrix, secrete the enamel matrix from the tome's process, and differentiate ONLY in the crown
does enamel maturation/mineralization continue after the tooth erupts?
What type of cells are specifically responsible for enamel mineralization?
true or false. Enamel mineralization happens in waves just like enamel formation
cells that are made up of compressed enamel organ and spent ameloblasts
Reduced enamel epithelium (REE)
REE fuse with the __________ ____________
What cells create a tunnel/canal for tooth eruption?
REE reduced enamel epithelium
When does the REE disintegrate and the ameloblasts are lost?
upon tooth eruption
residue from REE left on tooth
mineralization of tooth structure after eruption is due to what?
deposition of minerals from the saliva
What are the microscopic components that make up mature enamel?
What is the shape of enamel rods?
hexagonal because of tom'es process
outer region surrounding each enamel rod, where stain collects in enamel. This area can be bleached
slight ridges that exted mesial to distal in the cirvical third on certain teeth
What teeth are imbrication lines usually seen on in enamel/
maxillary central incisors
these are associated with lines of retzius
incremental lines in preparation of mature enamel, they are microscopic
lines of retzius
groove in between imbrication lines that are evident in some teeth
wearing away of enamel cuz of tooth on tooth
wearing away of enamel because of chemical means, like stomach acid or lemons
wearing away of enamel from some sort of mechanical force like a tooth brush
wearing away of enamel because of cariogenic bacteria
wearing away of enamel because of unknow factors, maybe clenching, it breaks off at cervical area