TCDHA Histology- Lectures | | |
6,7,8,9- Exam questions with | | | |
precise detailed answers | |
enamel - Correct answer ✔covers anatomical crown
| | | | | | |
avascular/non-vital
96% inorganic- calcium hydroxyapatite
| | | |
3% water
| |
1% organic- enamelin
| |
amelogenesis - Correct answer ✔process of enamel matrix formation and
| | | | | | | | | |
mineralization |
occurs during appositional stage
| | | |
DENTIN MUST BE PRESENT | | |
enamel is first formed in - Correct answer ✔cusp/tip area of tooth
| | | | | | | | | | |
,ameloblasts - Correct answer ✔produce enamel matrix
| | | | | |
develop on inner surface of enamel organ (IEE)
| | | | | | |
cause outer cells of dental papilla to become odontoblasts
| | | | | | | |
tomes process - Correct answer ✔secretes enamel matrix
| | | | | | |
enamel pearl - Correct answer ✔small spherical enamel projections on root
| | | | | | | | | | |
surface
enamel dysplasia - Correct answer ✔faulty development of enamel
| | | | | | | |
deepened pits and fissures - Correct answer ✔common
| | | | | | | |
when ameloblasts back into one another during apposition
| | | | | | | |
larger areas for dental caries
| | | |
sealants - Correct answer ✔used in prevention of caries
| | | | | | | |
Mineralization - Correct answer ✔complete and immediate | | | | | | |
,ameloblasts actively pump calcium hydroxyapatite into forming enamel matrix
| | | | | | | | |
as it is secreted by tomes process
| | | | | |
enamel rod - Correct answer ✔structural unit of enamel
| | | | | | | |
key hole shaped
| | |
rods are aligned DEJ except in cervical regions of permanent teeth
| | | | | | | | | |
lines of retzius - Correct answer ✔seen with transmitted light
| | | | | | | | | |
represent incremental growth lines that extend from DEJ
| | | | | | |
neonatal lline - Correct answer ✔a pronounced line of Retzius marked by
| | | | | | | | | | | |
stress/trauma experienced by ameloblasts during birth | | | | |
nasmyths membrane - Correct answer ✔primary enamel cuticle
| | | | | | | |
delicate membrane covers entire crown of newly erupted tooth
| | | | | | | |
green or yellow- easily worn away
| | | | |
hunter-schreger bands - Correct answer ✔seen with reflected light | | | | | | | | |
, change in direction from prism to next
| | | | | | |
originate from DEJ- run perpendicular to lines of retzius
| | | | | | | | |
strength against force
| |
perikymata - Correct answer ✔external manifestation of line of retzius
| | | | | | | | | |
raised grooves on enamel surface
| | | |
enamel spindles - Correct answer ✔dentinal tubules that pass across DEJ into
| | | | | | | | | | | |
enamel and bcome trapped
| | | |
found beneath cusps and incisal tips of teeth
| | | | | | |
enamel tufts - Correct answer ✔small dark brushes
| | | | | | | |
represent areas of less mineralization
| | | |
enamel lamellae - Correct answer ✔partially mineralized vertical sheets of
| | | | | | | | | |
enamel matrix | |
transverse cracks from occlusal surface of enamel to DEJ
| | | | | | | | |
6,7,8,9- Exam questions with | | | |
precise detailed answers | |
enamel - Correct answer ✔covers anatomical crown
| | | | | | |
avascular/non-vital
96% inorganic- calcium hydroxyapatite
| | | |
3% water
| |
1% organic- enamelin
| |
amelogenesis - Correct answer ✔process of enamel matrix formation and
| | | | | | | | | |
mineralization |
occurs during appositional stage
| | | |
DENTIN MUST BE PRESENT | | |
enamel is first formed in - Correct answer ✔cusp/tip area of tooth
| | | | | | | | | | |
,ameloblasts - Correct answer ✔produce enamel matrix
| | | | | |
develop on inner surface of enamel organ (IEE)
| | | | | | |
cause outer cells of dental papilla to become odontoblasts
| | | | | | | |
tomes process - Correct answer ✔secretes enamel matrix
| | | | | | |
enamel pearl - Correct answer ✔small spherical enamel projections on root
| | | | | | | | | | |
surface
enamel dysplasia - Correct answer ✔faulty development of enamel
| | | | | | | |
deepened pits and fissures - Correct answer ✔common
| | | | | | | |
when ameloblasts back into one another during apposition
| | | | | | | |
larger areas for dental caries
| | | |
sealants - Correct answer ✔used in prevention of caries
| | | | | | | |
Mineralization - Correct answer ✔complete and immediate | | | | | | |
,ameloblasts actively pump calcium hydroxyapatite into forming enamel matrix
| | | | | | | | |
as it is secreted by tomes process
| | | | | |
enamel rod - Correct answer ✔structural unit of enamel
| | | | | | | |
key hole shaped
| | |
rods are aligned DEJ except in cervical regions of permanent teeth
| | | | | | | | | |
lines of retzius - Correct answer ✔seen with transmitted light
| | | | | | | | | |
represent incremental growth lines that extend from DEJ
| | | | | | |
neonatal lline - Correct answer ✔a pronounced line of Retzius marked by
| | | | | | | | | | | |
stress/trauma experienced by ameloblasts during birth | | | | |
nasmyths membrane - Correct answer ✔primary enamel cuticle
| | | | | | | |
delicate membrane covers entire crown of newly erupted tooth
| | | | | | | |
green or yellow- easily worn away
| | | | |
hunter-schreger bands - Correct answer ✔seen with reflected light | | | | | | | | |
, change in direction from prism to next
| | | | | | |
originate from DEJ- run perpendicular to lines of retzius
| | | | | | | | |
strength against force
| |
perikymata - Correct answer ✔external manifestation of line of retzius
| | | | | | | | | |
raised grooves on enamel surface
| | | |
enamel spindles - Correct answer ✔dentinal tubules that pass across DEJ into
| | | | | | | | | | | |
enamel and bcome trapped
| | | |
found beneath cusps and incisal tips of teeth
| | | | | | |
enamel tufts - Correct answer ✔small dark brushes
| | | | | | | |
represent areas of less mineralization
| | | |
enamel lamellae - Correct answer ✔partially mineralized vertical sheets of
| | | | | | | | | |
enamel matrix | |
transverse cracks from occlusal surface of enamel to DEJ
| | | | | | | | |
