Setting maxillary posterior anatomic denture teeth cd 2nd yr
Maxillary deciduous anterior teeth
-
Upload
mon-gonzalez -
Category
Health & Medicine
-
view
7.241 -
download
9
Transcript of Maxillary deciduous anterior teeth
Maxillary Deciduous Anterior
Teeth
Central IncisorsLateral Incisors
Canines
Age of Eruption
Maxillary Teeth
Age of Eruption
Age of Falling Out
Central Incisor 8-12 months 6-7 years
Lateral Incisor 9-13 months 7-8 years
Canine 16-22 months 10-12 years
Maxillary Deciduous Central
Incisors
Maxillary Deciduous Central Incisors
Labial Surface The mesio-distal
diameter is greater than the cervico-incisal length.
Mesio-incisal angle is a right angle but the distal-incisal angle is round.
Maxillary Deciduous Central Incisors
Labial Surface Incisor edge is nearly
straight Cervical ridge is
obvious Developmental
grooves are not seen and the labial surface is very smooth
Maxillary Deciduous Central Incisors
Labial Surface Symmetrical Contact areas are the
same with the permanent successors
Maxillary Deciduous Central Incisors
Lingual Surface Well –developed
marginal ridges and highly developed cingulum
Lingual fossa is small Cingulum is large
Maxillary Deciduous Central Incisors
Proximal Surface La-li small incisal
thirds to middle thirds, crowns wider cervical third because of large cingulum.
The mesial and distal aspects are similar, triangle.
Maxillary Deciduous Central Incisors
Proximal Surface Curvature of
cervical line is distinct, curving toward the incisal edge.
Maxillary Deciduous Central Incisors
Incisal surface It is relatively straight
and the labial surface is much broader and smoother than the lingual surface
Maxillary Deciduous Lateral Incisor
Maxillary Deciduous Lateral Incisor
Similar to the central incisor from all aspects but differs in the ff.:
Crown is smaller in all directionsDisto-incisal angle are more roundedRoot much longer
Maxillary Deciduous Lateral Incisor
Labial Surface Cervico-incisal
diameter is greater than its Mesio-distal diamter
La Surface is smooth Root is cone-shaped
with tapered sides
Maxillary Deciduous Lateral Incisor
Lingual Surface
Well developed Marginal Ridges
Prominent Cingulum
Maxillary Deciduous Lateral Incisor
Proximal Surface MI < sharp
DI < more Rounded CEJ is distinct,
curving towards incisal ridge
Occlusal Surface Circular crown
outline
Maxillary Deciduous Canine
Maxillary Deciduous Canine
Labial Aspect Crown constricted at
the cervix Mesioincisal angle
more angular Distoincisal angle
rounded Cervical line is flat Sharp cusp tip Mesial cusp slope
longer than distal cusp slope
Maxillary Deciduous Canine
Labial Aspect Contact areas are
near the center of the crown cervicoincisally
MCA more cervically positioned than DCA
Root is longest among all the primary teeth prior to resorption
Blunt root apex
Maxillary Deciduous Canine
Lingual Aspect Bulky cingulum Well-developed MMR
and DMR Lingual ridge distal to
the middle of crown Narrower and deeper
distal fossa Broader and
shallower mesial fossa
Maxillary Deciduous Canine
Mesial Aspect Short incisal border Convex labial outline Lingual outline is
convex at the cingulum, becomes concave and resumes convexity at the cusp tip
Concave cervix Mesial surface is
evenly convex in all directions