Dental Anatomy Notes
Classified in Biology
Written at on 
English with a size of 3 KB.
Lower Canine
Root may bifurcate into 2 divisions
Chron:
- Enamel: 6-7 y.o
- Eruption: 9-10 y.o
- Root: 12-13 y.o
Geo:
- Lng/lab: pentagon/trapezoid, short side cervical
Mes-Dis:
- Triangular base cervical
Incis:
- Diamond
Labially:
- Cervical ridge/labial ridge/mes-dis development grooves
Lingually:
- Cingulum/lingual ridge/mes-des marginal ridge/1 lingual fossa
Mesial Contact:
- Incisal third
Distal Contact:
- Middle third
Pulp Cavity:
- 1 pulp horn/oval shaped transversally
Cusp Length:
- Distal side is longer
Upper First Premolar
Mesial Marginal Developmental Groove/Canine Fossa
Chro:
- Enamel: 5-6 y.o
- Eruption: 10-11 y.o
- Root: 12-13 y.o
Geo:
- Lng/Bucc: Trapezoid; short side cervical
Mes-Dis:
- Trapezoid; long side cervical
Occlu:
- Hexagonal
Buccally:
- Cervical/Buccal Ridge/Mes-Dis Buccal Developmental Groove
Mesially:
- Canine Fossa/Mesial Marginal Developmental Groove
Mesial Contact Area:
- Occlusal and middle thirds junction
Distal Contact Area:
- Occlusal third
Occlusally:
- Close 2 well-developed cusps
- Each cusp has a triangular ridge
- Mes-Dis Marginal Ridges/Triangular Fossae/Developmental Pits/Long Central Developmental Groove
Pulp Cavity:
- 2 well-developed pulp horns
Two root: 80%---one root: 20%
Upper Second Premolar
Dentin Island
Chron:
- Enamel: 6-7 y.o
- Eruption: 10-12 y.o
- Root: 13-15 y.o
Geo:
- Lng/Bucc: Trapezoid short side cervical
Mes-Dis:
- Trapezoid long side cervical
Occlu:
- Rounded-Oval
Bucally:
- Cervical Ridge/Buccal Ridge/Mes-Dis Buccal Developmental Groove
Mesial Contact Area:
- Middle third
Distal Contact Area:
- Middle third
Occlusally:
- Far 2 well-developed cusps
- Each cusp has a triangular ridge
- Mes-Dis Marginal Ridges/Triangular Fossae/Developmental Pits/Short Central Developmental Groove
Pulp:
- 2 well-developed pulp horns
One root: 85%--two root: 15%
Old Age
- Size: reduced in height
- Loss of teeth
- Resorption of alveolar bone
Mental Foramen:
- Close to upper border of body of mandible
Canal:
- Close to upper border of body of mandible
Angle:
- 140
Condylar Head:
- Bent backward till it's lower than coronoid
Sigmoid Notch:
- Shallower than adult