alveolar bone and PDL

Name the 2 parts of the Alveolar Process

1 Alveolar bone proper
2 Supporting Bone

Alveolar bone proper is aka

Lamina dura
Cribiform
Bundle bone

The Mandible consists of?

Ramus
Body
Alveolar Process

Supporting bone consists of?

1)External supporting cortical plate of bone (lamellar bone)
2) An underlying cancellous bone

Anatomy of the bony socket consist of?

OISA
Outer cortical plate
Inner cortical plate
spongiosa
Alveolar crest

charac. of outer cortical plate?

Cheek side (compact lamellar bone)

charac. of inner cortical plate?

near tongue (compact lamellar bone)

charac of spongiosa

sandwhiched between cortical plates (cancellous bone)

charac. of alveolar crest

The coronal border of alveolar process; about 1.5mm below the DEJ

What must be present to have alveolar bone?

Teeth-Teeth must function to maintain alveolar bone health.

The alveolar bone is constantly changing and being remodeled in response to?

Normal funtion
Orthodontics

Bundle Bone

Part of the Alveolar Process where sharpeys fibers attach to area of PDL attachment.

Lamellar Bone

Sheet like bone that composes the rest of the supporting bone

Cribiform plate

Descriptive term-cluster of perforations to allow nutrients and nerves to extend between the bone and PDL.

Cribiform Plate is AKA?

Lamina Dura, Alveolar bone proper and bundle bone

Sharpeys fibers are?

Bundles of collagen fibers embedded in the bundle bone and is connected to the cementum of the tooth.

Sharpeys fibers appear?

At regular intervals with interstitial spaces between them. They contain blood vessels, nerves, and lymphatics.

Orthodontic movement causes?

Remodeling of Alveolar bone proper.
Compression is placed on the bone in the direction that the tooth is being guided to move.

Orthodontic pressure causes?

Osteoclastic activity and bone resorption. Tension on opposite side of tooth and bone formation occurs.