The alveolar bone is the portion of the maxilla and mandible that forms tooth sockets (alveoli) to provide osseous attachment for the periodontal ligament. It is composed of an inner and outer cortical plate of compact bone surrounding a cancellous interior. The cortical plates contain haversian systems which bring blood vessels into thick bones. The bone lining the socket is also compact and referred to as bundle bone, cribriform plate, or lamina dura. The cancellous interior contains trabeculae that form a network with spaces in between. Osteoblasts, osteoclasts, and osteocytes are present in alveolar bone. Blood vessels enter through nutrient canals in the

1. Presented by-
Lipi Bhatt
3rd year
Batch-A
Roll no-6
Department of periodontics

2.  It is that portion of the maxilla &
mandible that forms & supports the tooth
socket(alveoli).
 It is formed when the tooth erupts , in
order to provide osseous attachment to
the forming periodontal ligament &
gradually disappears after the tooth is
lost.

3.  Inner & outer cortical plate.
 The bone lining the socket.
 An interior portion of cancellous bone.

4.  The cortical plate consist of compact
bone,in which the lamellae are often
arranged circumferentially around blood
vessel forming haversian system.
 Which are the internal mechanism the
bring a vascular supply to bones that are
too thick to be supplied only by surface
vessels.
Compact bone

5.  The cortical plate & the bone lining the
socket meet at the alveolar crest usually
2 mm below the cementoenamel
junction.

6.  The bone lining the socket is also
compact bone & can be known as any
of the following.
 Bundle bone,since bundles of sharpey`s
fibers from the periodontal ligament are
embedded in it.
 The cibriform plate,because it is
perforated by numerous vascular
channels.

7.  Alveolar bone proper, as it provides
direct bony support for the teeth.
 Lamina dura , which is radiologically
seen as dense plate.

8.  It consist of narrow irregular bony
trabeculae,which by branching & uniting
forms a network of spaces between the
trabeculae.
 There is considerable variation in the
proportion of compact to cancellous
bone in different regions of jaw & in
different tooth surface.

9.  Osteoblasts
 Osteoclasts
 Osteocytes

10.  The vessel enters interdental septa
through nutrient canals together with
veins,nerves & lymphatics.