Normal Periodontium Flashcards
Whats Periodontology
The branch of dentistry that deals with the study
and treatment of the tissues surrounding and
supporting the teeth, especially the gums and
alveolar bone.
* Branch of dentistry dealing with the study
and treatment of diseases of the
periodontium.
For Example (Gingivitis, Periodontitis.)
The periodontium
consists of the
Alveolar process
Periodontal ligament
Cementum of the tooth
Gingiva
The ——– is the portion of the maxilla
or mandible in which the roots of the teeth are
embedded and by which the tooth roots are
supported
Alveolar process
An alveolar process consists of three
kinds of bone. They are the
Outer cortical plate,
Lamina dura, and
Spongy bone.
The —— is a thin, dense layer of bone
that lines tooth sockets
lamina dura
bone representing the alveolar
process’ central mass.
Spongy bone is the less dense, cancellous
(porous) bone representing the alveolar
process’ central mass.
The function of PDL
The fibers act as shock absorbers to
cushion the force of chewing impacts.
Define PDL
The periodontal ligament is a thin, fibrous
ligament connecting a tooth to the lamina dura
of the bony socket
The——– is the only tissue considered as
both a basic part of the tooth and a component
of the periodontium
cementum
It functions as an area
of attachment for periodontal ligament fibers.
CEMENTUM
Types of gingiva
1.Free Gingiva
2.Attatched Gingiva
Marginal/Free gingiva is divided into
1.Gingival sulcus
2.Interdental/Papillary Gingiva
Location of free gingiva?
Free gingiva extends from the
gingival crest to the bottom of the gingival
sulcus
Marginal gingiva is —-mm wide
1.5 to 2mm
Site of initial lesion of gingivitis is?
Interdental Gingiva
width of attatched gingiva?
0-9mm
Whats the blood supply of Periodontium?
Blood Supply
Supra-periosteal vessels
Vessels from PDL
Arterioles from Crest of interdental bone
