Concussion and subluxation

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Transcript of Concussion and subluxation

CONCUSSION AND SUBLUXATION

Concussion:

An injury to the tooth

–supporting structure

without abnormal loosening

or displacement of the tooth,

but with marked reaction

to percussion.

CONCUSSION AND SUBLUXATION

Sub luxation (loosening):

An injury to the

tooth –supporting structure

with abnormal loosening,

but without displacement.

CONCUSSION AND SUBLUXATION

Healing and pathology:

In luxation injuries only minor damage has occurred in the

periodontium.

In the case of concussion the impact has resulted in

bleedingand edema which makes the tooth

sensitive to occlusal forces and to a percussion

test. Abnormal mobility is not present.

CONCUSSION AND SUBLUXATION

Healing and pathology:

In case of sub luxation some damage to

ligament fibers has occurred which

makes the tooth mobile in horizontal

direction and sometimes also with a small

component in vertical direction

CONCUSSION AND SUBLUXATION

Clinical examination:

Concussion:Reveals a marked reaction to percussion in horizontal or

vertical direction.

The tooth shows no abnormal mobility.

No bleeding from gingival sulcus.

Positively to sensibility tests.

CONCUSSION AND SUBLUXATION

Clinical examination:

Subluxation:

The tooth is mobile in horizontal direction.

Sensitive to percussion and occlusal forces.

Present of bleeding from gingival sulcus.

Positively to sensibility tests.

CONCUSSION AND SUBLUXATION

Radiographic findings:

No change can be seen in the periodontal ligament

space.

In cases with grade 3 vertical mobility may be seen

slight widening of the PDL space.

CONCUSSION AND SUBLUXATION

Treatment:

Relief of occlusal interferences by selective

grinding of opposing teeth.

Splinting if severe loosening.

Soft diet for 14days.

CONCUSSION AND SUBLUXATION

Follow-up :

Follow-up schedule use 4 to 6 weeks.

If clinical findings (including sensibility) test

and radiographic examination show no

abnormal findings controls can be terminated at

this time.

CONCUSSION AND SUBLUXATION

complication :

Pulp necrosis

Pulp resoption

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