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Concussion and subluxation
1.
2. 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.
3. CONCUSSION AND SUBLUXATION
Sub luxation (loosening):
An injury to the
tooth –supporting structure
with abnormal loosening,
but without displacement.
4. 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.
5. 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
6. 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.
7.
8. 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.
9.
10. 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.
13. 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.
