Helkimo used a mandibular mobility index to evaluate function and dysfunction in the masticatory system. The author is from the University of Groteborg in Sweden.
Parameters:
(1) maximal opening of the mouth in mm
(2) maximal lateral movement to the right in mm
(3) maximal lateral movement to the left in mm
(4) maximal protrusion in mm
|
Parameter |
Finding |
Points |
|
maximal opening of the mouth in mm |
>= 40 mm |
0 |
|
|
30 – 39 mm |
1 |
|
|
< 30 mm |
5 |
|
maximal lateral movement to the right in mm |
>= 7 mm |
0 |
|
|
4 – 6 mm |
1 |
|
|
<= 3 mm |
5 |
|
maximal lateral movement to the left in mm |
>= 7 mm |
0 |
|
|
4 – 6 mm |
1 |
|
|
<= 3 mm |
5 |
|
maximal protrusion in mm |
>= 7 mm |
0 |
|
|
4 – 6 mm |
1 |
|
|
<= 3 mm |
5 |
total score =
= SUM(points for all 4 parameters)
Interpretation:
• minimum score: 0
• maximum score: 20
• The higher the score the greater the dysfunction in mandibular mobility.
|
Total Score |
Mobility Index |
Mandibular Mobility |
|
0 |
0 |
normal |
|
1 to 4 |
1 |
slightly impaired |
|
5 to 20 |
5 |
severely impaired |
where:
• I would think that severely impaired could be subdivided further.
Specialty: Otolaryngology
ICD-10: ,
