Lekholm and Zarb classified maxillary and mandibular bone in an edentulous person. This can impact the stability of a dental implant.
Measures:
(1) bone shape or volume
(2) bone density or quality
|
Alveolar Ridge |
Basal Bone |
Code for Bone Volume/Shape |
|
no or mild resorption (most remains) |
no resorption |
A |
|
moderate resorption |
no resorption |
B |
|
advanced resorption |
no resorption |
C |
|
none remains |
some resorption |
D |
|
none remains |
extreme resorption |
E |
|
Compact Bone |
Trabecular Bone |
Code for Bone Density/Quality |
|
homogenous compact bone throughout the entire jaw |
small amount of dense trabecular bone |
1 |
|
thick layer of compact bone |
core of dense trabecular bone |
2 |
|
thin rim of cortical bone |
care of dense trabecular bone |
3 |
|
thin rim of cortical bone |
core low density trabecular bone |
4 |
The final designation is expressed by combining the two codes:
(bone shape code) / (bone quality code)
Specialty: Otolaryngology
