[The distribution of glycosaminoglycans in the temporomandibular ligament].

The distribution of glycosaminoglycans (GAGs) in the adult dog's Temporomandibular ligament (TML) was studied by histochemical methods. Two staining methods were used, Alcian blue/PAS and Alcian blue with different concentration of MgCl2 (the Critical electrolyte concentration (CEC) method). It was found that GAGs were mainly localized in the TML, especially in the ligamental midsubstance and condylar attachment area, rather than in the capsule. Various GAGs distributed differently between the TML and capsule and they were also different among the different parts of the TML, although the majority of the CEC values was found corresponded to those of Chondroitin/Dematan Sulfate. It was suggested that the different topographical distribution of GAGs between the TML and capsule was probably related to their structure and function.