title: [Destructive mechanism of gingival connective tissue in chronic periodontitis].
mesh_terms: D000818:Animals; D002908:Chronic Disease; D003094:Collagen / Q000378:metabolism*; D003238:Connective Tissue / Q000378:metabolism; D004285:Dogs; D005881:Gingiva / Q000378:metabolism*; D010518:Periodontitis / Q000378:metabolism*
chemical_list: D003094:Collagen