After the dog was sedated, a large lesion was noted in the dog's lower jaw, along side the teeth. (blog.nhvnaturalpetproducts.com)
However, even the worn down level mouth is still PERFECTLY useful for his WORK And as far as eating anything but soft foods he certainly doesn't need his possibly worn down front teeth to chew anything as the chewing is done by his large and broad side teeth which is the SAME on BOTH scissors as well as level bites. (oldenglishsheepdogclubofamerica.org)
When your pet accepts handling of its mouth, wrap cloth or gauze around your index finger to wipe plaque from cheek side tooth surfaces and gum line. (speedwayvet.com)