Not sure if you have something like this in your area but it looks really amazing
Gives me the shivers...at the 2:10 mark I swear that horse starts to awaken because that speculum is exerting such force on it's TMJ. It's not a normal speculum, it operates like a screw jack and can create extreme force. Ouch!! Typically the mouth isn't opened that wide for a standard hand/tactile float.
On the other hand the operator sure looks comfortable.