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Richard, Deb and everyone, Just had a thought. Everybody has been looking at the modifications on this specimen as when the animal was alive. With the extreme "rasping" etc., what about THAT modification happening after death of the animal and this was done for an entirely different purpose than keeping the animal from biting? Something else to consider. Danny --- [log in to unmask] wrote: From: Richard Wright <[log in to unmask]> To: [log in to unmask] Subject: Re: [ZOOARCH] early medieval dog with canines smoothed down Date: Thu, 3 Nov 2011 09:04:05 +1100 Deb I enjoyed your extended reply, and feel a bit churlish by picking out only one sentence for comment. Your argument means, I imagine, that you don't attribute the sub-parallel scratches on the dog's canine to a rasp. So what are left with to explain them? Gritty diet, perhaps. That is why I was hoping that Idoia could tell us whether a microscope shows similar scratches on the occlusal surfaces of the posterior teeth. Richard On 3/11/2011 07:12, [log in to unmask] wrote: > If the tooth has been > reduced by the equine dentist's rasp or tooth-cutter, it will be smooth on > the day the reduction is performed but within two months the enamel rim > will be standing up again -- for the same reason, that the dentine will > wear down faster than the enamel.