I'll second that - I've seen a horse jaw where a missing upper molar caused misalignement and "V" shaped wear on a mand. second molar (if memory serves) resulted....
From: Analysis of animal remains from archaeological sites on behalf of Ian L. Baxter
Sent: Sat 07/05/2005 7:53 AM
To: [log in to unmask]
Subject: Re: [ZOOARCH] cattle molar wear
You do not say which molar tooth it is. "V" shaped wear can occur on the upper M3 when the lower P2 is absent and the hypoconulid (3rd pillar) is absent in the corresponding lower M3 due to misalignment of the teeth.