https://www.vetsurgeon.org/f/clinical-questions/23417/you-know-that-noise There is a particular noise that old unwell cats sometimes make, like really loud and severe tooth grinding or something stuck in their mouths - I&#39;ve seen in usually in debilitated cats which often don&#39;t do very well (almost like a totoally anecdotalen-USTelligent Community 10https://www.vetsurgeon.org/thread/145150?ContentTypeID=1Fri, 16 Oct 2015 09:12:29 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:a8395db1-11d6-42ec-983d-00bcdcc7b317Martin Atkinson<p>Well.....I have a 17 year old cat which grinds his teeth and has for the past few years although I don&#39;t recall he did it when he was younger. &nbsp;He does it with moist and dry food. He has IRIS stage 2 CKD with hypokalaemia, had a unilateral thyroidectomy but T4 is currently still normal and hypertrophic cardiomyopathy but no soreness in his mouth. He&#39;s presently on benazepril, Kaminox low dose aspirin and Aktivait as he&#39;s also acting a bit senile. His teeth are perfect - I did a dental scale/polish and assessment a few weeks ago albeit it was barely necessary as his teeth are amazingly good for his age with no loss of dentition. However he is as deaf as post so I wonder if it is some response to that, he may not even know he&#39;s doing it.</p><div style="clear:both;"></div>