input: [1] Degu makes a grinding noise with their teeth. May accompany difficulty eating and a painful mouth. [2] Bruxism Molar laceration [3] The grinding noise is caused by the involuntary grinding of the molars (back teeth). This can be caused by the growth of the molars not being worn down properly. This can cause problems as the buccal surface may become sharp and lacerate the cheeks causing painful mouth sores. See molar malocclusion above. [4] Some degus occasionally grind their back teeth together. This is nothing to worry about. However, if the grinding accompanies difficulty eating or a painful mouth you should get a vet to check your degu's molar teeth and file them down. A degu that has this problem will need their teeth checked regularly. [5] GOOD [0] 
output: Teeth