Nancy,
speak directly to the Administrator of the home regarding the loss of your mother's teeth. Someone should be looking for them. They may be responsible for replacing them. If you can't get to the administrator, talk to the social worker who is in charge of the residents/patients on your mothers unit. You might also try getting a hold of the Ombudsman who goes to that home. I work in a nursing home. Your mother has rights. You may need to advocate for her. I don't know about the relatives, but having power of attorney doesn't necessarily mean they are responsible for going out and buying her clothes. Is the POA also listed as the next of kin and/or responsible party? Laws vary from state to state, but I don't think residents' right do. She still has them. Good luck. Also, could some of her clothes been in the laundry dept?

Louisa