Call any dentist and ask for help. They will either help you out or know where you can go for help.
Oral surgery is almost absolutely out of the question for a congestive heart failure sufferer. That has to be corrected first.

Bacteria from poorly maintained teeth actually attack the heart; people who floss regularly live longer. But your father needs to get a diuretic and blood pressure medicine to get his heart out of danger before you worry about his teeth.

Put his veggies in a blender and make a shake for him; it will taste funny but be good for him.

Most dental schools will do some indigent care in turn for letting their students practice on these patients. However, your husband’s CHF is a factor for any type of anesthesia. He should be able to take acetaminophen (tylenol) for pain relief, as that doesn’t thin the blood like high levels of ibuprofen does. I would suggest that you speak with his cardiologist about appropriate pain control. And since he is indigent, he would probably qualify for the state’s medicaid/medicare plan which would have somekind of coverage for treatment of his CHF. If he has periodental disease from poor oral healthcare, then that would likely be covered too.

no call medicade in your state they can help you