Unfortunately, Medicare does not cover any dental expenses unless it is related to a larger medical problem (for example, a dental exam before a hip replacement may be covered under Medicare). Depending on what state you live in, you may or may not be able to find a dental provider who accepts Medicaid assignment to fix your tooth. You should check with your state Medicaid agency for a list of dental providers
It sounds like a portion of the graft may have dislodged with the stiches and membrane. Most membranes are designed to stay in place for 4-6 weeks. The membrane protects the bone graft and prevents the gum tissue from invading the graft. You should follow up with your surgeon for an in person evaluation; he or she may be able to replace the graft.
Based on the photos you posted and your concern about your laterals being short and slanted, you appear to be a good candidate for veneers. A full examination with xrays would be required to give you a definitive answer
Bleeding gums are usually a sign of gum disease and inflammation. Teeth that have been treated with root canal therapy can cause pain if they become re-infected. You should consult with your dentist about your concerns or perhaps get a second opinion.
There are ways to increase height and width to deficient ridges for dental implant placement. Please consult with an experienced surgeon who can discuss your options.
