I am a survivor of Tongue Ca for 12 years and am having problems with all the crowns that I have had put in since the surgery. They are all coming loose. Is there anyone out there that has had implants? All on 4 implants? Radiation treatments have really hampered my gums healing times. I have had 2 extractions to date leaving large caves. What should I do??

Maria 33 when diagnosed with SCC, partial glossectomy with skin graph from thigh,rt side nodes removed,ten nodes positive, PEG, 30 RAD tx, 1998. Scans clean.30 HBO tx-Massive dental work 07-08, ORN present 2009.