A MODIFIED VITAL AND NON VITAL ROOT SUB MERGENCE CONCEPT FOR OVER DENTURES; A CASE REPORT

DEPARTMENT OF PROSTHODONTICS & CROWN & BRIDGE

Abstract The shape and size of the alveolar ridge change when the natural teeth are removed. The alveoli become mere holes which begin to fill up with new bone, but at the same time the bone around the margins of the tooth sockets begins to shrink away. The shrinkage or resorption is rapid at first and then continues at a reduced rate throughout life. Ridge resorption occurs both in patients who wear dentures and those who do not. Some patients have little or no RRR over a long period of time while other patients have gross RRR in a very short period of time. The inevitable residual ridge resorption has been approached with different established scientific philosophies to bring about an effective modification and longevity in denture retention. Overdenture as a treatment option is not new and several criteria have to be fulfilled to plan a successful overdenture treatment plan. The following case report was planned following an old concept of retaining submerged vital and non vital roots but with a different approach.

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