Medicine: Building Jawbones

Few parts of the human skeleton are more subject to wear than the mandible, or lower jawbone. Aging alone can cause the bone to atrophy, or waste away. Chewing, mainly by those wearing dentures, can greatly accelerate the loss. For years doctors have dealt with mandibular atrophy—and with providing a better anchorage for false teeth —by painful and time-consuming bone and skin grafts. Now a Detroit oral surgeon may have found a better way. At a meeting of the American Society of Oral Surgeons in Las Vegas tins week, Dr. Irwin A. Small of...

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