Miller's classification of gingival recession predicts root-coverage outcomes. Which class describes recession extending to or beyond the mucogingival junction WITHOUT loss of interdental bone or soft tissue, so that 100% root coverage is still predictable?

Miller Class II = recession extends to or beyond the mucogingival junction, but the interproximal bone and soft tissue are intact, so complete (100%) root coverage is still predictable. Class I recession does not reach the MGJ (also 100% predictable). Classes III and IV have interdental attachment loss that limits coverage (partial in III, none in IV).Other options: Class I does not reach the MGJ; Classes III and IV involve interproximal bone loss and reduced coverage potential.Key exam takeaway: Miller I and II (no interdental loss) allow predictable full coverage; III (partial) and IV (none) have interproximal loss.