Preprosthetic vestibular sulcus extension by the operation of Edlan and Mejchar. A 2-year follow-up study-I.

Nineteen patients suffering from denture retention problems and/or pain on function due to atrophy of the mandibular alveolar ridge were operated on by the method of EDLAN & MEJCHAR. All patients felt an improvement of denture retention. Three out of seven still had pain on function after the operation. An average of 80% of the surgically created sulcus extension remained after 2 years.