Abstract
Patient: Patient: A 77-year-old female patient complained her lower complete denture, which had been wearing for three years, was unstable and she hoped to fabricate new dentures. As severe resorption of alveolar bone, I fabricated upper and lower complete dentures with flange technique.
Discussion: Although old lower denture was well-fitting and had no problem about occlusion, several denture ulcers were seen on the mucous membrane of mandibular ridge. As the reason of this problem was thought that denture displacement which was occurred by the oral muscle pressure when function, new dentures were used a functional impression technique to keep the stability of new dentures by pressure from muscle activities around dentures.
Conclusion: Because of taking denture space, the problems of unstability and denture ulcer had improved.
