Abstract
Patient: A 72-year-old man was referred to our department because of mandibular denture instability. The diagnosis revealed an instability of both the maxillary and mandibular dentures resulting from periodontal disease of the remaining upper teeth and a marked reduction in the residual ridge dimensions. A maxillary overdenture utilizing crown and sleeve-coping retainers and a mandibular complete denture were applied to the patient as .nal prostheses in terms of rehabilitating a stable occlusal relationship.
Discussion: During the observation period, the stability of dentures, the periodontal tissue condition, and an occlusal relationship were maintained. A rehabilitation of the stable occlusal relationship had thus seemed to be accomplished.
Conclusion: For a patient with few remaining teeth affected with periodontal disease, the preservation of these teeth and a rehabilitation of stable occlusal relationship were successfully conducted by the use of an overdenture utilizing crown and sleeve-coping retainers.
