Toru Nikaido, DDS, PhD,(a) Masaomi Ikeda, BSc, RDT,(a) Richard M. Foxton, BDS, PhD,(b) and Junji Tagami, DDS, PhD(a,c)
(a)Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan, (b)Division of Conservative Dentistry, Guy’s, King’s and St. Thomas’ Dental Institute, Kings College of London, London, UK, and (c)Member of the Center of Excellence Program for Frontier Research on Molecular Destruction and Reconstruction of Tooth and Bone, Tokyo Medical and Dental University, Tokyo, Japan
An 80-year-old woman was provided with a direct composite fixed-partial denture to replace a missing maxillary first premolar using a wax mock-up technique. A wax mock-up was made in the laboratory and then a silicone impression was taken of the basal aspect of the pontic to make silicone matrix. The surface of the adjacent maxillary canine was not prepared and the bonding surface was expanded to any undercut areas and the disto-labial/disto-buccal corners, while the adjacent maxillary second premolar had a MOD cavity as a retainer, because of the removal of the secondary caries associated with a failed metal inlay. A composite fixed partial denture was then directly fabricated at the chairside using the silicone matrix to shape the base of the pontic. This is fairly minimally invasive prosthodontic treatment option for constructing a transitional fixed partial denture. (Int Chin J Dent 2005; 5: 65-70.)
Key Words: adhesion, direct composite, fixed partial denture, pontic.