A fixed movable resin-bonded fixed dental prosthesis – A 16 years clinical report  Michael G. Botelho, BDS, MSc (Lond), PhD (Wits), MRDRCSEd, FRACDS, Walter Y.H. Lam, BDS, MDS (Pros), AdvDipProsthodont, FRACDS, MFDSRCSEd, MFDSRCPSG, MProsRCSEd  Journal of Prosthodontic Research  Volume 60, Issue 1, Pages 63-67 (January 2016) DOI: 10.1016/j.jpor.2015.10.003 Copyright © 2015 Japan Prosthodontic Society Terms and Conditions

Fig. 1 Mandibular arch showing edentulous spaces and tooth abutments after preparation. Journal of Prosthodontic Research 2016 60, 63-67DOI: (10.1016/j.jpor.2015.10.003) Copyright © 2015 Japan Prosthodontic Society Terms and Conditions

Fig. 2 Sectional Snap Stone cast surveyed to ensure maximum retainer extension for the chosen path of insertion. Journal of Prosthodontic Research 2016 60, 63-67DOI: (10.1016/j.jpor.2015.10.003) Copyright © 2015 Japan Prosthodontic Society Terms and Conditions

Fig. 3 Wax sheets of 0.8mm thickness are adapted to the abutments of the investment models and sealed down and extended with blue inlay wax. Journal of Prosthodontic Research 2016 60, 63-67DOI: (10.1016/j.jpor.2015.10.003) Copyright © 2015 Japan Prosthodontic Society Terms and Conditions

Fig. 4 The finished four-unit fixed-fixed RBFPD prior to cementation. Journal of Prosthodontic Research 2016 60, 63-67DOI: (10.1016/j.jpor.2015.10.003) Copyright © 2015 Japan Prosthodontic Society Terms and Conditions

Fig. 5 After 21 months of clinical use, the fixed-fixed RBFPD was observed to have debonded on the major retainer. A sickle scaler was used to diagnose the debond by lifting up the major retainer. Note a non-working side occlusal interference on the disto-buccal cusp (arrow). Journal of Prosthodontic Research 2016 60, 63-67DOI: (10.1016/j.jpor.2015.10.003) Copyright © 2015 Japan Prosthodontic Society Terms and Conditions

Fig. 6 The minor retainer was cast with a customized tapering box shaped matrix into which DuraLay (Reliance) pattern resin was applied. The major retainer and pontic was waxed up and cast in nickel chrome after which the matrix and patrix were adjusted to ensure independent between the major and minor retainer. Journal of Prosthodontic Research 2016 60, 63-67DOI: (10.1016/j.jpor.2015.10.003) Copyright © 2015 Japan Prosthodontic Society Terms and Conditions

Fig. 7 The long-span fixed-movable RBFPD after 16 years of clinical use and no debond. Journal of Prosthodontic Research 2016 60, 63-67DOI: (10.1016/j.jpor.2015.10.003) Copyright © 2015 Japan Prosthodontic Society Terms and Conditions