RELINING OF RPD *Charlston E. Uy · Relining - resurfacing of the tissue surface of a denture base with new material to make it fit the underlying tissues more accurately Prosthesis to be relined must possess the ff: a. framework is in good condition b. occlusion can be corrected easily c. denture base material is in good condition d. artificial teeth are in good condition e. denture base borders are reasonably accurate *Before relining or rebasing is undertaken, the oral tissues should be returned to a state of health. Direct Reline (Autopolymerizing Resin) Procedure: 1. Relieve the tissue side and borders of the denture base. 2. Apply lubricant or tape over the polished surface. 3. Mix the powder and liquid in a suitable container. 4. Have the patient rinse with cold water. 5. Wipe the fresh surfaces of dried denture with a cotton pellet or small brush saturated with acrylic resin monomer. 6. Apply resin to the tissue side of the denture base and over the borders. 7. Immediately place the denture in the mouth and have the patient occlude. 8. Manipulate the cheeks to turn the excess at the border 9. Immediately remove the denture from the mouth. 10. Trim away gross excess material and any material that has flowed on tooth surfaces and framework. 11. Replace the denture in the mouth of the patient. 12. Repeat border movements. 13. Remove the denture and quickly rinse and dry relined surface. 14. Apply glycerine/Tect-ol with cotton pellet. 15. Bench cure in a container of cold water. 16. Trim and polish Indirect reline (Laboratory Reline) Laboratory may receive: 1. Prosthesis with reline impression of the denture base areas 2. Alginate impression with the prosthesis embedded in it · New impression registration or Reline impression - necessary before relining or rebasing · Impression Materials: a. metallic oxide impression paste b. rubber impression materials c. activated acrylic resin d. mouth-temperature wax References: Mc Givney, Glen P., Castleberry, Dwight J. Mc Cracken’s Removeble Partial Prosthodontics, 6th Edition, pp 446-450 Kuebker, William A. Dental Laboratory Procedures: RPD, pp 410-413.