Removable Partial Dentures PDF

 Fardos Rizk Professor of Removable Prosthodontics Vice Dean Faculty of Dentistry Head of Examination Board Head of Prosthodontics Department British University in Egypt BDS Cairo University (1994) MDS Cairo University (2000) PHD Ain Shams Un...

 Fardos Rizk Professor of Removable Prosthodontics Vice Dean Faculty of Dentistry Head of Examination Board Head of Prosthodontics Department British University in Egypt BDS Cairo University (1994) MDS Cairo University (2000) PHD Ain Shams University(2007) Removable Partial Dentures Prosthesis Is an artificial replacement of an absent part of the human body Prosthetics The art and science of supplying an artificial replacement for missing part of human body Prosthodontics Dentulous Patients Patients having a complete set of natural teeth Edentulous Patients Patients having all their teeth missing Partially edentulous Patients Patients having one or more but not all their teeth missing  Edentulous Patients COMPLETE DENTURE  Partially Edentulous Patients Patients having one or more but not their entire natural teeth missing. Removable Partial Denture = R.P.D Fixed bridge= F.P.D Implant Removable Partial Denture, R.P.D Fixed bridge Implant Removable Partial Denture (RPD) Removable dental prosthesis replacing one or more natural teeth and associated oral structures Abutment A tooth, a portion of a tooth, or that portion of a dental implant that serves to support and/or retain prosthesis Free End Edentulous Area (Distal extension edentulous area): An edentulous area, which has an abutment tooth on one side only Bounded Edentulous Area: An edentulous area, which has an abutment tooth on each end  Types of RPD’s Interim Interim Definitive (permanent) temporary temporary Thermopress dentures  INDICATIONS FOR REMOVABLE PARTIAL DENTURES 1- No abutment tooth posterior to the edentulous space (Free end edentulous area)  INDICATIONS FOR REMOVABLE PARTIAL DENTURES 2- Long edentulous bounded span, too extensive for fixed restoration  INDICATIONS FOR REMOVABLE PARTIAL DENTURES 3- Periodontally weak teeth not sufficiently sound to support for fixed- partial denture. Periodontally weak teeth  Free end edentulous area Periodontally weak teeth 4- With excessive loss of residual bone, the use of labial flange or need to restore lost tissues. Excessive loss of residual bone With excessive loss of residual bone, space is seen under the pontic. 5- After recent extraction, usually done only to improve esthetics, or for patient satisfaction. 7- Young age (less than 17 years). 8- for economic reasons  Young Old Young age (less than 17 years) has a high pulp horn 9-Enhancing esthetics in anterior region, by the use of translucent artificial teeth and denture flange Contraindications of RPDs Whenever fixed restorations can be successfully used. When prognosis of remaining natural teeth is doubtful. Poor oral hygiene & high caries susceptibility. Lack of patient cooperation. OBJECTIVES OF REMOVABLE PARTIAL DENTURES Importance of the prosthesis A- Preservation of the health of the remaining teeth. B- Prevention of muscles and TMJ Dysfunction. C-Preservation of the residual ridge. D- Preservation of the tongue contour and space. Replacement of lost teeth prevents the migration of teeth into the edentulous area following the loss of the natural dentition Migration of teeth into the edentulous area following the loss of the natural Change the pattern of mandibular closure as a result of loss of some teeth OBJECTIVES OF REMOVABLE PARTIAL DENTURE E. Restore the Continuity of the Dental Arch to Improve Masticatory Function  OBJECTIVES OF REMOVABLE PARTIAL DENTURES F. Improvement of Esthetics, and Providing Support to the Paraoral Muscles, Lips and Cheeks  OBJECTIVES OF REMOVABLE PARTIAL DENTURES G. Enhance psychological comfort *Restoration of anterior teeth improves and restores appearance *RPD should provide socially acceptable esthetics  OBJECTIVES OF REMOVABLE PARTIAL DENTURES H. Restoration of Impaired speech Dento-labial F,v HAZARDS OF IMPROPERLY DESIGNED PARTIAL DENTURES Stagnation of food causes tooth decay Induce stresses on abutment teeth and tissues PM destruction Inflammation Bone resorption Improper occlusion cause T.M.J. disorders.  Tooth decay Inflammatory changes of soft tissues HAZARDS OF IMPROPERLY DESIGNED PARTIAL DENTURES Ill fitting denture Inflammation, ulceration ,gingival recession, bone resorption Sensitivity from acrylic resin ADVANTAGES OF REMOVABLE PARTIAL DENTURE OVER FIXED PARTIAL DENTURE 1- RPD constructed for any case whilst FPD are confined to short spans bounded by healthy teeth and with a normal occlusion. 2- Cheaper than fixed partial denture 3- They are easily cleaned 4- They are easily repaired 5- No tooth reduction is required THANK YOU