Laboratory stages of manufacture of complete dentures Laboratory stages of manufacture of complete dentures. Peculiarities of choice of materials for prostheses in patients Gerontological profile.

Complete Denture

Complete denture prosthodontics: involves an artificial replacement of the lost natural dentition and associated structures of the maxilla and mandible for patient who has lost all their remaining natural teeth. Complete denture A removable dental prosthesis that replaces the entire dentition and associated structures of the maxilla or mandible.

Diagnosis and Treatment Plan

Complete dentures have three surfaces: 1- The fitting surface. 2- The occlusal surface. 3- The polished surface.

Tissue Condition Improve Tissue Health

Clinical and laboratory steps of complete denture construction 1. Examination of the mouth. 2. Preliminary impression making. Pouring of impression to obtain the Construction of special (custom) trays 3. Final impression. Boxing and pouring of the final Construction of recording bases 4. Recording jaw relationships and selection of artificial teeth. Mounting of the models with occlusal rims on articulator. setting-up of teeth and waxing-up. 5. Try-in of the waxed-up denture. Processing of the dentures (flasking, wax elimination, packing, curing, deflasking & polishing 6. Insertion of the finished denture. 7. Post-insertion care.

Tissue Condition Resilient Liner

Repair Denture if Necessary

Preliminary Impressions

Pour Diagnostic Casts

Make Custom Trays More Accurate Impressions

Border Mold Accurate Registration of Peripheries for Retention

Remove Tray Spacer and Load Impression Material

Make Final Impression

Box Impression Stronger cast with peripheries for Processing

Pour Master Casts

Record Bases and Occlusion Rims For Making Jaw Relationship Records

Facebow Record Relates Maxilla to Transverse Hinge Axis

Mount Maxillary Cast Same Relationship to Transverse Hinge Axis

Determine Occlusal Vertical Dimension Facial Height/Separation of Dentures

Centric Relation Registration Ant/Post & Mediolateral Relationships

Mount Mandibular Cast on Articulator

Set Anterior and Posterior Teeth in Wax Ability to Visualize and Change Appearance

Finalize Waxup

Remove Denture from Articulator Flask for Processing

Flask Waxup

Boil Out Wax and Remove Record Bases Teeth Trapped in Stone

Pack Acrylic Resin Hydraulic Pressure or Injection

Remount and Adjust for Processing Errors

Fabricate Remount Index

Remove From Cast Finish and Polish

Remount & Adjust Occlusion

Variations Single Dentures

Delivery to the patients

Function of complete denture: 1- Mastication: chew food for swallowing and digestion. 2- Speech (phonetics): the teeth either natural or artificial assist the tongue and lips to form some of the sounds of speech. 3- Appearance (aesthetic): is influence by the shape of jaws together with the position and occlusal relation ship of the teeth. 4- Health of the alveolar bone and the tempro- mandibular joints (T.M.J).