Category: Prosthodontics

Flexible Denture : Advantages

1.Aesthetics => Translucency of the material picks up underlying tissue tones, making it almost impossible to detect in the mouth. No clasping is visible on tooth surfaces (when used in manufacturing of clear clasps), improving aesthetics. No metal clasps are present. 2.Strength => Flexible denture material is so strong that it can be made very […]

July 21, 2013 | 1 Comment More

Principles of tooth preparation

If there’s a missing tooth è Decay, overeruption, tilting, food impaction and gum diseases. Principles of tooth preparation: a-Biological consideration. b-Mechanical consideration. c-Esthetic consideration.   a-Biological Consideration: 1-damaging during tooth preparation – Prevention of damaging of adjacent tooth by a metal matrix, and proximal enamel of the tooth being prepared (lip or fin). – prevention […]

May 31, 2013 | 0 Comments More

Biological Testing of Dental Materials

In 1978, the working team 5 of the Federation Dentaire International (FDI), the Commission for Dental Materials, Instruments, Tools and Therapeutics (COMIET) – today’s The Commission for Dental Products, have agreed upon the document No. 198 which was published in the bulletin No. 204.  The bulletin describes recommended tests for evaluation of dental materials.  It […]

April 30, 2013 | 0 Comments More

Arbitrary Adjustment of Occlusion Rims

Arbitrary Adjustment of Occlusion Rims This arbitrary adjustment provides a ‘starting point’ for adjustments and should be fairly rapid. It should normally not take longer than 15 minutes per arch. 1. Maxillary Occlusion Rim Adjustment – The maxillary wax rim should be slightly facial to the ridge to compensate esthetically for facial resorption of the […]

April 22, 2012 | 0 Comments More

Recording Maxillo-mandibular Relationships For Complete Denture

Recording Maxillo-mandibular Relationships For Complete Denture In order to fabricate complete dentures outside of the patient’s mouth, certain relationships need to be transferred to an articulator, which will be used to set the teeth and arrange the denture occlusion. These relationships include: Occlusal vertical dimension – amount of separation between the mandible and maxilla when […]

April 21, 2012 | 0 Comments More

Boxing and Pouring Final Impression for edentulous jaw

Boxing and Pouring Final Impression for edentulous jaw Boxing of a final impression should be: 1. Quick and easy with consistent results 2. Provide support and preserves flange contours 3. Compatible with cast material and impression material 4. Inexpensive 5. Avoid excessive trimming   The right side at the arrow is prepared correctly, with a […]

April 21, 2012 | 0 Comments More

Final Impressions for Complete Dentures

Final Impressions for Complete Dentures For final impressions for Complete Dentures required materials are : Impression Materials Irreversible hydrocolloid – hydrophilic, but viscous; stock tray distorts vestibular tissues Zinc oxide and eugenol – fast set, rigid (undercuts difficult), poor taste Polysulfides – poor taste, poor dimensional stability, poor elastic recovery Silicones – addition reaction – […]

April 21, 2012 | 0 Comments More

Beading and Boxing

Beading and Boxing Beading and Boxing is the procedure which is used to maintain the adequate sulcus depth in the final model. Beading is done to preserve the  width and height of the sulcus in a cast. Beading – 2-3 mm width strip of boxing wax if not available modeling wax is used. Boxing is […]

April 21, 2012 | 0 Comments More

Border Molding

Border Molding Border Molding means shaping borders of impression tray  Functional or manual manipulation of tissues  Duplicates contour & size of vestibule Performed with Thermoplastic modeling compound Waxes Impression materials Tray Wax Spacer Remains in place during border molding procedures Custom Tray Comfortable 2-3 mm from vestibule Dry periphery of tray (Compound will not stick […]

April 20, 2012 | 1 Comment More

Cranial and Facial Bones of Primary Interest in Prosthetic Dentistry

Cranial and Facial Bones of Primary Interest in Prosthetic Dentistry Artificial replacements for missing natural teeth (dental prostheses) must be made to fit jaw contours and work in harmony with muscle activity. Therefore, we will discuss only those facial bones which give shape to soft tissues within the mouth, serve as anchorage sites for muscles […]

April 19, 2012 | 0 Comments More
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