Archive for the ‘ Fixed Partial Dentures ’ Category
4 Units Zirconia Fixed Partial Denture
All ceramic fixed partial dentures on full coverage abutments offer the follwing benefits:
1. Corrosion problems are avoided.
2. They have good esthetic properties.
3. Natural looking restorative material color.
4. Zirconia FPDs have very low temperature conduction.
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Individual crowns for 11, 21 and 31 and a fixed partial prosthesis to replace 14, 15 and 16. Tooth numbers 13 and 17 were used as the abutment teeth.
For this case the missing teeth are upper first molar, upper second premolar and upper first premolar. A fixed partial denture was fabricated to replace the missing teeth. The cuspid and second molar were used as abutments. They were prepared, 2 mm reduction with shoulder margin on the labial and chamfer on the lingual. Porcelain fused to metal was chosen as the material for this bridge to attain enough structural strength. To balance the occlusion three pontics were used, eventhough esthetically, the space can be filled up by two pontics. Ceramics fused to metal was also used to lower the cost. Individual porcelain fused to metal crowns were also fabricated for the upper lateral incisor, and two upper central incisors. Butt joint was implemented around the margin to hide the reflection of the metal structure labially and of course, to enhance the overall esthetics. For more info about our affordable denture treatment, please view our Location page.
Porcelain Fused to Metal Fixed Partial Denture - Unglazed
The most popular choice for fixed partial dentures remains to be the metal ceramic restorations. This is attributed to natural looking ceramic material supported with a high strength of metal alloy. Added to this property is its ease of fabrication and affordable pricing. Read more
Involvement of TMD in prosthodontics is oftentimes ignored. Denture treatment and other dental management usually concentrate on dentition and the surrounding structure setting aside the importance of temporo mandibular joint. We can not get away from the fact that the dental structure is at the interior segment of the mandible and the joint is at the posterior. Any manipulation or correction of the dentition is automatically reflects a certain degree of change at the joint area. Any kind of treatment approach without awareness of the joint’s existence may put the dentist at legal risk.
Fixed Partial Denture Treatment
Porcelain veneers have the following disadvantages:
Time
The placing of veneers is technique sensitive and therefore time consuming.
Repair
Veneers cannot be easily repaired once tghey are cemented to the enamel.
Porcelain Veneers for tooth 11 and 21.
A 3 Units Porcelain Fused to Metal Fixed Partial Denture was contructed to replace a missing tooth (46, FDI Two-Digit Notation). Abutment teeth are lower right second premolar and lower right second molar (45 and 47, FDI Two-Digit Notation). Missing tooth is lower right first molar (46, FDI Two-Digit Notation). The patient is a 72 years old female.
Buccal view of lower 3 units porcelain fused to metal dental bridge
Fixed Partial Denture
Fixed Partial Denture for Equipoise
Causes of Injury in Tooth Prep
Considerable heat is generated by friction between a rotary instrument and the surface being prepared. Excessive pressure, higher rotational speeds, and the type, shape and condition of cutting instrument. Feather light touch and water spray should be used.
Chemical Action
The chemical action of some dental materials (bases, restorative resins, solvents and luting agents) can caused pulpal damage.
Bacterial Action
Pulpal damage under restorations has been attributed to bacteria that either were left behind or gained access to the dentin because of microleakage. Antimicrobial agent after tooth preparation and before cementation should be used.
Tooth preparation for endodontically treated teeth for Fixed Partial Denture
Preop Periapical X Ray Showing Endo Treated Central and Lateral Incisor
Root canal
Remove only minimal tooth structure. Overenlargement can perforate or weaken the root. The thickness of the remaining dentin is the prime variable in fracture resistance of the root.
Coronal
As much of the coronal tooth structure should be conserved as possible.
Provisional Dental Crowns
Procedure
Tooth preparation for endodontically treated teeth is a 3 stage operation
1. Removal of the root canal filling material to the appropriate depth.
2. Enlargement of the canal.
3. Preparation of the coronal tooth structure.
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