What are fixed dentures?
Fixed dentures allow missing or damaged teeth to be replaced.
They are fixed because they are permanently affixed, that is, they cannot be removed independently.
They are cemented to natural teeth.
Fixed prosthetics
Replaces missing teeth.
Restores destroyed teeth.
Improves aesthetics.
The types of fixed prostheses
Crowns.
Bridges.
Veneers.
Inlays.
Maryland bridge.
California bridge.
What are the advantages
Aesthetic and functional.
The advantages
Fixed prosthetics has the primary function of restoring full function of the existing tooth and its replacement, if missing.
It improves and perfects aesthetics. It is the details that make the difference.
It facilitates daily oral hygiene by improving the anatomical shape of teeth.
The best material for making fixed dentures is zirconia-ceramic and monolithic zirconia: monolithic zirconia for the posterior teeth and for the inner layer of the anterior teeth. The anterior teeth are subsequently layered with surface ceramic to ensure maximum esthetics of the esthetic restoration.
Materials
It is a biocompatible material that provides solidity and strength to the prosthesis and, due to its translucency, is virtually the same as a natural tooth.
Zirconium-ceramic capsules do not have black edges, and it is very difficult to distinguish them from natural teeth.
In some cases, lithium disilicate (inlays), a material very similar to zirconium-ceramic, is used. Only in very rare cases is metal-ceramic or gold ceramic used.
Types of fixed prostheses
Single crown
A crown is a prosthesis for the single tooth that has lost much tooth substance but still has a root. It is cemented to the appropriately prepared tooth (abutment). The crown makes it possible to recover a destroyed tooth and still preserve it for many years.
Bridge
The bridge allows the rehabilitation of areas where the tooth was lost by taking advantage of those still present. A bridge can be applied in a space between two existing, anatomically sound, firm and well-rooted teeth (bridge abutment teeth), properly prepared.
Bridge application is an established technique without surgery. In cases where the abutment teeth are compromised, they will need to be treated and recontoured appropriately.
By applying a single block, daily hygiene may be more difficult to perform. Daily use of super floss interdental brush or floss will be necessary. It is important to maintain healthy abutment teeth.
Veneers
Veneers are thin ceramic foils that are cemented onto the outer (buccal) surface of the teeth.
The natural teeth are properly prepared, with surface filing used to create the space needed to accommodate the right-sized veneers. This allows the veneer to be thick enough so that it does not break, and once cemented, the tooth is the same size as the natural teeth.
Other types of fixed prostheses
Inlay
Is applied to posterior teeth (molars and premolars) when they have lost more than half of their crown. It is a minimally invasive technique that allows the part of the missing tooth to be reconstructed in the laboratory and then cemented onto the remaining part of the specially prepared tooth, retaining much of its healthy structure.
Maryland Bridge
This is a special type of bridge indicated in cases of single-element loss in the anterior area of the dentition. It is bonded to the inside of the abutment teeth with micro-alignments. It is a simple, fast, aesthetically very good prosthetic intervention. In 15 days it is possible to have one's tooth back.
It can be an alternative to an implant, especially if there is a lack of bone.
California Bridge
Has the same characteristics as the Maryland Bridge and is used in the posterior area of the dentition. Micro-alignments are bonded into the chewing part. The California Bridge can also be an alternative to the implant, especially in cases of lack of bone.
The stages of the pathway
Imprint and analysis
The impression, analog or digital, is used to pogettare the "study model" to analyze what the patient's mouth situation is like. From the analysis of the impression, the first temporaries can be designed and fabricated.
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Final imprint
After the expected results have been obtained and teeth and gums are in optimal condition, one can proceed with taking the final impression, the one on which the permanent prosthesis will be built. In the case of an analog impression, high-performance and precise materials (silicones) are used. For digital impressions, on the other hand, an intraoral scanner (specific camera) is used. The goal is to obtain an exact copy of the teeth and gums present in the mouth. The dental technician uses the impression to build the precision model on which he or she will then make the final work.
3
Prosthesis trial
The trial is necessary to verify accuracy, functionality and aesthetics of the prosthesis. The temporary is removed, the prosthesis is inserted, and, together with the patient, the result is evaluated and whether any changes are needed. If necessary, additional impressions are made. The provisional is reassembled to give the patient maximum comfort while waiting for the final delivery.
5
Resin crown insertion (temporary)
The teeth are prepared for the insertion of the resin crown. Although made to size, the crown must be adapted with specific resins to these preparations (relining). The clinician defines the time required for the temporary to produce the desired effects. Checkups are necessary during the period.
2
The making of the prosthesis
The dental technician makes the precise "heart" of the prosthesis using biocompatible materials (zirconia, ceramic, disilicate). This "core" must fit perfectly to the margin of the tooth and gingiva. At this point, the tooth is 90% completed for the first try-in.
4
Final proof and delivery
The dental technician completes the prosthesis on the indications received. If necessary, a second trial is made. Otherwise, the finished work is delivered. After the removal of the provisional, the final prosthesis is cemented in, often permanently but sometimes with temporary cement to allow for a better fit. After about 10 days, an initial check is made to verify proper closure and function.
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Clinical cases
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28 ott 2021
Nicole A.
Ci tornerò sicuramente!
Ambiente accogliente, pulito e team professionale, specializzato e preparato. La tecnologia del laser, che non conoscevo, è una cosa pazzesca: mi è stata curata la carie ed io non ho sentito nulla. Prezzo giusto per il servizio. Ci tornerò sicuramente!
3 ott 2023
Giuseppe E.
Tutti i medici molto preparati e disponibili
Che dire è più di 30 anni che vengo in questo centro significa che mi trovo molto bene . Tutti i medici molto preparati e disponibili
3 mag 2022
Maurizia L.
Andriolo sempre una garanzia
Da anni mi affido ad Andriolo per la cura dei denti di tutta la mia famiglia... professionali, disponibili, prezzi giusti... non li cambierei mai!