Crown & Bridge - JayDentalCare

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FIRST STEP

DIAGNOSTICS AND PREPARATION OF THE TREATMENT PLAN.

The first appointment covers a consultation, including:

  • Dental examination.
  • A pantomographic image of the teeth.
  • A digital image of the teeth.
  • Smile analysis.

A patient’s smile is analysed which is a starting point for preparing a treatment plan and a cost estimate including a precise list of teeth requiring crows.

SECOND STEP

TOOTH OR TEETH DRILLING, MAKING A DENTAL IMPRESSION, COLOUR MATCHING, PREPARING A TEMPORARY CROWN.

The second appointment is key because it is during this visit the dentist will drill one or more teeth for crown fitting. During tooth preparation it may be found that the root canal treatment is required in order to avoid any complications later. Afterwards a dental impression is made.

An accurate tooth impression is crucial for a successful prosthetic treatment as it ensures a restored tooth does not look different to the other teeth.

To prepare the impressions, UNIDENT UNION Dental Spa uses top quality materials. These are the only materials available in the market offering the best, unrivalled detailed impression accuracy. A prosthetic laboratory processes the impressions and produces perfectly fitted prosthetic crowns with maximum tight-fitting edges.

THIRD STEP

FITTING AND CEMENTING THE CROWN OR A PROSTHETIC BRIDGE.

During the last appointment, the dentist fits and cements the crown or the bridge. In complicated and aesthetically demanding cases, the fitting is performed during a separate appointment, but most often a crown or a bridge is sufficiently prepared and ready for immediate cementing.

 FULLCERAMIC CROWNS

  1. High aesthetics and natural translucency of full-ceramic crowns gives teeth lifelike quality.
  2. They produce no irritation or allergies. Metal alloys, used in traditional prosthetics, may be subject to corrosion resulting in allergic reactions. In case of full-ceramic reconstructions, no such side effects occur as zircon (zirconium oxide) is fully biocompatible, i.e. neutral to body tissue.
  3. Highly hygienic. Studies have shown that zircon surface develops significantly less bacteria then enamel, cement or any other reconstruction material. This is due to perfectly smooth surface and electrostatic influence of the ceramic cast.
  4. A precise making of a crown means a perfect fit. An ideal adherence of the inner crown surface to the hard tissue of the tooth is achieved due to the use of computer technology at every stage of crown making – CAD/CAM technology.

CAD stands for Computer Aided Design and CAM stands for Computer Aided Manufacturing.

The use of CAD/CAM technology and of zirconium oxide account for top quality results in prosthetics. The system captures and stores screen images of the tooth, crafts a 3D design restoration and then laser-cuts its elements from the material. The whole process is computer-guided, with the help of design software helping to eliminate a large number of human errors.

  1. Broad application. The properties of zirconium oxide allow the reconstruction of not only a single tooth but also of a group of teeth, in the form of bridges. It also allows rather extensive implant joints or crown-root inserts used in reconstructing dead teeth treated endodontically.

CAD/CAM

The use of CAD/CAM technology has allowed the fabrication of ceramic restorations efficiently and with predictable results. Lithium disilicate is a type of glass ceramic material that can be used for the elaboration of laminate veneers, being monolithic restorations which require characterization through a covering ceramic in order to achieve acceptable esthetic results. The next case report shows a predictable clinical protocol for the rehabilitation of the anterior teeth through the preparation of CAD/CAM veneers (e.max CAD, Ivoclar Vivadent, Liechtenstein) which have been characterized by a nanofluorapatite ceramic (e.max Ceram, Ivoclar Vivadent, Liechtenstein) through the layering technique.

Introduction

Glass ceramic materials have been widely used to restore enamel loss due to its mechanical and optical properties [1, 2]. This restorative material, used for the indirect method, can be processed by traditional laboratory procedures, which is a highly sensitive technique or CAD/CAM technology [3, 4].

The use of CAD/CAM nowadays is a useful tool that allows digital impression taking, digital design as part of the treatment planning, and the elaboration of monolithic restorations for ceramic materials, used most recently in the field of ceramic veneers [5–7].

For the elaboration of ceramic laminate veneers, lithium disilicate is a ceramic reinforced material which can be processed by CAD/CAM systems or through the press technique. In case of CAD/CAM, this material is presented as blocks of lithium metasilicate in a precrystallized state which contains cores of lithium metasilicate and disilicate, reducing its flexural strength to 130 ± 30 Mpa. This allows the milling process, in which the shape of the restoration is obtained. Then, the ceramic is recrystallized at 850°C for 20 to 25 minutes. During this procedure, the lithium metasilicate dissolves and the lithium disilicate crystalizes, obtaining the final translucency of the restoration. Finally, the quantity of crystals and the flexural strength increases to 70% in volume and to 360–400 Mpa, respectively [3, 8].

At this point, the final restoration may not have the ideal tooth optical properties. In this case, there are three methods for the characterization of the incisal third: (a) cut-back technique; (b) staining technique; and (c) layering technique.

The present case report shows a step-by-step procedure of CAD/CAM lithium disilicate veneers characterized with a final layering technique with nanofluorapatite ceramic.

FULLCERAMIC CROWNS

  1. Local anesthesia is used on the area of the treatment
  2. After the patient is numbed, the first step is the preparation and reduction of the tooth.
  3. The dentist takes an impression of the abutment and the surrounding teeth.
  4. Until the all ceramic crown is prepared, a temporary crown is placed onto the tooth.
  5. The all ceramic crown is prepared within a couple of days at our laboratory with CAD-CAM technology.
  6. The dentist applies the all ceramic crown onto the abutment and fixes it with a special dental cement.

Metal

There are several metals that can be used in dental crowns, including gold, palladium, nickel and chromium. Metal crowns rarely chip or break, last the longest in terms of wear down and only require a small amount of your tooth to be removed. They can also withstand biting and chewing forces. The metallic color is the main drawback of this type of crown. Metal crowns are a good choice for out-of-sight molars.

Zirconia crown

Dental crowns are caps that cover a tooth or a dental implant. … Another option that’s now available for some people is a zirconia crown. Zirconia crowns are made from zirconium dioxide, a very durable type of metal that’s related to titanium, although it’s categorized as a type of ceramic crown

What is Zirconia?

Zirconium is a chemical element with atomic number 40 and symbol ‘Zr’ in the periodic table. It is known for its hardness, resistant to corrosion and various other properties similar to steel. It can’t be found in pure state in nature. However it can be obtained through complex physico-chemical process. In the periodic chart, it is located next to Titanium (Ti). For this reason their properties are very similar.

What is a Zirconia Crown?

This type of crown is made from zirconia, a very strong material which is compatible with the human body. Zirconia is used in many other medical applications such as artificial joints and is known for its strength and durability.
Zirconia is a type of crystal which is long lasting and indestructible.
Plus there is no fear about the body rejecting zirconia or displaying an allergic reaction to it. It is safe to use and preferred by many people to porcelain fused to metal crowns.
In addition to the advanced specialty dental services we also have best modern in-house dental laboratory that enables us to provide you the finest prosthodontic dental care by rendering you the best zirconia crown options available. At Jay dental clinic we take pride in presenting you to the best dental treatments in Patna and with our wide range of zirconia crowns, you are sure to meet the highest dental care.

Advantages of a Zirconia Crown

Strength: zirconia crowns last longer than other types of crowns.
Aesthetics: these crowns have an attractive translucent colour which blends in well with the other teeth.
Retain more of the existing tooth: Minimal preparation is required which means more of the original tooth is preserved. This is useful if the crown needs to be removed.
So, a good choice if you are looking for a strong, long lasting and visually appealing crown. They are ideal at covering signs of damage or staining as well as helping to maintain the function of the tooth.

At Jay dental care  Hospital we understand your expectations and concerns towards esthetics and durability and hence we constantly strive to provide you the best cosmetic care available.

Disadvantages of a Zirconia Crown

The disadvantages of zirconia are negligible but yet worth mentioning.
The tough, durable nature of a zirconia crown can work against it as well as in its favour. This material has an abrasive quality which can cause friction against the root of the tooth as well as other teeth.
It must be highlighted that dental specialist in the field of prosthodontics are trained and qualified to make individual assessment of each patient and customize treatment plan using zirconia based prosthetics that can cater your functional and aesthetic demands. Hence at Jay dental care hospital, a comprehensive diagnostic assessment by our team of Prosthodontist must be done. We are one of the famous dental clinics which has an in-house Prosthodontic and implantology services to provide the necessary multidisciplinary approach your condition may need.

How is a Zirconia Crown Cemented?

The process is similar to that for other crowns. It involves two stages: preparation of tooth structure (first stage) and the fitting of the crown (second stage).
The first stage is where your teeth are assessed and measured for a crown. Our highly qualified and vastly experienced Prosthodontist will discuss the procedure with you before preparing your affected tooth. This preparation involves the cleaning of the tooth before reshaping (which reduces its size) with a small drill.
A small sliver of tooth is removed under a local anaesthetic which ensures that the tooth is the correct shape for the crown. A mould is made with dental putty which you will be asked to bite into. This is used as a guide for the production of your new crown at our dental laboratory which has the best standards of technical equipments with high precision.
The second stage is where you will be fitted with your new crown. The tooth which will receive this crown is roughened with a special dental acid which scratches the surface and increases the bond between crown and tooth.

The crown is then fitted onto your tooth. The dentist will check its appearance and fit before cementing it into position. It is then given a final polish.

zirconia crown must be cared for in the same way as your natural teeth. .
At Jay dental care we lay emphasis in not just choosing the right zirconia property but also on its long term maintenance. With our systematic and well organized periodic recalls we monitor the service and integrity of your prosthesis. With our best dental quality and a high profile team of dentists, we commit our dental services to the highest standards. At Jay dental care your comfort and satisfaction is our highest priority.

Replacement with metal-free/full zirconia restorations possible?

Replacement of conventional (precious) metal-based restorations with zirconia is entirely possible, but should only be carried out by dental specialist who have undertaken special training in this field.

Aesthetic comparison of zirconia vs. Conventional metal based crowns?

Zirconia framework is translucent and far superior to the opaque appearance of metal-ceramic. It delivers far more superior natural appearance with the adjacent teeth in comparison to the traditional metal based crowns.
Hence it is highly indicated for the replacement of front teeth for its esthetic properties while suggested for back teeth primarily owing to its high strength and durability.

How does cost compare with metal-ceramic?

Zirconia restorations are equal to or marginally more expensive than metal-ceramic restorations.
At Jay dental care our team of prosthodontic specialist will customize the best dental treatment tailor-made for your case following detailed assessment of the risk and complications expected by the treatment plan and other underlying factors you may have.
Our team of dentist will provide you with the best dental treatment plan that is feasible and affordable by you. With our treatments schemes oriented at a conservative end we strive to provide you the highest quality of dental treatment at cheapest dental fares available.
At Jay dental care we emphasise the importance of cheap affordable dentistry to maximize our dental services to all.

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