Crowns and Bridges
The crown of a tooth is that part which is visible in the mouth. An artificial crown completely covers a prepared tooth above the gum line and protects it.
A bridge fixes a replacement tooth (teeth) to the natural teeth on either side of the gap. Some bridges have crowns at each end, others are fixed to the surface of the teeth next to the gap.
Crowns may be placed on heavily filled, root canal treated or damaged teeth. Since blood circulation ceases in thesr teeth and they become dry and brittle. If the tooth fractures in such a way that a post can be inserted, the crown should be prepared after the post is cemented.
In preparation for the treatment we take an x-ray of the abutment teeth. Some pre-treatments might be necessary before tooth preparation like root canal therapy, post and core or buildup. Upon completition of these pre-treatments we prepare the tooth. The procedure takes place under local anaesthesia.
Steps of preparing a tooth for a crown
This usually requires two to three visits to the dentist. The first step involves examining and preparing the tooth, on the second happens the try in of the crown(s) and the third visit involves the placement of the permanent crown(s).
At the first visit your dentist may take x-rays to check the roots of the tooth receiving the crown and of the surrounding bone. If the tooth has extensive decay or if there is a risk of infection or injury to the tooth's pulp, a root canal treatment may first be performed. Before the process of making your crown your dentist will anaesthetize (numb) your tooth and the gum tissue around the tooth. Next, the tooth receiving the crown is drilled down along the chewing surface and sides to make room for the crown. After reshaping the tooth, your dentist will take an impression of the tooth. Impressions of the teeth above and below the tooth will also be taken to make sure that the crown will not change your bite. The impressions are sent to a dental laboratory where the crown will be manufactured. During this first office visit you will receive temporary crown to cover and protect the prepared tooth while the crown is being made.
On your second visit you will have a try in of your premanent crown. On this visit the opportunity is still there to make adjustments to your permanent crown as together with the dentist you may check the fit and color. If all adjustments are made, on your third visit your permanent crown will be cemented in place.
Porcelain-fused-to-metal dental crowns can be color matched to your adjacent teeth. When they are made, the dental technician first makes a metal framework that fits over the tooth. A porcelain coating is then fused to this metal giving the crown a white tooth-like appearance. These crowns can be a good choice for front or back teeth.
Porcelain fused to Titanium crowns
The titanium alloy is a natural material and it is the same quality as gold alloy. Titanium ceramic crown is a great alternative for people who are allergic even to gold. Titanium alloy is astoundingly light and insulates hot and cold well. It is fully tolerated by the human body.
Zirconium Oxide crowns
Zirconium oxide is aesthetic, strong, pure, biocompatible and capable of being used for single and long span dental bridgework in the incisor and molar regions.. It primarily stands out due to its high break resistance. All-ceramic restoratios have an excellent insulating effect and you won’t have to worry about any unpleasant sensations with hot or cold meals and drinks. Cercon ceramics require no metal framework. This offers a great advantage for your restoration’s aesthetics because the milled zirconium oxide substructure is white in colour. Make no compromises in aesthetics, compatibility, durability and function. With the additional advantage of having the maximum stability thanks to its strength in the thin sections, Cercon restorations can be well integrated to follow the natural contours of your mouth. In general, a harmonious overall appearance can be achieved that makes your new teeth look absolutely natural.