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Tooth fillings and dental crowns are two of the most common ways of helping with the wear and tear of teeth over time, as well as the effects of tooth decay. There are a number of options, including composite and amalgam fillings, and gold or porcelain crowns. You can also have an inlay or an onlay, when neither a filling nor a crown is suitable. Your dentist will advise which particular solution will be best for you. The procedures are normally carried out using local anaesthetic and are generally not painful.
Tooth fillings and dental crowns are two of the most common ways of helping with the wear and tear of teeth over time, as well as the effects of tooth decay.
There are a number of options, so you will need to consult with your dentist in order to determine which particular solution will be best for you.
Dental fillings or restorations are used to fill in the cavities caused by tooth decay. The process of having a filling carried out will take place while you are awake, however, a local anaesthetic will be used to make sure you cannot feel the areas being worked on.
Your dentist will use a small drill to remove the parts of your tooth that are decayed or weakened. If necessary, a ‘liner’ may be used to cover the tooth to make sure there is no exposed nerve.
The material used for the filling may be amalgam or composite. Amalgam fillings are made of a mix of copper, tin and mercury. They are extremely hard wearing and can last for a couple of decades, if not more, with the right care.
Composite filings are tooth colored and are usually used for more visible, conspicuous teeth due to their more natural appearance. Modern improvements also mean that composite fillings can last as long as amalgam fillings but your dentist will talk through the options.
Another material used is glass ionomer cement. This restorative material can also benefit teeth by slowly releasing fluoride. They are generally used when the surface of the tooth is not used heavily in the bite.
The use of a local anaesthetic will ensure that the area of your mouth being working on is numb throughout. Though you may feel some pressure from the instruments being used, you will not experience any pain.
That said, for the anaesthetic to be administered, you will need an injection in your gums. This is not particularly painful, but for those who are concerned, the dentist may be able to use a numbing gel to take away the feeling from your gum before the injection.
If your filling comes out then you should contact your dentist as soon as possible and make an appointment to have the filling replaced. This will only be possible if there is still enough of your tooth left to support a new filling.
Dental crowns are covers or caps that fit over your natural teeth so as to protect and secure the remaining part of the tooth. They could be needed when a cavity is so large that a filling will not work, or because a tooth has been weakened significantly by tooth decay. The crown wraps around the whole natural tooth to help secure what remains of it. Crowns vary in color according to what they are made of. They could be gold or other metals, porcelain, ceramic or a mixture of materials. As crowns are made to fit over your teeth exactly, your dentist will take an impression of your tooth, which can be used to make your crown. This can take a couple of weeks and, while it is being prepared, you will need to wear a temporary crown. Your teeth may also need to be filed down slightly or otherwise treated before a crown can be fitted. Once your permanent crown is fitted you can expect it to last for many years, but again, it will require looking after and a proper dental hygiene routine. Modern cosmetic crowns can be very lifelike and can be used to replace the front teeth. They are however generally more expensive than conventional crowns.
Inlays and onlays provide a solution in between fillings and crowns – when a crown fitting is not possible without removing more of the healthy tooth, and a filling is not sufficient. They are more durable and usually last longer than fillings. Dental inlays and onlays are usually made of either gold or porcelain, the latter being used to match the color of more visible teeth.
An impression of your teeth will be taken to ensure that the inlay or onlay will fit perfectly over the cavity. For this reason, you will need to make two trips to the dentist and you will get a temporary filling to wear while the inlay/onlay is being readied. At the second appointment you will have it fitted, usually after a local anaesthetic has been administered.
The bleaching agents used in whitening treatments only work on natural teeth. Any fillings, crowns, veneers, inlays or onlays you have will be immune to the whitening process.