If you are having a decayed or damaged tooth there are many options through which you can have them repaired. A dental filling, inlays, onlays are some kind of dental restoration options. So know your options well before making a decision.
This would be recommended by doctors when the conventional dental filling is not enough for a large area of damage. It is used if the repair is needed in the back teeth chewing surface. You can have your inlay made from either gold or porcelain and would also allow you to bite and chew normally. It would also provide the strength and structure required to last long. It helps in holding up the rest of the tooth together.
It there is substantial decay of tooth then onlay is suggested and it can also be made from either gold or porcelain. Like inlays, this is also recommended when repairing is needed in the chewing surface of the back teeth. It is ideal when the raised points are to be treated on the outer edges of the tooth and also for one or more damaged cusps.
The whole process could take more than one sitting as in the first, the impressions would be taken which are then sent to the dental laboratory for the gold inlay/onlay. In the case of porcelain, it can be completed in one sitting as they can be made using special machines in order to shorten the waiting period.
This is used when the area that is to be repaired is smaller as compared to the inlay and onlay. Nowadays, the filling can be designed according to the color of your teeth so that it would look natural. These fillings are proved to have a great cosmetic result and can last for five years till replacement. This process does not take much time and is completed in one sitting.
Now that you are aware of the difference, it would be easy for you to make a decision and know the results as well.