Things You Need To Know About Tuberosity Reduction

A protrusion behind last molar in the upper jaw is most commonly referred to as tuberosity. This protrusion is covered by the gum. The process of reduction in this protrusion is known as Tuberosity Reduction.

Here, it would be worth mentioning the purpose of tuberosity reduction. Tuberosity is never an issue if you have complete set of teeth in your mouth. However, the tuberosity may hang down from the level of other teeth when you lose teeth from upper jaw. In this scenario, it may be pretty difficult for the denture to be fitted on the jaw. The denture can stay in play when it seals with the palate and jaw. An increased tuberosity can prevent the formation of that seal.

Here, it is worth mentioning that tuberosity reduction is becoming less common due to popularity of dental implants. Moreover, very few people lose their upper teeth in an amount which makes it critical for the dentures to be placed.

Nevertheless, the process of tuberosity reduction may still be required with the dental implantation. The reason is that it sometimes becomes difficult for the implantation to be carried out in the presence of increased tuberosity due to an awkward position of teeth. In this case, the tuberosity reduction can fix things pretty well.


The tuberosity reduction is done by an oral or maxillofacial surgeon. This surgery is done under the collaboration between surgeon and dentist who specializes in dentures.

In some people, the sinus cavity extends into the tuberosity. Hence, it is generally important for the surgeon to know about the position of your sinus cavity. This analysis is done with the dental of dental x-rays.

The surgeon may make an acrylic cast of your jaw. This cast formation can tell the dentist about the accurate amount of bone and tissue which needs to be removed. The formation of this cast is done using following steps.

  1. Making of an impression of your jaw
  2. Making of a plaster cast
  3. Grinding down of the tuberosity areas of that cast
  4. Forming a guide from that cast

The guide fits over your teeth just like a denture would. During the procedure, the surgeon will keep testing the mold on your teeth to make sure that accurate amount of bone and tissues are being trimmed.

The procedure

Procedure of tuberosity reduction is pretty easy. You will be given local anesthesia to numb the area. If your case is a little complicated or you have greater fear of this procedure, you may be given medicine through vein. As a result of this administration of medicine, you will feel drowsy. This is called intravenous sedation.

The procedure involves cutting and removal of extra gum tissues. In some cases, the bone underneath the gums may need to be trimmed. The surgeon will keep testing the cast to make sure that only required trimming is done.

After the procedure, you will not be able to eat or drink in the normal way for at least a few days. There may be swelling in the area. So, you need to be very careful about your diet and oral hygiene. Moreover, you will need to keep visiting your dentist to make sure that everything remains in good state.