It is imperative to understand the types of teeth in your mouth to have the best oral health. Posterior teeth are some of these, and their role is vital and usually not fully appreciated until something goes wrong. These are the back teeth that do the heavy lifting in your mouth in terms of the grinding up of food and the overall functioning of the jaw.
What are Posterior Teeth?
Posterior teeth are the back teeth in your mouth, the premolars, and the molars. These teeth are found behind your canines, and they are designed to be used in grinding and crushing food. Adults normally contain eight premolars and twelve molars, constituting the bulk of your dental composition. Posterior teeth are broader and flatter with numerous cusps, unlike the front teeth, whose prime role is cutting and tearing.
The term posterior merely means “in the back,” in contrast to anterior (front) teeth. This is not a random placement, the posterior teeth are positioned where they can bring the greatest force of chewing, and where they are cushioned by powerful muscles of the jaw.
The Critical Role in Biting and Chewing
The posterior teeth are paramount in digestion, as they initiate the breakdown process that goes on in your stomach. These teeth have the ability to produce much more force than front teeth, as much as 200 pounds per square inch in some situations. It is this amazing power that enables them to pulverize hard foods such as nuts, uncooked vegetables, and meat.
Posterior teeth grinding enhances the surface area of food particles, hence easier to swallow and digest. When the posterior teeth are not functioning as they should, individuals usually have difficulties in eating some types of food which results in dietary limitation and eventually nutritional deficiency.
In addition to the apparent role of chewing, the posterior teeth have an important role in supporting facial height and jaw relationship. They offer the vertical proper bite alignment support and assist in the distribution of the chewing force balancing throughout the dental arch.
Common Posterior Dental Issues
Posterior dental issues are surprisingly common, often due to their location and function. They are more prone to decay and gum disease as these back teeth are more difficult to clean thoroughly. Posterior tooth surfaces have deep grooves and fissures that may trap food particles and bacteria and provide the perfect environment in which cavities may develop.
Posterior crowding is another frequent problem, especially when wisdom teeth emerge without adequate space. As a result of this crowding, teeth can move, overlap, or become impacted resulting in pain and alignment problems. The back of the mouth is a constricted area that is difficult to clean and care for, thus worsening any pre-existing issues.
Bruxism (grinding and clenching) is especially harmful to posterior teeth because they help to produce the chewing force. In the long term, it may cause worn surfaces, cracked teeth, and pain in the jaw. This pressure may also lead to the movement of the teeth towards the back, which alters the alignment of the bite.
Treatment Options and Orthodontic Considerations
Posterior tooth movement is frequently important in orthodontic treatment to provide ideal alignment of the bite. Posterior crowding can be utterly treated using teeth braces, which move teeth into desirable positions. Current orthodontic mechanics have the ability to control posterior tooth movements accurately, providing that the important teeth are positioned correctly, both functionally and aesthetically.
Posterior teeth are often complex to treat and may need special methods. They are more difficult to get to, and, because they help keep the bite balanced, any treatment needs to take into account the health of the whole dental system.
