Stomatognathic system

Insights into the complexity of the mouth and jaw functions

The stomatognathic system, often referred to as the masticatory system , is a complex and fascinating unit within the human body. It includes not only the structures associated with the oral cavity, but also those related to food intake, speech formation and breathing.

In this blog post, we take you on a detailed journey through the stomatognathic system to understand how these diverse components work together and what role they play in our health.

Anatomy of the stomatognathic system

Let's start with the anatomy of this complex system. The stomatognathic system consists of several components: the teeth, the periodontium (the supporting tissue of the teeth), the oral mucosa, the jaw bones, the temporomandibular joints, the masticatory muscles as well as the nerve and blood vessel supplies.

  • Teeth: Each tooth is unique in its shape and function. The teeth are responsible for grinding food and play an important role in the aesthetics of the face.
  • Periodontium: The periodontium consists of the gums, the dental cementum, the root membrane and the alveolar bone. It supports the teeth and ensures that they are firmly anchored in the jawbone .
  • Oral mucosa: the oral mucosa is the protective layer inside the mouth. It moisturises the oral cavity, protects against infections and helps with food intake.
  • Jaw bone: The upper and lower jaws form the foundation for the teeth and play a key role in the shape of the face.
  • Jaw joints: The jaw joints connect the lower jaw to the skull and enable movements such as opening and closing the mouth, chewing and speaking.
  • Masticatory muscles: Various muscle groups are responsible for the movement of the jaw and thus enable chewing and speaking.
  • Nerve and blood vessel supply: a comprehensive supply of nerves and blood vessels is essential for the functionality and health of the stomatognathic system.

Functions of the stomatognathic system

The stomatognathic system has four main functions: chewing, speaking, swallowing and breathing.

  • Chewing: the grinding of food is the first step in digestion and is essential for the absorption of nutrients. The chewing muscles and jaw joints play a central role in this .
  • Speech: Articulation is made possible by the movement of the jaw, tongue and lips. Disorders in the stomatognathic system can therefore lead to speech difficulties .
  • Swallowing: the swallowing process is a complex process involving several structures of the stomatognathic system. It is important for transporting food and fluids into the oesophagus.
  • Breathing: Although the nose and throat are primarily responsible for breathing, the oral cavity also plays a role, especially if nasal breathing is restricted.

Diseases of the stomatognathic system

Like any other system of the human body, the stomatognathic system is also susceptible to various diseases:

  • Caries: The destruction of tooth substance by acids produced by bacteria in the dental plaque is one of the most common dental diseases.
  • Periodontitis: An inflammation of the periodontium that can lead to tooth loss if left untreated.
  • Temporomandibular joint disorders: malfunctions of the temporomandibular joints can cause pain and restricted movement.
  • Malformations: misalignments of the teeth or jaws can lead to an impairment of function and aesthetics.

Diagnostics and treatment

Various diagnostic methods are available at , including clinical examination, x-rays, computed tomography (CT) or magnetic resonance imaging (MRI).

The treatment depends on the respective disease and can range from dental measures to orthodontic corrections to surgical interventions. Interdisciplinary collaboration between dentists, orthodontists, oral surgeons and physiotherapists is often necessary to achieve optimal results.

Prevention and care

To prevent diseases of the stomatognathic system, daily oral hygiene and regular dental check-ups play an important role.


A balanced diet, abstaining from tobacco and excessive alcohol consumption as well as wearing a mouthguard during certain sports can also minimise the risk of injuries and diseases.

Conclusion

The stomatognathic system is a marvel of nature, which fulfils a multitude of vital functions. With a better understanding of its complexity and appropriate care, we can prevent many diseases and significantly improve our quality of life.


Take the time to look after this fascinating system - your body will thank you for it!