The dentition defects: classification by Kennedy


2018-03-19 06:21:32




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Change the sequence of the dentition can carry the violations of continuity and the unity of the teeth in the upper or lower jaw, and the reasons for this phenomenon can be quite different. This trauma and injuries, infectious diseases of the mouth, the lack of proper treatment of caries, resulting in complications.

Classification of defects of dentition by Kennedy

There are several ways to describe this pathology. The most common is classification according to Kennedy. It is based on the following conditions:

  • The first group – dentition restricted to two sides of the 5-th or 6-th tooth while chewing no crown;

classification by Kennedy

  • The second group – the tooth row shortened due to the lack of molars on the one side or the other;

classification of defects by Kennedy

  • The third group – chewing crown maintained, but there were no teeth in the side area;

classification of defects of dentition by Kennedy

  • The fourth group disrupted the structure of the front portion of the jaw, no canines or incisors.

the classification of Kennedy orthopedics

If used for diagnostic classification Kennedy, orthopedics involves the treatment of difficult, because if you have multiple abnormalities, the disease is assigned to a lower group. Because of this change and plan the prosthetics. The same group can include different clinical cases.

Causes of defects of teeth rows

There are several reasons that lead to the appearance of the problem (to eliminate them must be attributed the pathology to a specific group, which there is a classification by Kennedy):

  1. Congenital anomalies, in particular adentia (lack of teeth) due to illness of the mother during pregnancy, which are the rudiments of the teeth may be missing can also be errors in the structure of the enamel that is inherited.
  2. The Presence of harmful habits. In children, the use of pacifiers and bottle feeding, thumb sucking, in adults, the loss of teeth can lead the habit to crack nuts, for example pistachios.
  3. Dental Caries, if left untreated. Regular visits to the dentist will help to keep the dentition intact and sound.
  4. Inflammatory processes. In the formation of purulent inflammation of the tooth must be removed immediately. To this can lead to periodontitis, cysts, periodontitis and other dental diseases.
  5. Mechanical trauma, which is especially important in the age of 6-9 years. In this period there is a change of milk teeth at the root, and a strong blow can cause damage to the root.
  6. Childhood diseases such as rickets, pneumonia, acute respiratory infections, which appear during formation of teeth. They have a negative impact on the structure of the Central incisors.
  7. The Presence of lesions in the periodontium. If it is detected, you must immediately remove the teeth. Occur tumors can result from disorders of the thyroid gland, gastrointestinal tract, as well as with a lack of vitamins.

Symptoms defects

Classification of defects by Kennedy suggests that the problem occurs due to the loss of a tooth or its development. The characteristics depend on many factors:


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  • The exact location of the defect (this can be side or front teeth on the lower or upper jaw);
  • Parameters of the flaw;
  • The type of the defect (can be enabled or end);
  • Structure of bite;
  • The age of the patient;
  • State of the gums and teeth present;
  • The time since loss of teeth prior to treatment;
  • The cause of the defect.

To identify the defect, it is necessary to come on reception to the dentist, who will examine and determine the problem. The main complaints from patients who compel people to go to the doctor, are:

  • Malocclusion;
  • The inability to fully chew food;
  • Strain the jaw bone;
  • In some cases impaired.

The elimination of the defect depends on the group of diseases for which you need to use a certain pattern, and is most often used classification by Kennedy. Before the prosthesis or implant dentist certainly holds a professional dental cleaning, during which eliminates the decay and eliminate any inflammatory process.

Methods of prevention

A Grown man can take measures to prevent the occurrence of defects, to diagnose which will help the classification by Kennedy. The main enemy in this situation is dental caries, therefore, adequate oral hygiene and regular visits to the dentist. This also applies to children. Parents can ignore the oral hygiene of the child's baby teeth because they believe that they will fall out anyway and care not need. But it's not. Also, upon detection of malocclusion and supernumerary teeth they need time to heal. Ignoring any problems in your mouth can aggravate the situation and lead to tooth loss.

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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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