Dental Wear And Malocclusions

Dental Wear And Malocclusions

Dental enamel is produced only once by specialized cells during tooth formation. Once worn or damaged, the enamel cannot regenerate, and the damaged teeth must be repaired. The cause of wear should be checked if it can be identified to prevent it from happening again. These examples demonstrate the wear of teeth, which can occur for several decades in the presence of poorly articulated teeth. The following photos illustrate two people with a similar bite pattern (malocclusion) but 55 years of the age difference. Although it is not the same person, it demonstrates the effect that several decades can have on badly placed teeth.

POSSIBLE CONSEQUENCES OF MALOCCLUSIONS

  • malpositions of teeth and jaws create bad relationships between teeth during function;
  • if this condition persists for several years it can lead to prematureand excessive wear of the teeth;
Dental Wear And Malocclusions1
  • the crossbitesand teeth that bite related “end-to-end” are more likely to wear than other types of misalignments;
  • signs of dental wear can be seen early enough, even in children with temporary teeth;

CLINICAL CASE EXAMPLE – DENTAL MALPOSITIONS OFTEN CAUSE TOOTH WEAR DURING FUNCTION # 9125

Dental Wear And Malocclusions2

Even minor dental irregularities (malocclusion) can cause tooth wear during function and jaw movements. This 9-year-old boy is already showing signs of wear on the tips of his incisors.

EXAMPLE OF CLINICAL CASE – THE MALOCCLUSIONS OFTEN CAUSE TOOTH WEAR DURING FUNCTION # 9130

Because of an imbalance between the jaws, the teeth bite, and function in an “end-to-end” relationship. This causes wear and breakage at the edges of the anterior teeth in this 39-year-old woman. If these teeth are repaired, they will break again unless they correct their position in orthodontics.

CLINICAL CASE EXAMPLE – DENTAL MALPOSITIONS OFTEN CAUSE TOOTH WEAR DURING FUNCTION # 9135

Dental Wear And Malocclusions3
Dental Wear And Malocclusions4

Severe dental wear on the upper and lower incisors of a 44-year-old woman with significant malocclusion.

EXAMPLE OF CLINICAL CASE – THE MALOCCLUSIONS OFTEN CAUSE TOOTH WEAR DURING FUNCTION # 9140

Significant signs of wear associated with a dental malocclusion in a 37-year-old woman.

CLINICAL CASE EXAMPLE – DENTAL MALPOSITIONS OFTEN CAUSE TOOTH WEAR DURING FUNCTION # 9145

Example of “functional” wear in a 14 year old girl; 

(A) The upper canines are high and cannot play their protective role during the jaw movements. 

(B) When the mandible moves to the right (top photos) or the left, the side teeth come into contact

and start to wear out. 

(C) At the end of the movement, wear is visible on the end of the sides, which are already shortened.

OCCLUSION AND NORMAL FUNCTION

  • Compare the previous wear patterns with this normal occlusion (after orthodontic treatment) where

the teeth work ideally and minimize wear during the function. Find out more about normal occlusion and dentition. Although enamel is the hardest tissue in the human body and, despite having a very smooth appearance, microscopic evaluation reveals how porous and brittle the surface of the enamel can be. 

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