Etiology-Based Dental and Craniofacial Diagnostics by Kjær Inger

Author:Kjær, Inger
Language: eng
Format: epub
ISBN: 9781118912126
Publisher: John Wiley & Sons, Inc.
Published: 2016-03-26T00:00:00+00:00

Dysplasia in Ectodermal Tissue

There are many different types of ectodermal dysplasia and the agenesis pattern can differ accordingly.

Multiple agenesis of primary and permanent teeth occurs frequently in patients with anhidrotic ectodermal dysplasia (Figure 9.20). The agenesis pattern in the permanent dentition may be observed in only one jaw (see Figure 9.20) but it can also be characterized by agenesis within fields, such as the molar or premolar fields, or it may be sporadic. The teeth present are often small in size and with deviant morphology. Also, the condition incontinentia pigmenti is associated with tooth agenesis. In this condition, the pattern of agenesis is often asymmetrical and affects teeth which are normally stable in their occurrence (Figure 9.21). It is uncertain whether the teeth ever were formed in the initial stages or whether they are formed and then disintegrated during later development. This disintegration has been seen in prenatal ectodermal dysplasia (see Figure 4.6).

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