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Dentin Dysplasia Type II

National Organization for Rare Disorders, Inc.

Important
It is possible that the main title of the report Dentin Dysplasia Type II is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.

Synonyms

  • coronal dentin dysplasia
  • DD-II

Disorder Subdivisions

  • None

General Discussion

Dentin dysplasia type II, also known as coronal dentin dysplasia, is a rare genetic disorder that affects the teeth. It is characterized by abnormal development (dysplasia) of dentin. Dentin is the hard tissue found beneath the enamel that surrounds and protects the pulp and forms the major part of teeth. Affected children may exhibit brownish-blue discoloration of baby teeth (primary or deciduous teeth) and obliteration of the pulp chambers. Permanent teeth are usually unaffected or only mildly affected. Dentin dysplasia type II only affects the teeth. The disorder is caused by mutations of the DSPP gene.

Dentin dysplasia type II belongs to a group of disorders known as the hereditary dentin disorders. In 1973, a physician and his colleagues defined five disorders characterized by inherited dentin defects (Shields classification). Many physicians have noted that the Shields classification is out of date. As new research reveals genetic mutations and better defines these disorders, a new classification system will be warranted. Unfortunately, the current understanding of these disorders is insufficient to allow the creation of this updated classification.

Resources

March of Dimes Birth Defects Foundation
1275 Mamaroneck Avenue
White Plains, NY 10605
Tel: (914)997-4488
Fax: (914)997-4763
Tel: (888)663-4637
Email: Askus@marchofdimes.com
Internet: http://www.marchofdimes.com

NIH/National Institute of Dental and Craniofacial Research
Building 31, Room 2C39
31 Center Drive, MSC 2290
Bethesda, MD 20892
USA
Tel: (301)496-4261
Fax: (301)480-4098
Tel: (866)232-4528
Email: nidcrinfo@mail.nih.gov
Internet: http://www.nidcr.nih.gov/

Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311
TDD: (888)205-3223
Internet: http://rarediseases.info.nih.gov/GARD/

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email orphan@rarediseases.org

Last Updated:  1/14/2011
Copyright  1988, 1989, 2001, 2011 National Organization for Rare Disorders, Inc.

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