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- $Unique_ID{BRK03652}
- $Pretitle{}
- $Title{Dentin Dysplasia, Coronal}
- $Subject{Dentin Dysplasia, Coronal Anomalous Dysplasia of Dentin Coronal
- Dentin Dysplasia Coronal Dentine Dysplasia Dentin Dysplasia, Type II Dentine
- Dysplasia, Type II Pulp Stones Dentin Dysplasia, Radicular Dentinogenesis
- Imperfecta (Opalescent Dentin) Pulpal Dysplasia}
- $Volume{}
- $Log{}
-
- Copyright (C) 1988, 1989 National Organization for Rare Disorders, Inc.
-
- 505:
- Dentin Dysplasia, Coronal
-
- ** IMPORTANT **
- It is possible the main title of the article (Coronal Dentin Dysplasia)
- is not the name you expected. Please check the SYNONYMS listing on the next
- page to find alternate names and disorder subdivisions covered by this
- article.
-
- Synonyms
-
- Anomalous Dysplasia of Dentin
- Coronal Dentin Dysplasia
- Coronal Dentine Dysplasia
- Dentin Dysplasia, Type II
- Dentine Dysplasia, Type II
- Pulp Stones
- Pulpal Dysplasia
-
- Information on the following disorders may be found in the Related
- Disorders section of this report:
-
- Dentin Dysplasia, Radicular
- Dentinogenesis Imperfecta (Opalescent Dentin)
-
- General Discussion
-
- ** IMPORTANT **
- The information contained in the Rare Disease Database is provided for
- educational purposes only. It should not be used for diagnostic or treatment
- purposes. If you wish to obtain more information about this disorder, please
- contact your personal physician and/or the agencies listed in the "Resources"
- section of this report.
-
- Coronal Dentin Dysplasia is a genetic disorder characterized by brownish-
- blue opalescent baby teeth and permanent teeth that appear normal. The hard
- calcified tissue beneath the enamel (dentin) is the main substance of the
- teeth. The baby teeth in children affected by this disorder contain
- obliterated pulp chambers and reduced root canals. Permanent teeth also have
- abnormalities.
-
- Symptoms
-
- Coronal Dentin Dysplasia is characterized by brownish-blue opalescent baby
- teeth. Later, permanent teeth appear normal. On X-rays, the baby teeth show
- obliterated pulp chambers and reduced root canals. The permanent teeth
- contain flame-shaped pulp chambers often with an extension reaching into the
- root, and numerous pulp stones. Root formation in the permanent teeth is
- usually normal. The baby teeth wear away (abrade) rapidly. Premature loss
- of teeth may occur slightly more often than normal.
-
- Causes
-
- Coronal Dentin Dysplasia is an autosomal dominant inherited disorder. (Human
- traits including the classic genetic diseases, are the product of the
- interaction of two genes for that condition, one received from the father and
- one from the mother. In dominant disorders, a single copy of the disease
- gene (received from either the mother or father) will be expressed
- "dominating" the normal gene and resulting in appearance of the disease. The
- risk of transmitting the disorder from affected parent to offspring is 50%
- for each pregnancy regardless of the sex of the resulting child.)
-
- Affected Population
-
- Coronal Dentin Dysplasia is a rare disorder affecting males and females in
- equal numbers.
-
- Related Disorders
-
- Symptoms of the following disorders can be similar to those of Coronal Dentin
- Dysplasia. Comparisons may be useful for a differential diagnosis:
-
- Radicular Dentin Dysplasia is a genetic disorder characterized by
- atypical formation of the hard calcified tissue which forms the major part of
- the tooth (dentin). The teeth lack pulp chambers or have half-moon shaped
- pulp chambers in short or abnormal shaped roots. Tooth color is usually
- normal. (For more information on this disorder, choose "Radicular Dentin
- Dysplasia" as your search term in the Rare Disease Database.)
-
- Dentinogenesis Imperfecta (Opalescent Dentin) is inherited as an
- autosomal dominant hereditary disorder. This disorder is characterized by
- bluish-brown or brown opalescent baby and permanent teeth. The tooth enamel
- breaks and wears off easily. In adults, only roots may remain. X-rays
- usually show the absence of dental pulp chambers and root canals. (For more
- information on this disorder, choose "Dentinogenesis Imperfecta" as your
- search term in the Rare Disease Database.)
-
- Therapies: Standard
-
- Coronal Dentin Dysplasia may be treated by scraping (curettage) around the
- tips of the roots, and filling these root tips with a dental amalgam
- (retrograde amalgam seal), or by more conventional root canal therapy.
- However, preventive dental care provides the best available means of
- maintaining the teeth.
-
- Genetic counseling is recommended for families of children with Coronal
- Dentin Dysplasia.
-
- Therapies: Investigational
-
- This disease entry is based upon medical information available through June
- 1988. 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.
-
- Resources
-
- For more information on Coronal Dentin Dysplasia, please contact:
-
- National Organization for Rare Disorders (NORD)
- P.O. Box 8923
- New Fairfield, CT 06812-1783
- (203) 746-6518
-
- National Foundation for Ectodermal Dysplasia
- P.O. Box 114
- Mascoutah, IL 62258
- (618) 566-2020
-
- NIH/National Institute of Dental Research
- 9000 Rockville Pike
- Bethesda, MD 20892
- (301) 496-4261
-
- For genetic information and genetic counseling referrals, please contact:
-
- March of Dimes Birth Defects Foundation
- 1275 Mamaroneck Avenue
- White Plains, NY 10605
- (914) 428-7100
-
- Alliance of Genetic Support Groups
- 35 Wisconsin Circle, Suite 440
- Chevy Chase, MD 20815
- (800) 336-GENE
- (301) 652-5553
-
- References
-
- This report is based on outlines prepared by medical and dental students
- (1984-1986) at the Medical College of Virginia for their course in human
- genetics.
-
- A SCANNING ELECTRON MICROSCOPIC STUDY OF DENTIN DYSPLASIA TYPE II IN
- PRIMARY DENTITION: J.R. Jasmin, et al.; Oral Surg (July 1984: issue
- 58(1)). Pp. 57-63.
-
- DENTINAL DYSPLASIA: A CLINICOPATHOLOGICAL STUDY OF EIGHT CASES AND REVIEW
- OF THE LITERATURE: N.E. Steidler, et al.; British Journal Maxillofac Surg
- (August 1984: issue 22(4)). Pp. 274-286.
-
-