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Questions and Answers
Which type of dentinogenesis imperfecta is associated with osteogenesis imperfecta and affects both dentitions?
What is the prevalence of Dentin dysplasia type I?
What is the main anomaly of osteogenesis imperfecta?
Which type of dentin dysplasia affects mainly permanent teeth and causes shortening of roots?
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What is the organic matrix of dentine formed by?
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What is the prevalence of Dentinogenesis imperfecta?
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Which type of dentin dysplasia mainly affects crowns of deciduous teeth and resembles DGI-II?
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Which of the following is true regarding Dentinogenesis imperfecta and dentin dysplasia?
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What is the prevalence of Dentinogenesis imperfecta?
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Which of the following is a characteristic of Dentinogenesis imperfecta Type I?
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What is the main anomaly in Osteogenesis imperfecta?
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Which of the following is true about Dentinal dysplasia type 1?
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What is the difference between Dentinogenesis imperfecta II and Dentinogenesis imperfecta Type I?
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What is the recommended treatment for Dentinogenesis imperfecta and dentin dysplasia?
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Study Notes
Developmental Defects of the Dentine: Inherited Conditions and Characteristics
- Dentinogenesis imperfecta and dentin dysplasia are autosomal dominant genetic conditions that affect dentin structure.
- These conditions can affect primary or both dentitions and are characterized by brown/blue or opalescent brown discoloration.
- The prevalence of Dentinogenesis imperfecta is 1:6,000 or 1:8,000, while Dentin dysplasia type I is 1:100,000.
- The organic matrix of dentine is formed by odontoblasts, and dentin-phospho-protein acts as a nucleator of hydroxyapatite crystals during mineralization.
- Most dentin defects are caused by mutations in genes encoding the major protein constituents of dentin.
- Dentinogenesis imperfecta Type I appears in conjunction with osteogenesis imperfecta, affects both dentitions, and has variable expressivity.
- Osteogenesis imperfecta is a group of autosomal dominant conditions with thinning of cortical bone and decrease in trabecular density as the main anomaly.
- Dentinogenesis imperfecta II is similar to DGI-type I, but without osteogenesis imperfecta, and affects mainly primary teeth.
- Dentinal dysplasia type 1 affects root dentine, causes shortening of roots, and affects mainly permanent teeth.
- Dentinal dysplasia type 2 mainly affects crowns of deciduous teeth, is autosomal dominant, and resembles DGI-II.
- There are some syndromes and systemic conditions associated with Dentinogenesis imperfecta, such as Ehler Danlos syndrome and Schimke immune-osseous dysplasia.
- Treatment for these conditions varies and requires a multidisciplinary team, including preventive measures, periapical pathology treatment, good oral hygiene, and unsatisfactory root treatment for obliterated root canals.
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Description
Test your knowledge on developmental defects of the dentine with this informative quiz! Explore the inherited conditions and characteristics of dentinogenesis imperfecta and dentin dysplasia, including their prevalence, discoloration, and genetic causes. Learn about the role of odontoblasts and dentin-phospho-protein in dentin mineralization, as well as the various types of dentin defects and their effects on primary and permanent teeth. Discover the links between dentin defects and conditions such as
