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Dental Tissue Variations and Anomalies

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Questions and Answers

What is the main cause of dental anomalies according to the text?

Heredity, metabolic dysfunction, or mutations (correct)

Physical or chemical trauma

Environmental conditions

Nutritional deficiency

Which of the following is NOT a type of variation in enamel mentioned in the text?

Enamel dysplasia

Enamel hypoplasia

Enamel hypocalcification

Enamel erosion (correct)

What is the main symptom of amelogenesis imperfecta according to the text?

Inhibits enamel formation, leaving small pits or grooves at crown levels

Hypocalcification of a single tooth, typically maxillary incisor

Discoloration ranging from white spots to brown spots, sometimes with pits

Enamel is thin, stained yellow and brown, easily fractures (correct)

What is the primary cause of enamel fluorosis according to the text?

Excessive fluoride in tooth structure Signup and view all the answers

What is the main cause of focal hypocalcification according to the text?

Local infection or trauma Signup and view all the answers

Which of the following is NOT a possible cause of enamel hypoplasia mentioned in the text?

Bacterial infection Signup and view all the answers

What is the primary characteristic of dentinogenesis imperfecta?

Discolored teeth ranging from grey to yellow Signup and view all the answers

What is the term used to describe the complete absence of teeth from birth?

Anodontia Signup and view all the answers

Which of the following is the most common type of supernumerary (extra) tooth?

Mesiodens Signup and view all the answers

Which permanent tooth is the second most likely to be congenitally missing, after the third molars?

Maxillary lateral incisors Signup and view all the answers

What is the term used to describe an enamel-covered tubercle projecting from the surface of a tooth?

Dens evaginatus Signup and view all the answers

Which of the following conditions involves the tooth crown's outer surface invaginating or turning inward before mineralization?

Dens invaginatus Signup and view all the answers