Dental Disorders: Hard Tissue Abnormalities

Play an AI-generated podcast conversation about this lesson

What is the primary cause of Amelogenesis Imperfecta?

Defects in enamel matrix mineralization

Defects in dentin formation

Defects in the genes that encode enamel matrix proteins (correct)

Defects in tooth eruption

Which of the following genes is NOT involved in Amelogenesis Imperfecta?

Dentin Sialophosphoprotein (correct)

Tuftelin

Enamelin

AMELX

What is the classification of Amelogenesis Imperfecta based on?

Pattern of inheritance, type of defect, and appearance (correct)

Pattern of inheritance, type of defect, and age of onset

Type of defect, appearance, and tooth structure

Pattern of inheritance, type of defect, and tooth structure

What is the primary function of Enamel Matrix Proteins?

Formation of enamel matrix Signup and view all the answers

Which of the following is a characteristic of hereditary defects in enamel formation?

Affects both permanent and deciduous teeth Signup and view all the answers

What is the primary defect in H. enamel hypoplasia?

Problem in matrix formation Signup and view all the answers

Which of the following proteins is NOT involved in enamel matrix formation?

Collagen Signup and view all the answers

What is the name of the gene encoding amelogenin?

AMELX Signup and view all the answers

What is the primary cause of tooth color in Dentinogenesis Imperfecta?

Abnormality in dentin sialoprotein Signup and view all the answers

What is the characteristic of the crowns of teeth in Dentinogenesis Imperfecta?

Normal size with a constricted neck Signup and view all the answers

What is the reason for rapid loss of enamel in Dentinogenesis Imperfecta?

Due to poor support by abnormal soft dentin Signup and view all the answers

What is the characteristic of the roots of teeth in Dentinogenesis Imperfecta?

Short and stunted Signup and view all the answers

What is the characteristic of the pulp in Dentinogenesis Imperfecta?

Numerous pulp stones Signup and view all the answers

What is the characteristic of dentinal tubules in Dentinogenesis Imperfecta?

Fewer in number, widely spaced, larger in diameter than normal Signup and view all the answers

What is the characteristic of the enamel-dentin junction in Dentinogenesis Imperfecta?

Straight rather than scalloped Signup and view all the answers

What is the relation between Dentinogenesis Imperfecta and Osteogenesis Imperfecta?

Dentinogenesis Imperfecta is a subset of Osteogenesis Imperfecta Signup and view all the answers

What is the primary cause of internal resorption leading to a progressive resorptive process in the pulp chamber or root canals?

Precipitating factors such as infection or trauma Signup and view all the answers

What is the characteristic radiographic appearance of internal resorption?

Balloon-like dilatation of the canal Signup and view all the answers

What is the appropriate treatment for internal resorption to avoid perforation of the tooth?

Root canal treatment Signup and view all the answers

What is the most common location of external resorption?

Apical and mid portions of the root Signup and view all the answers

What is the characteristic radiographic appearance of external resorption?

Moth-eaten loss of tooth structure Signup and view all the answers

What is the primary cause of Turner's hypoplasia?

Local factor such as trauma or infection Signup and view all the answers

What is the term for defects in tooth structure that are hereditary or acquired?

Hard tissue defects Signup and view all the answers

What is the term for a severe form of dentinogenesis imperfecta?

Shell tooth Signup and view all the answers

Which component is noted for being involved in regulating the formation and mineralization of enamel?

Amelogenin Signup and view all the answers

Which type of Amelogenesis Imperfecta is associated with normal enamel matrix but defective mineralization?

Hypocalcification Signup and view all the answers

Which form of Amelogenesis Imperfecta leads to thin enamel with vertical pitted grooves?

Hypoplasia Signup and view all the answers

Which substance, when defective, typically leads to softer enamel and a rough surface texture?

Amelogenin Signup and view all the answers

What distinguishes hypomaturation from other types of Amelogenesis Imperfecta?

Normal thickness but soft enamel Signup and view all the answers

Which of the following types of Amelogenesis Imperfecta is often associated with small teeth and loss of contact points?

Hypoplasia Signup and view all the answers

Which form of Amelogenesis Imperfecta is associated with enamel that is frequently stained and prone to exogenous discoloration over time?

Hypocalcification Signup and view all the answers

Which protein is crucial for the initial mineralization and hardness of enamel but is typically removed during maturation?

Amelogenin Signup and view all the answers

Which stage of dental fluorosis involves yellowish or brown staining of the enamel?

Moderate Signup and view all the answers

What is disrupted due to increased fluoride levels leading to dental fluorosis?

Ameloblastic function Signup and view all the answers

Which histological feature is characteristic of dental fluorosis?

Defective calcified prisms and interprismatic substance Signup and view all the answers

Which enamel matrix protein is critical for the initiation of enamel mineralization?

Tuftelin Signup and view all the answers

What is another name for dental fluorosis characterized by pitted, opaque, brown staining?

Mottled enamel Signup and view all the answers

Which phase of amelogenesis is disrupted by excess fluoride, leading to dental fluorosis?

Secretory Signup and view all the answers

Which classification describes enamel that is grossly defective, brittle, and easily chipped away?

Severe Signup and view all the answers

Which protein plays a significant role in the framework formation of enamel?

Amelogenin Signup and view all the answers

Dental Disorders: Hard Tissue Abnormalities

Choose a study mode

Podcast

Questions and Answers

What is the primary cause of Amelogenesis Imperfecta?

Which of the following genes is NOT involved in Amelogenesis Imperfecta?

What is the classification of Amelogenesis Imperfecta based on?

What is the primary function of Enamel Matrix Proteins?

Which of the following is a characteristic of hereditary defects in enamel formation?

What is the primary defect in H. enamel hypoplasia?

Which of the following proteins is NOT involved in enamel matrix formation?

What is the name of the gene encoding amelogenin?

What is the primary cause of tooth color in Dentinogenesis Imperfecta?

What is the characteristic of the crowns of teeth in Dentinogenesis Imperfecta?

What is the reason for rapid loss of enamel in Dentinogenesis Imperfecta?

What is the characteristic of the roots of teeth in Dentinogenesis Imperfecta?

What is the characteristic of the pulp in Dentinogenesis Imperfecta?

What is the characteristic of dentinal tubules in Dentinogenesis Imperfecta?

What is the characteristic of the enamel-dentin junction in Dentinogenesis Imperfecta?

What is the relation between Dentinogenesis Imperfecta and Osteogenesis Imperfecta?

What is the primary cause of internal resorption leading to a progressive resorptive process in the pulp chamber or root canals?

What is the characteristic radiographic appearance of internal resorption?

What is the appropriate treatment for internal resorption to avoid perforation of the tooth?

What is the most common location of external resorption?

What is the characteristic radiographic appearance of external resorption?

What is the primary cause of Turner's hypoplasia?

What is the term for defects in tooth structure that are hereditary or acquired?

What is the term for a severe form of dentinogenesis imperfecta?

Which component is noted for being involved in regulating the formation and mineralization of enamel?

Which type of Amelogenesis Imperfecta is associated with normal enamel matrix but defective mineralization?

Which form of Amelogenesis Imperfecta leads to thin enamel with vertical pitted grooves?

Which substance, when defective, typically leads to softer enamel and a rough surface texture?

What distinguishes hypomaturation from other types of Amelogenesis Imperfecta?

Which of the following types of Amelogenesis Imperfecta is often associated with small teeth and loss of contact points?

Which form of Amelogenesis Imperfecta is associated with enamel that is frequently stained and prone to exogenous discoloration over time?

Which protein is crucial for the initial mineralization and hardness of enamel but is typically removed during maturation?

Which stage of dental fluorosis involves yellowish or brown staining of the enamel?

What is disrupted due to increased fluoride levels leading to dental fluorosis?

Which histological feature is characteristic of dental fluorosis?

Which enamel matrix protein is critical for the initiation of enamel mineralization?

What is another name for dental fluorosis characterized by pitted, opaque, brown staining?

Which phase of amelogenesis is disrupted by excess fluoride, leading to dental fluorosis?

Which classification describes enamel that is grossly defective, brittle, and easily chipped away?

Which protein plays a significant role in the framework formation of enamel?

More Like This

Developmental Defects of the Tongue

Dental Histopathology Quiz

Pathology of Idiopathic Leukoplakia

Giant Cell Fibroma