Podcast
Questions and Answers
What is the characteristic of pseudoanodontia?
What is the characteristic of pseudoanodontia?
Which condition is synonymous with hyperdontia?
Which condition is synonymous with hyperdontia?
Which of the following is NOT a cause of tooth impaction?
Which of the following is NOT a cause of tooth impaction?
What type of impaction is characterized by the tooth being angled towards the front of the mouth?
What type of impaction is characterized by the tooth being angled towards the front of the mouth?
Signup and view all the answers
Tooth impaction commonly occurs with which of the following teeth?
Tooth impaction commonly occurs with which of the following teeth?
Signup and view all the answers
What is the synonym for Anodontia?
What is the synonym for Anodontia?
Signup and view all the answers
Which type of Anodontia refers to the absence of all teeth?
Which type of Anodontia refers to the absence of all teeth?
Signup and view all the answers
Microdontia is characterized by which of the following?
Microdontia is characterized by which of the following?
Signup and view all the answers
What is a common association with True Partial Anodontia?
What is a common association with True Partial Anodontia?
Signup and view all the answers
Which of the following types of anodontia involves the absence of 1 to 6 teeth?
Which of the following types of anodontia involves the absence of 1 to 6 teeth?
Signup and view all the answers
What is the most common symptom associated with pericoronitis?
What is the most common symptom associated with pericoronitis?
Signup and view all the answers
In Class II classification, what is indicated by the space between the mandible and distal of the second molar?
In Class II classification, what is indicated by the space between the mandible and distal of the second molar?
Signup and view all the answers
Which of the following best describes the anomaly of fusion?
Which of the following best describes the anomaly of fusion?
Signup and view all the answers
What characterizes Position A in the context of impacted teeth?
What characterizes Position A in the context of impacted teeth?
Signup and view all the answers
What is the term for the structure that erupts on the buccal, lingual, or proximal areas?
What is the term for the structure that erupts on the buccal, lingual, or proximal areas?
Signup and view all the answers
What structural characteristic distinguishes the Hutchinson incisor?
What structural characteristic distinguishes the Hutchinson incisor?
Signup and view all the answers
Which of the following is a clinical feature of amelogenesis imperfecta?
Which of the following is a clinical feature of amelogenesis imperfecta?
Signup and view all the answers
What dental anomaly involves the fusion of normally separated teeth in cementum?
What dental anomaly involves the fusion of normally separated teeth in cementum?
Signup and view all the answers
What is one possible systemic factor that can contribute to dental anomalies?
What is one possible systemic factor that can contribute to dental anomalies?
Signup and view all the answers
What feature is commonly observed in mulberry molars?
What feature is commonly observed in mulberry molars?
Signup and view all the answers
What problem is commonly associated with buccoangular tooth positioning?
What problem is commonly associated with buccoangular tooth positioning?
Signup and view all the answers
Which type of tooth condition involves an anomalous tubercle or cusp located in the center of the occlusal surface?
Which type of tooth condition involves an anomalous tubercle or cusp located in the center of the occlusal surface?
Signup and view all the answers
Dens invaginatus is best described as which of the following?
Dens invaginatus is best described as which of the following?
Signup and view all the answers
What causes hypercementosis in teeth?
What causes hypercementosis in teeth?
Signup and view all the answers
What is the primary etiology of Leong's premolar (dens evaginatus)?
What is the primary etiology of Leong's premolar (dens evaginatus)?
Signup and view all the answers
Study Notes
Anodontia
- Also known as Anodontia Vera.
- Characterized by congenital absence of teeth.
- Causes include failure of tooth bud development and can result in true anodontia.
Alterations in Size
- Micrdontia involves poorly developed teeth, presenting as peg-shaped and related to hypoplasia.
- Macrodontia is associated with megadontism and gigantism, indicating hyperplasia of teeth.
- Types include:
- Total or Complete Anodontia: All teeth absent due to failure of dentition development, often linked to hereditary ectodermal dysplasia.
- True Partial Anodontia: Absence of one or several teeth, might also be connected to hereditary factors.
- Pseudoanodontia: Presence of multiple unerupted teeth due to impaction or delayed eruption.
- Induced Anodontia: Results from tooth extraction.
Alterations in Number and Eruption
- Supernumerary teeth (Hyperdontia) represent an excessive number of teeth.
- Distinguished into true supernumerary (normal anatomy) and accessory/rudimentary (non-identifiable).
- Classification includes Mesiodens (most common) located between maxillary central incisors and Maxillary 4th Molar as the second most common.
- Impacted teeth commonly involve 3rd molars and maxillary canines, influenced by factors like lack of space due to crowding, rotation of tooth buds, and ankylosis.
Impaction Types and Symptoms
- Impacted teeth can be classified into:
- Partial
- Complete
- Multiple
- Symptoms of impaction often include pericoronitis, characterized by inflammation of the gingiva covering the tooth.
Anomalies in Crown
- Fusion occurs when two tooth buds merge, typically in mandibular anterior teeth.
- Leong’s Premolar or Dens Evaginatus features an anomalous tubercle on premolars and can expose accessory pulp horns, often due to invaginatus or extrusion of the inner dental epithelium.
- Dens Invaginatus or Dens en Dente refers to a "tooth within a tooth" with exaggerated lingual pits and associated forms.
- Hypercementosis entails an overgrowth of cementum.
Supernumerary Roots and Defects of Enamel
- Supernumerary roots indicate an excess in root number.
- Amelogenesis imperfecta, also known as hereditary enamel hypoplasia, results from protein malfunction during enamel formation.
Clinical Features of Amelogenesis Imperfecta
- Symptoms include abnormal tooth coloration (yellow, brown, gray), thin or soft enamel, increased susceptibility to cavities, and hypersensitivity to temperature changes.
Anomalies in Roots
- Concrescence arises when two normally separated teeth fuse at the cementum level, commonly found in maxillary 2nd and 3rd molars.
- Etiological factors for both root anomalies and enamel defects include trauma, overcrowding, and systemic influences such as rickets.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz explores the concepts of anodontia, including its types, causes, and associated conditions. It also covers alterations in tooth size and number, providing insights into dental anomalies like microdontia and hyperdontia. Test your knowledge on these important aspects of dental development and terminology.
