77 Questions
What are dental anomalies?
Developmental abnormalities during the formation of the tooth or teeth.
What is the term for extra teeth that appear in addition to the regular number?
Supernumerary teeth
Where do mesiodens occur?
Between the maxillary central incisors
What is the common region of the jaws to be affected by supernumerary teeth?
Premaxilla
What is the cause of most supernumerary teeth?
Initial spontaneous gene mutations
What term refers to teeth that erupt distal to the third molar?
Distodens
Which type of supernumerary teeth may block the eruption of the third molar?
Paramolar
What is the result of an outfolding of the enamel organ, involving an extra cusp or tubercle that protrudes from the tooth?
Dens Evaginatus
What condition requires monitoring as the tooth can lose its blood and nerve supply, and may need root canal treatment?
Dens in Dente
Which type of Amelogenesis Imperfecta results in enamel that is normal in form on eruption but tends to chip from underlying dentin?
Hypomaturation Amelogenesis Imperfecta
What is the inherited disorder of dentin formation due to autosomal dominant disturbance?
Dentinogenesis Imperfecta
What is the classification type of Dens in Dente that extends through the root and communicates laterally with the periodontal ligament space through a pseudo-foramen or at the apical foramen?
Type III
What is the disturbance in tooth formation that produces a sharp bend or curve in the tooth (root or crown)?
Dilaceration
What is the feature of Taurodont teeth that distinguishes it from other dental conditions?
Longitudinally enlarged pulp chambers
Which type of Amelogenesis Imperfecta leads to marked changes in the enamel of all or nearly all the teeth in both dentitions?
Hypocalcified Amelogenesis Imperfecta
What is the most common location for external root resorption?
Root surface
Which of the following is a possible cause of external root resorption?
Localized inflammatory lesions
What is the radiographic appearance of pulp stones?
Radiopaque structures within pulp chambers or root canals
Which condition does not require treatment according to the text?
Pulp stones
What is the etiology of pulpal sclerosis?
Diffuse process of pulpal calcification
What is the radiographic appearance of early pulpal sclerosis?
Radiolucent foci in the dental pulp
Which structure is lost around the apex when external root resorption occurs as a result of a periapical inflammatory lesion?
Lamina dura
What is the most common type of lesion in the dental pulp?
Pulp stones
Which condition is characterized by atypical dentin formation and abnormal pulp morphology?
Dentin Dysplasia, Type I
What is the dental abnormality that is usually localized to a certain area, affects the enamel, dentin, and pulp of teeth, and is non-hereditary?
Regional Odontodysplasia
What is the condition characterized by the presence of small globules of enamel on the roots of molars and may cause food stagnation at the gingival margin?
Enamel Pearl
Which dental condition manifests as a well-delineated additional cusp located on the surface of an anterior tooth?
Talon Cusp
What is the type of resorption that affects the inner surface of the pulp chamber and canal?
Internal resorption
What condition results from a chemical action not involving bacteria and is usually found on incisors, often involving multiple teeth?
Erosion
Which dental condition involves the physiologic wearing away of the dentition resulting from occlusal contacts between upper and lower teeth?
Attrition
Which condition is characterized by the condition in which two teeth have exchanged positions?
Transposition
What is the term for the rare anomaly that arises when the tooth bud of a single tooth attempts to divide?
Gemination
What condition results from the combining of adjacent tooth germs, resulting in union of the developing teeth?
Fusion
Which condition occurs when the roots of two or more teeth are united by cementum?
Concrescence
What term is used when teeth are larger than normal or occur in smaller than normal jaws?
Macrodontia
What condition results from the combining of adjacent tooth germs, resulting in union of the developing teeth?
Fusion
In which condition are all teeth smaller than normal and may occur in some cases of pituitary dwarfism?
Microdontia
Hypodontia refers to the absence of numerous teeth.
False
Fusion of teeth results from the combining of adjacent tooth germs, resulting in union of the developing teeth.
True
Microdontia can commonly affect the maxillary lateral incisors and third molars.
True
Gemination is a rare anomaly that arises when the tooth bud of a single tooth attempts to divide.
True
Missing teeth, abnormal occlusion, or altered facial appearance may cause psychologic distress in patients.
True
Macrodontia refers to teeth that are smaller than normal.
False
Transposition typically involves the exchange of positions between permanent canine and first premolar.
True
Supernumerary teeth characteristically found in cleidocranial dysostosis.
True
Supernumerary teeth are always inherited abnormalities.
False
Mesiodens occur between the mandibular central incisors.
False
External root resorption can occur as a result of a periapical inflammatory lesion.
True
Pulp stones have a radiographic appearance that includes globules of enamel on the roots of molars.
False
Supplemental teeth always have abnormal morphology.
False
Dens in Dente is characterized by the presence of small globules of enamel on the roots of molars.
False
Acquired abnormalities result from changes to teeth before normal formation.
False
Most supernumerary teeth never erupt and may cause other dental problems.
True
Amelogenesis Imperfecta can affect both primary and permanent dentition.
True
Dens Evaginatus is more likely to affect premolars than any other tooth.
True
Taurodontism is characterized by longitudinally enlarged pulp chambers.
True
Hypoplastic Amelogenesis Imperfecta results in teeth showing yellowish-brown color due to exposed dentin.
True
Dilaceration is a disturbance in tooth formation that produces a sharp bend or curve in the tooth (root or crown).
True
Dens in Dente can be classified into three major types based on its extent within the tooth.
True
Dentinogenesis Imperfecta leads to distinctive translucence and blue to brown discoloration.
True
Gemination of a tooth results in one root, one root canal, and a partially bifid dental crown.
False
Dentin dysplasia, type II, affects the color of both primary and permanent dentition.
False
Regional odontodysplasia is a hereditary condition affecting the maxillary anterior teeth.
False
Enamel pearls are small globules of enamel that occur on the crowns of molars.
False
Attrition is a physiologic wearing away of the dentition that results from occlusal contacts between upper and lower teeth.
True
Erosion results from a chemical action involving bacteria, often affecting multiple teeth near the gingiva.
False
Internal resorption is initiated by acute trauma to the tooth and direct pulp capping.
True
Acquired abnormalities that cause tooth loss have no clinical significance.
False
Congenital syphilis causes dental hypoplasia only in first molars.
False
External resorption most commonly involves the crown of an unerupted tooth.
True
Pulp stones are foci of rarefaction in the dental pulp.
False
Pulpal sclerosis is a radiographically demonstrable degenerative process.
False
Pulp stones always require treatment.
False
External root resorption can occur as a result of periapical inflammatory lesions, leading to the loss of lamina dura around the apex.
True
Pulpal sclerosis may produce a generalized, ill-defined collection of fine radiopacities throughout large areas of the pulp chamber and pulp canals.
True
Pulp stones are radiolucent structures within pulp chambers or root canals.
False
External root resorption is always due to excessive mechanical (orthodontic) and occlusal forces.
False
Learn about dental management techniques for affected teeth, including removal, restoration, reshaping, and periodic examination to prevent complications. Explore specific cases such as fusion of mandibular incisors and gemination of incisors.
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