Questions and Answers
The 2nd most common condition is ______.
Paramolar
Pericoronitis is the most common condition affecting the ______.
gingiva
In Class II classification, space between the mandible and distal of 2nd molar is less than the ______ diameter.
mesiodistal
Class III classification indicates that all of the 3rd molar is located within the ______.
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The highest portion of impacted tooth in Position A is level with the occlusal line of ______.
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In the case of fusion, two developing tooth germs can result in a ______ large tooth.
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Complete Fusion involves both ______ and root.
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Anomalies in the crown can occur due to the fusion of ______ tooth buds.
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The highest portion of the impacted tooth is below the occlusal line but above the cervical line of the 2nd molar is known as the ______.
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The most common position of impacted teeth is ______.
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In the distoangular position, the 3rd molar crown points ______ towards the ramus.
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The normal vertical position of an impacted tooth is referred to as ______.
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An impacted tooth lying at any level within the bone may be described as ______.
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An inverted 3rd molar has its crown pointing towards the inferior border of the ______.
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Talon's cusp, also known as supernumerary cusp, features an overdeveloped ______.
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Gemination occurs when 1 tooth bud attempts to divide into ______.
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The _____ is narrower on the cutting edge.
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Mulberry Molar has an occlusal surface that is _____ together.
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Amelogenesis Imperfecta is also known as Hereditary _____ Hypoplasia.
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Concrescence refers to two normally separated teeth becoming _____ in cementum.
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Dentin dysplasia is a ______ condition that is a dominant genetic disorder of teeth.
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Factors such as trauma and overcrowding can be classified as _____ factors.
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Infections and nutritional ______ can lead to dentin dysplasia.
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Systemic factors contributing to dental issues include _____ and abscess formation.
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In Type I or Radicular Type dentin dysplasia, there is a problem with the ______.
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Defects in amelogenesis can lead to abnormal colors such as yellow, _____, and gray.
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Type II or Coronal Type dentin dysplasia is characterized primarily by a problem with the ______.
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Children may be born with syphilis, which can lead to _____ in enamel.
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In patients with dentin dysplasia, the color of primary dentition is opalescent while the permanent is ______.
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Enamel pearl or enameloma is associated with ______.
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Enamel hypoplasia is characterized by quantitatively defective ______.
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Dilation results in a bent root as much as ______ degrees.
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Ankylosis causes the tooth to be ______ in bone.
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Flexion involves the ______ third of the root.
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Children may receive ______ steel crowns as a treatment.
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Enamel hypocalcification results in qualitatively defective enamel with normal ______ of enamel.
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The clinical implication of a dilacerated root is that it is ______ to extract.
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Study Notes
Dental Anomalies and Classifications
-
Common Anomalies:
- Paramolar: erupts on buccal, lingual, or proximal surfaces; often fused with permanent maxillary molar.
- Peridens: erupts outside the dental arch.
Symptoms and Conditions
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Pericoronitis:
- Most prevalent condition; inflammation of gingiva surrounding the tooth.
Classification of Third Molars
- Class I: Adequate space between ramus and distal second molar.
- Class II: Insufficient space between the mandible and distal second molar, less than the mesiodistal diameter of the third molar crown.
- Class III: Entire third molar is located within the ramus.
Impaction Positions
- Position A: Highest point of impacted tooth is level with occlusal line.
- Position B: Tooth is below occlusal line but above cervical line.
- Position C: Tooth is below the cervical line.
Angulations of Impacted Molars
- Mesioangular: Most common; crown contacts distal surface of second molar.
- Distoangular: Crown directed distally towards the ramus.
- Vertical: Normal position; may fail to erupt due to space issues.
- Horizontal: Positioned at any level; potential impaction.
- Inverted: Crown points towards the mandible's inferior border.
Root Anomalies
- Supernumerary Roots: Excessive roots; more than usual configuration.
- Concrescence: Fusion of two normally separated teeth via cementum, common in maxillary molars.
Enamel and Dentin Defects
- Amelogenesis Imperfecta: Hereditary enamel hypoplasia; occurs due to protein malfunctions during enamel formation.
- Enamel Pearl: Small globule found in furcation areas of roots; arises from misplaced ameloblasts.
- Dentin Dysplasia: Dominant genetic disorder; presents with rootless teeth.
Anomaly Types
- Fusion: Two tooth buds combine into a single large tooth.
- Gemination: One tooth bud attempts to divide into two, appearing as a split or twinned crown.
- Taurodontism: Elongated crowns with rectangular roots and displaced furcation.
Clinical Features and Treatments
- Clinical Features of Amelogenesis Imperfecta: Abnormal colors, thin enamel, higher susceptibility to cavities, hypersensitivity to temperature.
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Treatment Options:
- Children: Stainless steel crowns.
- Adults: Porcelain restorations.
Radiographic Indicators
- Dentin Dysplasia Type I: Root problems; short roots and obliterated pulp chambers in deciduous teeth.
- Dentin Dysplasia Type II: Crown problems; primary dentition appears opalescent while permanent teeth are normal.
Etiology of Dental Anomalies
- Trauma: Physical injury leading to various anomalies.
- Hereditary Factors: Genetic predisposition influencing dental development.
- Systemic Conditions: Conditions such as Rickets, Syphilis, and the effects of fluoridation can lead to enamel defects.
Clinical Implications
- Difficulty in tooth extraction for anomalies like dilaceration (bent roots) and ankylosis (embedded in bone) due to abnormal positioning and structure.
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Description
Test your knowledge on dental anatomy, including common conditions, tooth eruptions, and specific terms related to dental health. This quiz will cover symptoms and characteristics of various dental issues, such as pericoronitis and paramolars. Perfect for dental students and professionals looking to refresh their understanding.
