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Questions and Answers
At what age do the primary mandibular canines usually exfoliate?
At what age do the primary mandibular canines usually exfoliate?
The ridge found on the linguo-cervical third of anterior teeth is called the:
The ridge found on the linguo-cervical third of anterior teeth is called the:
What cell type is responsible for forming dentin?
What cell type is responsible for forming dentin?
Which premolar is most likely to have a single pulp horn?
Which premolar is most likely to have a single pulp horn?
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Which one of the following is not a normal anatomical feature of mandibular incisors?
Which one of the following is not a normal anatomical feature of mandibular incisors?
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The heights of contour of the distal surfaces of permanent mandibular central incisors are located in which coronal third?
The heights of contour of the distal surfaces of permanent mandibular central incisors are located in which coronal third?
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Which proximal surface is farther away from the midline compared to another?
Which proximal surface is farther away from the midline compared to another?
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The transition area of a tooth where one surface ends and another surface begins is called what?
The transition area of a tooth where one surface ends and another surface begins is called what?
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What is the characteristic of the central developmental groove of maxillary 2nd premolar compared to maxillary 1st premolar?
What is the characteristic of the central developmental groove of maxillary 2nd premolar compared to maxillary 1st premolar?
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How many root canals does the lower 1st premolar usually have?
How many root canals does the lower 1st premolar usually have?
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Which option correctly identifies the maxillary left lateral incisor in the two-digit system?
Which option correctly identifies the maxillary left lateral incisor in the two-digit system?
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Which term describes the part of the tooth that is visible in the oral cavity?
Which term describes the part of the tooth that is visible in the oral cavity?
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Which part of the tooth is considered the hardest?
Which part of the tooth is considered the hardest?
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What is identified by the number 16 in the two-digit system?
What is identified by the number 16 in the two-digit system?
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What term describes the emergence of teeth into the oral cavity?
What term describes the emergence of teeth into the oral cavity?
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According to the American numbering system, what is the number for the permanent maxillary left second premolar?
According to the American numbering system, what is the number for the permanent maxillary left second premolar?
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How long does the shedding of primary teeth usually take?
How long does the shedding of primary teeth usually take?
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What is the correct number of point angles in an anterior tooth?
What is the correct number of point angles in an anterior tooth?
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What does the term 'dentition' encompass?
What does the term 'dentition' encompass?
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What is usually found in the depths of developmental grooves?
What is usually found in the depths of developmental grooves?
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Which structure covers the surface of the tooth root?
Which structure covers the surface of the tooth root?
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At what age does mixed dentition typically begin?
At what age does mixed dentition typically begin?
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At what age does the root completion of deciduous teeth typically occur after eruption?
At what age does the root completion of deciduous teeth typically occur after eruption?
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Which feature describes the symmetry of the permanent mandibular central incisor compared to the mandibular lateral incisor?
Which feature describes the symmetry of the permanent mandibular central incisor compared to the mandibular lateral incisor?
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What is the approximate age at which the permanent 2nd molars erupt into the oral cavity?
What is the approximate age at which the permanent 2nd molars erupt into the oral cavity?
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In the two-digit numbering system, what does the code '11' represent?
In the two-digit numbering system, what does the code '11' represent?
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Which of the following are characteristics used to compare upper central and upper lateral incisors?
Which of the following are characteristics used to compare upper central and upper lateral incisors?
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How many teeth are generally visible in the oral cavity at 21 years of age?
How many teeth are generally visible in the oral cavity at 21 years of age?
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What are the typical features used to distinguish upper premolars from lower premolars?
What are the typical features used to distinguish upper premolars from lower premolars?
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Which landmark is NOT typically found on the lingual aspect of newly erupted permanent central incisors?
Which landmark is NOT typically found on the lingual aspect of newly erupted permanent central incisors?
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Which feature is generally NOT associated with upper canines in comparison to lower canines?
Which feature is generally NOT associated with upper canines in comparison to lower canines?
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What structural feature differentiates the landmarks found on the occlusal aspect of the upper first premolar?
What structural feature differentiates the landmarks found on the occlusal aspect of the upper first premolar?
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What is the crown shape of the labial aspect of the maxillary lateral incisor?
What is the crown shape of the labial aspect of the maxillary lateral incisor?
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What features are present on freshly erupted, unworn central incisors?
What features are present on freshly erupted, unworn central incisors?
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In the mandibular central incisor, how do the mesial and distal marginal ridges compare?
In the mandibular central incisor, how do the mesial and distal marginal ridges compare?
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Where is the mesial contact area of the maxillary lateral incisor located?
Where is the mesial contact area of the maxillary lateral incisor located?
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What is the angle of the cusp of the maxillary canine?
What is the angle of the cusp of the maxillary canine?
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In which tooth does the mesial cusp slope of the buccal cusp appear straight and longer than the distal slope?
In which tooth does the mesial cusp slope of the buccal cusp appear straight and longer than the distal slope?
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Which teeth have the largest occlusal surfaces?
Which teeth have the largest occlusal surfaces?
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In which type of tooth is the mesial cusp slope longer than the distal one?
In which type of tooth is the mesial cusp slope longer than the distal one?
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Which statement accurately describes the relationship between the cusps of the maxillary 1st premolar?
Which statement accurately describes the relationship between the cusps of the maxillary 1st premolar?
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What is the correct order of cusp size for the mandibular 2nd premolar from largest to smallest?
What is the correct order of cusp size for the mandibular 2nd premolar from largest to smallest?
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Which permanent tooth is considered the 'cornerstone' of the dental arch?
Which permanent tooth is considered the 'cornerstone' of the dental arch?
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What shape represents the facial aspect of all teeth?
What shape represents the facial aspect of all teeth?
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Mesiolingual grooves are most commonly found on which permanent teeth?
Mesiolingual grooves are most commonly found on which permanent teeth?
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Root bifurcation is more likely to be found in which of the following permanent anterior teeth?
Root bifurcation is more likely to be found in which of the following permanent anterior teeth?
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In terms of mesiodistal and faciolingual measurements, which permanent anterior crown exhibits greater mesiodistal measurement?
In terms of mesiodistal and faciolingual measurements, which permanent anterior crown exhibits greater mesiodistal measurement?
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Which teeth are most likely to be congenitally missing?
Which teeth are most likely to be congenitally missing?
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Study Notes
Dental Development and Eruption
- Permanent maxillary first molar root completion occurs at 9-10 years old.
- Mandibular canines erupt simultaneously with premolars.
- Maxillary first incisors erupt before any deciduous teeth are lost.
- Permanent tooth eruption begins when half of the root is formed.
- Complete deciduous dentition eruption occurs between 2.5-6.5 years.
- Maxillary second premolars have three cusps.
Dental Terminology
- Socket: The bony cavity that holds a tooth.
- Developmental Groove: An anatomical groove involved in tooth development.
- Cusp: A prominent, rounded projection on the chewing surface of a tooth.
- Mamelons: Small rounded projections on the incisal edges of newly erupted incisors.
- Tubercle: Small, rounded eminence on the surface of certain teeth.
Tooth Anatomy
- Primary maxillary molars generally possess two roots.
- Maxillary premolars usually have two roots.
- Maxillary first premolars have mesial and distal cusps of equal length.
- There are 4 line angles in mandibular first molars.
- Maxillary canines often have one fossa on the lingual surface
- The cervix is the transition area between the crown and root.
Dental Development - Age Related
- Children usually have 20 primary teeth at 7 years old.
- Permanent teeth are classified as succedaneous or non-succedaneous.
- Deciduous teeth are replaced by permanent teeth.
- By 21 years, individuals are often expected to have 32 permanent teeth.
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Description
Test your knowledge on the development and eruption of teeth, including key stages and terminology. Explore the anatomy of primary and permanent teeth, along with their features and eruption timelines. This quiz is essential for dental students and professionals alike.
