Podcast
Questions and Answers
At what age does the eruption of permanent maxillary central incisors typically occur?
At what age does the eruption of permanent maxillary central incisors typically occur?
- 8-9 years
- 7-8 years (correct)
- 9-10 years
- 5-6 years
Which of the following is NOT a characteristic of the permanent maxillary central incisors?
Which of the following is NOT a characteristic of the permanent maxillary central incisors?
- They are located at the back of the mouth. (correct)
- They are shearing or cutting teeth.
- They have incisal ridges or edges.
- They complete root development by around 10 years.
What is the universal number for the maxillary right central incisor?
What is the universal number for the maxillary right central incisor?
- #8 (correct)
- #10
- #9
- #7
When does the calcification of the permanent maxillary central incisor begin?
When does the calcification of the permanent maxillary central incisor begin?
Which of the following best describes the mesial contact area of the permanent maxillary central incisors?
Which of the following best describes the mesial contact area of the permanent maxillary central incisors?
What is the age range for the completion of enamel for permanent maxillary central incisors?
What is the age range for the completion of enamel for permanent maxillary central incisors?
Which of the following statements about the maxillary central incisors is incorrect?
Which of the following statements about the maxillary central incisors is incorrect?
In terms of arch position, where are the permanent maxillary central incisors located?
In terms of arch position, where are the permanent maxillary central incisors located?
Where is the distal contact area of the mandibular lateral incisor located compared to the mesial contact area?
Where is the distal contact area of the mandibular lateral incisor located compared to the mesial contact area?
Which feature is unique to the lingual surface of the mandibular lateral incisor compared to the central incisor?
Which feature is unique to the lingual surface of the mandibular lateral incisor compared to the central incisor?
What is the typical root length of the mandibular lateral incisor in comparison to the central incisor?
What is the typical root length of the mandibular lateral incisor in comparison to the central incisor?
What describes the incisal edge of the mandibular lateral incisor?
What describes the incisal edge of the mandibular lateral incisor?
Which characteristic is true regarding the root of the mandibular lateral incisor?
Which characteristic is true regarding the root of the mandibular lateral incisor?
Which statement about the distal contact area of the mandibular incisor is accurate?
Which statement about the distal contact area of the mandibular incisor is accurate?
What is the typical age range for the completion of root development for mandibular canines?
What is the typical age range for the completion of root development for mandibular canines?
Which characteristic is not typically associated with the labial surface of mandibular canines?
Which characteristic is not typically associated with the labial surface of mandibular canines?
Which of the following describes the root profile of the mandibular lateral incisor?
Which of the following describes the root profile of the mandibular lateral incisor?
How does the curvature of the cervical line differ in the mandibular lateral incisor compared to others?
How does the curvature of the cervical line differ in the mandibular lateral incisor compared to others?
What is a common feature associated with the tubercle on the lingual surface of the maxillary canine?
What is a common feature associated with the tubercle on the lingual surface of the maxillary canine?
At which developmental stage does the calcification of the mandibular canine typically begin?
At which developmental stage does the calcification of the mandibular canine typically begin?
What typically happens to the maxillary canine’s eruption space when it erupts after the maxillary premolars?
What typically happens to the maxillary canine’s eruption space when it erupts after the maxillary premolars?
How is the crown form of the maxillary canine characterized?
How is the crown form of the maxillary canine characterized?
Which of the following refers to the universal number for the mandibular left canine?
Which of the following refers to the universal number for the mandibular left canine?
The cusp of the mandibular canine is typically described as being:
The cusp of the mandibular canine is typically described as being:
What is the condition called when an individual has more teeth than the usual number?
What is the condition called when an individual has more teeth than the usual number?
Which anomalies are more commonly encountered in teeth?
Which anomalies are more commonly encountered in teeth?
At what age does the calcification of the mandibular third molar typically begin?
At what age does the calcification of the mandibular third molar typically begin?
Where is the mandibular third molar located in relation to the midline?
Where is the mandibular third molar located in relation to the midline?
Which of the following is a common characteristic of mandibular third molars?
Which of the following is a common characteristic of mandibular third molars?
What is a common positioning characteristic of the mandibular third molar?
What is a common positioning characteristic of the mandibular third molar?
Which of these statements about supernumerary teeth is true?
Which of these statements about supernumerary teeth is true?
What is a rare type of cusp anomaly that can be found in molars?
What is a rare type of cusp anomaly that can be found in molars?
What describes the outline of the distal margin of the mandibular canine?
What describes the outline of the distal margin of the mandibular canine?
How do the mesiodistal and labiolingual dimensions of the mandibular canine crown and root compare to the maxillary canine?
How do the mesiodistal and labiolingual dimensions of the mandibular canine crown and root compare to the maxillary canine?
What is the usual length comparison between the roots of maxillary and mandibular canines?
What is the usual length comparison between the roots of maxillary and mandibular canines?
Where is the height of contour located on the mandibular canine compared to the mesial outline?
Where is the height of contour located on the mandibular canine compared to the mesial outline?
What characterizes the incisal outline of the mandibular canine?
What characterizes the incisal outline of the mandibular canine?
How does the cervical line of the mandibular canine differ from that of the maxillary canine?
How does the cervical line of the mandibular canine differ from that of the maxillary canine?
What is true about the lingual surface of the mandibular canine?
What is true about the lingual surface of the mandibular canine?
Which characteristic pertains to the mesioincisal angle of the mandibular canine?
Which characteristic pertains to the mesioincisal angle of the mandibular canine?
Study Notes
Permanent Maxillary Central Incisors
- The maxillary central incisors are centered in the maxilla, one on either side of the median line, with the mesial surface of each in contact with the mesial surface of the other.
- These teeth play a crucial role in aesthetics and phonetics.
- The distal contact area is located more cervically than the mesial.
- The lingual outlines are similar to the labial aspect.
- The structures of the lingual surface are similar to their counter-parts on the central incisor.
- The cingulum is more offset to the distal, resulting in the curvature of the cervical line also being offset distally.
Permanent Maxillary and Mandibular Lateral Incisors
- The distal contact area is located more cervically than the mesial.
- In the incisal aspect, the incisal edge is not straight mesiodistally like the central incisor, it curves toward the lingual in its distal portion.
Permanent Mandibular Lateral Incisor
- The root length is slightly greater than the central incisor.
- The root is also slightly thicker and wider.
- Concavities may be found on the mesial and distal root surfaces, with the concavity in the distal being more pronounced.
Permanent Maxillary and Mandibular Canines
- The cusp of mandibular canine is less well developed than the maxillary and its tip is not normally as sharp mesiodistally.
- The labial surface is not as convex as the maxillary canine.
- The maxillary canine normally erupts after the maxillary premolars, its space is sometimes partially closed.
- The maxillary canine may erupt labially, lingually, or not at all, in which case it is impacted.
Permanent Mandibular Canines
- The mandibular canine is the 3rd tooth from the midline in each lower quadrant.
- It replaces the deciduous mandibular canine.
- It is pentagonal, similar to the maxillary canine.
- The labial surface is generally not as convex but is generally more convex than the mandibular incisors.
- The crown is long, or longer incisogingivally.
- The root is usually shorter, sometimes it may be as long as the maxillary canine.
- Total crown plus root length is approximately the same for both canines.
- The lingual surfaces and its structures are less well developed than the maxillary canine.
Permanent Maxillary and Mandibular Third Molars
- The mandibular third molar occupies the 8th and last position from the midline in each mandibular quadrant.
- The mandibular third molar shares its mesial contact with the permanent second molar, and there is no distal contact.
- The size of third molars can range from very small to much larger than any other molar.
- It is more common to find extra large mandibular third molars and extra small maxillary third molars.
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Description
This quiz covers the anatomy and features of the permanent maxillary and mandibular incisors. Learn about their roles in aesthetics and phonetics, as well as unique characteristics such as the position of contact areas and root lengths. Test your knowledge on these important dental structures.
