Podcast
Questions and Answers
What is the mesial slope of a cusp in tooth anatomy?
What is the mesial slope of a cusp in tooth anatomy?
- Slope away from the midline
- Tip of the distal cusp
- Tip of the cusp
- Slope towards the midline (correct)
What anatomical position does the distal slope of a cusp refer to?
What anatomical position does the distal slope of a cusp refer to?
- Slope towards the midline
- Slope away from the midline (correct)
- The base of the tooth
- The peak of the cusp
Which dental notation system uses quadrants to classify permanent teeth?
Which dental notation system uses quadrants to classify permanent teeth?
- FDI System
- Chronological System
- Palmer System (correct)
- Universal System
Which of the following is NOT a key learning outcome for permanent dentition?
Which of the following is NOT a key learning outcome for permanent dentition?
How does one apply knowledge of tooth anatomy in patient management?
How does one apply knowledge of tooth anatomy in patient management?
What defines the cusp tip in tooth morphology?
What defines the cusp tip in tooth morphology?
Which tooth surface anatomy feature typically faces the fissure?
Which tooth surface anatomy feature typically faces the fissure?
What is the primary focus when discussing the anatomy differences between permanent teeth?
What is the primary focus when discussing the anatomy differences between permanent teeth?
What anatomical feature is located above the cingulum?
What anatomical feature is located above the cingulum?
How many pulp horns are found in the root canal of the upper central incisor?
How many pulp horns are found in the root canal of the upper central incisor?
What is the shape of the root of the upper central incisor?
What is the shape of the root of the upper central incisor?
What feature describes the crown enamel margin of the upper central incisors?
What feature describes the crown enamel margin of the upper central incisors?
Where is the cingulum located in relation to the gingival margin?
Where is the cingulum located in relation to the gingival margin?
What characteristic distinguishes the palatal cusp of the Upper First Premolar?
What characteristic distinguishes the palatal cusp of the Upper First Premolar?
In the palatal view of the Upper First Premolar, how is the tip of the palatal cusp positioned?
In the palatal view of the Upper First Premolar, how is the tip of the palatal cusp positioned?
What specific feature is found on the mesial root surface of the Upper First Premolar?
What specific feature is found on the mesial root surface of the Upper First Premolar?
What is a characteristic of the canine fossa on the mesial root surface of the Upper First Premolar?
What is a characteristic of the canine fossa on the mesial root surface of the Upper First Premolar?
How many central grooves and fossae are typically found inside the marginal ridges of the Upper First Premolar?
How many central grooves and fossae are typically found inside the marginal ridges of the Upper First Premolar?
At what age does the eruption of the lower lateral incisor typically occur?
At what age does the eruption of the lower lateral incisor typically occur?
Which characteristic differentiates the lower lateral incisor from the central incisor in its labial view?
Which characteristic differentiates the lower lateral incisor from the central incisor in its labial view?
Which aspect of the lower lateral incisor root is more pronounced?
Which aspect of the lower lateral incisor root is more pronounced?
What is the age range for crown completion of the lower lateral incisor?
What is the age range for crown completion of the lower lateral incisor?
How many root canals does the lower lateral incisor typically have?
How many root canals does the lower lateral incisor typically have?
In which view is the mesial side of the lower lateral incisor described as being slightly longer than the distal side?
In which view is the mesial side of the lower lateral incisor described as being slightly longer than the distal side?
What feature is present on the lingual surface of the lower lateral incisor?
What feature is present on the lingual surface of the lower lateral incisor?
What is the initial calcification period for the lower lateral incisor after birth?
What is the initial calcification period for the lower lateral incisor after birth?
At what age does the initial calcification of the mandibular third molar typically begin?
At what age does the initial calcification of the mandibular third molar typically begin?
What is the typical range for the completion of the crown of a mandibular third molar?
What is the typical range for the completion of the crown of a mandibular third molar?
Which of the following accurately describes the number of cusps that a mandibular third molar can have?
Which of the following accurately describes the number of cusps that a mandibular third molar can have?
What is a common characteristic of the roots of a mandibular third molar?
What is a common characteristic of the roots of a mandibular third molar?
When does eruption of the mandibular third molar usually occur?
When does eruption of the mandibular third molar usually occur?
Which of the following functions does NOT pertain to the role of teeth?
Which of the following functions does NOT pertain to the role of teeth?
What is the shape characteristic of the buccal wall of a mandibular third molar?
What is the shape characteristic of the buccal wall of a mandibular third molar?
What distinguishes the mesial root of a mandibular third molar from the distal root?
What distinguishes the mesial root of a mandibular third molar from the distal root?
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Study Notes
Permanent Dentition Tooth Morphology
- Dental, oral, craniofacial anatomy is crucial for patient management
- Identify and describe the locations/anatomy of the various tooth surfaces of the permanent dentition
- Compare and discuss the anatomical differences between the permanent teeth
- Discuss and reflect on how you would use this knowledge within the clinical setting
Dental Notation Systems
- FDI System
- Palmer Notation System
Tooth Anatomy
- Cusp: The pointed elevation on the chewing surface of a tooth
- Cusp Tip (ct): The highest point of the cusp
- Mesial Slope (ms): The incline towards the midline
- Distal Slope (ds): The incline away from the midline
Upper Central Incisors
- Undulating crown enamel margin mesially and distally
- Single, tapering root
- One root canal with two pulp horns
Lower Lateral Incisor (32;42):
- Chronology:
- Initial calcification: 3-4 months after birth
- Crown completion: 4-5 years
- Eruption: 7-8 years
- Root completion: 10 years
- Looks more fan-shaped than the central incisor from the labial
- Mesio-incisal angle is sharp and disto-incisal angle is rounded
- Mesial side slightly longer than distal
- Concave lingual surface
- Small cingulum
- One root with more pronounced distal groove than mesial groove
- One root canal, mesial & distal pulp horns
Lower Canine (33;43):
- Less bulky than the upper canine
- Convex labial surface, with one cusp that inclines distally
- Palatal cusp is smaller and narrower
- Tip of palatal cusp is displaced mesially when viewed from the palatal side
- One central groove, and 2 fossae inside the marginal ridges
- One root
Upper First Premolar:
- Mesial root surface has a developmental groove between the 2 cusps
- Canine fossa – hollow concavity on mesial root surface houses the bulge distally on the canine
- One root
Mandibular Third Molar (38;48):
- Chronology:
- Initial calcification: 8-10 years
- Crown completion: 12-16 years
- Eruption: 17-21 years
- Root completion: 18-25 years
- Very variable size and form
- 4, 5 or 6 cusps
- Roots are variable in number, and can be fused
- Distal inclination
- Very curved, convex buccal wall
- Bulbous crown
- Broader mesial root
- Narrower distal root
Functions of Teeth
- Central incisors: Cut food, aid in speech, provide aesthetics
- Lateral incisors: Cut food, aid in speech, provide aesthetics
- Canines: Rip and tear food
- Premolars: Crush and grind food
- Molars: Grind and chew food
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