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Questions and Answers
At what age does the transition to permanent dentition begin?
At what age does the transition to permanent dentition begin?
How many permanent teeth are there, including third molars when present?
How many permanent teeth are there, including third molars when present?
What are the two types of teeth?
What are the two types of teeth?
What is the bone that carries the teeth?
What is the bone that carries the teeth?
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What is the first permanent molar followed by?
What is the first permanent molar followed by?
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What is the term for anything related to teeth?
What is the term for anything related to teeth?
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What replaces the deciduous molars?
What replaces the deciduous molars?
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What does the term Heterodent mean in relation to human teeth?
What does the term Heterodent mean in relation to human teeth?
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How many years does it take to complete the process of permanent dentition?
How many years does it take to complete the process of permanent dentition?
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At what age do the deciduous teeth start erupting?
At what age do the deciduous teeth start erupting?
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What is the movable jaw called?
What is the movable jaw called?
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How many deciduous teeth are present in the human mouth?
How many deciduous teeth are present in the human mouth?
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What is the formula for the deciduous teeth?
What is the formula for the deciduous teeth?
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What happens to the deciduous teeth at around 6 years of age?
What happens to the deciduous teeth at around 6 years of age?
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What is the term for having two sets of teeth?
What is the term for having two sets of teeth?
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At what age does the transition to the permanent dentition begin?
At what age does the transition to the permanent dentition begin?
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Study Notes
Dental Anatomy Lecture 1
Introduction
- Dental anatomy involves the study of teeth and their related structures.
- Man is a heterodont, meaning he has different-shaped teeth.
- Man is also a diphyodont, meaning he has two sets of teeth: deciduous and permanent teeth.
Deciduous Teeth (Temporary or Primary)
- At birth, there are no teeth present in the mouth, but many teeth are in various stages of development in the jaws.
- Eruption of deciduous teeth starts at 6 months and lasts until 2.5 years.
- Deciduous teeth stay until the permanent teeth erupt at around 6 years of age.
- There are 20 deciduous teeth in total, with the following formula: I = Incisors (central and lateral), C = Canine, M = Molars (first and second).
Permanent Teeth (Secondary)
- The transition to permanent dentition begins with the emergence and eruption of the first permanent molars at around 6 years of age.
- The process of replacing deciduous teeth with permanent teeth takes about 20 years to complete.
- There are 32 permanent teeth in total, including third molars when present, with the following formula: I = Incisors (central and lateral), C = Canine, P = Premolars (first and second), M = Molars (first, second, and third).
Tooth Classification
- Teeth are grouped into:
- Anterior teeth (incisors and canines)
- Posterior teeth (premolars and molars)
The Jaws
- The jaw is the bone that carries the teeth.
- There are two jaws:
- The upper jaw (maxilla), which is fixed, carrying maxillary teeth.
- The lower jaw (mandible), which is movable, carrying mandibular teeth.
Additional Notes
- In the permanent formula, premolars have been added, replacing deciduous molars, and third molars have been added.
- The first permanent molar appears in the mouth before any of the deciduous teeth are exfoliated.
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Description
Introduction to dental anatomy, covering the basics of teeth structure and morphology. This lecture is the first in a series of dental anatomy lessons.
