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Questions and Answers
How many permanent teeth are typically present in an adult human mouth?
How many permanent teeth are typically present in an adult human mouth?
Which type of teeth is located at the front of the mouth and is primarily used for cutting?
Which type of teeth is located at the front of the mouth and is primarily used for cutting?
If a tooth is identified as a first molar, which of the following is true?
If a tooth is identified as a first molar, which of the following is true?
Which dental term describes the specific classification of a tooth being the second premolar?
Which dental term describes the specific classification of a tooth being the second premolar?
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What distinguishes a central incisor from a lateral incisor?
What distinguishes a central incisor from a lateral incisor?
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What is the term used for the primary set of teeth?
What is the term used for the primary set of teeth?
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How many teeth are typically found in primary dentition?
How many teeth are typically found in primary dentition?
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Which notation system includes a two-digit code for identifying teeth?
Which notation system includes a two-digit code for identifying teeth?
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Why is understanding tooth morphology significant?
Why is understanding tooth morphology significant?
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In the Palmer Notation for permanent dentition, how are the teeth numbered?
In the Palmer Notation for permanent dentition, how are the teeth numbered?
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How many permanent teeth are typically present in an adult mouth?
How many permanent teeth are typically present in an adult mouth?
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What is the main purpose of learning dental terminology?
What is the main purpose of learning dental terminology?
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In FDI notation, how are the primary teeth labeled?
In FDI notation, how are the primary teeth labeled?
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What is the primary function of the periodontal ligament?
What is the primary function of the periodontal ligament?
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Which structure is primarily responsible for transmitting sensations such as pain and temperature in the tooth?
Which structure is primarily responsible for transmitting sensations such as pain and temperature in the tooth?
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What is the role of the cementum in tooth structure?
What is the role of the cementum in tooth structure?
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What type of tissue is found in the pulp chamber of the tooth?
What type of tissue is found in the pulp chamber of the tooth?
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What function does the gingivae serve in relation to the teeth?
What function does the gingivae serve in relation to the teeth?
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Which layer of tissue covers the bones of the jaws and contains blood vessels for nourishment?
Which layer of tissue covers the bones of the jaws and contains blood vessels for nourishment?
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Which of the following correctly describes dentine?
Which of the following correctly describes dentine?
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What primarily protects the underlying tissues from injury during chewing?
What primarily protects the underlying tissues from injury during chewing?
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What is the primary function of teeth?
What is the primary function of teeth?
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Which of the following describes the most mineralised part of a tooth?
Which of the following describes the most mineralised part of a tooth?
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What component is primarily responsible for anchoring teeth to the jawbone?
What component is primarily responsible for anchoring teeth to the jawbone?
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Which term refers to the two sets of teeth that humans typically develop?
Which term refers to the two sets of teeth that humans typically develop?
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Which of the following substances makes up the majority of enamel?
Which of the following substances makes up the majority of enamel?
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In relation to tooth anatomy, what does the term 'cervical margin' refer to?
In relation to tooth anatomy, what does the term 'cervical margin' refer to?
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Which of the following is NOT a function of teeth?
Which of the following is NOT a function of teeth?
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Which type of tooth is typically involved in grinding food?
Which type of tooth is typically involved in grinding food?
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Study Notes
Dental Anatomy
- The enamel is the outer surface of the anatomical crown, it is the hardest substance in the body, composed of 96% inorganic material and 4% organic
- The cementum is a layer of connective tissue surrounding the root of the tooth
- The dental pulp is the soft fleshy connective tissue inside the tooth, containing nerve fibers, blood vessels and lymph
- The gingiva is a tough fibrous layer of connective tissue that covers the bone of both jaws. It is richly supplied with blood vessels
- The dentine forms the bulk of the tooth and is slightly yellow in color. It can repair itself by laying down a tertiary layer
Functions of Teeth
- The primary function of teeth is to masticate (chew) food
- Teeth aid in speech production
- The teeth help with swallowing by providing a surface for the tongue to push food against
Tooth Function cont…
- The incisors are situated at the front of the mouth and are used for biting and cutting food
- The canines are situated behind the incisors and are used for tearing food
- The premolars are situated behind the canines and are used for crushing and grinding food
- The molars are situated at the back of the mouth and are used for crushing and grinding food
Dental Notation
- The Palmer notation uses a system of lines and numbers to identify the different teeth, with the upper teeth drawn on the left side and the lower teeth on the right side
- The FDI notation uses a two-digit code to represent each tooth, with the first digit representing the quadrant and the second digit representing the tooth
Different Dentitions
- The primary dentition is also known as the deciduous dentition. It is made up of 20 teeth and is lost, with permanent teeth replacing them
- The permanent dentition is also known as the secondary dentition. It is made up of 32 teeth, and are the adult teeth
Primary Dentition
- There are 20 primary teeth
- They are the incisors, canines, and molars
- The arrangement of the teeth is the same in each quadrant, with 2 incisors, 1 canine, and 2 molars
Permanent Dentition
- There are 32 permanent teeth
- They are the incisors, canines, premolars, and molars
- The arrangement of the teeth is the same in each quadrant, with 2 incisors, 1 canine, 2 premolars and 3 molars
Tooth Identification
- The primary teeth are generally smaller than the permanent teeth
- The primary teeth have a more rounded cusp shape and a whiter color
- The primary teeth have a smoother enamel surface
- The primary teeth are lost with age and are replaced by permanent teeth
Resources/further reading
- Faculty of Medicine and Health, School of Dentistry, The Tooth Morphology Lab. Available at: dentapps.leeds.ac.uk/vlab/morphology/index.htm
- Basic Dental Anatomy for First Year Students. Available at: https://www.youtube.com/watch?v=eijR2mJOg0I
- Pocket Dentistry. Overview of the dentitions [online] Available at: https://pocketdentistry.com/15-overview-of-the-dentitions/
Real Tooth Morphology App
- Light Arc Studio Ltd. - An app available for downloading to assist in the study of tooth morphology
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