Podcast
Questions and Answers
What is the hardest part of the tooth that covers the crown?
What is the hardest part of the tooth that covers the crown?
Enamel
Which part of the tooth contains thin nerves and blood vessels?
Which part of the tooth contains thin nerves and blood vessels?
Pulp
Name the two categories of teeth based on their development.
Name the two categories of teeth based on their development.
Deciduous and permanent
What type of teeth are responsible for grinding food?
What type of teeth are responsible for grinding food?
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Which artery supplies blood to the teeth and jaw bones?
Which artery supplies blood to the teeth and jaw bones?
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What branches of the maxillary artery supply the maxillary anterior teeth?
What branches of the maxillary artery supply the maxillary anterior teeth?
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Which cranial nerve is responsible for the sensory nerve supply to the jaws?
Which cranial nerve is responsible for the sensory nerve supply to the jaws?
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What is the primary function of incisors?
What is the primary function of incisors?
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Which muscles are primarily involved in movements of the mandible during mastication?
Which muscles are primarily involved in movements of the mandible during mastication?
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What is the function of canines in the human dentition?
What is the function of canines in the human dentition?
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Study Notes
Tooth Structure
- Tooth consists of enamel, dentin, pulp, and cement.
- Enamel: Hardest part, covers the crown, crucial for chewing.
- Dentin: Ivory-like substance, forms the majority of the tooth.
- Pulp: Sensitive nerve and blood vessel cluster, enters through the apical canal.
- Cement: Thin, hard, bone-like layer covering the roots.
- Main parts: Crown, neck, and root.
Tooth Classification
- Classified by function and development.
- Development: Deciduous (baby) and permanent teeth.
- Function: Incisors, canines, premolars, and molars.
- Incisors: Initial biting.
- Canines: Tearing tough food.
- Premolars/Molars: Grinding food for swallowing.
Tooth Blood Supply
- Maxillary artery (branch of external carotid artery) supplies jaw and teeth.
- Important branches:
- Inferior alveolar artery: Branches medially from maxillary artery, supplies:
- Premolars and molars
- Chin
- Anterior teeth
- Mandible and teeth
- Pulp and periodontal membrane.
- Superior alveolar arteries: Branches from maxillary artery, supplies:
- Maxillary teeth
- Alveolar bone
- Membranes of the sinus
- Gingiva, alveolar mucosa, and cheek.
- Anterior superior alveolar artery: Branch from infraorbital artery, supplies:
- Maxillary anterior teeth and supporting tissues.
- Inferior alveolar artery: Branches medially from maxillary artery, supplies:
Sensory Nerve Supply
- Trigeminal nerve (cranial nerve V) provides sensory function to jaws and teeth.
- Trigeminal ganglion located at the apex of the temporal bone.
- Three main branches of the trigeminal nerve:
- Ophthalmic
- Maxillary
- Mandibular
Masticatory Muscles
- Muscles involved in jaw movements:
- Lateral pterygoid
- Masseter
- Medial pterygoid
- Temporalis
- Mylohyoid
- Geniolyoid
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Description
Explore the intricate anatomy of teeth, including enamel, dentin, pulp, and cement. Understand the different types of teeth based on their function and development stages, including deciduous and permanent teeth. Learn about the blood supply to the teeth and its significance.
