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Dental Anatomy
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Incisors
Designed for cutting and shearing food. Essential for biting into food.
Canines
Used for gripping and tearing food. They have a single pointed cusp.
Premolars
Function to crush and grind food. Have two or more cusps.
Molars
Best suited for grinding food, thanks to their broad and flat surfaces.
Enamel
Protects tooth from wear and decay. It is the hardest substance in the body.
Dentin
A yellow tissue that makes up most of the tooth structure. It is hard but porous.
Pulp
Consists of connective tissue, blood vessels, and nerves. It nourishes the tooth and provides sensation.
Cementum
Helps to secure the tooth within the jawbone. It is a calcified tissue covering the tooth's roots.
Periodontal Ligament
Connects the cementum to the alveolar bone, cushioning the tooth and allowing slight movement.
Alveolar Bone
Forms the sockets for the teeth, providing them with support and stability.
Gingiva
Gum tissue that covers the alveolar bone and surrounds the teeth to provide a seal against bacteria.
Uvula
Aids in speech and swallowing, and plays a role in keeping the mouth and throat moist.
Soft Palate
Flexible part of the palate that closes off the nasal passages during swallowing.
Hard Palate
Provides structure and support for the upper part of the oral cavity and is important for speech.
Tongue
Essential for chewing, swallowing, tasting, and speaking. It assists in cleaning the teeth.
Salivary Glands
Produce saliva which begins the process of digestion, maintains oral health, and lubricates the mouth.
Mandible
Lower jawbone which supports the lower teeth and provides attachment for muscles of mastication.
Maxilla
Upper jawbone which supports the upper teeth and is involved in the formation of the orbit, nasal cavity, and palate.
Temporomandibular Joint (TMJ)
Connects the jawbone to the skull, allowing for mouth opening and movements necessary for chewing and speaking.
Odontoblasts
Cells that are responsible for dentin formation and can react to stimuli such as cavities.
Ameloblasts
Cells responsible for enamel formation during tooth development. They are lost after tooth eruption.
Caries
Also known as tooth decay, a bacterial infection that causes demineralization and destruction of the tooth structure.
Plaque
A sticky biofilm that forms on teeth, which can lead to tooth decay and gum disease. Preventable with regular brushing and flossing.
Gingivitis
Inflammation of the gums often caused by plaque build-up. It is reversible with proper oral hygiene.
Periodontitis
Advanced gum disease which can lead to destruction of the periodontal ligament and alveolar bone, ultimately resulting in tooth loss.
Fluoride
A mineral that helps prevent caries by promoting the remineralization of enamel and inhibiting bacterial growth.
Orthodontics
A field of dentistry that focuses on diagnosing, preventing, and correcting malpositioned teeth and jaws.
Wisdom teeth
Also known as third molars, these are the last teeth to erupt and are often extracted due to lack of space or misalignment.
Root Canal Therapy
Dental procedure to treat infection at the centre of a tooth. It involves the removal of the tooth's pulp and filling of the root canal.
Dental Implant
A titanium post that is surgically placed into the jawbone beneath the gum to replace the root of a missing tooth and support a crown.
Veneers
Thin custom-made shells designed to cover the front surface of teeth to improve appearance by altering color, shape, size, or length.
Sealants
A protective plastic coating applied to the biting surfaces of back teeth to prevent cavities in pits and fissures.
Dental Bridge
A fixed dental restoration used to replace one or more missing teeth by joining an artificial tooth definitively to adjacent teeth or dental implants.
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