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Dental Assisting

Terms in this set (59)

Torus Palatinus
1. benign bony growth at midline palate,
Torus Mandibularis
A bony overgrowth on the lingal surface of the mandible near the premolars and molar areas
Impaction
Any tooth that remains unerupted in the jaws beyond the time at which it should normally erupt
Anatomic Crown
Portion of the tooth that is covered with enamel
Clinical Crown
Portion of the tooth that is visible in the oral cavity
Cervix
The location where the crown of the tooth and its roots meet
Cementoenamel Junction
The location where the enamel, which covers the crown of the tooth, and the cementum, which covers the root of the tooth, meet
Enamel
The hardest and most highly mineralized substance in the human body
Dentin
Hard portion of the root that surrounds the pulp and is covered by enamel on the crown and by cementum on the root
Cementum
Specialized, calcified connective tissue that covers the anatomic root of the tooth
Pulp
The part in the center of the tooth made up of living connective tissue and cells called odontoblasts
Periodontal Ligament
Commonly abbreviated as P D L, a group of connective tissue fibers that essentially attach a tooth to the alveolar bone within which sits
Lining Mucosa
Mucous membrane that covers the inside of the cheeks, vestibule, lips, soft palate, and underside of the tongue and acts as a cushion for underlying structures
Submucosa
A layer of loose connective tissue beneath a mucous membrane
Masticatory Mucosa
Oral mucosa that covers the hard palate, dorsum of the tongue, and gingiva
Labia
The gateway to the oral cavity, commonly known as lips
Vestibule
Space between the teeth and the inner mucosal lining of the lips and cheeks
Gingiva
Masticatory mucosa that covers the alveolar processess of the jaws and surrounds the necks of the teeth; plural, gingivae
Palate
The roof of the mouth, separating the cavities of the nose and the mouth in vertebrates
Pit
Results when two developmental grooves cross each other, forming a deep area that is too small for the bristle of a toothbrush to clean
Fissure
A fault along a developmental groove on the occlusal surface that is caused by incomplete or imperfect joining of the lobes during tooth formation.
Eruption
The movement of the tooth into its functional position in the oral cavity
Bifurcation
Divided into two
Apex
Tapered end of each root tip
Apical
The tip of the root of a tooth
Periapical
Radiographic view that shows the crown, root tip, and surrounding structures
Pulp Chamber
Space occupied by the pulp
Periodontium
Structures that surround, support, and are attached to the teeth
Labial Frenum
Band of tissue that passes from the facial oral mucosa at the midline of the arch to the midline of the inner surface of the lip; also called frenulum; plural frenula
Midline
The midsagittal line of maxillary and mandibular dental arches possessing teeth of ideal size, shape, and position when situated in maximum intercuspation
Dentition
Natural teeth in the dental arch
Primary Dentition
The first set of 20 primary teeth
Permanent Dentition
The 32 secondary teeth or "adult teeth"
Mixed Dentition
A mixture of permanent and primary teeth that occurs until all primary teeth have been lost, usually between ages 6 and 12
Maxillary Arch
Upper arch
Mandibular Arch
Lower Arch
Quadrant
1/4 of the dentition
Anterior
Towards the front
Posterior
Towards the back
Incisors
Single-rooted teeth with a relatively sharp, thin edge located at the front of the mouth
Canines
A.K.A cuspids located at "corner" of the arch. Designated for cutting and tearing foods
Premolars
Bicuspids, cross between canines and molars
Molars
Have 4 or more cusps used for grinding and chewing up food
Contact Area
Area of the mesial or distal surface of a tooth that touches the adjacent tooth in the same arch
Contact Point
The exact spot at which the teeth actually touch each other
Embrasure
Triangular space in a gingival direction between the proximal surface of two adjoining teeth in contact
Occlusion
The natural contact of the maxillary and mandibular teeth in all positions
Centric Occlusion
Maximum contact between occluding surfaces of the maxillary and mandibular teeth
Functional Occlusion
Contact of the teeth during biting and chewing movements
Malocclusion
Occlusion that is deviated from class I normal occlusion
Interproximal Space
Area between adjacent tooth surfaces
Furcation
Area between two or more root branches
Fossa
Wide, shallow depression on lingual surfaces of anterior teeth
Erosion
Wearing away of tissue
Lesion
Area of pathology
Xerostomia
Dryness of the mouth caused by reduction of saliva
Abscess
Localized area of pus originating from an infection
Hazardous Waste
Waste the poses a danger to humans or to the environment
Anaphylaxis
Extreme hypersensitivity to a substance that can lead to shock and life-threatining respiratory collapse
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