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208 Cards in this Set

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  • Back
Alveolus
A small cell or cavity, hence a tooth socket, alveolus dentalis
Anatomic crown
portion of tooth covered with enamel
Bifurcation
a division into 2 parts, as any two roots of a tooth
Carabelli’s cusp
an accessory cusp often noted on the lingual surface of the maxillary molar mesiolingual cusp
Central Fossa
a relatively broad deep angular valley in the central portion of the occlusal surface of a molar
Cervical line
a line formed by the junction of enamel and cementum (CEJ)
Cervix (pl. cervices)
a narrow or constricted portion of a tooth in the region of the junction of crown and root
Cingule
a small cusp or tubercle on the lingual face of the tooth
Cingulum (pl. cingula)
the ridge or tubercle on the lingual face of the tooth near the gingiva
Clinical crown
the portion of crown visible in oral cavity
Contact area
that region of the mesial or distal surface that touches the adjacent tooth in the same arch
Coronal
of or pertaining to a crown; applied by some to the occlusal surface
Crest
the sinous cusps or enamel ridges on the molars of herbivore; a projecting ridge or structure
Crown
that portion of the tooth covered with enamel, which is normally visible in the oral cavity. See anatomic and clinical crown
Cusp
a pronounced elevation on the occlusal surface
Cusp Ridges
elevations which extend in a mesial and distal direction from cusp tips. They form the buccal and lingual margins of the occlusal surfaces of posterior teeth
Denticles
calcareous bodies which serve the purposes of teeth; a concretion which develops in the dental pulp as a part of the aging process
Developmental groove
marks the fusion areas between adjacent cusps and other major parts of a tooth
Embrasure
a “V-shaped” space between the proximal surfaces of two adjoining, contacting teeth
Fissure
a cleft or crevice in a tooth surface resulting from the imperfect fusion of the
enamel of the adjoining cusps or lobes
Foramen (foramina)
a passage perforating hard tissues that transmits either vessels and or nerves
Fossa
a shallow depression or concavity on the surface of the tooth (see central f, lingual f, triangular f)
Furcation
the region of a multi-rooted tooth where the roots divide
Groove
a shallow, linear depression on the surface of a tooth (see supplemental g, developmental g)
Incisal Ridge
The incisal portion of an anterior tooth
Lingual Fossa
A broad, shallow depression on the lingual surface of an incisor or canine.
Lobe
A division of a tooth crown formed from a distinct point of calcification
Mamelon
A rounded or conical prominence on the incisal ridge of a newly erupted incisor.
Marginal Ridges
Elevated crests which form the mesial and distal margins of the occlusal surfaces of the posterior teeth, and the lingual surfaces of the anterior teeth.
Nidus (pl. Nidi)
A place in which something is nurtured
Oblique ridge
An elevated crest comprised of the triangular ridge of the distobuccal cusp and the distal ridge of the mesiolingual cusp.
Pit
A sharp depression usually located at the junction of two or more developmental grooves or at the termination of a single developmental groove.
Proximal root concavity
A depression extending longitudinally on the mesial or distal surface of a root.
Pulp canal
The narrow area of the pulp chamber within the root. (Root canal
Pulp chamber
The expanded cavity within the tooth that contains the pulp
Ridge
A liner elevation on the surface of a tooth.
Root
The portion of a tooth covered with cementum and normally embedded in the alveolar process.
Root canal
See pulp canal.
Root trunk
That portion or a multirooted tooth between the cervical line and furcation of the roots.
Ruga (pl. rugae)
A fold or crease. The irregular ridges of the membrane of the palate.
Saccule
A small sac or cyst.
Sulcus
An elongated valley in the surface of a tooth formed by the inclines of adjacent cusps or ridges which meet at an angle.
Supplemental groove
indistinct liner depression, irregular in extent and direction that does not demarcate major divisional portions of a tooth.
Transverse ridge
The triangular ridges of a buccal and a lingual cusp that join to form a more or less continuous elevation extending transversely across the occlusal surface of a posterior tooth.
Triangular fossa
A shallow depression on the occlusal surfaces of posterior teeth located within the confines of the mesial or distal marginal ridges.
Triangular ridges
Prominent elevations, triangular in cross-section, which extend from the tip of a cusp towards the central portion of the occlusal surface of a tooth.
Trifurcation
A division into three parts or branches, as the three roots of a maxillary first molar.
Tubercle
A small elevation on the crown of a tooth possibly by excessive accumulation of enamel.
Cementum
the bone-like covering of the root
Dentin(e)
calcified tissue that comprises the bulk of a tooth. It is covered by the harder enamel and softer cementum
Enamel
the hard substance composed of 90% hydroxyapatite, and 6-8% calcium
carbonate covering the anatomical crown of the tooth
Gingiva
the fibrous and mucous tissues that surround the teeth and cover the alveolar tissues
Gum
the gingiva; the soft tissue around the tooth
Mandible
The bone forming the lower jaw and supporting the inferior teeth
Mandibulae
The collective term for both the mandible and maxilla.
Maxilla
The bone supporting the superior teeth and forming part of the orbit, hard palate and the nasal cavity.
Periodontium
The soft tissue surrounding a tooth
Pulp
The soft tissue within the pulp cavity consisting of connective tissue containing blood vessels, nerves, and lymphatics.
Abrasion
tooth wear that is the result of non-masticatory movements
Anodontia
failure of the teeth to form
Anomaly
unusual variations in position, number and conformation of dentition
Attivism; Atavistic
recurrence of a peculiarity of an unknown ancestor
Attrition
physiological wearing of a tooth caused by mastication
Bruxism
the clenching or grinding of the teeth
Diastema (pl. diastemata)
a space between 2 adjacent teeth in the same dental arch, especially the space between the upper lateral incisor and the canine in the carnivora or; in humans, a space between the maxillary central incisors.
Dilaceration
abnormal curvature of the crown or root
Distomolar
a supernumerary tooth found to the distal of the molars
Erosion
the loss of tooth substance by non-bacterial chemical action
Exfoliation
the loss of deciduous teeth after the physiological resorption of the roots
Facet
the flattened area of enamel or dentin produced by wear
Hyperdontia
the condition of excess teeth; supernumerary teeth
Hypodontia
partial absence of teeth
Hypsodont (Hypsodonty)
Having long teeth; a marked elongation of the crown or body of the tooth; a marked elongation of the cusps.
Idiopathic
An unknown cause.
Interproximal Contact Facets
Flattened areas on interproximal surfaces that result from wear.
Macrodontia
Relatively large teeth (generalized); a large single tooth; also occasionally referred to as “megadont”.
Mesiodens
The most common supernumerary tooth usually appearing between the maxillary incisors.
Mesodont
Having medium-sized teeth.
Microdont
Having an abnormally small tooth or teeth.
Odontogenesis
The development and formation of the teeth.
Oligodontia
Absence of many teeth.
Paramolar
A supernumerary found to the buccal or lingual of the molars
Supernumerary
Having more than the usual number (of teeth).
Taurodont
A tooth with a large pulp chamber in relation to the crown.
Anterior teeth
the incisors and canines
Arcade
the set of arches formed by the teeth
Arch
the curved composite structure formed by the teeth
Bicuspid
having 2 cusps; inappropriately used for all premolars
Canine tooth
the first tooth posterior to the intermaxillary suture above and its opponent below; preferable to “cuspid”
Cheek tooth
the molars and premolars, posterior teeth
Cuspid
having a cusp or point; inferior term for canine teeth
Deciduous
the first set of a series of teeth that are replaced by a permanent set
Dentition
the natural teeth considered collectively in the dental arches
Incisor
One of the cutting teeth in humans; the most anterior (mesial) teeth in the jaw.
Molar teeth
The posterior (distal) 3 teeth in each quadrant of the oral cavity in homo sapiens
Posterior teeth
The premolar and molar teeth
Permanent teeth
The set of teeth that replace the first (deciduous) set of teeth in humans.
Premolar tooth
The 2 teeth anterior (mesial) to the molars in homo sapiens; mistakenly termed the bicuspids.
Quadrant
One quarter of the oral cavity, i.e., the maxillary right and left quadrants and the mandibular left and right.
Secodont
Sectorial or cutting teeth.
Succedaneous
Those permanent teeth that succeed or take the places of the deciduous teeth.
Amphicone
the result of the initial splitting of the eocone as theorized in the premolar-molar analogy theory.
Anisognathous
having the upper molars unlike the lower in size and pattern
Ankylosis
fusion of teeth to the jaw bones in some animals, rarely in humans
Artiodactyla
even-toed ungulates ex. Cattle, hog, sheep, deer
Asymmetry
A lack of similarity in shape or size between two parts
Bilophodont
having two ridges of crests on molar crowns
Brachydont
the length of the root exceeds that of the crown
Bulbous
rounded
Bunodont tooth
the tooth crown supports low rounded cusps
Carnassial
long bladed premolars and molars especially P4/M1 of the carnivore
Carnivora
flesh eating mammals
Coalescence
the structural union of like parts, as the coalescence of the root
Concave
having a depressed or hollow surface
Concrescence
a union of previously separate parts; uniting of teeth by cementum only
Conical
shaped like a cone
Converge
to come together
Convex
bulging outward
Crucial or cruciate
having the form of a cross, cruciform
Cynodonts
Triassic reptiles that possessed some mammal-like features of skull and teeth
Dentate
having teeth
Denticulate, Denticulated
finely notched or serrated; having small teeth
Dentigerous
bearing or supporting teeth; supplied with teeth; also containing teeth, as a (blank) cyst
Diphyodont
having two sets of teeth
Entoconid
the distolingual cone or cusp of the talonid of the mandibular molars
Eocone
the first, single coned tooth observed in prehistoric reptiles according to the premolar-molar analogy theory
Ginglymoid
hinged, as the jaw articulation of the carnivore; a joint that allow motion around an axis
Gnathic
pertaining to the jaw cheek
Gomphosis
attachment of the teeth by implantation in a bony socket or alveolus
Haplodont
having undivided or simple tooth crowns in the shape of a single crown
Herbivore
an animal whose diet consists principally of plants
Heterodont
having teeth that are morphologically different
Homodont
having teeth that are morphologically the same
Hypocone
the distolingual cusp of maxillary molars
Hypoconid
the distobuccal cusp of mandibular molars
Hypoconulid
the distal cusp, the fifth cusp of mandibular molars
Isognathous
Having maxillary and mandibular teeth of the same size and pattern.
Lophodont
Having the crowns of the teeth formed in transverse or longitudinal crests or ridges, as in the herbivore.
Metacone
The distobuccal cone or cusp of the maxillary molars.
Metaconid
The distolingual cone or cusp of the primitive mandibular molars, becoming mesiolingual due to the loss of the paraconid cusp in the Primates.
Metaconule
Small, intermediate cusp between the metacone and the protocone of the maxillary molars.
Monophyodont
Having only one set of teeth
Morphology
The study of the shape and structure of an organism
Multitubercular
A tooth crown having many tubercles or cusps
Oblong
Deviating from square by having one long dimension.
Odontography
A description of the teeth.
Paracone
The mesiobuccal cusp of the maxillary molars
Paraconid
mesiolingual cusp of mammalian mandibular molars. (This cusp has been lost in primates).
Perissodactyle
Odd-toed ungulates such as the horse, tapir, rhinoceros.
Polylophodont
Having multiple lophs or cusps.
Polyphyodont
Having multiple sets of teeth.
Procumbent
Leaning or extending forward; like the incisors in Insectivores.
Protocone
The lingual cusp of a maxillary premolar, the primitive reptilian cone or cusp of a maxillary tritubercular molar, i.e., the lingual cusp or the mesiolingual cusp of a maxillary molar.
Protoconid
The primitive buccal cusp of a mandibular premolar; the primitive reptilian cone or cusp of a mandibular tritubercular molar, or the mesiobuccal cusp of a mandibular molar.
Quadritubercular
Having four tubercles or cusps.
Quinquetubercular
Having five tubercles or cusps.
Ruminantia or Ruminants
Artiodactyl animals that chew the cud, as oxen, sheep, goats, deer, and others.
Sectorial tooth
The cutting tooth of the Carnivora - a long-bladed premolar or molar; a carnassial tooth.
Shear
To cut as with a pair of scissors.
Slenodont
Having longitudinal crescent shaped ridges, as a molar tooth of the Artiodactyla (ox, deer, sheep, hog, etc.).
Symmetrical
Having the same shape or size on both sides.
Talon
The distolingual prominence or heel of a maxillary molar crown, bearing the hypocone, or distolingual cusp.
Talonid
The heel, or distobuccal portion of a mandibular molar crown, upon which may develop the entoconid, the hypoconid and the hypoconulid.
Thecodont
Persisting alveolar sockets that are independent of the presence or teeth, as in crocodiles and alligators.
Tribosphenic
See triconodont.
Triconodont
Having three cones or cusps in a linear arrangement, the central one the largest.
Triconodonta
Jurassic animals, unmistakably mammals, which show a triconodont condition of the molars.
Trigone
The arrangement of the first three cones or cusps of a maxillary molar (Metacone, Paracone + Protocone).
Trigonid
The arrangement of the first three cones or cusps of a mandibular molar (Protoconid, Paraconid + Metaconid).
Tritubercular
Having three tubercules or cusps on the occlusal surface.
Truncate, or Truncated
Cut off or terminated abruptly.
Tusk
A prominent incisor or canine tooth which protrudes some distance beyond the lips, as the (blank) of an elephant, narwhale, or a walrus.
Ungulates
Hoofed mammals.
Vomerine teeth
Teeth attached to the vomer in the roof of the oral cavity of certain fishes, amphibia, and reptiles.
Angle
the junction of 2 or more surfaces
Anterior
toward the front of the body
Apex
the terminal end or tip of the root
Apical
toward the apex of the root
Articulation
the contact relationship of the occlusal surfaces of the teeth during jaw movement
Axial
pertaining to the longitudinally (long) axis of the tooth
Buccal
next to or toward the cheek in posterior teeth
Buccally
toward the cheek
Buccolingual
from the posterior tooth surface facing the cheek to that facing the tongue
Cementoenamel Junction
junction of enamel and cementum; cervical line (CEJ)
Distal
away from the median line
Distal surface
the surface of the tooth facing away from the median line following the
curve of the dental arch
Distobuccal
relating to the distal and buccal portion of the tooth
Distolingual
relating to the distal and lingual portion of the tooth
Facial surfaces
the labial and buccal surfaces collectively
Incisal Surface
The cutting edge of the anterior teeth, particularly the incisors.
Interproximal
Between adjoinging surfaces; the proximal surfaces.
Labial
Next to or toward the lips; of, or pertaining to the lips.
Labial Surface
The surface of an anterior tooth positioned immediately adjacent to the lip.
Labiolingual
the anterior tooth surface facing the lips to the surface facing the tongue.
Line Angle
That angle formed by the junction of two surfaces along a line, e.g., the mesiobuccal angle.
Lingual
Next to or toward the tongue; pertaining to the tongue
Lingual Surface
The surface of a tooth which faces the tongue; opposite of the facial surface.
Mesial
Toward the median line.
Mesial Surface
The surface of a tooth facing toward the median line following the curve of the dental arch.
Mesiodistal
From the surface facing the midline to the surface facing away from the midline following the arch curvature.
Midline
A line passing through the center.
Occlude
To bring the mandibular tooth into contact with the maxillary teeth.
Occlusal
Toward the biting surface of a posterior tooth; pertaining to occlusion.
Occlusal surface
The surface of a premolar or molar contained within the marginal and cusp ridges.
Occlusion
The relation between the incising and occluding surfaces of the maxillary and mandibular teeth when they are shut; Any contact between the incising or masticating surfaces of the teeth.
Point angle
The angle formed by the junction of three surfaces at a point, e.g. the mesiolabioincisal angle.
Proximal surface
The surface of a tooth that faces toward an adjoining tooth in the same arch, i.e., the mesial or distal surfaces.
Thirds
Imaginary divisions of a tooth crown or root as to length (i.e., occlusal, middle, and gingival thirds) or mesiodistal breadth (i.e. mesial, middle, and distal thirds).