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A,
B, C, D, E,
F, G, H, I,
J, K, L, M,
N, O, P, Q,
R, S, T, U,
V, X, Z, W
- Abutment
- A tooth used to support a removable partial denture or anchor
a fixed partials denture
- A tooth used to support and retain the bridge.
- Accelerator
- A chemical agent that speeds up a chemical reaction.
- Accentuate
- To accent or emphasize something on the tooth.
- Acid Etching
- Acid applied to the underside of a veneer, porcelain onlay,
Microkur jacket or Dicor crown, to make microscopic indentations
in order to make the restoration adhere to the natural tooth
in a more stable manner.
- Acrylic resin
- The plastic material widely used in dentistry to make the
denture base.
- Aesthetics
- The visual attractiveness of natural teeth. the esthetic
qualities of the bridge are as important as the functional
qualities.
- Alginate
- An irreversible gelatinous substance used in an impression
material.
- Alloy
- A combination of two or more metals. Golds for casting,
wires, and solders are alloys.
- Alveolar bone
- The specialized bone structure which supports the teeth.
- Alveolar Ridge
- The bony ridge (alveolar process) of the maxilla or mandible
which contains the alveoli (sockets of the teeth).
- Amalgam
- An alloy of mercury and silver (with other alloying metls)
used as a restorative material and for making dies.
- Anatomical
- Life-like or real.
- Anatomist
- A skilled artist who analyzes and understands the relationships,
structures and functions of natural teeth.
- Anneal
- To soften a metal by controlled heating and cooling. Normally
done before bending or swaging.
- Anterior teeth
- Central incisors, lateral incisors, and canines of either
upper or lower arch.
- Antero-posterior
- Extending from the front backward.
- Articulate (teeth)
- To arrange the denture teeth in their proper positions in
the trial baseplate. To "set-up" the teeth, (casts). To bring
two casts together in occlusion. To mount the upper and lower
casts on articulator.
- Articulator
- A mechanical device upon which the casts of the mouth may
be mounted to simulate the relationship of the jaws.
- Articulating Paper
- "Specifically manufactured carbon paper, usually supplied
in strips, which is placed between the upper and lower teeth
to mark areas of heavy contact."
- Artificial stone
- Gypsum product similar to Plaster of Paris but with much
greater density and strength. May be colored to distinguish
it from plaster.
- Attached Gingiva
- The tissue that is attached to the root and underlying bone.
It extends from the base of the free gingiva to the mucogingival
junction.
- Auxiliary Groove
- A groove that starts in a dissectional groove.
- Axial
- The space formed between the curved proximal surface of
the teeth as they come into contact.
Top
- Backing
- A metal support which serves to attach a facing to a prosthesis.
- Balance (in occlusion)
- The simultaneous harmonious contacts of tooth surfaces in
different parts of the mouth which act to prevent tipping
of the denture.
- Balancing side
- The side opposite the working side of the dentition or denture.
- Base metal
- A metal such as a copper or iron not classified as a noble
metal.
- Baseplate
- A temporary form representing the base of a denture which
is used for making jaw relation records and for the arrangement
of teeth.
- Stabilized baseplate
- A baseplate lined with a plastic material to improve
its fit and stability
- Bennett movement
- The lateral shift of the ocndyle first described by a British
dentist.
- Bifurcation
- The point of division into two or more roots as found on
molars and some premolars. Implies a division into two roots.
- Bite
- An impression made by the doctor that shows how the patient's
upper and lower jaws come together in centric (sometimes done
in wax.) A term sometimes used to designate occlusion.
- Bite Block
- Consists of a base plate and wax or compound rims, used
to record vertical dimension- also referred to as a bite rim.
- Bolie Gauge
- A device used to measure lengths and widths of teeth.
- Boxing
- The placing of a retaining wall of wax around an impression
to confine the plaster or stone as the cast is poured.
- Bridge
- A restoration of one of more missing teeth which cannot
be readily removed, it is permanently attached to natural
teeth or roots which act as primary support.
- Broad Contact
- Area of contact about six millimeters square.
- Buccal
- Pertaining to the cheek; the surface of the tooth toward
the cheek.
-
-
- Buccal Depression
- "A shallow concavity on the buccal surface of a posterior
tooth at the point where the occlusal third meets the middle
third."
- Buccal frenum
- The string-like tissue which attaches the cheeks to the
alveolar ridge in the premolar region of each arch.
- Buccal Groove
- A landmark on the buccal surfaces of the mandibular and
maxillary molar teeth. It extends vertically from the occlusal
surface down toward the middle one-third.
- Bur
- A small rotating instrument used in the dental hand-piece
for preparing and/or removing cavities and grinding on teeth.
- Burnish
- The drawing or flattening out of a metal through pressure.
If a rounded instrument is repeatedly rubbed across the margin
of a soft gold casting, the gold is thinned and spread over
the tooth.
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- Calcification
- Deposits of lime salts in the formation of a tooth.
- Cantilever
- A bridge having one or more abutments at one end of the
pontic, the other end being unsupported.
- Cast
- A positive reproduction of an area of the oral cavity.
- Casting
- A metalic object formed in a mold. The act of forming a
casting in a mold.
- Cement
- A fluid or semi-fluid compound used to seal and retain a
restoration in a fixed position within or on a tooth.
- Cementum
- The bone-like tissue covering the root surfaces of the teeth.
It functions to provide for the insertion of fibers of the
periodontal membrane.
- Cementun-Enamel Junction
- The line on the surface of a tooth which marks the meeting
of the cementum and the enamel. The cervical line.
- Centric relation
- (1) The most posterior relation of the mandible to the maxilla
at the established vertical dimension.
- (2) The relation of the mandible to the maxilla when the
ocndyles are in their most posterior position in the glenoid
fossa from which unstrained lateral movements can be made
at the occluding vertical dimension normal for the individual.
- Centric occlusion
- The relations of opposing tooth surfaces which provide the
maximum planned contact and/or intercuspation.
- Central Dissection Groove
- "A groove in the occlusal surface of a posterior tooth that
runs from the mesial to the distal and dissects the tooth
into buccal and lingual parts."
- Central Fossa
- A shallow round depression found approximatelyin the middle
of the occlusal surface of a molar.
- Centric
- The relationship of the upper and lower teeth to one another
when the jaws are completely closed and at rest.
- Centric Stop
- The point where a cusp on one posterior tooth contacts a
fossa on the opposing tooth.
- Ceramic
- Having to do with the use of porcelain.
- Cervical Borders
- The extreme margin toward the root. It is located just above
the cervical line.
- Cervical Line
- The line around the surface of a tooth where the enamel
and cementum meet. Cingulum. The lingual lobe of anterior
teeth which is located in the gingival third of the lingual
surface.
- Clasp
- The metal part of a partial denture which partly encircles
an abutement tooth and helps to support, stabilize and retain
the denture.
- Collar
- The neck of an artificial tooth below the cervical line.
- Complete Denture
- "A dental prosthesis which is a substitute for the lost
natural dentition and associated structures of the maxillae
or mandible."
- Concavity
- Hollowed or rounded inward. Causes shadows on the surface
of teeth.
- Condyle
- The rounded end of a bone at the articular end of the mandible.
- Connector
- A term used in partial denture prosthesis meaning a bar
which connects two or more parts of the appliance:
- major connector
- - the rigid bar which connects the saddles or the major
parts.
- minor connector
- - the bar which connects clasps to frame.
- Contouring
- To shape so as to fit contours in conformity. Making teeth
that look like teeth.
- Convexity
- Curved or rounded outward like the surface of a sphere.
The arc that reflects light from a tooth, giving it shape.
- Coping
- A thin metal covering or cap over a prepared tooth which
supports the porcelain when applied.
- Crest of the Ridge
- "The high point of the tissue in the pontic region."
- Crossbite
- In posterior areas, a reversal of normal stamp cusp to opposing
fossa relationships. Opposing anterior teeth are said to be
in crossbite when normal horizontal overlap is reversed.
- Crown
- A fixed restoration of the major part of entire coronal
part of a natural tooth restoring the anatomy, function, and
aesthetics of the original tooth.
- Crown, Anatomical
- "That part of the natural tooth which is covered by enamel."
- Curve of Spee
- 1. Anatomic curvature of the occlusal alignment of teeth
beginning at the tip of the lower canine and following the
buccal cusps of the natural premolars and molars, continuing
to the anterior border of the ramus.
- 2. Anatomic line begining at the tip of the cuspids and
following the buccal cusps of the premolars and molars when
veiwed from the buccal aspect of the first molars.
- Curve of Wilson
- Curve that follows the cusp tips, as seen from the frontal
view.
- Crown, Clinical
- That part of the tooth which is visible in the mouth.
- Cusil
- Soft gasket liner in the opening of the denture for the
existing teeth
- Cusp
- A cone shaped elevation on the occlusal surface of a molar,
bicuspid, or cuspid.
- Cusp Ridge
- A raised part of the occlusal surface of a posterior tooth
that runs from a cusp tip to a fossa.
- Cusp Slope
- The mesial and distal sides of a cusp, which slope at an
angle of 35 to 45 degrees to the occlusal surface, marginal
ridge, and buccal and lingual dissectional grooves
- Cuspid
- The tooth with one cusp; the canine tooth.
- Custom Tray
- An Individual tray made from a preliminary impression and
cast which will be used to take the final impression. Usually
made of cold cure resin or shellac base plate.
Top
- Debbulizer
- A wetting agent to lower surface tension of an investment
so that it will flow more easily over the wax pattern.
- Deciduous teeth
- The first teeth of childhood which are later replaced by
the permanent dentition.
- Dental Arch
- The horseshoe like arrangement of upper and lower teeth.
- Dentin
- The tissue of the tooth underlying the cementum of the crown
which makes up the bulk of the substance of the tooth.
- Dentulous
- Having natural teeth present in the mouth and capable of
function.
- Denture
- An artificial substitute for missing natural teeth present
in the mouth and capable of function.
- Denture, Complete
- "A dental prosthesis which is a substitute for the lost
natural dentition and associated structures of the maxillae
or mandible."
- Denture, Immediate
- "A dental prosthesis constructed before removal of the teeth
and inserted at the time of extraction."
- Depression
- Hollow place on the surface of a tooth.
- Diastema
- A space situated between the teeth. Most commonly a space
between the upper central incisors.
- Diatorecs
- Retention holes inside the tooth.
- Die
- A positive reproduction of a tooth or preparation, usually
in epoxy or stone.
- Dissectional Groove
- "A groove that dissects a posterior tooth into two distinct
parts. A dissectional groove breaks through the occlusal table."
- Distal
- The side of the tooth farthest away from the median line
in the dental arch.
- Distal Fossa
- A shallow round depression found in the distal of the occlusal
surface of a molar or bicuspid.
- Distal Surface
- The surface of the tooth which lies farthest from the median
line following the curve of the dental arch.
Top
- Edentulous
- Without teeth. It may be a specific area, one arch or the
entire mouth.
- Embrasure
- A space around two teeth created by the sloping of the mesial
and distal surfaces from the contact point. The space is divided
into occlusal, incisal, facial, lingual, and gingival areas.
- Emergence Profile
- "The degree of rise of the gingival portion of a crown or
tooth from the margin or the cementum-enamel junction."
- Enamel
- The white, compact and very hard substance that covers and
protects the dentin of the crown of the tooth.
- Esthetics
- (1) The branch of philosophy dealing with beauty, especially
with the component thereof, vizual, color, form and arrangement.
- (2) The qualities involved in the appearance of a given
restoration.
- Equilibration of Occlusion
- To equalize. To remove high spots and areas of interference.
To adjust the contact areas between the upper and lower teeth
so that each tooth carries an equal share of occlusal load.
Top
- Face-bow
- A caliper-like device used to record the relationship between
the maxilla and condyles of the mandible and to transfer this
relationship to an articulator.
- Facial
- Pertaining to the face. The surface of the tooth or appliance
nearest the lips or cheeks.
- Facing
- The thin veneer of porcelain which closely fits a metal
backing, used in fixed and removable partial dentures.
- Finger Rest
- A metal extension that fits onto the crown for support.
- Fossa
- A round or angular depression in the occlusal surface of
a posterior tooth.
- Framework
- The metal understructure that supports the porcelain in
dental crowns and bridges.
- Free Gingiva
- The unattached marginal tissue which encircles the necks
of the teeth.
- Frenum
- The small band or fold of connective tissue covered with
mucous membrane which attaches the tongue, lips, and cheeks
to adjacent structures.
- Full Veneer Crown
- "Any type of restoration that fits over a prepared tooth."
Top
- Gingiva
- The part of the gum tissue and mucous membrane which immediately
surrounds a tooth.
- Gingival Margin
- The border of boundary between a tooth and a restoration
in the gingival area.
- Gingival Sulcus
- The point at which the free gingiva becomes joined to the
tooth surface.
- Glaze
- The final firing of porcelain which imparts a high gloss.
- Grinding-In
- (1) The act of correcting occlusal disharmonies;
- (2) Reshaping artificial teeth to bring about correct articulation
and appearance;
- (3) Fitting bridge facings, tube teeth, or crowns to their
place as part of a prosthesis.
Top
- Handpiece
- The instrument used to hold and spin burs and mounted pointed
on dental operations.
- High lip line
- The greatest height to which the lip is raised in normal
function or during the act of smiling broadly.
- Hue
- A color as seen in the visible spectrum, i.e., red, yellow,
blue, etc. (used when reffering to shade).
- Hydrocolloid
- A reversible hydrophylic impression material used extensively
in dentistry.
Top
- Immediate Denture
- "A dental prosthesis constructed before removal of the teeth
and inserted at the time of extraction."
- Impinge
- To force the tissue away from its natural position, causing
periodontal disorders.
- Impression
- A negative reproduction of the mouth.
- Incisal
- Pertains to the cutting edge of an anterior tooth.
- Incisal Edge
- The narrow biting edge or facet area of an anterior tooth.
- Incisive Papilla
- An area directly lingual to the two central incisors at
the midline of the mouth where nerves and blood vessels come
through the bone.
- Inlay
- A restoration made to fit inside a prepared tooth cavity
and then cemented into place.
- Interproximal
- Between adjoining tooth surfaces.
- Invest
- To surround or embed a pattern or object with a refractory
investment material for casting or soldering.
- Investment
- The material used to enclose or surround a pattern or a
dental restoration for casting or soldering.
Top
- Jacket Crown
- An unscientific term applied to complete veneer crowns constructed
entirely of porcelain of acrylic resin. Also called PJC (porcelain
jacket crown).
Top
- Labial
- The surface of an anterior tooth which lies closest to the
lips.
- Labial frenum
- The connective tissue "string" which attaches the upper
and lower lip to the alveolar ridge at or near the midline.
- Lateral movement
- Movement of the mandible to the sides. Rotation of the mandible
in a horizontal plane around one condyle.
- Lingual
- The surface of a tooth next to the to tongue.
- Lingual Band
- A metal reinforcement found on the lingual or porcelain-to-metal
crowns.
- Lingual bar
- A metal bar (cast or wrhought) used to connect the right
and left sides of a liwer partial denture.
- Long Axis
- An imaginary line that runs vertical through the center
of a tooth.
- Low lip line
- The lowest position of the lower lip during smiling or voluntary
reaction. The lowest position of the upper lip at rest.
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- Malocclusion
- Any deviation from a normal occlusion.
- Malleability
- The property of a metal which permits it to be extended
in all directions without breaking.
- Mandible
- The lower jaw.
- Margin
- The border or boundary as between a tooth and a restoration;
also, the outer edge of a crown or inlay.
- Marginal Ridges
- The elevations of enamel which form the mesial and distal
margins of the incisors and cuspids on the lingual, mesial,
and distal occlusal surfaces.
- Masking
- An opaque covering used as an undercoat so that metal will
not show through plastic or porcelain veneers.
- Master cast (model)
- The positive reproduction in stone made from an accurate
final impression. Master cast is surveyed and waxed up by
the technician and used to make the partial or complete denture.
- Mastication
- The process of chewing food for swallowing and digestion.
- Maxilla
- The upper jaw.
- Median line
- An imaginary line runing vertically through the center of
the face. It is marked on the occlusion rim as a guide to
placement of the central incisors.
- Mesial
- Toward the medial line. That surface of a tooth towards
the medial line.
- Mesial Fossa
- A shallow round depression found in the mesial of the occlusal
surface of a molar or bicuspid.
- Midline
- An imaginary line which extends vertically through the middle
of the face. Also the midline of a model through the centrals.
- Molar
- One of twelve teeth in a person; located distal tot he second
bicuspid on each side of each arch.
- Mould (Mold)
- (1) A term used to specify the shape and size of a tooth
according to a certain system of classification.
- (2) A form in which an object is cast or formed.
- Mould chart
- A chart depicting the moulds available in a given line of
artificial theeth and listing their dimensions and combinations
with appropriate lowers or posteriors.
- Mounting
- The laboratory procedure of properly attaching a cast to
an articulator.
Top
- Noble metal
- A metal not easily oxidized. Example: gold. platinum. Opposite
of base metal.
Top
- Oblique Ridge
- A ridge that runs at an angle to the central dissectional
groove across the occlusal surface of a posterior tooth.
- Occlude
- To bring together. To bring the mandibular teeth into contact
with the maxillary teeth.
- Occlusal Anatomy
- 1) The physical features of the biting surfaces of the posterior
teeth.
- 2) Pertaining to the masticating (chewing) surface of the
posterior teeth. Occlusal Surface. The surface of a bicuspid
or molar that contacts a tooth on the opposite jaw when the
mouth is closed.
- Occlusal Table
- The Perimeter of the occlusal surface.
- Occulsion
- The relationship between the opposing surfaces of upper
and lower teeth when they are in contact either in the mouth
or on an articulator.
- Occlusion rim
- Occlulding surfaces built on baseplates for the purpose
of recording maxillomandibular relationships. Also used as
a base for arranging the teeth.
- Onlay
- A restoration ( metal or porcelain) made to fit over the
prepared tooth.
- Opaque
- A covering used as an undercoat so that metal will not show
through plastic or porcelain.
- Operative Model
- The positive model of the patient's mouth that is made after
the teeth have been prepared by the doctor.
- Overbite
- Vertical overlap of the upper teeth over the lower teeth.
- Overjet
- Horizontal protrusion of the upper anteriors beyond the
lowers.
Top
- Palate
- The roof of the mouth.
- Cleft palate
- An opening in the palate. It may be in the hard or soft
palate or both and may be present from birth or caused
by surgery, disease, or accident.
- Hard palate
- The anterior portion of the palate composed of an underlying
base of bone covered by soft tissue.
- Soft palate
- The posterior portion of the palate composed primarily
of connective and muscle tissue.
- Papilla
- A small nipple shaped elevation.
- Incisive papilla
- A rounded projection at the anterior end of the palate.
- Interdental papilla
- The triangular pad of gum which fills the space between
the necks of the teeth.
- Parallel
- Lines or surfaces which may be extended infinitely without
meeting.
- Partial Denture
- A dental prosthesis which restores one or more, but less
than all of the natural teeth and/or associated parts and
which is supported by the teeth an/or the mucosa; it may be
removable or fixed.
- Periodontal Membranes
- The connective tissue fibers emerging from the gingiva to
attach the gingiva tissue to the cemental surface.
- Periodontally Contoured
- Constructed so as to preserve the supporting structure of
tissue and bone.
- Pontic
- That part of a fixed bridge which is suspended between abutments
and which replaces a mixing tooth or teeth.
- Porcelain
- A tooth colored sand like material much like enamel in appearance.
Used in dentistry for inlays, onlays, jacket crowns, denture
teeth, fixed partial denture pontics, and complete veneer
crowns.
- Post
- The metal projection of a crown that extends into the root
of a pulpless tooth.
- Post dam
- The seal at the posterior border of a denture. Preferred
term is posterior palatal seal.
- Posterior Tooth
- A tooth having an occlusal surface, such as the bicuspids
and molars.
- Precious Metal
- A metal that is highly resistant to corrosion and oxidation.
Gold and Platinum are examples.
- Precision Attachment
- A specially machined male or female part used in some removable
partial dentures for attachment of the appliance to the abutment
tooth.
- Preoperative Model
- The study model of the patient's mouth made before any tooth
preparation has been done by the doctor.
- Primary Anatomy
- All physical features of a tooth except the secondary grooves.
- Prosthesis
- An artificial replacement for a lost part. in dentistry,
it is used strictly for dental replacement.
- Prosthodontics
- The art and science of replacing missing natural teeth and
associated tissues with fixed or removable artificial substitutes
for the purpose of restoration and maintenance of oral function,
health, comfort and appearance.
- Protrusive bite (occlusion)
- contact relation of the upper and lower teeth when the mandible
is brought forward with the anteriors edge to edge.
- Proximal surface
- The surface of a tooth which lies next to another tooth.
Nearly always the mesial or distal surface unless the tooth
is rotated.
- Pulp
- The connective tissue found in the pulp chamber and canals.
It is made up of arteries, veins, nerves, lymph tissue, and
connective tissue.
Top
- Quadrant
- One forth of the mouth. One half of either arch.
- Quality Teeth
- Teeth which have all of the anatomical landmarks consistently
found in natural teeth.
Top
- Ramus
- The ascending part of the mandible
- Rebase
- A process of refitting a denture by replacement of the denture
base material on a new cast without changing the occlusal
relations of the teeth.
- Reciprocity
- The principle in clasping which holds that each force on
a tooth must be balanced by an equal and opposite force to
prevent movement of the tooth.
- Refactory
- A cast made of heat resistant material.
- Relief
- The reduction or elimination of pressure from a specific
area under a denture base.
- Reline
- To resurface the tissue side of a denture with new base
material to make it fit more accurately.
- Removable partial denture
- A partial denture which may be removed and replaced by the
patient.
- Rest
- A rigid (stabilizing) extension of a partial denture with
new base material to make it fit the ridge more accurately.
- Resorption
- The gradual reduction in volume and size of the alveolar
portion of the mandible or maxilla.
- Retainer
- (1)Any type of clasp, attachment, or device used for fixation
or stabilization of a prosthesis.
- A device used by orthodontists to maintain teeth in the
desired position after orthodontic treatment.
- Retromolar pad
- A mass of tissue usually pear-shaped, which is located at
the distal termination of the mandibular residual ridge (right
behind the last molar).
- Ridge
- The remainder of the alveolar process and its soft tissue
covering after the teeth are removed.
- Rugae
- The irregular ridges found in the anterior region of the
upper hard palate. They aid in speech and manipulation of
food by the tongue.
Top
- Saddle (base)
- The part of a partial denture, upper or lower, which fits
on the alveolar ridge and in which the teeth are held.
- S (Reverse "S") Groove
- A curving groove that forms one side of an oblique or transverse
ridge. Also called a secondary groove.
- Secondary Anatomy
- The secondary grooves on the occlusal surface of a posterior
tooth.
- Secondary Groove
- A groove that defines one side of an oblique or transverse
ridge. Secondary grooves do to break through the occlusal
table.
- Set up
- (noun) A broad term usually denoting a full upper
and lower arrangement of teeth in wax. (verb) The act
of arranging and positioning artificial teeth in a complete
or partial denture.
- Shade Guide
- Samples of color which are available in manufactured teeth.
- Shade selection
- The determination of the color (hue, brilliance, saturation)
of an artificial tooth or set of teeth for a given patient.
- Silaned
- A substance applied over an eched area of a veneer to protect
the etching.
- Solder
- To join two metals with a third metal by heating.
- Splint
- (1) In regards to crown and bridge; a means of joining two
abutments on a bridge or two single crowns, either by casting
as one unit or by soldering together.
- (2) An appliange for the fixation of movable, displace,
or fractured parts.
- Sprue
- Wax or metal used to form the aperture or passageway for
molten metal to flow into a mold to make a casting; also the
metal which later fills the sprue hole.
- Stone
- A plaster-like substance, the grains of which are much less
porous than those of plaster.
- Sulcus
- A groove or depression on surface of a tooth
- Surveying
- The procedure of locating and outlining the contour and
position of abutment teeth and associated structures on the
master cast before designing a removable partial denture.
The purpose is to determine the most favorable path of insertion
for the partial and to mark survey lines on the teeth to aid
in the development of a suitable design for the metal frame
work.
- System
- An assemblage of organized ideas and principles intended
to explain the arrangement or working of a systematic whole.
A harmonious arrangement.
- Systematic
- Methodical in procedure; a plan marked by thoroughness and
regularity.
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- Teeth, anatomic
- Artificial teeth which closely duplicate the form and appearance
of natural teeth.
- Teeth, non-anatomic
- Teeth whose occlusal surfaces are based on mechanical rather
than anatomic forms.
- Teeth, plastic
- Artificial teeth constructed of synthetic resins.
- Teeth, porcelain
- Artificial teeth constructed of feldspar, kaolin and silica.
Porcelain teeth are attached to a partial using mechanical
retention (unlike acrylic teeth which use chemical retention).
Porcelain anterior teeth have a metal pin on the neck which
is inserted in the denture. Porcelain posterior teeth have
a diatoric hole on the neck to create the retention. The base
material fills in the hole and when hardened creates a lock.
- Teeth, tube
- Artificial teeth constructed with a vertical, cylindric
aperture extending from the center of the base up into the
body of the tooth into which a pin may be placed or cast for
the attachment of the tooth to a restoration.
- Teeth, zero degree
- Posterior teeth having a flat occlusal surface.
- Transverse Ridge
- The ridge of enamel forced formed at the junction of buccal
and lingual ridges on the occlusal surface of a molar or bicuspid.
- Trifurcation
- The point at which a tooth divides into three roots.
- Try-in
- A preliminary insertion of a wax-up trial denture, partial
denture casting or fnished restoration to determine the fit,
esthetics, maxillomandibular relations, etc.
- Tuberosity
- A bulge sometimes found at the posterior end of the maxillary
ridge.
Top
- Undercut
- Any area of the master cast below the height of contour
which may effect insertion or removal of a prosthesis.
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- Veneer
- A thin layer.
- Vertical dimension
- A vertical measurement of the face between any two arbitrarily
selected points which are conveniently located, one above
and one below the mouth, usually in the midline.
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- Wear Facets
- Worn surfaces caused by one tooth touching another tooth.
Working Occlusal contacting of the teeth o the side toward
which the mandible is moved.
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