Chapter 32: Identification of Restorations, Dental Materials & Foreign Objects Flashcards
Principles and Description of Restorations, Dental Materials and Foreign Objects
Define the term: metallic restoration
- restorations that completely absorb x-rays; as a result, little to no radiation contacts the receptor (appears radiopaque)
- (ex: amalgam, gold)
Define the term: interproximal
between two adjacent surfaces
Define the term: radiopaque
the portion of an image that is light or white, due to the structure resisting the passage of the x-ray beam and limiting the amount of x-rays that reach the receptor
Define the term: nondeciduous teeth
permanent teeth that do not replace a primary/deciduous tooth (permanent first, second, and third molars)
Define the term: anterior teeth
central incisors, lateral incisors, and canines/cuspids
Define the term: tooth-bearing areas
regions of the maxilla and mandible in which the 32 teeth of the human dentition are normally located
How do composite resin restorations appear on an image?
mostly radiolucent (some may appear more radiopaque)
Define the term: dentin
the tooth layer found between the enamel and surrounding the pulp cavity (appears radiopaque)
Define the term: maxilla
the upper jaw
Define the term: mesial
the tooth surface towards the midline of the mouth
Define the term: vital
living
Define the term: inter-radicular
between the roots of adjacent teeth
How do metallic retentive pins appear on an image?
radiopaque
How do eyeglasses appear on an image?
radiopaque
Define the term: periodontium
specialized tissues that surround and support teeth, such as the gingiva, cementum, periodontal ligament, and alveolar bone
Define the term: nonvital
not living
How do nonmetallic restorations appear on an image?
radiolucent
How do restorative base materials (ex: zinc oxide-eugenol, zinc phosphate cement) appear on an image?
radiopaque
Define the term: mandibular teeth
teeth located in the mandible or lower arch
Define the term: interpret
to offer an explanation
How do metallic restorations appear on an image?
radiopaque
Define the term: maxillary teeth
teeth located in the maxilla or upper arch
Define the term: anterior
towards the front
How do endosteal implants appear on an image?
radiopaque
Define the term: irregular radiopacity
a term used to describe a radiopacity viewed on a dental image that has irregular, ill-defined borders
Define the term: pulp cavity
a cavity within a tooth that includes both the pulp chamber and the pulp canals, containing blood vessels, nerves, and lymphatics (appears radiolucent)
How do endodontic silver points appear on an image?
radiopaque
Define the term: endodontic patient
a patient who has undergone endodontic therapy
Define the term: lingual
the tooth surface towards the tongue
Define the term: cementum
calcified connective tissue that covers the outer root surface of the tooth
Define the term: mandible
the lower jaw
Define the term: pericoronal
around the crown of a tooth
How do porcelain restorations appear on an image?
radiopaque
Define the term: buccal
the tooth surface towards the cheek on posterior teeth
How does jewelry appear on an image?
radiopaque
Define the term: radiolucency
an area on a dental image appears radiolucent ((dark/black) due to readily allowing the passage of the x-ray beam so that more x-rays reach the image receptor
Define the term: contact areas
the areas where adjacent tooth surfaces touch each other
Define the term: radiolucent
the portion of an image that is dark or black, due to the structure readily permitting the passage of the x-ray beam and allowing more x-rays to reach the image receptor
Define the term: edentulous
- without teeth
- an area where teeth are no longer present
Define the term: alveolar process
portion of the maxilla or mandible that encases and supports teeth
Define the term: opposing
maxillary and mandibular teeth that occlude together
Define the term: multilocular
a term used to describe a radiolucent lesion on a dental image that exhibits multiple compartments
How do hearing aides appear on an image?
radiopaque
Define the term: intraoral
inside the mouth
Define the term: facial / labial
the tooth surface towards the cheek/lips on anterior teeth
Define the term: alveolar crest / crestal bone
- the most coronal portion of alveolar bone found between teeth
- composed of cortical bone (appears radiopaque)
How do stainless steel crowns appear on an image?
radiopaque
Define the term: dentulous
- with teeth
- areas that exhibit teeth
Define the term: posterior teeth
first and second premolars/bicuspids, and first, second and third molars
Define the term: primary teeth / deciduous teeth
baby teeth
Define the term: cervical / gingival
the tooth surface towards the gumline/cervical third area
Define the term: posterior
towards the back
How do cast metal post and core restorations appear on an image?
radiopaque
Define the term: distal
the tooth surface away from the midline of the mouth
Define the term: ghost image
an artifact on a dental image produced when a radiodense object (ex: earring) is penetrated twice by the x-ray beam (appears radiopaque)
How does the chain of the patient bib/napkin appear on an image?
radiopaque
Define the term: enamel
- the outermost layer of the crown of the tooth (appears radiopaque)
- the densest structure in the human body
Define the term: endodontic
found within a tooth
How does gutta percha appear on an image?
radiopaque
Define the term: nonmetallic restoration
- restorations that do not completely absorb x-rays (ex: porcelain, composite, acrylic)
- vary in appearance from slightly radiopaque to radiolucent, depending on the density of the material
Define the term: endodontics
the branch of dentistry that deals with the diagnosis and treatment of diseases of the dental pulp
Define the term: apical
towards the apex of a tooth
Define the term: image interpretation
- an explanation of what is viewed on a dental image
- the ability to read what is revealed by a dental image
Define the term: periapical
around the apex of a tooth
Define the term: incisal
the chewing edge of anterior teeth
Define the term: interpretation
an explanation
Define the term: dentino-enamel junction (DEJ)
the junction between the dentin and enamel of a tooth
Define the term: mixed lucent-opaque
a term used to describe a lesion viewed on a dental image that exhibits both radiolucent and radiopaque components
Define the term: amalgam
a restorative dental material, composed of an alloy and mercury (appears radiopaque)
Define the term: edentulous patient
a patient without teeth
Define the term: radiopacity / radiodensity
an area on a dental image appearing radiopaque (light/white) due to resisting the passage of the x-ray beam and limiting the amount of x-rays that reach the image receptor
Define the term: alveolar bone
bone of the maxilla and mandible that supports and encases the roots of teeth (appears radiopaque)
Define the term: apex
the area of a tooth that allows for blood vessels and nerves to enter the tooth and maintain the vitality of the tooth
Define the term: edentulous zone
an area where teeth are no longer present
Define the term: periodontal
around a tooth
Define the term: composite resin
a tooth-colored restorative material that is bonded to tooth structure (appears radiolucent)
Define the term: occlusal
the chewing surfaces of posterior teeth
Define the term: dentition
the character of a set of teeth, including their number, kind, and location/arrangement
How do gold restorations appear on an image?
radiopaque
Define the term: multifocal confluent radiopacity
a term used to describe multiple radiopacities on a dental image that appear to overlap or flow together
Define the term: adjacent / proximal
objects next to/touching each other
Define the term: gutta percha
rubberlike material used in endodontic therapy to fill the pulp canals and pulp chamber (appears radiopaque)
