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Anatomical Features
Normal Anatomy of the Skull
Terminology
Caries
Abnormal Anatomy/Perio
100
Compact or dense bone lines the outer layer of the maxilla and mandible
What is Cortical Bone
100
Thin radiolucent line that traverses down the center of the palate at the junction of the right and left maxilla
What is the Median Palatine Suture
100
Consists of 32 teeth
What is the Permanent Dentition
100
Involves the buccal or facial surface of a tooth
What is (are) Buccal Caries (Facial Caries)
100
Occurs when sclerotic bone is formed as a result of infection
What is Condensing Osteitis
200
Fibers that attach the teeth to the alveolus; soft tissue so appears radiolucent; appears as a dark line between the tooth and alveolus.
What is Periodontal Ligament Space (PDL)
200
A broad "U" or "J" shaped radiopaque band seen above or superimposed over the roots of the maxillary first and second molars
What is the Zygomatice Process
200
Extra teeth outside of the normal number
What is Supernumerary Teeth
200
Stopped or inactive
What is (are) Arrested Caries
200
Infection, usually resulting from pulpal inflammation
What is a Periapical Abscess
300
A tiny radiolucent dot indicating the small opening in the tubelike passageway of a nutrient canal
What is a Nutrient Foramen
300
Union of the lateral border of the nasal fossa and anterior wall of the maxillary sinus; radiopaque inersection in the canine-premolar area
What is the Inverted "Y"
300
The process of shedding of the primary teeth to make room for the erupting permanent teeth
What is Exfoliation
300
Gingival recession and bone loss precede this demineralization process
What is (are) Root Caries or Cemental Caries
300
When the tooth root is misshapen with a sharp bend
What is Dilaceration
400
Only non-calcified tooth tissue; appears radiolucent, in the center of the root
What is Root Chamber or Root Canal
400
Four small bony crests on the lingual surface of the mandible that serve for muscle attachment; appears as round radiopaque "doughnut" apical to the mandibular central incisors
What is (are) the Genial Tubercles
400
A congenital absence of teeth
What is Anodontia
400
Penetrates less than halfway through the enamel of the tooth toward the DEJ
What is (are) Incipient Caries ( C-1)
400
Essentially, hardened plaque; appears slightly radiopaque
What is Calculus
500
Fairly uniform, thin radiolucent lines that may exhibit radiopaque borders; contain blood vessels and nerve supply to the teeth, bone, and gingiva; often more prominent in anterior of mandible due to decreased thickness of bone
What is (are) Nutrient Canals
500
Located on the lateral surface of the mandible; appears as a horizontal radioaque line extending from the premolar region to the symphysis (the midline of the mandible where the left and right sides of bone are fused together)
What is the Mental Ridge
500
Another name for root caries
What is Cemental Caries
500
Results from the high contrast between the normal enamel and the dense overlapped enamel
What is the Mach Band Effect
500
Characterized radiographically by severe horizontal and/or vertical bone loss, furcation involvement, widened PDL
What is Case Type IV or Aggresive Periodontitis