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jackiedh
on FreezingBlue Flashcards.
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the breaking of a part:
fracture
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T/F fractures may affect the crowns and roots of teeth or bones of the maxilla or mandible
true
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which teeth usually are involved in fractures?
anterior teeth
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T/F crown fractures may involve the enamel only, the enamel and dentin, or the enamel, dentin, and the pulp
true
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the radiograph for observing a fracture allows the dental professional to evaluate the ________ of the _____ ________ to the fracture and examine the root for additional fractures
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which is more common, a root fracture or a crown fracture?
crown fractures
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when do root fracture occur?
from an accident or traumatic blow
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what is the most common region for root fractures to occur?
maxillary central incisors
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a fracture that is parallel with the x-ray beam appears as:
a sharp radiolucent line on a PA
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how come with time root fractures have a tendency to enlarge?
- displacement of root fragments
- hemorrhage
- edema
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what is the most common bone for fractures in the face?
mandible
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which are more common, maxillary fractures or mandibular fractures?
mandibular fractures of the alveolar bone and teeth
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tooth _________ includes luxation (intrusion or extrusion) and avulsion
displacement
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the abnormal displacement of teeth
luxation
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abnormal displacement of teeth INTO the bone
intrusion
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abnormal displacement or teeth OUT of the bone
extrusion
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the complete displacement of a tooth from the alveolar bone
avulsion
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which displacement is most common with an assault or accidental fall?
avulsion
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dental radiographs are important in the evaluation of the socket area and should be used to examine the region for ________ ______
splintered bone
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what are the two types of resorption associated with teeth?
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a process that is seen with the normal shedding of primary teeth
physiologic resorption
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the roots of a primary tooth are resorbed as the permanent successor moves in an occlusal direction; the primary tooth is shed when the resorption of the roots is complete.
physiologic resorption
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a regressive alteration of tooth structure that is observed when a tooth is subjected to abnormal stimuli
pathologic resorption
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resorption of teeth can be described as _______ or ________ depending on the location of the resorption process
- external
- internal
- (pathologic resorption)
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what type of resorption is seen along the periphery of the root surface and is often associated with reimplanted teeth, abnormal mechanical forces, trauma, chronic inflammation, tumors/cysts, impacted teeth or idiopathic causes?
external resorption
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what does external resorption usually affect?
the apices of teeth
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the apical region is blunted and the length of the roots appear shorter than normal, this is ________ resorption
external
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both the lamina dura and the bone around the blunted apex appear normal with __________ resorption
external
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T/F external resorption can only be detected clinically and with signs or symptoms
false! It cannot be detected clinically, only on a radiograph. asymptomatic
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T/F teeth that undergo external resorption do not exhibit mobility
true
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T/F there is no effective treatment for external resorption
true
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resorption that occurs within the crown or root of a tooth and involves the pulp chamber, pulp canals, and surrounding dentin
internal resorption
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T/F trauma, pulp capping, and pulp polyps are believed to stimulate the internal resorption process
true dat
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appears as a round ovoid radiolucency in the midcrown or midroot portion of a tooth
internal resorption
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T/F internal resorption generally has symptoms
false! asymptomatic
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what is recommended if the tooth from the resorptive process has not physically weakened the tooth? what if the tooth is weakened?
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a diffuse calcification of the pulp chamber and pulp canals of teeth that result in pulp cavity of decreased size
pulpal sclerosis
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for unknown reasons, pulpal sclerosis is associated with______
aging
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pulpal sclerosis appears as a pulp cavity that is _______ in size
reduced
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does not appear to have a pulp chamber or pulp canals=
pulpal obliteration
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pulpal obliteration teeth appear to be ________ and do not require treatment
nonvital
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some conditions ( attrition, abrasion, caries, etc) may act as irritants to the pulp and stimulate the production of secondary dentin which results in _________ of the pulp cavity
obliteration
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calcifications that are found in the pulp chamber or pulp canals of teeth
pulp stoney stones
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T/F the cause of pulp stones is unknown
true true
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round, ovoid, or cylindrical radiopacities and may conform the shape of the pulp chamber or canal
pulp stones
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on a radiograph, ________ lesions may appear radiopaque or radiolucent
periapical
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granulomas, cysts, and abcesses are common radiolocuencies:
periapical
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can periapical lesions be diagnosed as a granuloma, cyst, or abcess from a radiograph?
no, it should just be called a periapical radiolucency
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a localized mass of chronically inflamed granulation tissue at the apex of a nonvital tooth
periapical granuloma
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T/F the periapical granuloma results from pulpal death and necrosis and s the most common sequela of pulpitis
true, i'm not lying!
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what can give rise to a periapical cyst or abcess?
periapical granuloma
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a periapical granuloma is typically _________ with a history of prolonged sensitivity to hot and cold
asymptomatic
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how does a periapical granuloma appear?
as a widened periodontal ligament space at the root apex
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is the lamina dura visible between the root apex and the apical lesion with periapical granuloma?
no, it is radiolucent (its like bliggity black)
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a radicular cyst aka:
periapcal cyst
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cystic degeneration takes place within a periapical granuloma and results in a periapical cyst
periapical cyst
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cyst results from pulpal death and necrosis
periapical cyst
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what are the most common of all tooth related cysts and compromise 50% to 70% of all cysts in the oral region?
periapical cyst
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are periapical cysts asymptomatic or symptomatic?
usually asymptomatic
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a periapical cysts appears as a round or ovoid ___________
radiolucency
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a localized collection of pus in the periapical region of a tooth that results from pulpal death
periapical abcess
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