Quiz 5 Detailed chapter questions Flashcards
refers to tissues that invest and support teeth, such as the gingiva and alveolar bone.
Periodontium
appears as a dense radiopaque line around the roots
Lamina Dura
Normal healthy alveolar crest is located approx __ to __ mm apical to the CEJ
1.5 to 2 mm
Shape of alveolar crest anterior vs posterior and radiopacity
anterior = pointed sharp posterior = flat, smooth, parallel to line between CEJ and less radiopaque than anteirors
in health appears as a thin radiolucent line between the root of the tooth and the lamina dura.
Periodontal ligament space
What provides information about soft tissues /gingiva
- Clinical examination
- Dental images
Clinical examination
what provides evaluation of hard tissues, such as bone
- Clinical examination
- Dental images
Dental images
Dental images provide overview of amount of bone present and indicate:
1.
2.
3.
pattern
distribution
severity
with the __ technique the hieight of crestal bone is accurately recorded in relation to the tooth root
paralleling technique
the __ bite wing image alone should not be used to document moderate to severe perio disease but what can
horizontal bite wing
Vertical bite-wing image
___ of bone loss viewed on a dental image is described as horizontal or vertical
Pattern
what is also known as angular bone loss
vertical bone loss
the ___ of bone loss seen on a dental image can be described as localized or generalized
distribution
bone loss occurs evenly throughout the dental arches, with more than 30% of the sites involved
generalized bone loss
bone loss that occurs in isolated areas, with less than 30 percent of the sites involved
localized bone loss
Bone loss viewed on a dental image can be classified as slight, moderate, severe
Severity
the severity of bone loss is measured by the ___
CAL
clinical attachent loss
1-2mm bone loss
slight bone loss
3-4mm bone loss
moderate bone loss
5mm greater
sever bone loss
gingivitis is ADA type
ADA Type 1
mild or slight periodontitis is ADA
ADA Type II
Moderate periodontitis is ADA
ADA Type III
Advanced or sever periodontitis is ADA
ADA Type IV
No bone loss is associated with type I disease (gingivitis); therefore, no change in bone is seen on the dental image. The crestal lamina dura is present, and the alveolar crest is approximately 1 to 2 mm apical to the CEJ. Clinically, bleeding on probing may be present. Only the gingival tissues are affected by the inflammatory process in ____; no hard tissue changes are seen.
ADA Case Type I
The bone loss associated with ____ is mild crestal changes ( Figures 34-17 to 34-19 ). The lamina dura becomes unclear and fuzzy and no longer appears to be a continuous radiopaque line. Horizontal bone loss is seen more often in type II disease, with the alveolar bone level approximately 3 to 4 mm apical to the CEJ. Clinically, bleeding may occur on probing, and pocket depths resulting from attachment loss as well as localized areas of gingival recession may be evident.
type II disease (mild or slight periodontitis)
Horizontal or vertical bone loss may be present in _____; the distribution of the bone loss may be localized or generalized ( Figures 34-20 to 34-23 ). The alveolar bone level is approximately 4 to 6 mm apical to the CEJs of adjacent teeth. Bleeding upon probing may be present. Furcation involvement, or the extension of periodontal disease between the roots of multirooted teeth, may also be seen in _____. When bone in the furcation area is destroyed, a radiolucent area is evident on the dental image ( Figure 34-24 ). Clinically, pocket depths and attachment loss up to 6 mm are evident. Recession, furcation involvement areas, and slight mobility may also be present.
type III disease
The bone loss associated with ______indicates further progression of the disease and is considered severe ( Figures 34-24 to 34-27 ). The pattern of bone loss may be horizontal or vertical, and the alveolar bone level is 6 mm or greater from the CEJ. Furcation involvement is readily viewed on posterior images. Bleeding on probing is evident. Clinically, pocket depths and attachment loss are greater than 6 mm, and furcation involvement and mobility are more severe.
type IV disease (advanced or severe periodontitis)
what is commonly seen as pointed or irregular radiopaque projections extending from proximal root surfaces
calculus
____may also appear as a ringlike radiopacity encircling the cervical portion of a tooth, a nodular radiopaque projection, or a smooth radiopacity on a root surface.
Calculus
