Exam 3 Week 9 Objective & Covers Periodontal Disease

Question 1

List and explain limitations of using radiographs for diagnosis of periodontal disease

Answer 1

• 2D image of 3D structure
• Does not show exact morphology of bone
• Does not show disease activity
• Never substitute for a clinical periodontal assessment
• Does not show early bone loss or early furcation involvement
• Does not show tooth mobility

Question 2

List and explain benefits of radiographs in diagnosis of periodontal disease

Answer 2

• Bony changes
• Tooth and root morphology
• Widening of PDL
• Furcation’s
• Abscess
• Local Factors
• Pathology

Question 3

Compare and contrast healthy periodontium with disease

Answer 3

Notability

Question 4

Periodontal examination is incomplete without ___ radiographs

Answer 4

accurate

Question 5

Describe the difference between horizontal and vertical bone loss

Answer 5

Vertical

• Greater degree of bone loss on the interproximal aspect of one tooth compared to the adjacent tooth
• May require surgical tx to try to regenerate bone

Horizontal Bone Loss

• alveolar crest > 2mm from CEJ
• Lamina Dura usually lost the well defined radiopaque edge
• Hard to determine wether disease is active or stable

Question 6

Describe the distribution of periodontal disease

Answer 6

Extent

• Localized is less than or equal to 30 percent of surfaces
• Generalized is greater than 30 percent of surfaces

Question 7

Compare and contrast the severity of periodontal disease

Answer 7

written out on paper

Question 8

Identify calculus on radiographs and as well as other factors contributing to periodontal disease.

Answer 8

Furcation
-involvment: Loss of bone in furca region

Widened PDL
-Often signifies mobility