Questions and Answers
What are the four categories of periodontal conditions?
What falls under 'periodontal health, gingivitis and other gingival diseases'?
What falls under 'periodontitis' condition?
What falls under 'other conditions affecting the periodontium'?
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What falls under 'peri-implant diseases and conditions'?
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What is 'localized periodontitis' classified as?
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What is 'generalized periodontitis' classified as?
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When can someone with reduced periodontium be classified as having gingivitis?
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What two factors classify someone as having periodontitis?
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What non-periodontal causes may lead to clinical attachment loss?
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How do you assess the severity of the periodontal condition?
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How do you assess the complexity of the periodontal condition?
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How do you assess the extent of the periodontal condition?
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What are the two main risk factors associated with periodontal condition?
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What is the STAGE of the periodontal condition?
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What is considered in assigning a stage to the patient?
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What does the GRADE tell you about the periodontal condition?
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What is considered in assigning a Grade to the patient?
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Stage I - initial periodontitis classification includes which factors?
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Stage II - moderate periodontitis classification includes which factors?
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Stage III - severe periodontitis classification includes which features?
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Stage IV - advanced periodontitis includes which characteristics?
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Grade A indicates what rate of progression?
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Study Notes
Periodontal Classification System
- Four categories of periodontal conditions:
- Periodontal health, gingivitis, and other gingival diseases
- Periodontitis
- Other conditions affecting the periodontium
- Peri-implant diseases and conditions
Periodontal Health and Gingival Diseases
- Periodontal health indicates absence of disease.
- Gingivitis is often biofilm-induced.
- Other gingival diseases arise from non-biofilm factors.
Periodontitis
- Includes:
- Periodontitis
- Necrotizing gingivitis
- Periodontitis associated with systemic diseases
Other Conditions Affecting Periodontium
- Factors include:
- Systemic diseases
- Endo-perio lesions
- Mucogingival deformities
- Traumatic occlusal forces
- Factors related to prostheses or teeth
Peri-implant Diseases and Conditions
- Comprises:
- Peri-implant health
- Peri-implant mucositis
- Peri-implantitis
- Deficiencies in soft and hard tissues around implants
Localized and Generalized Periodontitis
- Localized periodontitis characterized by:
- BOP (Bleeding on probing) at 10-30% of sites
- No significant radiographic bone loss
- No pockets greater than 3mm
- Generalized periodontitis shows:
- BOP at over 30% of sites
- No radiographic bone loss
- No pockets exceeding 3mm
Gingivitis with Reduced Periodontium
- Classified as gingivitis if there’s radiographic bone loss but no probing depths greater than 3mm.
Factors Defining Periodontitis
- Interdental CAL (Clinical Attachment Loss) greater than 2mm in two or more non-adjacent teeth.
- Buccal or lingual CAL exceeding 3mm with pocket depth greater than 3mm in two non-adjacent teeth.
- CAL must not be due to non-periodontal causes.
Non-Periodontal Causes of CAL
- Include:
- Traumatic occlusion
- Draining sinus
- Vertical root fractures
- Cervical dental caries
- CAL associated with third molar extraction or malposition
Assessment of Periodontal Conditions
- Severity assessed by:
- Amount of attachment loss and degree of periodontal breakdown
- Number of teeth lost due to periodontitis
- Complexity determined by:
- Probing depths
- Root fractures
- Furcation involvement
- Missing teeth and mobility
- Residual ridge defect sizes
- Extent evaluated by:
- Percentage of teeth affected and patterns (e.g., molar-incisor vs. generalized)
Main Risk Factors
- Smoking
- Diabetes
Staging of Periodontal Conditions
- Represents the disease state at various times and helps in assessing prognosis.
- Factors for staging include:
- Severity (CAL, radiographic bone loss, tooth loss)
- Extent and complexity
- Risk factors like smoking and diabetes
Grading of Periodontal Conditions
- Indicates the rate of progression and potential health impact on the patient.
- Factors for assigning a grade include:
- Direct evidence of progression
- Indirect evidence (% radiographic bone loss vs. age)
- Modifiers, such as smoking and HbA1c levels
Stages of Periodontitis
- Stage I - Initial Periodontitis:
- Interdental CAL: 1-2mm
- RBL: Coronal third, < 15%
- No teeth lost, Pocket depth < 4mm
- Bone loss mostly horizontal
- Stage II - Moderate Periodontitis:
- Interdental CAL: 3-4mm
- RBL: Coronal third, up to 33%
- No teeth lost, Pocket depth < 5mm
- Bone loss primarily horizontal
- Stage III - Severe Periodontitis:
- Interdental CAL: ≥ 5mm
- RBL: Middle third and beyond
- Tooth loss ≤ 4, Pocket depth > 6mm
- Vertical bone loss > 3mm
- Furcation involvement class II and III
- Moderate residual ridge defects
- Stage IV - Advanced Periodontitis:
- Interdental CAL: ≥ 5mm
- RBL: Middle third and beyond
- Tooth loss > 5
- Pocket depth > 6mm
- Possible complex rehabilitation needs
Grade A - Slow Rate
- Direct evidence shows no loss over the past 5 years.
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Description
This quiz focuses on the 2017 Periodontal Classification System, detailing the four categories of periodontal conditions. It covers periodontal health, gingivitis, periodontitis, and conditions affecting the periodontium, including peri-implant diseases. Ideal for dental students and professionals seeking to review essential periodontal concepts.
