Podcast
Questions and Answers
What is the term for the distance from the gingival margin to the bottom of the pocket?
What is the term for the distance from the gingival margin to the bottom of the pocket?
- Probing depth (correct)
- Attached gingiva
- Gingival recession
- Enamel projection
Probing depth is measured to the nearest what?
Probing depth is measured to the nearest what?
- Millimeter (correct)
- Micrometer
- Centimeter
- Inch
What is the standard tip diameter of a periodontal probe?
What is the standard tip diameter of a periodontal probe?
- 0.4mm - 0.5mm (correct)
- 1.0mm - 1.2mm
- 1.5mm - 1.7mm
- 2.0mm - 2.2mm
What is a key factor to consider when using a periodontal probe?
What is a key factor to consider when using a periodontal probe?
What is used to measure probing depth?
What is used to measure probing depth?
What is the term for the unattached portion of the gingiva that surrounds the tooth?
What is the term for the unattached portion of the gingiva that surrounds the tooth?
In a six-point pocket chart, where is the first measurement taken?
In a six-point pocket chart, where is the first measurement taken?
In a six-point pocket chart, which surface is measured as point number 2?
In a six-point pocket chart, which surface is measured as point number 2?
According to the six point pocket chart, what area of the tooth is measured at point 5?
According to the six point pocket chart, what area of the tooth is measured at point 5?
What type of surface limitations/errors can come from probing?
What type of surface limitations/errors can come from probing?
What is the term for when a gingival margin is apical to the CEJ?
What is the term for when a gingival margin is apical to the CEJ?
What is the term for when the gingival margin covers the CEJ?
What is the term for when the gingival margin covers the CEJ?
What is used to describe the normal state gingival margin in relation to the CEJ?
What is used to describe the normal state gingival margin in relation to the CEJ?
What does CAL stand for?
What does CAL stand for?
What does CAL measure?
What does CAL measure?
What is used in distinguishing between gingivitis and periodontitis?
What is used in distinguishing between gingivitis and periodontitis?
Inflammation with no clinical attachment loss is characteristic of what?
Inflammation with no clinical attachment loss is characteristic of what?
To correctly calculate CAL, what information is needed?
To correctly calculate CAL, what information is needed?
To correctly calculate CAL, what second piece of information is needed besides probing depth?
To correctly calculate CAL, what second piece of information is needed besides probing depth?
If the gingival margin is at its natural location and the probing depth is 6mm, what is the clinical attachment loss?
If the gingival margin is at its natural location and the probing depth is 6mm, what is the clinical attachment loss?
If the probing depth is 4mm and the gingival margin level is at (+)2mm, what is the clinical attachment loss?
If the probing depth is 4mm and the gingival margin level is at (+)2mm, what is the clinical attachment loss?
If the gingival margin level is at zero, what does that mean?
If the gingival margin level is at zero, what does that mean?
If a number is noted as +’ve, what does this mean?
If a number is noted as +’ve, what does this mean?
Which of the following is NOT a learning outcome?
Which of the following is NOT a learning outcome?
The location of the free gingival margin is recorded in relation to what?
The location of the free gingival margin is recorded in relation to what?
What can cause the gingival margin to appear apical to the CEJ?
What can cause the gingival margin to appear apical to the CEJ?
What is the significance of assessing true periodontal support around the tooth?
What is the significance of assessing true periodontal support around the tooth?
Flashcards
Probing depth
Probing depth
Distance from the gingival margin to the bottom of the pocket
Six Point Pocket Chart
Six Point Pocket Chart
A chart with six specific points around each tooth used to record periodontal data.
Free Gingival Margin
Free Gingival Margin
The edge of the gingiva nearest the incisal or occlusal surface, not attached to the tooth.
Clinical Attachment Level (CAL)
Clinical Attachment Level (CAL)
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Gingivitis vs periodontitis?
Gingivitis vs periodontitis?
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Calculating CAL
Calculating CAL
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Zero (0) Gingival Margin Level
Zero (0) Gingival Margin Level
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Negative (-) Gingival Margin Level
Negative (-) Gingival Margin Level
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Positive (+) Gingival Margin Level
Positive (+) Gingival Margin Level
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Study Notes
Intended Learning Outcomes
- Define the term probing depth
- Revise components of periodontal probing
- Revise the limitations of periodontal probing
- Explain the location and method of undertaking a six point pocket chart
- Describe the locations of the free gingival margin
- Explain how to measure the free gingival margin
- Explain Clinical Attachment Level and its relevance in the periodontal assessment
- Explain how to calculate clinical attachment levels
Probing Depth
- Probing depth refers to the distance from the gingival margin to the bottom of the pocket
- It is measured to the nearest millimeter using a graduated periodontal probe with a standardised tip diameter of 0.4mm to 0.5mm
Six Point Pocket Chart
- Distobuccal line angle to midline of distal surface
- Buccal surface
- Mesiobuccal line angle to mesial surface
- Distolingual line angle to distal surface
- Lingual surface
- Mesiolingual angle to midline of mesial surface
Free Gingival Margin
- Normal state: gingival margin is slightly coronal to CEJ and is recorded as zero (0)
- Negative number (-'ve): gingival margin significantly covers CEJ
- Positive number (+'ve): gingival margin located apical to CEJ
Clinical Attachment Levels (CAL)
- CAL is a measure of the true periodontal support around a tooth
- It provides an estimate of true periodontal stability and loss of support
- CAL is measured from a fixed point on the tooth that does not change such as the CEJ
- CAL is critical in distinguishing between gingivitis and periodontitis
- Inflammation with no clinical attachment loss is characteristic of gingivitis
- Inflammation with clinical attachment loss is characteristic of periodontitis
Calculating CAL
- Probing depth and the level of the gingival margin is needed to calculate the CAL
- When the gingival margin is at a natural location: CAL = Probing depth (6mm) - Gingival margin level (0mm) = 6mm
- When recession is present with the gingival margin apical to CEJ(+'ve): CAL = Probing depth (4mm) + Gingival margin level ((+)2mm) = 6mm
- When the gingival covers the CEJ (-'ve): CAL = Probing depth (9mm) - Gingival margin level ((-)3mm) = 6mm
- Assessing true periodontal support around the tooth is needed to decipher the information obtained.
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