Virtual perio-clinic

Oral Hygiene Indices and Periodontal Screening and Recording (PSR)


Oral Hygiene Indices and Periodontal Screening and Recording (PSR)

You’re assessing your patient’s oral hygiene by using Approximal Plaque Index (API) and Sulcus Bleeding Index (SBI).

The patient is missing the following teeth:
18, 17 are extracted but not replaced
13 is extracted but replaced by an implant
27 is extracted but not replaced
31, 41 are extracted but replaced with a ceramic bridge
44 is extracted but the space is closed by orthodontic treatment


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    WHO Probe/PSR


    #1. How many reading sites (points) does your patient have?

    #2. After sweeping the WHO probe through the gingival sulci you identified 5 bleeding sites. What is your patient’s SBI score (%)?

    #3. After applying disclosing agent to your patient’s teeth, you identified 7 interproximal sites with biofilm deposits. What is your patient’s API score (%)?

    #4. How would you classify your patient’s oral hygiene?

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