Related Experiment Video
Updated: Oct 12, 2026

The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents
Published on: April 19, 2019
CPITN--interpretations and limitations
1Department of Conservative Dentistry, Prince Philip Dental Hospital, Hong Kong.
Abstract:
As with all indices which impose numerical scales on a biological process, there are limitations with CPITN which must be identified and recognised. The limitations are due to the index being used for purposes for which it was not originally designed and recent advances in understanding which question the underlying assumptions of the index. Whilst questioning whether these limitations are sufficient to abandon the CPITN in favour of a new index, suggestions are made for modifications to the existing system. These include, the recording of each of the clinical indicators separately, as well as including the measurement of total loss of attachment. In addition an extension of the treatment need scale from four to five points is suggested.
Related Concept Videos
Immunoprecipitation
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...
Patient-centered Care
Critical Thinking I
Methods of Documentation III: PIE
Sensitivity, Specificity, and Predicted Value
Sensitivity is the...

