Which Index Uses a Specially Designed Periodontal Probe Called the World

question 3

Multiple Choice

Which index uses a specially designed periodontal probe called the World Health Organization probe?

• A) Sulcus bleeding index (SBI)
• B) Russell Periodontal Index
• C) Periodontal disease index (PDI), developed by Sigurd Ramfjord
• D) Community index of periodontal treatment needs (CIPTN)

---

Definitions:

Vestibular System

The sensory system responsible for providing our brain with information about motion, head position, and spatial orientation; it also aids in maintaining balance.

Vestibular System

The sensory system that contributes to balance and spatial orientation; it includes the parts of the inner ear and brain that process the sensory information involved with controlling balance and eye movements.

Maintain Balance

The ability of an organism to keep their body in equilibrium or stable, whether in motion or standing still.

Frequency

The rate at which something occurs over a particular period of time or in a given sample.