ISQ scale
Pronunciation: I-S-Q scale
Also written as: ISQ — Implant Stability Quotient
The numerical scale (1–100) used to report dental implant stability values derived from resonance frequency analysis, where higher values indicate greater stability.
Full Definition
The ISQ (Implant Stability Quotient) scale is a standardised, dimensionless scale ranging from 1 to 100 that quantifies the degree of implant stability as measured by resonance frequency analysis devices such as the Osstell system. Values above 70 are generally associated with high stability and are considered favourable for loading; values below 60 may indicate insufficient osseointegration. Editors should be aware that 'ISQ' and 'ISQ scale' are often used interchangeably in the literature, but the scale itself is the measurement framework. 'ISQ value' refers to an individual reading. The abbreviation should be expanded on first use (Implant Stability Quotient, ISQ) and followed consistently thereafter.
Usage
Usage note: Expand on first use. Distinguish 'ISQ scale' (the measurement framework) from 'ISQ value' (an individual data point). Do not italicise or place in quotation marks in running text.
In Context
- "The patient's ISQ scale reading of 65 prompted a delayed loading protocol of an additional six weeks." — Implant Monitoring Record
- "Results were reported on the ISQ scale; mean values at placement and at loading were compared statistically." — Clinical Research Paper — Methods Section