Description
The OraStretch® Maximum Interincisal Opening (MIO) Scales are disposable paper measuring tools designed to help both patients and clinicians accurately measure mouth opening, jaw movement, and overall function.
Developed for improved accessibility and ease of use across a wide range of patients, the OraStretch MIO Scales provide a comprehensive set of measurement tools in one format. They include:
- A rotational ruler measuring up to 65 mm
- A mirror rotational ruler to support easier self-measurement
- A trismus guide to assist in identifying jaw hypomobility
- A micro-scale for very small openings (from 2 mm to under 10 mm)
- A straight ruler for general measurement use
- A jet ruler for assessing jaw protrusion and retrusion
- A lateral scale for measuring side-to-side movement
- A dedicated log area for recording patient information
These features allow clinicians to better assess total jaw movement and functional progress over time. By providing clear, quantifiable measurements, the OraStretch MIO Scales support more accurate diagnosis, improved treatment planning, and consistent tracking of rehabilitation outcomes.
For patients, simple and regular measurement can help visualise progress, improving motivation and engagement throughout the rehabilitation process, while clinicians benefit from more reliable data to guide care decisions.




