FAQ

Following you will find some of our customers frequently asked question.

1. When I connect Bruxoff to the PC the message ” Scan the drive now and fix it ” appears. What does it mean?

2. What happens if the patient forgets to make the three maximal contractions?

3. How can I know if the recorded signals are good?

4. How can I check if the patient made correctly the three maximal contractions?

5. Can I export the Bruxoff signals after I have downloaded them?

6. Can I use the same electrodes for multiple recordings?

7. What happens if the patient presses the start switch before starting a real recording session?

8. Can I provide Bruxoff to a patient even if the battery is not fully charged?

9. The red LED blinks, and it blinks even if the battery is fully charged. What does it mean?

10.  When I connect Bruxoff to the PC, its window doesn’t appear. In the Bruxmeter software, the Bruxoff icon is not active. What does it mean?




1. When I connect Bruxoff to the PC the message “Scan the drive now and fix it” appears. What does it mean?

It means that a corrupted file is in the Bruxoff internal memory. The corrupted file is generated when the electrodes connection cable is disconnected from Bruxoff during an acquisition. The corrupted file cannot be deleted from a PC. Anyway, Bruxoff works properly even with this corrupted file. To solve the issue, you can format Bruxoff. To do it, Select Bruxoff from My Computer, right click and select “format”. The formatting process can require few minutes; for further details refer to the user manual.


2. What happens if the patient forgets to make the three maximal contractions?

The patient three maximal contractions, before to sleep, are crucial for a correct data analysis. The software for the data processing use these three values to estimate the muscle activation thresholds related to the bruxism events. In case the maximal contraction has not been made, the recording must be repeated.


3. How can I know if the recorded signals are good?

A simple check can be done by looking at the window showed after the signals processing. The window will show two graphs, on the right, showing the activity of the masseter muscles. Green or blue vertical lines in these graphs represent a muscle contraction. Grey or red vertical lines highlight data corruption due to interferences, artifacts or signals saturation. Signals with low quality are related to electrode disconnection, bad skin preparation or the multiple use of the same electrodes. If you see in the graphs large red or grey region, the exam must be repeated.
In the same window, the third graph shows the heart rate. In this case a signal with low quality is represented by values equal to 0 in the graph: electrode disconnection, bad skin preparation or the multiple use of the same electrodes can be the cause.
If you find signals with low quality, ask to your patient to repeat the exam and to clean the skin before to apply the electrodes.

This is an example of signals with low quality:

SegnaleCattivo

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This is an example of signals with good quality:

SegnaleBuono
 

 

 

 

 

 

 

 

 


4. How can I check if the patient made correctly the three maximal contractions?

A simple check can be done by looking at the PC screen after the data processing. On the bottom left, a graph shows the three maximal contractions identified. A dashed horizontal line indicates the minimum level for the maximal contraction based on scientific studies carried on with Bruxoff. Maximal contraction under this threshold are not considered valid for the analysis.

This is an example of valid maximal contractions:

MVC
 

 


5. Can I export the Bruxoff signals after I have downloaded them?

Signals processed with Bruxmeter software are kept in a system folder and can be exported at any time. The procedure is described in the Bruxmeter User Manual. It is necessary to run the Bruxmeter software, then select the patient folder and click the “export” button in the upper panel. The software will prompt for a position where to export the signals. Once a position has been selected press Enter and wait for the export process to be completed.


6. Can I use the same electrodes for multiple recordings?

All the electrodes in the Bruxoff kit are disposable. They can be used only once. This is due to hygiene and methodological aspects: to get reliable measurements the electrodes have to be used only once.
Electrodes have to be applied on the skin after an appropriate skin cleaning and alcohol rubbing. It is suggested to massage the electrodes after they have applied to help to stick well.


7. What happens if the patient presses the start switch before starting a real recording session?

Starting from Bruxmeter version 1.1.0.3, the software can check the file duration. Files smaller than 5 minutes recording are discarded. Thus, if the patient starts and stops a recording before the real acquisition this will not compromise the session.


8. Can I provide Bruxoff to a patient even if the battery is not fully charged?

Bruxoff can acquire for more than 20 hours with the battery fully charged. So, it is possible to acquire the signal of one night even if the battery is not fully charged. It is recommended to check the red LED state. If it blinks, it means that the battery level is not sufficient for the recording of an entire night. A recharge of three hours can ensure a data recording of 9 hours, independently of the battery level. So, it is a good idea to always recharge Bruxoff for three hours before to give it to a patient.


9. The red LED blinks, and it blinks even if the battery is fully charged. What does it mean?

It can be due to the damage of the Bruxoff internal memory. Contact your local sales distributor or write at helpdesk@orthorizon.eu


10. When I connect Bruxoff to the PC, its window doesn’t appear. In the Bruxmeter software, the Bruxoff icon is not active. What does it mean?

It can be due to two different issues: 1) the cable conncting bruxoff to the PC is damaged, or 2) the Bruxoff internal connector has been damaged. Contact your local sales distributor or write at helpdesk@orthorizon.eu