Oral-B 3758 - User Manual

Questions and Answers

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Regina GrantAug 14, 2025
Why is my Oral-B 3758 handle not operating with the app?
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  jonesjacobAug 14, 2025
  There are several possible reasons why your Oral-B Electric Toothbrush handle might not be operating properly with the Oral-B App: * The Oral-B App might be closed, so launch it. * Bluetooth might not be activated on your smartphone; activate it in your smartphone's settings. * Bluetooth might be disabled on the handle; enable it via the display settings. * The Bluetooth connection to your smartphone might have been lost; pair the handle and smartphone again via the App settings, keeping your smartphone nearby. * Your smartphone may not support Bluetooth 4.2 (or higher)/Bluetooth Smart; check www.oralbappavailability.co.uk for compatible smartphones and country availability. * The Oral-B App may be outdated; download the latest version.
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Caroline RoweAug 18, 2025
Why is my Oral-B 3758 not charging?
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  Linda WilliamsAug 18, 2025
  If your Oral-B Electric Toothbrush handle isn't charging, here are a few things to check: 1. The battery might be at a very low charge level (0%). If so, it may take 10-15 minutes for the display to turn on. Charge it for at least 30 minutes. 2. The ambient temperature for charging might be outside the valid range (less than 0°C or greater than 40°C). The recommended ambient temperature for charging is 5°C to 35°C. 3. The charger might not be properly connected. Ensure the charger is connected to the mains voltage.
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Frank BrownAug 25, 2025
Why is my Oral-B 3758 Electric Toothbrush handle not charging?
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  Barbara LangAug 25, 2025
  If your Oral-B Electric Toothbrush handle isn't charging, here are a few potential causes: * The battery might be at a very low charge level (0%). If so, it may take up to 10-15 minutes until the display turns on. Charge for at least 30 minutes. * The ambient temperature for charging might be out of the valid range (less than 0°C or greater than 40°C). The recommended ambient temperature for charging is 5°C to 35°C. * The charger might not be properly connected. Ensure the charger is connected to the mains voltage.
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Stephen SparksAug 27, 2025
Why is my Oral-B 3758 Electric Toothbrush making rattling/loud noise during brushing or turning on?
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  Stanley JohnsonAug 27, 2025
  If your Oral-B Electric Toothbrush is making a rattling or loud noise, it could be due to: * The brush head not being placed correctly onto the brush handle. Check the proper fit of the brush head on the handle, noting that a small gap remains in between. * The brush head being worn. If this is the case, replace the brush head.
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vanessamontesAug 31, 2025
What to do if my Oral-B 3758 handle is not operating during first use?
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  Michael BergerAug 31, 2025
  If your Oral-B Electric Toothbrush handle isn't operating during the first use: * The battery may have a very low charge level. Charge it for at least 30 minutes. * It may be operating outside the standard temperature (you might see a message on the display and/or alternating lights on the Smart Pressure Sensor). Always operate it within standard operating temperatures (greater than 0°C and less than 40°C).
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thomas35Sep 3, 2025
What to do if Oral-B Electric Toothbrush handle is not operating during first use?
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  Vincent BrownSep 3, 2025
  If your Oral-B Electric Toothbrush handle is not operating during its first use, it could be due to the following reasons: * The battery has a very low charge level. Charge it for at least 30 minutes. * The toothbrush is operating outside the standard temperature range. Always operate it between 0°C and 40°C.
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Barbara ParkSep 6, 2025
How to fix Oral-B Electric Toothbrush stuttering or timer malfunction?
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  wilsonjudithSep 6, 2025
  If your Oral-B Electric Toothbrush makes short stuttering sounds after 2 minutes or the timer isn't working, the timer settings may have been modified or deactivated via the app. Use the app to change the timer settings or perform a factory reset.
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Toni PerezSep 9, 2025
What to do if my Oral-B 3758 Electric Toothbrush has short stuttering sounds after 2 minutes or handle does not operate any timer?
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  Lauren BatesSep 9, 2025
  If your Oral-B Electric Toothbrush makes short stuttering sounds after 2 minutes or the handle doesn't operate any timer, the timer might have been modified or deactivated via the App. Use the App to change the timer settings.
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James Evans MDNov 19, 2025
What to do if my Oral-B 3758 Electric Toothbrush handle does not operate properly with the Oral-B App?
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  crystal97Nov 20, 2025
  If your Oral-B Electric Toothbrush handle isn't working with the Oral-B App, there might be several reasons: * The Oral-B App might be closed. In this case, launch the Oral-B App. * Bluetooth might not be activated on your smartphone. Activate Bluetooth on your smartphone. * Bluetooth might be disabled on the handle. Enable Bluetooth via the display settings. * The Bluetooth connection to your smartphone might have been lost. Pair the handle and smartphone again via the App settings, and keep your smartphone in close proximity when using it with the handle. * Your smartphone might not support Bluetooth 4.2 (or higher)/Bluetooth Smart. Your smartphone must support Bluetooth 4.2 (or higher)/Bluetooth Smart to pair the handle. * The Oral-B App might be outdated. Download the lat...

Oral-B 3758 Specifications

General

Brand	Oral-B
Model	3758
Type	Electric Toothbrush
Compatibility	Compatible with Oral-B brush heads
Power Source	Battery
Brushing Modes	Daily Clean, Gum Care, Sensitive, Whitening
Timer	2-minute timer with 30-second intervals
Pressure Sensor	Yes
Included Accessories	Brush head
Warranty	2 years