If your Hawley retainer contains solder, you should not soak it in any products. Even the ones that say it’s safe to soak for 15 or 20 minutes a day will eventually make the solder crumble. It’s the nature of the anti-bacterial agents in the cleaners that does this, and long exposure makes it worse. If you leave your retainer soaking overnight or for many hours, the solder will turn black and crumble off in a matter of a few weeks.
For these types of retainers, you have two choices:
- Ask your orthodontist whether the soldererd-on pieces are really necessary (in some cases, they are not, and can be removed).
- Instead of soaking your retainer, clean it with OAP Cleaning Foam or Gel, or Cleanse Freshen Go spray or wipes.
You could soak your retainer every so often for a deep cleaning, making sure to remove it after 15 to 20 minutes. Or you could ask your orthodontist run it through their ultrasonic autoclave cleaner.