Answered by Shaykh Faraz Rabbani
I have retainers for my teeth. What I am seeing is if I rinse my mouth no matter how hard I try to spit it all out a few drops of water is still getting stuck behind the retainer which is getting subsequently swallowed, because that’s the only way I can get that water out of my mouth w/o taking the retainer off. Now when I am fasting would this water break my fast? Should I be taking my retainer off every time I have to rinse my mouth to avoid this situation? If yes then, considering that it is sort of difficult for me to maintain my wudu, would it be sinful for me to skip rinsing my mouth for each time I have to make wudu while I am fasting?
Walaikum assalam wa rahmatullah,
You would have to take your retainer off in such a case.
If this is difficult (such as when you are in a hurry or on the run), then you should skip washing your mouth, or do so minimally in a way that leave you reasonably sure that the water would not remain under the retainer.
You should avoid making it a continual habit, however, to skip washing your mouth without excuse, for this would be sinful. This is because it is sinful to habitually leave a confirmed sunna, such as washing one’s mouth in wudu, without reasonable excuse.
And Allah alone gives success.