Is it obligatory to remove clear aligners during ablution for a fasting person, and if so, is it necessary to dry them from saliva before reinserting them into the mouth to avoid breaking the fast by swallowing it?

"Clear aligners retain a quantity of water during rinsing, and this quantity exceeds the excusable amount. The user of clear aligners can remove and reinsert them, so it is necessary for them to remove them during fasting and reinsert them from sunset until Fajr prayer, or to remove them after each rinse and empty any remaining water from them."