How often should I clean my Invisalign aligners using the specialized cleaning crystals designed for this purpose? Is there a recommended frequency that would ensure optimal hygiene while maintaining the integrity of the aligners? Given that Invisalign treatment typically lasts several months, how does the buildup of plaque and bacteria during this time influence the cleaning routine? Furthermore, are there particular circumstances, such as diet or oral hygiene practices, that might necessitate a more rigorous cleaning schedule? Should daily cleaning with these crystals be considered essential, or is there an alternative regimen that might suffice? Additionally, could the type of cleaning solution used, alongside the frequency, have an impact on both the effectiveness of the cleanse and the longevity of the aligners? What best practices should individuals be aware of to keep their aligners in pristine condition throughout their orthodontic journey? Are there specific indicators that might suggest a more frequent cleaning approach is warranted?