Patchy results often come from unequal gel application; use well-fitted trays and avoid overfilling to avoid streaks
https://www.mediafire.com/file/jczni4ly0nc0ib5/pdf-94839-21658.pdf/file
Patchy results often originate from uneven gel application; use well-fitted trays and avoid overfilling to avoid streaks, gum inflammation, and lost product.