Patchy results typically originate from uneven gel application; usage well-fitted trays and avoid overfilling to prevent streaks

https://www.mediafire.com/file/brzenepiob4qlha/pdf-91623-86796.pdf/file

Patchy outcomes often come from unequal gel application; use well-fitted trays and prevent overfilling to avoid streaks, gum irritation, and lost item.