Although the terms lateral secondary and accessory canals are often used interchangeably they mean different things. The accessory canal is derived from the secondary canal branching off to the periodontal ligament in apical sections. Different methodology was used to study the accessory canals. https://www.ngetikin.com/limited-buy-LA-Williams-Belial-Dragon-by-LA-Williams-Google-Pixel-2-Skin-p114135-best-save/