**Y. Wagner, R. Heinrich-Weltzien, “Effect of a thin-neck pacifier on primary dentition: a randomized controlled trial”, Orthodontics & Craniofacial Research, Volume 19, Issue 3, pages 127–136, August 2016.
***On average: Between 32% - 83% thinner/ 1.1 – 19.5 times more flexible than regular silicone soothers.