Modern braces are stronger than they used to be, so you might find that you don't see any of these increased risks
You also need to keep the vaporizer as clean as possible, as there are residues between uses which, if heated again, can release toxic elements
Smoke nicotine content: 0.8mg
However, the tobacco stick is not completely safe and contains the same dangerous chemicals found in regular cigarettes, including nicotine
Polosa R, Morjaria JB, Caponnetto P, Battaglia E, Russo C, Ciampi C, et al
Toxicol Appl Pharmacol 177:4653 Massadeh A, Gharibeh A, Omari K, Al-Momani I, Alomary A, Tumah H, Hayajneh W (2010) Simultaneous determination of Cd, Pb, Cu, Zn, and Se in human blood of Jordanian smokers by ICP-OES