oth paste : ▁produced ▁from ▁ 1 9 4 0 ▁to ▁ 1 9 4 5 ▁in ▁Germany ▁by ▁A uer gesellschaft ▁of ▁Berlin , ▁it ▁contained ▁small ▁amounts ▁of ▁thor ium , ▁although ▁later ▁analysis ▁showed ▁its ▁radio activity ▁levels ▁to ▁be ▁very ▁low . ▁ ▁Dr . ▁Lyon ' s ▁To oth ▁Pow der : ▁a ▁brand ▁of ▁pow der ed ▁dent if rice ▁mainly ▁popular ▁during ▁the ▁mid ▁tw enti eth ▁century . ▁It ▁is ▁still ▁available ▁today ▁in ▁independent ▁drug ▁stores ▁and ▁certain ▁drug ▁store ▁ch ains . ▁Cre ated ▁by ▁Dr . ▁I . ▁W . ▁Lyon , ▁D . D . S . ▁ ▁El m ex : ▁sold ▁since ▁ 1 9 6 2 , ▁it ▁is ▁manufact ured ▁by ▁G AB A ▁International ▁AG , ▁a ▁Swiss ▁manufact urer ▁of ▁brand ed ▁or al ▁care ▁products . ▁ ▁E uth ym ol : ▁a ▁brand ▁of ▁ant ise ptic , ▁flu or ide - free ▁to oth paste ▁distributed ▁by ▁Johnson ▁& ▁Johnson ▁that ▁is ▁character ised ▁by ▁its ▁bright ▁p ink ▁colour ▁and ▁medic inal ▁taste . ▁The ▁ant ise ptic ▁ing red ient ▁in ▁the ▁product ▁is ▁th ym ol . ▁ ▁G le em : ▁a ▁brand ▁of ▁to oth paste ▁made ▁by ▁the ▁Pro ct er ▁& ▁Gam ble ▁company . ▁ ▁I p ana ▁a ▁popular ▁to oth paste ▁during ▁the ▁ 2 0 th ▁century , ▁first ▁introduced ▁in ▁ 1 9 0 1 ▁by ▁Br istol - My