▁appropriate ▁may ▁be ▁based ▁on : ▁The ▁tight ness ▁of ▁the ▁contact ▁area : ▁determ ines ▁the ▁width ▁of ▁fl oss ▁The ▁cont our ▁of ▁the ▁ging ival ▁t issue ▁The ▁rough ness ▁of ▁the ▁inter pro xim al ▁surface ▁The ▁client ' s ▁manual ▁de xter ity ▁and ▁preference : ▁to ▁determine ▁if ▁a ▁supp lement al ▁device ▁is ▁required ▁ ▁Special ized ▁pl astic ▁w ands , ▁or ▁fl oss ▁pick s , ▁have ▁been ▁produced ▁to ▁hold ▁the ▁fl oss . ▁These ▁may ▁be ▁attached ▁to ▁or ▁separate ▁from ▁a ▁fl oss ▁disp enser . ▁While ▁w ands ▁do ▁not ▁pin ch ▁fingers ▁like ▁regular ▁fl oss ▁can , ▁using ▁a ▁wand ▁may ▁be ▁awk ward ▁and ▁can ▁also ▁make ▁it ▁difficult ▁to ▁fl oss ▁at ▁all ▁the ▁angles ▁possible ▁with ▁regular ▁fl oss . ▁These ▁types ▁of ▁fl oss ers ▁also ▁run ▁the ▁risk ▁of ▁missing ▁the ▁area ▁under ▁the ▁g um ▁line ▁that ▁needs ▁to ▁be ▁fl oss ed . ▁On ▁the ▁other ▁hand , ▁the ▁en hanced ▁reach ▁of ▁a ▁wand ▁can ▁make ▁fl oss ing ▁the ▁back ▁teeth ▁easier . ▁ ▁D ental ▁fl oss ▁is ▁the ▁most ▁frequently ▁recommended ▁clean ing ▁aid ▁for ▁teeth ▁sides ▁with ▁a ▁normal ▁ging iva ▁cont our ▁in ▁which ▁the ▁spaces ▁between ▁teeth ▁are ▁tight ▁and ▁small . ▁The ▁dent al ▁term ▁‘ em br asure ▁space ’ ▁describes ▁the ▁size ▁of ▁the ▁tri angular - sh aped ▁space ▁immediately ▁under ▁the ▁contact ▁point ▁of ▁two ▁teeth . ▁The ▁size