Iftiinka bareegga sare ayaa guud ahaan lagu rakibaa qaybta sare ee gadaasha baabuurka, si baabuurka ka dambeeya uu u fududaado in lagu ogaado barriga hore ee baabuurka, si looga hortago shilka dambe. Sababtoo ah celceliska baabuurka wuxuu horey u lahaa laba nal oo biriig ah oo lagu rakibay cidhifka dambe ee baabuurka, mid bidix iyo mid midig.

Markaa iftiinka biriiga sare waxa kale oo loo yaqaan nalka saddexaad, nalka biriiga saddexaad, nalka saddexaad. Iftiinka biriiga sare waxa loo isticmaalaa in looga digo baabuurka gadaashiisa, si looga fogaado isku dhaca danbe-dhamaadka.

Baabuurta aan lahayn nalka biriiga sare, gaar ahaan baabuurta iyo baabuurta yar yar ee shasigu yar yahay marka ay biriigsanayaan sababta oo ah meesha hoose ee nalka dambe ee nalka, inta badana aan iftiin ku filnayn, baabuurtan soo socota, gaar ahaan wadayaasha baabuurta, basaska iyo basaska oo leh chassis-sare oo mararka qaarkood ay adag tahay in si fiican loo arko. Sidaa darteed, khatarta qarsoon ee isku dhaca dhabarka dambe waa mid aad u weyn. [1]

Natiijooyin cilmi-baaris oo tiro badan ayaa muujinaya in iftiinka biriiga sare uu si wax ku ool ah uga hortagi karo oo uu u yarayn karo dhacdooyinka isku dhaca dambe ee dambe. Sidaa darteed, nalalka biriiga sare ayaa si weyn looga isticmaalaa wadamo badan oo horumaray. Tusaale ahaan, dalka Maraykanka, marka loo eego qawaaniinta, dhammaan baabuurta cusub ee la iibinayo waa in lagu qalabeeyaa nalalka biriiga sare ilaa 1986. Dhammaan baabuurta fudud ee la iibiyay tan iyo 1994kii waa in ay lahaadaan nalalka biriiga sare.