Iintsana zizalwa zifuna ukuncanca. Iintsana zixhomekeke kule "suck reflex" kungekuphela nje ngokuzondla kodwa kwanokuzola. Iintsana ezincinci azinayo enye indlela yokulawula uxinzelelo lwazo, azinakusela, abanakho ukucela ingubo, abanakusebenzisa izandla zabo ukulawula izinto.
Ukuncanca kubabonelela ngendlela yokuzola yiyo loo nto abazali abaninzi bekhetha obu buncwane xa bebona ukuba abantwana babo basenkathazweni. Ke ngoko, Iintsana ziya kuncanca, ukuba akunjalo nge-pacifier, emva koko ngesithupha, ngomnwe, ngebhotile, okanye ngebele.
Ukuba umntwana ufuna ukuncancisa amaxesha angaphezulu kweeyure ezimbini, usebenzisa uMama njengesixoli. Kwiimeko ezinjalo, i-pacifier inokunceda ukwanelisa iimfuno zokuncancisa ezingondlekiyo zomntwana ngelixa unika umama ikhefu elifunekayo.
Kufuneka uqiniseke ukuba ukuncancisa kusekwe kakuhle ngaphambi kokuzisa i-pacifier. Kwiintsana ezinengxaki yokufunda ukuncancisa, i-pacifier inokufundisa imikhwa emibi, ke kuyacetyiswa ukuba ulinde iiveki ezi-6 ukuya kwezi-8 de ukuncancisa kuqinisekiswe.
Nje ukuba umntwana abe yingcali ekuncanciseni kunye nonikezelo lobisi lwebele lusekiwe (ngesiqhelo kwiintsuku nje ezimbalwa), kulungile ukushiya i-pacifier kuye omncinci ukuze akwazi ukulawula ukubandezeleka kwakhe kwaye unike abazali ikhefu xa omncinci ezolile.
I-pacifier akufuneki ibe nantoni na embi kwaye incinci ukuba incinci isuswe ngaphambi kweminyaka emibini, kuba ngale ndlela amazinyo ayo akufuneki ahlupheke naluphi na uhlobo lokudodobala. Ingxaki kuxa isetyenziswa ixesha elide kwaye umntwana mdala. Nangona abantwana ngokwendalo banokunikezela ngesixhobo sokulungisa imeko kwiminyaka emi-3 okanye 4 ubudala, xa befumana ezinye iindlela zokuthomalalisa uxinzelelo lwabo.