1. Cov khoom siv thiab qhov tshwm sim:
Cov hniav tsis pom kev siv cov ntaub ntawv elastic, nrog cov pob tshab lossis ib nrab pob tshab uas zoo ib yam li cov pos hniav, muab cov qib siab zoo nkauj.
Lwm cov hniav hniav tuaj yeem siv cov khoom siv hlau lossis cov khoom siv, nrog rau qhov pom ntau dua.
2. Nqe:
Cov hniav tsis pom kev zoo li yuav pricier vim lawv cov txiaj ntsig zoo nkauj zoo nkauj.
Cov hniav cuav feem ntau pheej yig dua.
3.Kev siv tau:
Invisible hniav hniav feem ntau haum rau kev kho ntawm ib leeg los yog ob peb cov hniav, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej uas zoo nkauj yog qhov tseem ceeb.
Lwm cov hniav hniav, xws li cov hniav tag nrho-arch, yog haum rau cov neeg mob ntau lossis ua tiav cov hniav.
4.Qhov cuam tshuam rau qhov ncauj noj qab haus huv:
Cov hniav tsis pom, vim tias lawv tsis muaj hlau clasps, ua rau lub siab tsawg dua ntawm cov ntaub so ntswg ntawm qhov ncauj tab sis tsis haum rau kev hnav mus ntev.
Lwm cov hniav hniav yuav xav tau hlau clasps lossis lwm cov qauv, uas tej zaum yuav ua rau muaj kev ntxhov siab rau cov ntaub so ntswg ntawm qhov ncauj thaum lub sijhawm.
5.Kev tu thiab tu:
Cov hniav tsis pom kev yuav tsum tau muab tshem tawm thiab tu kom huv si.
Kev tu thiab tu ntawm lwm cov hniav hniav yuav yooj yim dua.
Hauv cov ntsiab lus, cov hniav tsis pom pom muaj qhov zoo hauv kev zoo nkauj thiab cov khoom siv, tab sis zoo li yuav kim dua thiab tsis haum rau kev hnav mus ntev. Lwm cov hniav hniav sib txawv ntawm qhov siv tau thiab tus nqi raws li cov xwm txheej tshwj xeeb. Cov neeg mob yuav tsum txiav txim siab raws li lawv cov kev xav tau thiab cov lus pom zoo ntawm lawv tus kws kho hniav.
Yog xav paub ntxiv, thov mus saib peb lub vev xaib:luckydentallab.com