Tshem tawm cov hniav cuav: hom, khoom siv, kev teeb tsa. Yuav ua li cas siv tau rau cov hniav uas tshem tau?

Cov txheej txheem:

Tshem tawm cov hniav cuav: hom, khoom siv, kev teeb tsa. Yuav ua li cas siv tau rau cov hniav uas tshem tau?
Tshem tawm cov hniav cuav: hom, khoom siv, kev teeb tsa. Yuav ua li cas siv tau rau cov hniav uas tshem tau?

Video: Tshem tawm cov hniav cuav: hom, khoom siv, kev teeb tsa. Yuav ua li cas siv tau rau cov hniav uas tshem tau?

Video: Tshem tawm cov hniav cuav: hom, khoom siv, kev teeb tsa. Yuav ua li cas siv tau rau cov hniav uas tshem tau?
Video: Фарингит - симптомы, признаки 📌 Острый фарингит, хронический, бактериальный и вирусный 2024, Hlis ntuj nqeg
Anonim

Thaum ua txhaum kev ncaj ncees ntawm cov hniav lossis lawv qhov tsis tuaj tom qab kev phais, kev teeb tsa cov hniav tshem tawm feem ntau yuav tsum tau ua. Kev kho hniav niaj hnub tau los ntev hauv nws txoj kev txhim kho. Ua tsaug rau qhov no, cov neeg uas muaj cov hniav uas ploj lawm muaj lub sijhawm los txhim kho cov hniav uas tshem tau hauv lawv qhov chaw. Lawv hom yog dab tsi? Cov hniav uas tshem tau qhov twg yog qhov zoo tshaj? Yuav ua li cas kom tau siv rau lawv lub xub ntiag thiab yuav ua li cas saib xyuas cov qauv zoo li no? Tag nrho cov no - txuas ntxiv.

Tshem tau cov hniav cuav
Tshem tau cov hniav cuav

Dab tsi yog cov hniav tshem tawm tau

Hauv cov tshuaj niaj hnub no, lub tswv yim no tau siv dav heev. Nws yog hais txog lub prosthesis uas hloov cov hniav uas ploj lawm, uas tus neeg mob muaj lub cib fim tshem tawm thiab muab tso rau ntawm nws tus kheej.

Thaum twg cov hniav tshem tawm tau haum? Lawv siv tshwj xeebcuam tshuam thaum tsis muaj peev xwm txhim kho txuas hniav lossis cog rau hauv qhov chaw khoob.

Nyob hauv lub ntiaj teb no niaj hnub nim no, cov hom prostheses kuj tau pib tshwm sim uas tsis muab txuas rau palatal ib feem ntawm lub qhov ncauj, thiab cov uas yog ib feem tshem tau. Cia peb xav txog txhua yam kom ntxaws ntxiv.

Cov khoom siv dab tsi yog tsim los ntawm?

Cov hniav tshem tawm niaj hnub yog tsim los ntawm ntau hom khoom. Qee tus ntawm lawv yog ua los ntawm cov yas, tab sis cov khoom no feem ntau yog siv los tsim cov khoom tsim los hnav rau ntawm lub puab tsaig sab sauv, vim lawv tsis haum rau lub puab tsaig qis vim xav tau lub zog ntawm cov hniav ntau dua.

Ntxiv rau cov yas, kuj muaj cov khoom nylon. Raws li kev txheeb xyuas ntawm cov hniav uas tshem tau tawm los ntawm ob tus kws kho hniav thiab cov neeg siv lawv, cov khoom siv no yog qhov ruaj khov thiab feem ntau siv los tsim cov khoom siv hloov pauv uas tsim los hnav ntawm lub puab tsaig sab. Qhov no yog vim qhov tseeb tias qhov ntom ntawm cov khoom no yog siab heev thiab cov khoom muaj peev xwm tiv taus siab.

Tam sim no tseem muaj ntau cov hniav tshem tawm niaj hnub ua los ntawm nylon - Acry-free. Raws li kev xyaum qhia, cov khoom zoo li no muaj kev hloov pauv ntau dua li lwm tus, ua rau lawv nyiam hnav. Tsis tas li ntawd, kev tshuaj xyuas ntawm cov khoom siv no feem ntau hais tias lawv muaj qhov zoo nkauj, zoo nkauj, uas qee zaum ua rau nws tsis tuaj yeem paub qhov txawv ntawm cov duab ntawm lub qhov ncauj.

Plastic hniav hniav

Qhov kev xaiv yooj yim tshaj plaws yog cov hniav yas tshem tau. Hauv kev kho hniav niaj hnub no, lawv tau tsim los ntawm cov khoom siv acrylic, uas muaj zog heev, tab sis muaj zog heev los tiv thaiv kev ntxhov siab loj, nws tsis tuaj yeem hu ua.

Cov hniav tshem tawm no yog siv thaum tsis muaj cov hniav hauv qhov ncauj. Raws li txoj cai, qhov no muaj tseeb heev ntawm cov neeg laus. Cov khoom zoo li no tau muab cais rau hauv qis thiab cais rau lub puab tsaig sab sauv. Lawv txuas los ntawm sab li qub-suction khob, uas muaj peev xwm tiv taus tag nrho cov qauv nrog lawv lub zog.

Hauv lawv cov kev tshuaj xyuas ntawm cov hniav uas tshem tau, cov kws kho hniav pom zoo kom xaj lub khob nqus dej rau tus kheej, uas yog ua los ntawm tus tswv tom qab ua qhov kev xav. Vim lub fact tias tag nrho cov seem ntawm xws li ib tug khoom yuav haum snugly rau qhov tsim nyog qhov chaw ntawm lub qhov ncauj kab noj hniav, huab cua yuav tsis sib sau ntawm lub ntsiab, lub xub ntiag ntawm uas ua rau detachment ntawm lub prosthesis thiab nws ntog tawm.

Kev tshuaj xyuas ntawm cov neeg mob uas hnav hom prosthesis hais tias nws yooj yim rau zom thiab tham nrog nws: cov khoom tsim tau zoo tsis ua rau muaj qhov tsis xis nyob.

Yog tias tseem muaj ntau cov hniav hauv qhov ncauj, lawv tuaj yeem ua tau nrog acrylic prosthesis. Nyob rau hauv cov ntaub ntawv no, nws yuav muaj xws li tsis tsuas yog dag dag ntawm cov hniav, tab sis kuj ntawm lub thiaj li hu ua clasps, uas yog ib tug nruj hlau uas haum rau lub ntsiab nyob rau hauv lub kab noj hniav. Qhov loj tsis zoo ntawm hom khoom noyog tias cov xov hlau qub no zoo kawg nkaus pom thaum lub qhov ncauj qhib.

Niaj hnub nimno tshem tau hniav hniav
Niaj hnub nimno tshem tau hniav hniav

Pros ntawm acrylic hniav nyiaj hniav kub

Raws li kev xyaum qhia thiab kws kho hniav sau tseg, hom prosthesis no yog qhov pheej yig tshaj, vim qhov yooj yim ntawm nws cov khoom siv. Raws li txoj cai, tus nqi ntawm cov yas prosthesis yog tsis ntau tshaj 20,000 rubles. Nyob rau hauv cov ntaub ntawv uas nws yog tsim nyog los tsim nws raws li ib tug neeg lub tswv yim tais, tus nqi yuav nce 5,000 rubles.

Ntxiv rau, nws yuav tsum muaj sijhawm tsawg kawg nkaus los tsim, thiab thaum tawg nws tuaj yeem raug coj mus rau tus kws tshaj lij, vim tias cov khoom tau kho yooj yim heev los ntawm cov kws kho hniav.

Txoj kev kho hniav yas

Acrylic hom tshem tawm cov hniav cuav, ntxiv rau pluses, muaj qee qhov tsis zoo. Tshwj xeeb, ntau tus neeg siv nco ntsoov tias lawv loj heev, thiab yog li siv ntau qhov chaw hauv qhov ncauj kab noj hniav. Tsis tas li ntawd, thaum txhim kho xws li lub ntsiab lus thawj zaug, ib tug neeg pib muaj qee qhov tsis xis nyob thaum lub sijhawm hais lus, uas ua rau muaj kev hais lus tsis zoo tshwm sim. Tsis tas li nyob rau lub sijhawm no, qhov kev xav ntawm cov zaub mov yuav cuam tshuam, uas yog vim qhov tseeb tias lub palatal ib feem ntawm lub prosthesis tag nrho npog ib feem ntawm cov receptors nyob rau hauv lub qhov ncauj kab noj hniav.

Raws li kev xyaum qhia, prostheses ntawm cov khoom siv no tsis zoo heev rau kev teeb tsa ntawm sab qis ntawm lub puab tsaig, vim tias lawv kho tsis zoo. Qhov no feature tsis siv rau rooj plaub thaum lub installation ntawm cov khoom yog nqa tawm coj mus rau hauv tus account qhov kev txhawb nqa ntawm tsawg kawg yog obtooth.

Nylon prostheses

Lwm qhov kev xaiv rau cov hniav tshem tawm yog nylon. Lawv yog tsim nyob rau hauv xws li ib txoj kev kom haum rau tag nrho cov duab ntawm lub qhov ncauj kab noj hniav kom ntau li ntau tau. Raws li rau cov khoom nws tus kheej, nws yog ib tug mos nylon, uas tsis yog tsuas yog elastic, tab sis kuj heev resistant rau tag nrho cov hom ntawm deformations. Tias yog vim li cas xws li prosthesis feem ntau ua rau kev teeb tsa ntawm lub puab tsaig qis.

Ntau tus kws kho hniav hauv lawv cov kev tshuaj xyuas ntawm cov khoom tsim los ntawm cov khoom no hais tias lawv nyias dua li yas. Qhov no yog vim cov khoom tshwj xeeb ntawm nylon ua cov khoom siv.

Nylon tshem tawm cov hniav nyiaj hniav kub npaum li cas? Raws li txoj cai, nyob rau hauv ntau lub tsev kho mob lawv cov nqi ntawm 32 mus rau 50 txhiab rubles. Nyob rau hauv cov kev tshwm sim hais tias nws yog tsim nyog rau nruab cov khoom tsis nyob rau hauv tag nrho cov hniav, tab sis tsuas yog nyob rau ntawm ib co, ces nws tus nqi yuav txo tau thiab mus txog rau 40,000 rubles. Yog hais tias nws yuav tsum tau rau nruab ib tug tshem tawm cov hniav nyiaj hniav kub rau ib los yog ob tug hniav (qhov no yog hu ua "npauj npaim" nyob rau hauv kev kho hniav), ces nws tus nqi yog los ntawm 17,000 rubles, tab sis tus nqi no yog heev haum rau cov neeg uas tsis xav kom. txhim kho tus choj los yog vim qee yam tsis tuaj yeem ntxig rau cog.

Cons ntawm nylon hniav nyiaj hniav kub

Raws li kev xyaum qhia, thaum sib cav txog cov hniav uas tshem tau zoo dua, cov nylon tsis tshua muaj yeej. Qhov no feem ntau yog vim qhov tseeb tias tag nrho lawv cov txiaj ntsig xaus nrog qhov tseeb tias lawv tsis loj dua thaum piv nrog cov yas. Yog li dab tsi yog qhov tsis zoo ntawm nylonkhoom?

Xyaum qhia tau hais tias cov neeg uas txhim kho prostheses ua los ntawm cov khoom xws li nylon nyob rau hauv lawv lub qhov ncauj kab noj hniav feem ntau muaj teeb meem nrog lub puab tsaig pob txha cov ntaub so ntswg - nws tsuas atrophies. Yog li ntawd, cov khoom zoo li no yuav tsum tau hloov tas li - lawv sag sai heev, thiab yog li siv tsis tau lossis yuav tsum tau hloov kho, uas tsis yog ua dawb xwb.

Lwm qhov rho tawm tau txheeb xyuas los ntawm cov neeg siv khoom kho hniav lawv tus kheej, uas nyiam nylon prostheses. Qhov tsis zoo no yog qhov tseeb tias cov khoom muaj qhov ntxhib ntxhib ntxhib los mos thiab qee zaum ua rau tsis xis nyob.

Yuav khaws cov hniav uas tshem tau li cas
Yuav khaws cov hniav uas tshem tau li cas

Acry-free

Acry-free yog ib qho kev niaj hnub niaj hnub siv rau ntawm cov hniav tshem tawm uas yog tsim los ntawm acrylic resin tshiab. Nws yog qhov zoo dua ntawm qhov zoo. Cov khoom no tsis muaj methyl methacrylate, yog li cov khoom zoo kawg nkaus hloov mus rau lub puab tsaig ntawm lub puab tsaig.

Raws li rau thaj tsam, nws muaj peev xwm siv tau cov hniav tshem tawm uas tshem tau ntawm cov hniav tag, nrog rau lawv ib feem. Ntau qhov kev tshuaj xyuas ntawm qhov zoo xav txog qhov tseeb tias cov khoom ntawm hom no yog qhov txawv ntawm qhov zoo nkauj, zoo nkauj, lawv zoo li cov ntaub so ntswg tiag tiag uas nyob hauv qhov ncauj kab noj hniav. Raws li cov ntaub ntawv txuas, lawv kuj tau ua los ntawm cov khoom siv pob tshab, ua rau lawv pom tsis pom thaum xub thawj.

Nrog ib nrab ntawm cov hniavtshem tawm cov hniav ntawm hom no raug nqi los ntawm 30 mus rau 37 txhiab rubles. Yog hais tias nws yuav tsum tau ua rau tag nrho lub qhov ncauj kab noj hniav, ces tus nqi nce heev. Hauv kev kho hniav niaj hnub no, kev xyaum ua "npauj npaim" rau 1-2 cov hniav (ib leeg tshem tau cov hniav cuav) kuj tau pom ntau zaus, tab sis lawv cov nqi siab heev - txog 20,000 rubles. Raws li tau hais hauv kev tshuaj xyuas cov neeg siv khoom, txawm tias tus nqi nce siab, cov khoom no yog qhov ua tau zoo heev thiab qhov tseem ceeb rau cov neeg uas tsis xav txhim kho tus choj kho hniav vim xav tau kev zom cov hniav uas nyob ib sab.

khob dentures

Lwm yam txawv ntawm cov khoom siv tes ua uas yog tsim los ntawm cov kws kho hniav niaj hnub. Raws li cov kws tshaj lij hauv daim teb no, clasp prostheses yog ib qho khoom siv zoo tshaj plaws, muab tias muaj qee cov hniav hauv qhov ncauj. Lawv yog tsim los ntawm tsis muaj palatine ib feem - cov khoom yog tsau los ntawm ib tug hlau arc uas khiav nyob rau hauv lub Upper cheeb tsam. Raws li kev xyaum qhia, cov neeg siv hom prosthesis no nyiam heev hais lus, noj thiab hnav nws xwb. Tau kawg, lub sijhawm no yog qhov ntxiv.

Raws li kev kho, clasp prostheses tau txuas rau ob txoj hauv kev. Ntawm cov no, qhov kev xaiv pheej yig tshaj yog nrog lub xub ntiag ntawm clasps, uas twb tau hais los saum toj no. Qhov thib ob txoj kev yog kim kim dua thiab yog li ntawd-hu ua attachments - micro-locks, uas yog txuas mus rau cov hniav uas nyob ib sab, yav tas los coj nyob rau hauv ib tug hlau-ceramic crown. Nws yog nyob rau ntawm cov crowns uas micro-locks yog ntsia, nrog kev pab ntawm uas, thaum twgmuab tso rau, koj tuaj yeem kho cov khoom tshem tawm.

Kev tu cov hniav uas tshem tau
Kev tu cov hniav uas tshem tau

Tus nqi ntawm cov khoom siv

Ntau npaum li cas cov hniav uas tshem tau ntawm qib no? Ntawm chav kawm, lawv tus nqi ncaj qha nyob ntawm seb hom fixation tau xaiv los ntawm tus neeg mob. Nyob rau hauv cov kev tshwm sim uas nyiam tau muab rau classic clasp fixation, ces lawv cov nqi pib los ntawm 30 txhiab rubles. Tus nqi no feem ntau tshwm sim hauv cheeb tsam nroog thiab tej zaum yuav qis dua hauv cov nroog me.

Yog tias tus neeg siv khoom kho hniav nyiam cov khoom siv nrog lub xauv qhov kev xaiv, ces nws yuav tsum npaj them ntau dua 80,000 rubles rau cov khoom. Cov khoom siv rau cov hniav uas tshem tau ntawm hom no yog tsim nyob rau hauv lub teb chaws Yelemees thiab muaj qib siab zoo. Tsis tas li ntawd, tus nqi no suav nrog kev tsim khoom ntawm cov khoom siv tsis yog nws tus kheej xwb, tab sis kuj muaj cov yas nrog cov tuav, nrog rau lawv cov installation. Nyob rau hauv cov kev tshwm sim uas nws yog tsim nyog los nruab ib tug qis dua los yog sab sauv tshem tawm hniav hniav ntawm hom no, ces nws tus nqi yuav raug txo mus rau 50,000 rubles, nyob ntawm seb qhov xwm txheej, lub tsev kho mob thiab lub nroog nyob rau hauv uas nws nyob.

Pros ntawm clasp prostheses

Kev xyaum qhia tau hais tias cov prostheses xyaum tsis tau txais kev tshuaj xyuas tsis zoo. Qhov no tsuas tuaj yeem hais txog cov khoom lag luam zoo thiab cov thev naus laus zis zoo heev rau lawv cov kev tsim. Nyob rau hauv cov lus tso tseg los ntawm cov neeg siv khoom ntawm hom no, nws tau hais tias lawv zoo kawg nkaus faib cov khoom thauj thaum zom zaub mov ntawm cov pos hniav thiab cov hniav uas lawv tau nrawm.

Nyob rau hauv pawg tshuaj xyuasNws kuj tau hais tias cov khoom lag luam no muaj kev xaiv zoo tshaj plaws, uas yog kev ntseeg siab heev, uas tsis tuaj yeem hais txog cov yas lossis nylon prostheses.

Cov hniav uas tshem tau tus nqi ntau npaum li cas?
Cov hniav uas tshem tau tus nqi ntau npaum li cas?

Prostheses tsis palate

Tsis ntev tas los no, kev kho hniav niaj hnub pib siv prostheses uas tsis muaj palatal ib feem. Raws li kev xyaum qhia, lawv tuaj yeem siv tau tsuas yog thaum tsis tag nrho cov hniav ploj lawm. Qhov no yog vim lub peculiarities ntawm fastening lub thiaj li hu ua sandwich, muaj nyob rau hauv hom fastening. Cov txheej txheem rau kev txuas cov khoom mus rau lub puab tsaig yog nqa tawm los ntawm kev muab tso rau ntawm cov hniav uas twb muaj lawm, uas tus tswv tawm ntawm cov hlwb hauv cov prosthesis. Tus so ntawm cov kab noj hniav ntawm lub prosthesis yog imitation ntawm cov hniav, ua los ntawm cov tawv heev thiab ruaj acrylic hom yas. Qhov chaw uas ua rau cov pos hniav yog ua los ntawm polyurethane thiab zoo nkaus li zoo.

Raws li tus nqi ntawm cov khoom lag luam no, nws yog kwv yees li 40,000 rubles. Tus nqi no yog qhov nruab nrab thiab tuaj yeem hloov pauv raws li qhov xwm txheej tshwj xeeb, piv txwv li, muaj ob peb lub abutments uas cais cov yas yuav tsum tau ua, lossis siv cov khoom kim dua.

Yog tias peb piv cov qauv no thiab cov hlua khi, ces cov kws kho hniav feem ntau yuav nyiam qhov kawg, vim tias lawv muaj kev txhim kho txhim khu kev qha.

Yuav khaws cov hniav zoo li cas? Cov yam ntxwv ntawm kev saib xyuas lawv

Txhua tus neeg siv cov hniav tshem tawm yuav tsum tau them sai sai rau yuav ua li caskhaws cov khoom tsim. Nov yog qhov uas tuaj yeem ncua lawv txoj sia.

Thaum txiav txim siab yuav khaws cov hniav ntxuav hniav dawb li cas, nco ntsoov xav txog yam khoom uas lawv ua los ntawm. Yog tias cov khoom siv yog nylon lossis acrylic yas, ces lawv tsis tas yuav muab tso rau hauv cov kua txhua hmo, qhov no tuaj yeem ua tau ib zaug ib lub lim tiam. Yog tias cov khoom siv hlau tau muab rau ntawm cov khoom, ces kev sib cuag nrog dej chlorinated yuav tsum zam - nws yuav ua mob rau lawv.

Nyob rau hauv cov txheej txheem ntawm kev khaws cov khoom, koj yuav tsum nco ntsoov tias nws yog qhov zoo tshaj plaws kom tsis txhob muaj cov tshuaj lom neeg muaj zog, nyob ze lub teeb (piv txwv li, hloov lub teeb hmo ntuj), dej kub npau npau thiab ncaj qha tshav ntuj.

Qhov chaw twg kws kho hniav pom zoo xaiv los khaws cov khoom zoo li no? Qhov kev xaiv zoo tshaj plaws yog cov thawv tshwj xeeb, uas tuaj yeem yuav los ntawm koj tus kws kho mob, khw muag tshuaj lossis khw muag khoom tshwj xeeb. Tsis tas li ntawd, qhov no tuaj yeem ua tiav hauv daim ntaub huv yooj yim. Tag kis sawv ntxov, thaum koj yuav tsum tau muab tso rau ntawm prosthesis, koj tuaj yeem yaug nws nrog dej huv huv kom tsis txhob muaj qhov tsis zoo ntawm qhov ncauj qhuav.

Tau siv rau cov hniav uas tshem tau
Tau siv rau cov hniav uas tshem tau

Yuav ua li cas thiaj tshem tau cov hniav cuav yuav tsum tau saib xyuas? Ua ntej tshaj plaws, cov kws kho mob pom zoo kom siv cov khoom zoo tsim los saib xyuas lawv. Txhua txhua hnub (sab sawv ntxov thiab yav tsaus ntuj) lawv yuav tsum tau ntxuav nrog ib tug tshwj xeeb yoog txhuam thiab cov tshuaj txhuam hniav zoo tib yam (tsis muaj abrasive zog). Tsis tas li ntawd, tsawg kawg ib zaug ib lub lim tiam, cov khoom yuav tsum raug rauantiseptic kev kho mob, uas yog ua los ntawm immersing nws nyob rau hauv ib tug tshwj xeeb tov. Nws tseem yuav tsum tau ntxuav tsis tu ncua tom qab txhua pluas noj, uas nws raug pom zoo kom siv dej sov lossis dej kub.

Kev saib xyuas cov hniav uas tshem tau kuj suav nrog kev kuaj xyuas tsis tu ncua los ntawm kws kho hniav, uas yuav tsum tau ua txhua rau lub hlis. Yog hais tias tus neeg mob tsis ua raws li tag nrho cov kev cai yooj yim muab los ntawm cov kws tshwj xeeb, ces nws txaus ntshai ua rau nws lub qhov ncauj kab noj hniav nyob rau hauv ib tug yug me nyuam rau cov kab mob phem.

Hom kev tshem tawm cov hniav cuav
Hom kev tshem tawm cov hniav cuav

Kev siv cov hniav ntxuav hniav dawb

Cov neeg mob kho hniav feem ntau ntsib teeb meem ntawm kev siv los hnav prosthesis. Raws li txoj cai, qhov no siv rau cov neeg uas tau xaiv cov khoom siv acrylic lossis nylon rau lawv tus kheej. Cov hniav tshem tau pom zoo thaum tsis muaj cov hniav kuj ua rau tsis xis nyob thaum xub thawj.

Txhawm rau kom cov txheej txheem kev noj qab haus huv mus sai dua, cov kws kho mob feem ntau xav kom tsis txhob tshem cov khoom kom txog thaum nws pib hnov zoo li ib txwm nyob hauv lub qhov ncauj. Raws li kev xyaum qhia, qhov no tuaj yeem siv sijhawm li ob peb hnub mus rau ib lub lis piam.

Yuav ua li cas thiaj siv tau cov hniav uas tshem tau thaum qoj ib ce? Rau kev ua tiav sai ntawm lub xeev xis nyob hauv cov txheej txheem ntawm kev hnav cov khoom, cov kws kho mob pom zoo kom nyeem ntawv nrov, txhim kho cov cuab yeej hais lus. Tsis tas li ntawd, koj tuaj yeem ua zom zaws nrog lub puab tsaig.

Nws feem ntau tshwm sim thaum thawj hnub ntawm kev quav tshuajmus rau lub prosthesis, ib tug neeg muaj ib tug gag reflex. Koj tuaj yeem kov yeej nws los ntawm kev ua pa tob thiab exhalations, nrog rau haus dej kom ntau. Koj tuaj yeem xyaum nqus mints.

Nyob rau hauv cov txheej txheem ntawm kev siv rau cov qauv tshem tawm, ib qho yuav tsum tsis txhob hnov qab txog nws cov kev tu tsis tu ncua - nws yuav tsum tau ua txhua hnub nrog txhuam tshwj xeeb thiab tshuaj txhuam hniav maj mam.

Pom zoo: