Txhuam Txhuam Txhuam Txhuam Txhuam Hniav

Cov txhuam hniav yog cov cuab yeej tseem ceeb uas tib neeg siv los tswj qhov ncauj kom huv. Muaj ntau ntau yam thiab hom ntawm txhuam hniav nyob rau hauv kev ua lag luam, yog li dab tsi ntawm cov txhuam hniav yog tsim nyog xaiv? Qhov no yuav tsum tau txiav txim siab los ntawm cov hauv qab no:

Qhov loj ntawm lub taub hau txhuam hniav: Raws li cov kev cai ntawm American Dental Association, qhov ntev ntawm tus txhuam hniav taub hau yuav tsum yog 2.5-3 cm, qhov dav yuav tsum yog 0.8-1 cm, muaj 2-4. kab ntawm bristles, txhua kab ntawm 5-12 bristles, pem hauv ntej ntawm tus txhuam hniav taub hau yuav tsum Obtuse. Cov kev cai no tuaj yeem siv los ua ib qho kev siv rau tib neeg thaum xaiv tus txhuam hniav.

Lub hardness ntawm bristles: Feem ntau, nws tuaj yeem muab faib ua peb hom: mos, nruab nrab thiab tawv. Feem ntau, tus txhuam hniav nrog nruab nrab hardness yog tsim nyog. Thaum muas txhuam hniav, koj tuaj yeem nias lub bristles nrog koj cov ntiv tes. Yog tias koj tus ntiv tes xav tias tingling, nws txhais tau hais tias nws nyuaj heev thiab yuav tsum tsis txhob siv. Cov txhuam hniav ntawm cov txhuam hniav muag muag feem ntau yog nylon bristles. Lub elasticity, uniformity thiab hardness ntawm nylon bristles yog zoo dua li npua plaub hau txhuam hniav, uas yog ntau conducive rau qhov ncauj noj qab haus huv.

Lub kaum sab xis ntawm tus txhuam taub hau thiab tus kov: Muaj ob hom txhuam hniav muaj nyob hauv khw: ncaj thiab kaum. Hom ncaj yog muaj zog dua thaum siv, thiab cov txhuam hniav txhuam hniav muaj kev tu zoo dua ntawm cov hniav tom qab. Lub kaum sab xis ntawm 17 txog 20 degrees yog qhov tsim nyog.

Sab saum toj ntawm cov bristles: Sab saum toj ntawm txhua lub bristles yuav tsum yog puag ncig thiab blunt, tsis muaj lub kaum ntse ntse, thiab tuaj yeem txiav txim los ntawm tes thaum yuav khoom.

Txhuam txhuam hniav tshwj xeeb: Rau cov neeg mob uas muaj kab mob hauv lub cev lossis cov neeg laus, cov pos hniav yuav txo qis thiab qhov chaw interdental nce. Ntxiv nrog rau cov txhuam hniav dav dav, yuav tsum siv cov txhuam hniav interdental. Cov txhuam hniav ntawm cov txhuam hniav no yog tapered, elongated, thiab lwm yam. xaiv tau. Tseem muaj ib tug txhuam hniav uas tsuas muaj ob kab ntawm bristles, uas yog siv los zaws cov pos hniav. Lub concave- txhuam hniav zoo li tus nrog rau sab nrauv ob kab ntawm bristles ntev tshaj li nruab nrab ob kab ntawm bristles yog tshwj xeeb yog siv rau cov neeg uas tab tom kho orthodontic. Cov txhuam hniav no tuaj yeem tsis tsuas yog ntxuav cov hniav, tab sis kuj ntxuav cov khoom seem ntawm cov aligner. Rau cov neeg uas muaj tes thiab taw tsis yooj yim (xws li cov neeg mob stroke), cov txhuam hniav hluav taws xob, lub teeb lub zog ion txhuam hniav, thiab lwm yam.

Tswv yim

Hard- txhuam hniav txhuam hniav muaj teeb meem rau cov pos hniav thiab tuaj yeem ua rau cov pos hniav los ntshav thaum mob hnyav. Cov txhuam hniav uas muag hauv khw yog ntim hauv cov hnab yas, uas tsis yooj yim rau hnov ​​​​cov tawv tawv ntawm bristles. Cov neeg siv khoom tuaj yeem tau txais cov ntaub ntawv hais txog qhov tawv tawv los ntawm kev soj ntsuam cov bristles: cov saum ntawm cov bristles zoo li tsis sib xws, thiab cov bristles tau teem tsis tu ncua. Zoo huv si rau ib tug tawv- txhuam hniav txhuam.