Ntxoov Ntxawg Ntxoov Ntxawg Yaj

Ntau tus neeg ntseeg hais tias txhuam lawv cov hniav nrog quab yuam lav kom tob dua. Hauv kev muaj tiag, txhuam hniav nyuaj heev yog ib qho ntawm feem ntau ua rau kev puas tsuaj ntawm cov hniav mus tas li. Tus cwj pwm no, lub npe hu ua txhuam hniav txhuam, hnav cov txheej txheej tiv thaiv ntawm cov pos hniav, ua rau tsis pom kev tsis pom kev thiab tsis hnov ​​​​tsw rau cov khoom noj txias lossis qab zib. Nyob rau tib lub sijhawm, kev txhuam hniav nruj kuj thawb cov pos hniav kom rov qab, nthuav tawm cov hauv paus hniav, uas yog softer thiab feem ntau yuav lwj. Thaum cov pos hniav rov qab, nws tsis tshua loj hlob rov qab rau nws tus kheej. Cov txheej txheem kom raug yog siv cov txhuam mos- txhuam txhuam tuav ntawm 45-degree kaum rau ntawm cov pos hniav. Siv tsuas yog lub siab nws yuav siv los tuav lub txiv lws suav siav- maj mam, ncig ncig ua haujlwm tau zoo dua li hnyav rov qab-thiab-tawm sawing. Hloov koj cov txhuam hniav txhua peb lub hlis, raws li cov bristles frayed ua ntau abrasive. Nco ntsoov, txhuam hniav yog hais txog kev tshem cov plaque, tsis txhob txhuam cov stains. Tiv thaiv koj cov enamel hnub no txhais tau hais tias tsawg dua thiab mob tsawg dua tag kis.