Hais lus ntawm cov lej, muaj qhov nruab nrab ntawm 103-104 cov kab mob ib square millimeter ntawm cov hniav, suav nrog cov kab mob streptococci thiab lwm cov neeg nyiam sib koom peb cov zaub mov nrog peb. Kev siv txhuam hniav ob zaug hauv ib hnub yog, ntawm chav kawm, ob qho tib si ib txwm thiab qhuas, tab sis qhov tseeb tseem nyob: nws yuav tsis muaj peev xwm tshem tawm tag nrho cov dab nrog ob peb lub voj voog ncig. Tsuas yog kev ntxuav hniav ultrasonic lossis laser ntxuav hniav dawb pab, tab sis cov txheej txheem thib ob yog tib yam tshuaj pleev ib ce.
Dab tsi yog cov yam ntxwv ntawm kev tu ultrasonic
tib lub ultrasound yog nthwv dej nrog qhov zaus ntawm 1.7 MHz, uas, nrog rau lawv lub zog cuam tshuam, tsuas yog ua rau cov kab mob thiab cov kab mob "thaws" los ntawm cov phab ntsa ntawm cov hniav enamel. Txhuam koj cov hniav nrog ultrasound tsis smear tus kab mob-ua rau loj ntawm cov hniav thiab cov pos hniav - nws rhuav tshem cov chains muaj zog ntawm cov kab mob, tshem tawm qhov ua rau, tsis yog qhov tsos. Nyob rau tib lub sijhawm, cov pos hniav, los ntawm txoj kev, zoo nkaus li zoo, tsis nco qab txog kev los ntshav.
Hauv cov tshuaj niaj hnub no, ultrasound tau siv ntau tshaj li ib nrab xyoo, thiab rau qhov nolub sij hawm tau txais tsuas yog kev tshuaj xyuas zoo. Kev txhuam hniav Ultrasonic tau txais qhov nrov tshaj plaws hauv xyoo 2002 tom qab ntawv tshaj tawm los ntawm cov kws kho mob, uas tau lees paub tias muaj peev xwm ntawm nthwv dej kom deform lub plhaub ntawm microbe, tsis suav nrog qhov muaj peev xwm ntawm kev tsim tawm. Tsis tas li ntawd, lub wavelength ncav cuag cov "qhov nyuaj-mus txog", txawm lub caj dab ntawm cov hniav hauv qab cov pos hniav, tawm hauv cov kab mob tsis muaj caij nyoog.
Yog li, txheej txheem yog dab tsi - hniav ntxuav hniav dawb nrog ultrasound? Nrog kev pab los ntawm ib tug scaler - ib tug tshwj xeeb emitter ntawm ultrasonic tsis, lawv ua nyob rau hauv lub qhov ncauj kab noj hniav, ua rau NW nyuam qhuav pom kev vibrations, ntau perceptible raws li ib tug high-frequency squeak, thaum lub sij hawm uas tartar thiab cov quav hniav raug tshem tawm, cov pos hniav yog kho. Cov hniav enamel thiab txawm tias cov hniav tseem nyob ruaj khov, tab sis cov xim ntuj rov qab los rau nws qhov chaw raug.
Pros and cons of ultrasonic tu
Lub ntsiab zoo ntawm cov txheej txheem no yog nws qhov kev sib raug zoo, kev sib txuas ntxiv, nrog rau lwm cov txheej txheem xws li Air Flow mouthwash lossis hnab tshos curettage.
Nws yog ib qho tsim nyog yuav tsum tau hais tam sim ntawd tias txhuam koj cov hniav nrog ultrasound ua raws li kev kho mob - koj yuav tsum tsis txhob tsim txom nws thiab tsuas yog ua tau nrog kev tso cai los ntawm kws kho hniav. Nyob rau hauv tus txheej txheem ntawm kev tu, tus kws kho mob kuj ua lub hauv paus kwj dej kho mob, polishing ntawm cov hniav nto. Nyob rau hauv tag nrho, cov txheej txheem yuav tsis siv ntau tshaj ib teev thiab yuav tsis ua mob rau tus neeg mob.
Raws li qhov kev nthuav dav ntawm CIS yog cov neeg nyob los ntawm kev tu cov hniav ultrasonic, nws cov nqi raug txo qis - hnub no cov txheej txheem no muaj rau txhua tus, tsis yog txhua tus paub txog nws. Ntau tus ntshai tsam mob - lawv tuaj yeem tshwm sim thaum tshem tawm cov quav hniav, tab sis ntawm qhov tod tes, niaj hnub tshuaj loog daws qhov teeb meem no.
Tsis tas li ntawd, ntau qhov kev txwv tsis pub siv rau kev tu ultrasonic, xws li kev cog qoob loo lossis cov phaj orthopedic, lub plawv tsis xws luag (ultrasound tsis yog dag!) Thiab cov pacemakers, kab mob ua pa. Nws tsis pom zoo kom ua nws thaum hluas thiab muaj kev nkag siab zoo ntawm cov hniav, nrog rau cov neeg mob uas muaj kev pheej hmoo (mob siab lossis kab mob HIV).
Tab sis feem ntau, cov txheej txheem no tsim nyog rau kev mus ntsib kws kho hniav txhua xyoo - tsis yog txhawm rau txhim kho kev zoo nkauj ntawm kev luag, tab sis kuj tiv thaiv kab mob caries.
