Qhov sib txawv tseem ceeb ntawm stannous fluoride thiab sodium monofluorophosphate yog stannous fluoride muaj tin ua cov tshuaj tseem ceeb, hos sodium monofluorophosphate muaj sodium thiab phosphorous ua cov tshuaj tseem ceeb.
Stannous fluoride thiab sodium monofluorophosphate yog ib qho tseem ceeb ntawm cov khoom xyaw hauv cov tshuaj txhuam hniav thiab lwm yam khoom vim tias lawv tuaj yeem tiv thaiv gingivitis, plaque, thiab hniav rhiab heev thiab muab kev tiv thaiv kab noj hniav thiab cov hniav lwj.
Dab tsi yog Stannous Fluoride?
Stannous fluoride yog lub npe lag luam ntawm tin(II) fluoride uas muaj cov tshuaj formula SnF2Cov molar loj ntawm cov tshuaj no yog 156.69 g / mol, thiab nws zoo li cov khoom tsis muaj xim. Lub melting point ntawm no compound yog 213 ° C, thaum nws boiling point yog 850 ° C. Nws cov qauv siv lead ua yog monoclinic. Peb tuaj yeem tsim cov khoom sib xyaw no los ntawm evaporating cov tshuaj SnO hauv HF (40%).
Tsis tas li ntawd, cov tshuaj no yog ib qho tseem ceeb ntawm cov tshuaj txhuam hniav vim tias nws tuaj yeem tiv thaiv gingivitis, plaque, hniav rhiab heev thiab tiv thaiv kab noj hniav. Yog li ntawd, nws feem ntau kim dua lwm cov tshuaj fluorides. Ntxiv mus, nws tuaj yeem ua raws li tus neeg sawv cev txo qis. Fluoride ions tuaj yeem oxidized. Tsis tas li ntawd, cov SnF2 molecules tsim dimers thiab trimers los ntawm kev sib txuas nrog ib leeg.
Raws li American Dental Association (ADA), stannous fluoride tau lees paub tias yog cov khoom muaj kev nyab xeeb rau kev siv vim cov txiaj ntsig ntawm cov tshuaj no ua cov khoom muaj txiaj ntsig zoo hauv cov tshuaj txhuam hniav. Cov khoom ntawm stannous fluoride ua rau nws superior rau sodium fluoride ib yam nkaus. Nws tuaj yeem pab tua cov kab noj hniav thiab tiv thaiv cov hniav lwj los ntawm kev tiv thaiv demineralization thiab kho cov hniav puas ua ntej kev txhim kho kab noj hniav.
Sodium Monofluorophosphate yog dab tsi?
Sodium monofluorophosphate yog ib qho inorganic compound uas muaj cov tshuaj formula Na2PO3F. Cov molar mass ntawm no compound yog 143 g / mol. Nws yog feem ntau abbreviated li MFP. Nws kuj yog ib qho ntsev compound uas tsis muaj xim, tsis muaj ntxhiab, thiab yooj yim yaj hauv dej. Txawm li cas los xij, nws yog insoluble hauv cov kuab tshuaj organic xws li ethanol thiab ether. Nws tshwm raws li cov hmoov dawb thaum tsim industrially. Daim ntawv thov-wise, nws yog ib qho khoom muaj nyob rau hauv cov tshuaj txhuam hniav.
Hauv kev tsim khoom lag luam, MFT yog tsim los ntawm cov tshuaj tiv thaiv ntawm sodium fluoride thiab sodium metaphosphate. Raws li lwm txoj kev, nws tuaj yeem tsim los ntawm kev kho tetrasodium phosphate nrog hydrogen fluoride.
Thaum xav txog cov teeb meem hniav lwj, MFT ua raws li cov tshuaj fluoride uas los ntawm cov tshuaj txhuam hniav. Nws tuaj yeem tso cov tshuaj fluoride los ntawm hydrolysis ntawm cov tshuaj. Cov tshuaj fluoride no tuaj yeem tiv thaiv cov hniav los ntawm cov kab mob uas ua rau cov kab noj hniav.
Qhov txawv ntawm Stannous Fluoride thiab Sodium Monofluorophosphate yog dab tsi?
Stannous fluoride thiab sodium monofluorophosphate yog cov khoom xyaw tseem ceeb hauv cov tshuaj txhuam hniav thiab lwm yam khoom. Qhov sib txawv tseem ceeb ntawm stannous fluoride thiab sodium monofluorophosphate yog tias stannous fluoride muaj tin ua cov tshuaj tseem ceeb. Lub caij no, sodium monofluorophosphate muaj sodium thiab phosphorous ua cov tshuaj tseem ceeb. Ntxiv mus, stannous fluoride tuaj yeem tiv thaiv gingivitis, plaque, thiab cov hniav rhiab heev thiab tiv thaiv kab noj hniav, thaum sodium monofluorophosphate tuaj yeem pab tiv thaiv cov hniav lwj.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm stannous fluoride thiab sodium monofluorophosphate nyob rau hauv daim ntawv tabular rau kev sib piv ntawm ib sab.
Summary – Stannous Fluoride vs Sodium Monofluorophosphate
Stannous fluoride yog lub npe lag luam ntawm tin (II) fluoride uas muaj cov tshuaj formula SnF 2, hos Sodium monofluorophosphate yog ib qho inorganic compound muaj cov tshuaj formula Na 2PO3. Qhov sib txawv tseem ceeb ntawm stannous fluoride thiab sodium monofluorophosphate yog tias stannous fluoride muaj tin ua cov tshuaj tseem ceeb, whereas sodium monofluorophosphate muaj sodium thiab phosphorous li. cov tshuaj tseem ceeb. Ntxiv mus, stannous fluoride tuaj yeem tiv thaiv gingivitis, plaque, thiab cov hniav rhiab heev thiab tiv thaiv kab noj hniav, thaum sodium monofluorophosphate tuaj yeem pab tiv thaiv cov hniav lwj.
