Kusintha mtundu wa mano

Aliyense wa ife amafuna kuona mano athu oyera, ndipo timayesera kukwaniritsa izi mwa njira iliyonse. Koma kwenikweni, mtundu wa mano umadalira osati ngati tikuwasambitsa bwino kapena zoipa. Dothi lachikasu lolimba (dentin) pansi pa ziwalo zowonongeka la dzino m'zinthu zambiri zimakhudza mthunzi wa mano. Zonse zomwe timadya pa tsikulo zimasiyanso mano athu. Ndili ndi zaka zambiri, mano amatha kutuluka - amatha kutembenukira chikasu ndikukhala ndi mdima, koma ngati nthawi zonse mumamwa khofi, cola ndi tiyi, kapena mumasuta kwambiri, simungathe kusekerera ngakhale ali wamng'ono.

Kodi chimakhudza bwanji mthunzi wa mano?

Komanso, mano akhoza kuthandizidwa ndi njira zosiyanasiyana zomwe zimachitika m'thupi. Mwachitsanzo, manowa ankawoneka ofiira, a bluish-greenish kapena mthunzi wobiriwira.

• Chitsulo, siliva ndi magnesia zimatha kupangitsa mano manowa, ndipo kutsogolo ndi mercury kumajambula mano awo mumdima wobiriwira.
• Pogwiritsa ntchito nickel ndi mkuwa, mano akhoza kukhala wobiriwira kapena wobiriwira-buluu.
• Mawiri a chromic acid amawapaka iwo mu lalanje.

Ngakhale kukhala motalika mu dziwe lokhala ndi madzi a chlorinated kungachititse kusintha kwa mtundu wa mano. Zikuoneka kuti iwo adzalandira mtundu wofiirira. Kuchita kwa nthawi yaitali mano a mankhwala a ayodini kumabweretsa zotsatira zomwezo.

Mbalame ya mano imatha kuonekera mwa mwanayo ngati amayi ake atenga tetracycline panthawi yomwe ali ndi pakati. Ana omwe amakakamizidwa kutenga mankhwala a tetracycline pamene amapanga mano okhazikika amachitanso vutoli. Minocycline ya mankhwala, yotengedwa ndi anthu omwe amachiza matenda a nyamakazi ndi nyamakazi, imayambitsa maonekedwe a buluu pa mano. Mthunzi wa imvi udzawonetsa matenda a mano chifukwa cha matenda opatsirana.

Nchifukwa chiyani mano amawonekera?

Kawirikawiri pali vuto ngati mawanga pa mano. Amatha kukhala opaque, oyera ndi ang'onoang'ono. Mwinamwake, izi ndi zotsatira za kugwiritsa ntchito madzi, kutsuka dzino ndi jekeseni