Korona za mano

Genetics, ukhondo ndi zochitika zachilengedwe ndizimene zimapangitsa kuti munthu akhale ndi vuto lodziwika bwino. Anthu omwe ali ndi mano abwino mwachirengedwe ndi osowa kwambiri, ambiri a iwo amayenera kupita kwa dokotala wa mano nthaŵi zambiri chifukwa cha chiwonongeko ndi kutaya mano. Izi zimabweretsa mfundo yakuti anthu ambiri akukumana ndi funso la mtundu wa korona wa mano, chifukwa ntchito yocheka yapamwamba imayambitsa matenda osiyanasiyana a thupi.

Kodi korona za mano ndi chiyani?

Mavoti pamene korona amagwiritsidwa ntchito ndi awa:

• kuwonongeka kwa dzino kulikonse chifukwa cha caries ndi mavuto ake, pamene kubwezeretsedwa ndi photopolymer zakuthupi sikutheka kapena kosamveka;
• Kuwonongedwa kwathunthu kwa korona wa dzino ndi mizu yotsalira (kugwiritsa ntchito korona wa mano pa pini);
• pamene kudonthedwa kwa mano;
• monga gawo lofunikira la mlatho;
• monga gawo lomalizira la kukhazikitsa mano;
• kuthana ndi kuchepa kwa mano.

Mitundu ya korona ya mano

Mankhwala amasiku ano amasiyana kwambiri ndi korona makamaka pa zinthu zomwe amapanga. Mitundu ya korona yomwe amagwiritsidwa ntchito mobwerezabwereza ndi:

1. Zitsulo zazitsulo zazitsulo. Ichi ndi chimodzi mwa mitundu yakale yomwe sichitha kugwiritsidwa ntchito muzipatala zamakono. Chifukwa chake ndikuti korona ndizovuta kwambiri, makamaka pa mano amkati. Ngakhale ubwino wawo ndi mtengo wotsika, komanso kukana kutafuna ndi kubwezera. Zitsulo zazikuluzikulu, zomwe korona zoterezi zimapangidwanso, ndizomwe zimatchedwa nickel, chrome, cobalt, golide.
2. Makona a mano omwe amapanga pulasitiki ndi pulasitiki akhala akugwiritsidwa ntchito kwa ma prosthetics osatha. M'makono amakono opanga mano, korona ngati imeneyi amagwiritsidwa ntchito kokha ngati kanthawi. Pambuyo pake, mphamvu zawo ndizokayika kwambiri. Makoma a pulasitiki ophweka amachotsedwa mwamsanga, chifukwa cha kuperewera kwa nkhaniyo. Kuonjezera apo, iwo amadetsedwa ndi madyerero kuchokera ku chakudya ndikudziunjikira okha mabakiteriya ambiri, omwe amachititsa kuoneka ngati fungo losasangalatsa kuchokera pakamwa . Mitengo yachitsulo-pulasitiki imakhalanso yaifupi, chifukwa kuphatikiza kwa chitsulo ndi pulasitiki sizamphamvu ndipo mapulasitiki amatha ntchentche.

Mitundu yamakono ya korona za mano

Metal ceramic korona za mano

Zaka zingapo zapitazo, koronazi zinkaonedwa ngati zachilendo, tsopano zatsikira kumalo otsika kwambiri muzinthu zamakono. Kupindula kwawo ndi mtengo wochepa poyerekezera ndi korona zamakono zamakono, komanso maonekedwe abwino okongoletsa mano ndi mphamvu. Maziko a korona ndi nsalu yachitsulo, pamwamba pake mtengo wa ceramic umatayika.

Mitsinje Yonse ya Ceramic Dental

Pa funso limene korona za dzino zili bwino, pafupifupi madokotala onse amakono amayankha kuti zonse-ceramic. Pambuyo pake, awo Makhalidwe abwino amakhala pamwamba ndipo amakulolani kupanga "Hollywood smile" yotchuka. Zingwe zosaoneka bwino za keramik zimakhalabe ndi keramik imodzi yokha yosafunika, choncho korona iyi imagwiritsidwa ntchito kwa mano opangidwa ndi ma prosthetic omwe alibe masticatory load.

Zamakono kwambiri komanso kukhala ndi makhalidwe abwino mwa madokotala aesthetics ndi amphamvu amatchula korona za ceramic zochokera ku zirconium. Zinthu zosaonekazi zili ndi drawback imodzi yokha - mtengo wamtengo wapatali. Izi zimatheka chifukwa chopanga zipangizo zamakono - koronazi zimapangidwa ndi makina apadera omwe amagwiritsidwa ntchito ndi makompyuta, omwe amatsimikizira moyo wautali komanso makhalidwe abwino.