I-Molars yizinkoma ezinzima zamazinyo abantu
Ebhekwa njengama-molars noma amazinyo ama-molar, lawa ngamazinyo ahlala phansi emlonyeni. Zingahluka ngosayizi nokuma kodwa zingamazinyo amakhulu emlonyeni. I-Molars isondelene futhi isetshenziselwa ukugaya ukudla ezingxenyeni ezigwenywa kalula. Amazinyo amancane amancane angaphambili asetshenziselwa ukulima nokudla ukudla. I-Molars yakhelwe ukusekela amanani amakhulu kakhulu ekuhlaleni, ekugaya nasekufeneni, futhi i-molar ngayinye inamathele emathanjeni omhlathi ngezimpande ezimbili kuya kwezine.
Umphakathi omdala unemikhawulo eyishumi nambili, enesithupha emgqeni ongaphezulu (okhonjiswe nodokotela wamazinyo wakho ngokuthi "maxillary" endaweni yawo emgqeni ongaphezulu) futhi ayisithupha emangcwabeni angaphansi (ekhonjiswe ngokuthi "mandibular" ngodokotela wamazinyo endaweni yawo umhlathi ophansi). Ngalunye uhlangothi lomhlathi ophezulu naphansi unemikhosi emithathu.
Izinhlobo ze-Molars
Kunezinhlobo ezintathu ze-molars. Lokhu kungena ngemuva kokuba ingane ilahle amazinyo abo:
- Imikhosi yokuqala, ebizwa nangokuthi imikhosi yeminyaka eyisithupha ngoba iyona yokuqala kulaba abathathu ukuqhuma cishe iminyaka eyisithupha.
- Imikhosi yesibili, ebizwa nangokuthi imikhosi yeminyaka eyishumi nambili ngoba iqhuma cishe eminyakeni eyi-12.
- Imikhosi yesithathu, noma amazinyo okuhlakanipha, avela phakathi kweminyaka engu-17 no-25.
Ngokwemvelo, ama-molars aklanyelwe ukusekela amandla amakhulu kakhulu ekuhlaleni, ekugaya nasekufeneni, ngokuba nomqhele omkhulu nezimpande ezimbili kuya kwezine ezifakwe emathanjeni omhlathi.
Kungani Sinezinhlakanipho Zokuhlakanipha?
Imikhosi yesithathu, noma amazinyo ehlakaniphile , yizigcawu ezivela esikhathini esidlule sokuziphendukela kwemvelo lapho umlomo womuntu wawukhudlwana futhi uhlala ngaphezulu kwamanye amazinyo.
Lawa mazinyo engeziwe ayesebenza ekuhloleni ukudla okukhethekile, njengezimpande, amantongomane, amaqabunga kanye nezinyama ezinzima. Lolu hlobo lokudla lwalukhuni kumazinyo-ikakhulukazi ngaphandle kwamathuluzi okulungisa esiwusizo namuhla njengamahlumela amazinyo, unamathisele, kanye ne-floss-ngakho amazinyo okhokho bethu ayebhekene nokugqoka nokulahlekelwa okuphawulekayo ngenxa yokubola kwamazinyo .
Ngisho nokuthandwa kwamanje kwe "Paleo," abantu banamuhla abadli ukudla okudinga la mazinyo engeziwe. Ukudla kwethu ngokuvamile kukhulu kakhulu, futhi ngokupheka nezitsha, usuku lwezinyo lokuhlakanipha oluwusizo seludlulile. Ukuziphendukela kwemvelo, noma kunjalo, akukatholanga nathi, ngakho-ke sisathola lawo mazinyo engeziwe ngasekuqaleni kwentsha yethu.
Inkinga Yokuhlakanipha Amandla
Nakuba kungakashiyanga amazinyo ethu okuhlakanipha okwamanje, ngokuzenzakalelayo, ukuguquka kwemvelo kuye kwenza izinguquko ngobukhulu bama-jawbones ethu kuwo wonke umlando wethu. Imihlathi yabantu banamuhla imincane kunabokhokho bethu. Lokhu kubonisa izinkinga eziningi lapho lezozinyosi zokuhlakanipha zizama ukungena ngaphakathi.
Lapho amazinyo ehlakaniphile enza, angavinjelwa amanye amazinyo ethu, futhi kuthiwa " athintshiwe ." Uma izinyo zokuhlakanipha ziqhuma kancane, lokhu kungadala indawo enzima yokuthola amabhaktheriya angabangela izifo ezinzima zezinsini nezicubu ezizungezile. Amazinyo okuhlakanipha angase aphume nanini. Lokhu kuhambisana nezinkinga futhi, kubandakanya ukuthuthukiswa okungenzeka kwamakhredsi noma izicubu ezingenza umonakalo omkhulu emaseni nasemasenjini uma kungashiywe ngaphandle kokuphazamiseka.
Lezi zinkinga yimbangela yokuthi abantu abaningi badinga ukususwa kwamazinyo abo okuhlakanipha.
Kunconywa ukuthi lokhu kuhlinzeka kwenziwa ngesikhathi somuntu omdala lapho kunoma yikuphi ukucindezeleka okungenzeka kuncane kakhulu futhi okuncane.
Kubantu abathile, okubalwa ngamaphesenti angaba ngu-15 wabantu, kungenzeka kubekho isidingo esincane sokuthi amazinyo okuhlakanipha asuswe ngoba angena ngaphandle kwezindaba. Ngisho nakulezi zimo, kungase kuphakanyiswe ukuthi amazinyo okuhlakanipha asuswe ukuze agweme izinkinga ezingase zithuthuke kamuva ekuphileni lapho ukuhlinzeka kunakho konke okungenzeka kube nezinkinga nezikhathi zokuphulukisa isikhathi eside.