Sitshitshise ama-Ancestors ethu kwiiyo ezibuhlungu
Izinyathelo zobulumko (okanye i-molar third) ziyingcamango. Kutheni siza kunikwa amazinyo, kwiimeko ezininzi, kuphela ekugqibeleni ukutsalwa? Nangona amazinyo eengqondo yinto yabantu banamhlanje banesabiso, umsebenzi wamazinyo e-
Isizathu Sokuba Sifumane Ukuhlakanipha
Ootata bethu bokuqala basinda ekudleni inyama eluhlaza, amaqoma, iingcambu, amaqabunga namaqabunga.
Indoda yaseCro-Magnon yayingenazo iindawo zokunethezeka zokusebenzisa imimese ukusika nokulungisa ukutya kwayo nokupheka inyama yayingenakukhetha. Ukuhlaziya ezi zifo ezinzima, ezinamaqabunga, ezinamaqabunga zifuna umhlathi obanzi kunye neentsimbi ezinamandla-kubandakanywa namazinyo okuhlakanipha.
Ukuba nayo yonke imingcele emithathu yayiyimfuneko ukuze ookhokho bethu bakwazi ukutya ukutya okuyimfuneko ukuze basinde. Umhlathi omkhulu owawuqhelekileyo okhokho bethu bafumana lula amazinyo okuhlakanipha. Oku kwabenza ukuba baqhube emlonyeni ngokuqhelekileyo.
Ukuxhaphaka kwamazinyo obulumko ngenye yeendlela aba-anthropologists abanokukugqiba ngayo ubudala beentlobo zamathambo. Ngokomzekelo, i-skeleton "yeTurkana Boy" kwiSystems Museum yaseSmithsonian yeMbali yeNdalo ifike kwii-1.6 million zeminyaka edlulileyo. Abaphandi bakholelwa ukuba uneminyaka engama-ezisibhozo okanye ezithoba, ngenxa yecala lokuba inxalenye yakhe yesithathu yayingakaze ivele xa efa.
Isizathu Sokuba Asidingi Ukuhlakanipha Kwamhlanje Namhlanje
Ukukhawuleza phambili namhlanje uze ukhangele into esiyidlayo.
Okubaluleke ngakumbi, jonga indlela esilungiselela ngayo ukutya esikudlayo.
Sinqumle, dice, siphume, ubilise, ususe umpu, uze ubhaka malunga nantoni na esiyidlayo. Yonke into yokulungiselela ukutya yenze ukutya ukutya okulula. Enyanisweni, iingcali zikholelwa ukuba i-jawline yethu iyancinci kwaye imncinci ngaphezu kweminyaka ngenxa yokutya nokulungiswa.
Yisizathu sokuba kutheni amazinyo ethu obulumko akhishwe.
Kutheni Ubulumko Bokuba Iingxaki?
Njengoko abantu banamhlanje bemeko, isakhiwo sethu sonke sitshintshile. Emva kwexesha, umhlathi waba mncinci kwaye onke amazinyo angama-32 ayengakwazi ukulungeleka kakuhle. Njengokuba amazinyo ehlakaniphileyo ahlawulela amanye amazinyo kwaye adala iingxaki. Abanye baze babe "neempembelelo" kwaye bangaqhubeki ngokupheleleyo ngenxa yokuba akukho ndawo kwaye bavinjelwe ngamanye amazinyo.
Akunjalo wonke umntu unamazinyo olwazi, nangona kunjalo. Ubuncinane, abanakuze baqhube ngaphaya komhlaba. Kukho izizathu ezininzi zezi zinto, ngokutsho kwabaphandi . Ezi ziquka i-angle kunye nophuhliso lweengcambu, ubukhulu bayo, kunye nesithuba esifumaneka emlonyeni.
Nangona amazinyo obulumko engabangela ingxaki ngokwemigca yokungena, amazinyo ehlakaniphile anokukhutshwa ukuze kuthintele imiba ezayo njengokuphuhliswa kwezifo. La mazinyo asekude kakhulu emlonyeni onokunyamekela okufanelekileyo ukuba uhlale unempilo kunzima. Ugqirha wamazinyo unokucebisa isigulane ukuba amazinyo abo obulumko abanjwe kwimpilo yexesha elide.
Kutheni Bathiwa "Ukuhlakanipha" Amanqaku?
Imivuzo yakho yesithathu iyona isethi yokugqibela yamazinyo okubonakala emlonyeni. Zihlala zihamba phakathi kweminyaka eyi-17 no-21 ubudala.
Ngenxa yobudala obudala, baziwa ngokuba "ngamaqhinga" amazinyo. Kusenokwenzeka ukuba igama lesiteketiso linento enokuyenza kunye ne-adage okanye inkolelo yokuba "kunye nobudala bufika bubulumko."
> Umthombo:
> Umbutho wase-American Association of Oral and Maxillofacial Surgeons. Ukuxhasa ulwazi kwiCandelo loLawulo lwezilwelisi ngeeNtshumo zeThathu . 2016.
> Pogrel MA, et al. Iphepha eliMhlophe kwiNkcazelo yesithathu yeMolar. I-American Association of Oral and Maxillofacial Surgeons. 2007.
> Smithsonian National Museum of History. Kuthetha ukuthini ukuba ngabantu: KNM-WT 15000. 2016.