Isizathu Sokuba Udinga I-Premolars Yakho Kodwa Akusikho Ukuhlakanipha Kwakho Amazwi
Njengoba nje igama labo libonisa, i-premolars itholakale ngaphambi nje kwemikhosi emlonyeni womuntu. La mazinyo ayaziwa nangokuthi yi-bicuspids. I-premolars ibhekwa njengamazinyo ashintsho, njengoba isebenza ukuqondisa ukudla okuvela kuma- cuspids eduze nomlomo obuyela emuva emaphethelweni oseduze komlomo wokuhlafuna.
Okuyisisekelo se-Human Premolar
Izidalwa zabantu ziba nama-premolars ayisishiyagalombili.
Kunezinhlobo ezimbili ze-premolars ezithandweni ezine zamazinyo emlonyeni ngamunye. Nakuba ubudala obuqondile ngesikhathi sokufika behlukahluka, i-premolar yokuqala ivame ukufika ngokuzungeze eminyakeni engaba nesishiyagalolunye ubudala. I-premolar yesibili ivame ukulandela unyaka ozayo lapho uneminyaka eyishumi ubudala.
I-Anatomy ye-Premolar
I-anatomi ye-premolar ifana neyesi-molar yokuqala neyesibili, nakuba incane kakhulu uma iqhathaniswa. I-Premolars inezimpande ezimbili kuya kwezibili ezifakwe emathanjeni ukuze ziqiniseke.
Ukufana kwabo kuMolars
I-Premolars ifana kakhulu ne-molars ngokwemvelo ye-anatomy nesakhiwo. Kodwa-ke, ngokungafani ne-premolars, abantu abadala bahlelwe ukuthi babe nama- molars angu-12, kanti bane-premolars ayisishiyagalombili kuphela. I-molars iyatholakala kakhulu kunamazinyo angaphambili kuwo wonke amazinyo, njengoba ikhona ngemuva komlomo eceleni kweshlathi. I-Molars iqhubekela phambili ngaphambi kwe-premolars futhi, njengoba okokuqala kuvame ukuvela emlonyeni oseneminyaka engaphansi kwengu-6 ubudala.
Kukhona igebe elihle lesikhathi phakathi kokubonakala kwemikhosi yokuqala neyesibili, njengoba i-molar yesibili ngokuvamile ingaveli kuze kube neminyaka engu-12 noma engu-13.
Izinhlakanipho Zokuhlakanipha
I-molar yesithathu ngokuyinhloko iyaziwa kakhulu kule mibiko. Iningi labantu libhekisela ku-third molar njengezinyo zokuhlakanipha. Amazinyo okuhlakanipha aqhuma phakathi kweminyaka engu-17 no-25 ubudala.
Zivame ukukhishwa emlonyeni , njengoba kuningi isikhala esanele sokubamba, futhi ngaleyo ndlela zingabangela izinkinga ezihlukahlukene zamazinyo ngamazinyo namanye amazinyo. Njengoba amazinyo ehlakaniphile avela ngokuvamile avame amanye amazinyo endleleni, aguqule ukulungiswa kwamazinyo.
Yeka ukuthi ama-Premolars noMolars basebenza kanjani ndawonye
I-Molars yiyona enkulu kunawo wonke amazinyo emlonyeni. Ubukhulu bawo buyadingeka njengoba zisetshenziselwa ukugaya ukudla zibe yizicucu ezincane ukuze zigwinwe kalula, futhi zingagxiliwe. I-molars yenzelwe futhi ihloselwe ukusekela amandla amakhulu avela ekuhloleni, ukugaya nokugaya okwenzeka esakhiweni se-molars. I-premolars itholakala ngqo phambi kwe-molars futhi isetshenziselwa kudlulisa ukudla emuva ukuze ihlolwe.