Ulu hou niho? Noiʻi e olelo aku i ka mea i hiki ia

Inā 'aʻole' oe makemake e hele i ka dentist, e mea ole wale. Ka hapanui o kanaka i pili e pili ana i ke kipa mau hoʻomalu. One like mālama 'ia i loko o ka Netherlands, i ike i ka 24% o nā mākua mai i pono ole nae a me ka makaʻu o nā kauka niho. Eia hou, he nui helu o ka poʻe e ho'āʻo ana e pakele kipa mau nā keʻena lāʻau lapaʻau, a hele aku ma laila wale nō inā loa nō. Kēia kōkua wehewehe kumu 92% o nā mākua i cavities ma paʻa niho.

Akā, he mea maikai kūkala nūhou. Nā haʻawina hōʻike i loko o ka wā e hiki mai ma kahi o mākou paha i ka manawa e hoʻopiha cavities ma ka niho ola ola'aʻaʻa mea e hāʻawi aku ai mākou paʻa mau niho i ka lua o ka manawa.

Pehea e ulu mau niho i ka mano

Ua i mea e, like me nā? Ueony, ao kanaka i mea ole loa laki, no ka mea, ua i, e noho no kekahi 'ia paha o nā niho a pau makua ola. Fans o ka mano, no ka laʻana, e kama'āina i ka mea i kēia mau holoholona i kona palena me ka niho ma ke ola. Kekahi o ia i ka helu o nā niho ma lalo o kaʻili, e kali ana ma na eheu e puku i ka haule. Eia hou kekahi, niho hope e hookiekie ae ia wahi aku o kela mea keia ekolu pule. I mea no ke aha la poe akamai i manaoio i ka seabed littered me ka niho o ka mano.

Ka luna '' ole

Akā, inā i ka mano, ka hapanui mea kolo a me amphibians e like hiki e puku i kā lākou mau niho ma ke ola, alaila, no ke aha la e kanaka, a ka hapanui mammals ua loaa wale elua me ka niho?

I ka mea i loaʻa o ka mea hoʻopili ma waena o ka ka manaʻo pohihihi, a me ka helu ana o ka niho, i mea i loko o ka? Ueo. Mai mammals i ka hiki i ka mama, ka mea, he mau luna 'me ka niho o kekahi mau kinona. No ka laʻana, kuhikuhi canines i wale kekahi hana-i, oiai na premolars - elua a me molars - eha a elima. Oia ka luna '' ole o ka niho hilinaʻi nui ma luna o nā mea he ai i ieaeiieoa?. ? Ueo i aiʻohe, no ka mea hoike, i ka loa luna '' ole o nā niho. No laila, ke kanaka nunui panda a me kaʻohe lemur i luna 'hoʻi mau niho me ka hailonaʻana o ka pahi tubercles, a kōkua i ka mama, a kui a me ka paakiki'aʻaʻa. Penei, o ko lakou mau niho nana i ka ia, a hiki ina ka mea, i ole pili i nā mammals.

Like nā holoholona, e hoihoi aku niho

Aia i nā hana hoihoi examples o na holoholona a me ka hiki, e hoihoi mai i ko lakou mau kui ia ia. Ma na piranhas niho i fused pu, a me ka nana aku e like me ka loa pahi pahi, ka mea. No ia mea, piranhas lilo aku oi ma mua o kekahi niho, a me ka quadrant a pau, a me ka mea, i e hilinai aku ma ka 'ē aʻe ekolu quadrants e ola a hiki i ka hou e hoea.

ʻOiai mammals ku una wehewehe aku ma nā me ka niho - o ka waiu a me ka mau, kekahi o ka poe i paa ai ka hiki e hoʻomōhala hou niho. Manatees, no ka laʻana, e hiki e hoʻomōhala niho ma ke kua o kona waha i ka wā e ola ana.

Other holoholona loaa hoʻokahi wale nō lākou o nā niho, akā, ka mea e mau e ulu ana. Mākou e kamaʻilio e pili ana i rodents, e like meʻiole a iole. Ke ike ole ia mea i ka mea, i anei i keena ma ka niho kumu, a he hoʻonui ai i ka ulu ana o dentin a me ka enamel. He mea pono no ka mea, o ka mea paa ai ka mea ai.

Evolution i hana

He olelo lealea i kanaka loa hoʻomōhala i ka hiki i ka i oi aku mamua o elua me ka niho, no ka mea, evolution pono ua mau oko lakou aloha ia paha ke keiki kakou, e ola. Aka hoi, ke i ka ulu 'ana ma keia manao - kilo'ōlelo aku nei au i ka poʻeʻuʻuku kanaka kēia manawa i ke akamai niho. Kēia kolu molars i ikeia ma kakahiaka adulthood, ka wā mākou iwi ua maopopo hana. A pau no ka mea, ua i lōʻihi ka hoomakaukau ana no lākou iho ai, a hoi palupalu, no laila, i ka pono no ka kolu molars ua eliminated. Eia hou kekahi, ko kakou iwi i loaʻa uuku, a no laila, no nā molars mea, aole wahi kaawale. Ia mea ke kumu mākou i nui a oi kanaka, ka poe e ole i ke kolu molars ike ana. Wale ma kahi o 20% o ka heluna kanaka e mai i ka naʻauao niho.

Ka mua ho'āʻo o nā kānakaʻepekema

Paha mākou loa e ia i ke kolu o kau o ka niho, akā, i ua ole papani iho la i kānakaʻepekema mai ka ho'āʻo e imi i ke ala e puku i ka extracted niho me ka hou, a no hoi ola. Ke keʻena hoʻokolohua ma King ka College London i ana e kanu pū Bio-niho i kaʻiole. ʻepekema, ua hoʻohana kanaka gingival'aʻaʻa a anei i keena maiʻiole, kūpono i hiki ulu hou niho o ka dentin a me ka enamel. Kekahi o na pilikia o ka Inc hoʻohana i kānaka o ia ka mahi o ke kumu aeee ia lŘlŘ ma lūmaua, akā, ma laila ka mea, lilo koke lākou mana.

Aka hoi, 'epekema ma keia mea i ole ma ka wahi, eia hoi hou ano o kanu niho, no ka iʻiʻo pepa'aʻaʻa ua hoʻohana' ia, no ka laʻana, no laila, i ka mea i hiki i ka hope o ka manawa hou niho e e loaʻa, a me ka ano o kanaka.