Ehia na niho o na kanaka? Ehia mau niho i kahi kanaka? 'O ka nui o nā niho pepe i loko o ke keiki

I kēia lā, e hōʻike mākou oe i ka au mamuli e pili ana i ka nui o na niho o kanaka, e like me ka pono i haiia mai e pili ana i kā lākou 'ole, oihana, ano, a pela aku.

Nā'ike nui

'O ka'ōpū he mau iwi iwi i loko o ka waha o ke kanaka. Ho'onohonoho'ia lākou ma ke'ano o 2 mau kaha (kahi ma luna o kekahi). Inā he kanaka somknet lalo a me ka hoaka o ka mau a pu, e paa hou mai la ka niho, e hoʻokēʻai i ka buccal lua o kona mau lua. I kēia kūlana, ho'onui nā kānaka i kahi hilina'i, kahi i a'o'ia e ka'ikeepe e like me ke'ano o ka pilikino.

Nā niho niho - he hō'ailona maika'i loa kēia o ke kino holo'oko'a. Eia na'e, makemake ka hapanui o nā kānaka e kaena wale aku no ko lākou kūlana maika'i maika'i, akā, he nani ke'oke'o maika'i a me ka hau. A pehea e hana ai no kēia, e nānā kākou i ka hopena.

Nā'ano a me nā'ano o nā niho

Ma mua o kou ha'i'ana iā mākou i ka nui o nā niho, pono iā'oe e'ike i ke'ano o kā lākou'ano like'ole i ko lākou'ano a me ko lākou kumu. Ma hope o nā mea a pau,'o kēlā me kēia niho i lawe wale'ia ke hana wale i kāna mau hana,'o ia ho'i ka hopu'ana i ka mea'ai, pa'a i ka waha a me ke ku'i. He mea kūpono nō ho'i e ho'omaopopo he pololei lākou i ka ho'opuka pololei'ana i nā leo.

Pāku'i

Aia nā niho ma ke alo o ke ko'i (4 ma luna a me nā mea ma lalo). 'O ko lākou inoa ma muli o ka loa'a'ana o kahi'oi'oi aku o kahi'oi'oi, kahi e hiki ai i ke kanaka ke ma'a mau i nā huahana, e like me nā mea pa'akikī.

'O Fangs

Ma nā'ao'ao'elua o ka incisors, he mau niho niho paha nā kānaka i'ole i kapa'ia he "penks" (2 mai luna a me nā mea mai lalo mai). Ho'oponopono'ia e wāwahi i nā'āpana li'ili'i mai ka huahana a pau. Pono e ho'omaopopo'ia i loko o ke kanaka, ua ho'okumu'ia nā'ano niho o ka niho ma mua o nā holoholona kū'oko'a. 'O ia ke kumu no ka'ai'ole'ana o nā kānaka i nā'ōko'ona, nā'ōpala a me nā fibrous, e like me ka'i'o.

Nā ki'i'u'uku

I ka'oihana olakino, ua kapa'ia nā niho he premolars. Aia ma luna o ko lāua mau'aha'aha'elua mau kī'aha. 'O nā a'a, ho'okahi paha a'elua paha. He pono nā mea li'ili'i e pono ai i ke kanaka e uhaki i nā mea'ai, a me ka hana hou'ana. Eia hou, hiki ke ho'ohana'ia nā premolar no ka'ai'ana i ka mea'ai.

Nā mea nui nui

Hā'awi'ia nā niho, aia ma nā'anu'u a lalo a me nā ākau, i kapa'ia he mola. 'A'ole like me nā hanana o mua, ua like'ole lākou i nā nui nui, a ua'oi aku i ka ho'okahi kumu ('ekolu ki'eki'e, a me lalo). Eia kekahi, he'ene mehana a me nā huewai kūikawā, i kapa'ia he mau i'a. Aia ma ka'ao'ao o nā mōla nui nui,'ehā a'elima mau ma'i'eha. 'O ka hana nui o nā molah ke'ōni'oki'ana a ke'oki'ana i ka'ai i loko o ka huela ma mua o ka ale'ia'ana.

Ehia mau mola a kekahi kanaka? Ka helu o nā premolars mai ola kanaka o ka luna eha, a me ka ia helu ma ka lalo. No nā mola nui, ua like ko lākou helu me nā mea li'ili'i.

Ke'ano o nā niho

Pono e ho'omaopopo'ia he'elua mau niho o ke kino o kekahi kanaka: kū lō'ihi a mau loa. I kā lākou mau'oihana a me ko lākou'ano, ua like like lākou me kekahi. Eia na'e, he'ano li'ili'i ka nui o nā iwi maha i ka nui a he'oko'a'ē a'e (whitish-bluish). Ma ke ala, ua kapa'ia lākou he "lawai'a".

I ke kūkulu'ana i nā niho pa'a a pa'a mau, he hana ko'iko'i lākou. Ma hope o nā mea a pau,'o ia mau ho'omohala'ana i ka wā'ōpiopio e mālama i ka manawa kūpono no nā incisors, nā canine, nā premolars a me nā mola, a kuhikuhi pū i ko lākou ulu. He mea pono ke ho'omaopopo'ia ka nui o nā niho o ka waiū i loko o ke kanaka he 20 mau'āpana. Ma ke'ano he kumu, ho'omaka lākou e hā'ule i kahi o 3-6 mahina a holo loa i ka 2.5 a 3 mau makahiki.

Ka maopopo pono i ka nui o ka waiū niho kekahi kanaka e hele aku i ke ano o na ia a eia i. I ka manawa ma'amau, ho'omaka lākou e'ike'ia ma mua e 5-6 mau makahiki a ho'opau piha i ka manawa pōkole i nā makahiki he 12-14. Ho'oulu'ia nā mola mua ma ka wahi kūpono ma hope o ka lawai'a. Ke hiki mai ka manawa, e ho'opau'ia nā niho o nā niho lō'ihi, a ma hope iho e ho'oku'u. E like me kou'ike, hiki ke hana i kēia mahele a ma kekahi o ka pū'ulu.

No laila,'o ka pane i ka nīnau e pili ana i ka nui o nā niho i loko o kekahi kanaka, e like paha ia me ka paukū 20. Ma hope o nā mea a pau, nui nā niho pēpē i hā'ule i loko o nā'ōpiopio'ōpio, a ma ia mua aku, e ulu ana nā mea hana mau, nā pi'i, a pēlā a'e.

32 ke ku'una?

E noi ana i kāu kauka lapa'au i ka nīnau o ka nui o nā po'e niho, hiki iā'oe ke lohe i ka pane pane'ole loa: 32. Eia kēia mau helu i helu'ia penei:

• 8 incisors (4 o ia mau mea aia ma ka iwi a lalo a me 4 - ma luna);
• 4 canine (2 ma luna a me ka mea i lalo);
• 8 mau makamae (4 ma lalo a 4 o luna);
• 'o nā mola (6 ma ka ā luna a me ka nui ma ka iwi āpau).

Eia na'e,'o kekahi po'e, ma hope o ka helu'ana i ko lākou mau niho, pinepine lākou i ka hō'oia i ka loa'a'ana o lākou ma kahi o 28 ma kahi o ka 32.'O kēia ke kumu o ka ho'onui'ia'ana o nā mola he 14 mau makahiki ma ka'ao'ao lalo a me luna. 'O nā'ōlelo'ē a'e,'o ka nui o nā mola nui i ka po'e olakino like ka mea like me nā mea li'ili'i ('o ia ho'i,'ewalu mau'āpana). "Nolaila, heaha ka 4?" - ke noi'oe. 'O ka mea'oia'i'o,'o ka nui o nā niho i loko o ke kanaka e no'ono'o'ia me nā mea i kapa'ia he niho o ka "na'auao." Ma ke'ano kūlana, ulu kēia mau iwi iwi i nā po'e i ka manawa mai 17 a 30 mau makahiki. Eia kekahi, hiki'ole iā lākou ke hō'ike i nā mea a pau, e hō'ole'ole ana i ka helu 32.

Ehia mau niho akamai i ke kanaka? Hiki iā'oe ke pane i nā nīnau me kahi helu ma'alahi'ikepili:

32 (he maʻamau ka helu o ka niho) - 28 (paʻa niho, i ulu i ka 14 makahiki) = 4 ke akamai niho, elua o i i aia ma luna a ma lalo ia.

E like me ka mea i'ōlelo'ia ma luna,'a'ole hiki i kēia mau hana iwi ke ulu. 'O ka'ike'ana o kēia'ano ma ke'ano o ke ka'ina o ka ho'olālā,'a'ole e pono ke ho'oha'aha'a'ia nā mola e pono'ole ai ka hana'ana. Wahi a nā'ikepili,'o ka hapalua wale nō o ka heluna o ka heluna o ka honua nei ka pae holo'oko'a'elua o nā kaha ma luna o ka'ūwae lalo a me luna.

'O ka mō'aukala a me ka nānā aku i ka wā e hiki mai ana

Ina he mau niho ka nui o ka poe i ninauia i ka wa i hala, e kani ke ano okoa mamua o ka 32. Mahope o na mea a pau, o ko kakou mau kupuna o ka iwi e hana ana ma ka waha waha he 44 ka nui, he 12 mau niho hou. Over manawa, a me kēlāʻaoʻao o ka luna, a malalo iwi nalo koke kekahi mau hui ana o na niho.

Wahi a nā kānaka lapa'au, i loko o nā makahiki he haneli, hiki ke ho'emi'ia ka lua a me ke kolu o nā molaki, a me nā hā'ina i waena, i nā kānaka. O ke kumu ho i ka mea i ke kālā no ke kanaka ua increasingly ai wale palupalu a me ka mushyʻai no nā māna a e ole pono ai i ka luna-i oleloia iwi ho okumu. Ma ke ala, hiki iā ia ke ho'ololi i ka'oia'i'o e li'ili'i ka iwi āpau. 'Oiai, hiki ke ho'ololi i kēia loli. Akā, i kēia hana, he pono e hā'awi i ke kālā hou i ka'ōpū niho. No kēia mea, pono i nā kānaka ke'ai i nā mea'ai a me nā mea'ai ma'alahi.

'O ke kū'ana o ka niho

Ehia mau niho i loa'a i ke kanaka makua, ua'ike iki mākou i kahi ki'eki'e iki a'e. Akā, e'ōlelo ana no ia mau iwi iwi, kahi a nā kānaka e'ai ai a ho'olako i ko lākou kino me nā mea pono a pau i kēlā lā i kēia lā,'a'ole hiki ke kāpae'ia.

E like me kou'ike,'o kēia māhele nā mea nui'ekolu: nā lei, ka'ā'ī a me ke a'a.

1.'O "Crown" e pili ana i ka māhele o ka niho, i uhi'ia e ka enamel (ka mea pa'a loa i ke kino o ke kanaka), kūpono'ole i ka luku.

2.'O ke kolo he hapa o ka niho i loko o ka pipi.

3. Ke kumu o kekahi niho i kahi pololei ma ka iwi ā.

He mea kūpono ho'i ka'ike'ana i ka nui o nā puka iwi i ho'ohuli'ia e hana i ka kapa "dentin", aia ma lalo o ka enamel. He ikaika loa kēia waiwai. Akā, i kona kū'ē'ana i ka luku a me ka pa'akikī, e ho'omau mau ana i ka lei ali'i. E like me ka mea i'ike'ia,'ae'ia ka dentin i nā kahawai he nui i loko o nā hanana o nā pūnaeho, a'o ia ho'i,'o ia.

'O ka poho o ka niho,'o ia kekahi o nā ku'emaka, a me nā kī'aha koko. 'O lākou ka mea mālama i nā mea'ai kūpono a pau i nā mea ola o ka iwi iwi a ho'ohemo i kā lākou mau mea waiwai.

Ke ho'i nei i ke a'a, pono e ho'omaopopo'ia ua uhi pa'a'ia me ka sima. 'O kēia mea like loa me ka iwi maha. 'O kēia wahi o ka niho i ho'opa'a'ia i nā kaula he nui, a pa'a mau i ka'āpana. Eia na'e, aia nō kekahi o ka mobility o ia mau papa iwi. Ma hope o nā mea a pau, hiki ke hō'emi i kēia mea i ka wā e wāwahi ai lākou i ka'ai'ana i ka mea'ai pa'akikī.

Nui nā kānaka i'ike, akā i loko o nā niho o kānaka a pau, aia kahi kī e puka i loko o ke kumu i ke'ano o ke ala, a ho'opau me kahi puka li'ili'i ma ko lākou mau po'o. E like me kou'ike, ua ho'opiha'ia kēia hollow i ka mea i kapa'ia "pulp". Ma o kona 'ākau e komo i loko o nā ko'i a me nā moku like'ole.

Pehea e mālama ai i kou mau niho?

Inā makemake'oe e mālama i nā niho 32 a pau (ai'ole 28), a laila e nānā pono'ia lākou. No ka hana'ana i kēia,'ōlelo ka po'e akamai he maika'i ke ho'oma'ema'e iā lākou i ke ahiahi a me ke kakahiaka, a ma hope o kēlā me kēia'ai, pono'oe e holoi i ka waha o ka waha. 'O ka mālama i nā rula o ke olakala pilikino e'ae iā'oe e mālama i nā niho a hiki i ka wā'elemakule. Akā inā no kekahi kumu e ma'i ai kou mau niho, a laila, e kama'ilio koke'oe i kāu kauka lapa'au. Ma ke ala, e paipai'ia e kipa iā ia i'elua manawa a'oi a'e. Ma hope o nā mea a pau,'o ka pale'ana i ka make'ana o ka niho a me nā pilikia'ē a'e me nā hana iwi he mea kaumaha'ole ia a'oi aku ka maika'i ma mua o ka ho'oponopono lō'ihi.