Amenyo adufasha kuruma ibiryo, kuvuga amagambo neza, no gukomeza imiterere yimiterere yacu.Ubwoko butandukanye bw'amenyo mu kanwa bukina inshingano zitandukanye bityo bikaza muburyo butandukanye.Reka turebe amenyo dufite mumunwa ninyungu zishobora kuzana.
Ubwoko bw'amenyo
Imiterere y'amenyo ibemerera gukora umurimo wihariye murwego rwo guhekenya ibiryo.
8 incisors
Amenyo yimbere cyane mumunwa yitwa incisors, ane hejuru na ane, yose hamwe.Imiterere yimyenda iringaniye kandi yoroheje, gato nka chisel.Barashobora kuruma ibiryo mo uduce duto mugihe utangiye guhekenya, bikagufasha kuvuga amagambo neza mugihe uvuga, kandi bikagumana iminwa nuburyo bwo mumaso.
Amenyo atyaye kuruhande rwa incisors yitwa kineine, abiri hejuru na abiri hepfo, yose hamwe.Amenyo ya Canine ni maremare kandi yerekanwe muburyo kandi bigira uruhare runini mugikorwa cyo gutemagura ibiryo, nk'inyama, bityo inyamanswa zisanzwe zifite amenyo ya kine yateye imbere.Ntabwo ari intare ningwe gusa, ahubwo na vampire mumateka!
8 premolars
Amenyo manini, ashimishije kuruhande rw amenyo ya kine yitwa premolars, afite ubuso buringaniye kandi yazamuye impande zombi, bigatuma akwiriye guhekenya no gusya ibiryo, kuruma ibiryo mubunini bukwiriye kumira.Abakuze bakuze mubisanzwe bafite premolar umunani, bane kuruhande.Abana bato ntibafite amenyo ya premolar kandi mubisanzwe ntibaturika nk amenyo ahoraho kugeza bafite imyaka 10 kugeza 12.
Molars nini mu menyo yose.Bafite ubuso bunini, buringaniye hamwe nu mpande yazamuye ishobora gukoreshwa mu guhekenya no gusya ibiryo.Abakuze bafite imitsi 12 ihoraho, 6 hejuru na 6 hepfo, na 8 gusa kuri papilae mubana.
Umuyoboro wanyuma ugaragara witwa amenyo yubwenge, azwi kandi nk amenyo yubwenge ya gatatu, ubusanzwe aturika hagati yimyaka 17 na 21 kandi aherereye mugice cyimbere cyumunwa.Nyamara, abantu bamwe ntibafite amenyo yubwenge uko ari ane, kandi amenyo yubwenge amwe ashyingurwa mumagufwa kandi ntabwo yigeze aturika.
Mugihe abana bakuze, amenyo ahoraho atangira guturika munsi y amenyo yumwana.Mugihe amenyo ahoraho akura, imizi y amenyo yumwana yinjizwa buhoro buhoro amenyo, bigatuma amenyo yumwana arekura akagwa, bigatuma umwanya w amenyo ahoraho.Ubusanzwe abana batangira guhindura amenyo kumyaka itandatu bagakomeza kugeza bafite imyaka 12.
Amenyo ahoraho arimo incisors, canine, premolars, na molars, mugihe amenyo yumwana adafite premolar.Amenyo asimbuza amababi manini yitwa premolars ya mbere n'iya kabiri.Mugihe kimwe, manda izakomeza gukura mugihe cyubwangavu, irema umwanya munini wa molars.Imyenda ya mbere ihoraho isanzwe iturika hafi yimyaka itandatu, naho iyakabiri ihoraho isanzwe igaragara nkimyaka 12.
Umuyoboro wa gatatu uhoraho, cyangwa iryinyo ryubwenge, mubisanzwe ntiriruka kugeza kumyaka 17 kugeza 25, ariko rimwe na rimwe ntishobora na rimwe kwigaragaza, guhinduka iryinyo ryatewe, cyangwa ntirishobora guturika na gato.
Muri make, hari amenyo 20 yumwana n amenyo 32 ahoraho.
Video y'icyumweru:https://youtube.com/shorts/Hk2_FGMLaqs?si=iydl3ATFWxavheIA
Igihe cyo kohereza: Ukuboza-01-2023