Bangaki namazinyo zabantu? Bangaki namazinyo umuntu ishintshile? Isibalo ubisi amazinyo ingane

Namuhla sizokutshela ngokuningiliziwe mayelana eziningi kanjani amazinyo zabantu, kanye ukutshelwa isakhiwo sabo, imisebenzi, izinhlobo, kanjalonjalo.

Uhlolojikelele

Amazinyo siyithambo kumiswa ise ngalo ingaphakathi ngomlomo kumuntu. Basuke etholakala ngohlobo lwesikhathi-2 (omunye phezu komunye). Uma umuntu somknet aphansi kanye nemihlathi engenhla ndawonye, namazinyo zivaliwe, ihlukanisa ingaphakathi buccal ka ingaphakathi lalo. Kulesi bite isimo abantu kwakhiwa, okuyinto ufundwa isayensi ezifana orthodontics.

namazinyo Healthy - kungcono inkomba kuhle we umtimba. Nokho, abantu abaningi abagcini nje ufuna ukubukisa isimo sakhe esihle ngokomzimba, kodwa futhi smile enhle ezimhlophe. Futhi yini okufanele uyenze, sizohlola ekupheleni.

Amafomu nezinhlobo eziyisisekelo amazinyo

Ngaphambi kokuba nginixoxele le bangaki abantu babe namazinyo, kufanele uthole ukuthi awakhe kanjani yabo ingafani ifomu nenjongo. Phela, zonke izinyo elilodwa wenza kuphela imisebenzi, okungukuthi ukuthunjwa ukudla, bayiphathe emlonyeni wakho ukuhlafuna. Kufanele kuqashelwe ukuthi abahileleke ngokuqondile indlela efanele yokubiza amagama imisindo.

bezihlahla

Lezi namazinyo kuto ngesikhathi phambi dentition (4 nangaphezulu inombolo efanayo). Igama lakhe kumelwe bathembeke yokuthi babe abukhali cutting edge ngayo nefunda ngayo umuntu kalula ukuluma off neminye imikhiqizo, kuhlanganise kuhle ezinzima.

canines

Kuzo zombili izinhlangothi the amazinyo e abantu namazinyo Isigaxa emise, noma okuthiwa "canines" (2 phezulu futhi phansi esilinganayo). Ziklanyelwe ukuba likhiphe izingcezu ezincane wonke umkhiqizo. Kumele kuqashelwe ukuthi lezi zinhlobo amazinyo womuntu kunalokho wavuma athuthukile kuka ezilwaneni-eziyingozi. Lokhu kungenxa yokuthi abantu bengasebenzisi ukudla okunjalo eluhlaza, okwe lunemicu ezifana inyama.

molars Encane

Ngo umkhuba emtholampilo, lezi namazinyo ngokuthi premolars. Ukuhlafuna yabo ebusweni has lamachubu ezimbili. Ngokuqondene izimpande, bese kungase kube elilodwa noma amabili. molars Small okudingekayo ukuze indoda kwasani imikhiqizo, kanye ukugaya olwengeziwe. Ngaphezu kwalokho, kungenzeka premolars eyayidliwa Ukubhidliza.

molars elikhulu

namazinyo Kwethulwa, esisogwini aphansi kanye ongenhla abizwa ngokuthi molars. Ngokungafani odlule bone ekwakhekeni, bayehluka e osayizi abakhulu, futhi babe impande engaphezu kweyodwa (phezulu amathathu phansi - amabili). Ngaphezu kwalokho, banayo ebusweni ukuhlafuna kanye anemifantu ekhethekile, ababiziweyo emifantwini. Futhi ngo phezulu molars, kukhona lamachubu ezine noma ezinhlanu. Umsebenzi oyinhloko molars - ukudla ukugaya nokuhlanganisa shredding e uginindela ngaphambi kokungenisa oqondile.

Ngakho ukuthi bangaki molars kubantu? Inombolo premolars esuka kubantu enempilo kuyinto phezulu ezine futhi inani elifanayo ezansi. Ngokuqondene molars, inani labo lincane uma efanayo.

namazinyo izinhlobo

Kufanele kuqashelwe ukuthi umuntu amasede amabili amazinyo: lesikhashana unomphela. Ngokusho isimo sawo futhi imisebenzi iyafana komunye nomunye. Nokho, ubukhulu yesikhashana bone ekwakhekeni mancane kakhulu futhi ube umthunzi ezahlukene (white-bluish). By the way, bebizwa "ubisi."

Ngo ekukhuleni kwamazinyo eyinhloko futhi unomphela, badlala ngempela indima ebalulekile. Phela, imfundo ezifana izingane ukugcina isikhala esidingekayo ukuze amazinyo esizayo, canines, premolars futhi molars, kanye nokuqondisa ukukhula kwabo okwengeziwe. Kuyaphawuleka ukuthi inani ubisi amazinyo abantu kuyinto izingcezu 20 kuphela. Ayevame uqale yaqhuma ezinyangeni eziyisihlanu 3-6, futhi ukushiya ngokuphelele iminyaka 2,5 noma 3.

Ukwazi kahle kangakanani ubisi amazinyo umuntu kumele uye encazelweni constants. ngokuvamile ziqala ukuvela emuva lé ngawo-5-6 iminyaka bese ushintsha ngokuphelele isikhathi eminyakeni 12-14. I molars kuqala ukukhula esikhaleni ngemuva yobisi. Lapho sekuyisikhathi, isikhathi Zubikov izimpande ezinganeni chaza futhi ekugcineni iwe. Njengoba yaziwa, le nqubo kwenzeka ngababili kanye ngokulandelana.

Ngakho, impendulo yombuzo othi bangaki namazinyo izinguquko umuntu, kungase ukukhonza kanye sibalo 20. Phela, njengoba abaningi Zubikov yobisi awe izingane ezincane, futhi esikhathini esizayo esikhundleni kubo sikhule amazinyo unomphela, canines nokunye.

32 - kuyinsakavukela?

Buza umbuzo wakho mayelana nodokotela wamazinyo ukuthi bangaki abantu babe namazinyo, ungezwa ngempela impendulo esiqondile: 32. Lesi sibalo yakhiwa izinombolo ezilandelayo:

• 8 bezihlahla (4 wabo esisogwini umhlathi ongezansi futhi 4 - phezulu);
• 4 canines (2 ngenhla futhi okufanayo ngezansi);
• 8 premolars (4 ngenhla bese 4 ngezansi);
• 12 izinyo lomhlathi (eziyisithupha maxilla futhi nenombolo efanayo ngezansi).

Nokho, abanye abantu abalwa izinyo yabo, ngokuvamile ngenxa yesenzo sakhe kuthiwani ukuthi show at 28 esikhundleni 32. Lokhu kungenxa yokuthi i-molars, zikhula engu-14 bakha imibhangqwana 2 kuphela emhlathini engenhla nengezansi, ngokulandelana. Ngamanye amazwi, inani molars zabantu enempilo kukhona nse njengoba ezincane (isb, 8 PC.). "Ngakho baphi abanye 4?" - You buza. Iqiniso lokuthi lonke inani kwamazinyo umuntu ubhekwa kanye okuthiwa kwamazinyo "ukuhlakanipha". Ngokuvamile, ezifana ithambo kwetinhlavu abantu sikhule kusukela engu-17 kuya ku-30 ubudala. Ngaphezu kwalokho, ukuze zingalokothi avele, okwenza isibalo 32 akuyona evamile ngakho.

Ngakho ngokuhlakanipha amazinyo kubantu? Phendula umbuzo, uzokwazi ukuba ukucabanga elula zezibalo:

32 (inombolo evamile amazinyo) - 28 (amazinyo unomphela, ezimila iminyaka engu-14) = 4 ukuhlakanipha amazinyo, ezimbili zazo zitholakala nangaphezulu efanayo.

Njengoba kushiwo ngenhla nje, ezifana bone ekwakhekeni singaphinde sikhule. Leli qiniso kungenxa yokuthi ngokuhamba kwemvelo ezingadingekile ukuze ukuhlafuna molars kancane kancane. Ngokwezibalo, isethi ephelele lwesikhathi amabili umhlathi ongezansi futhi engenhla, kukhona nje kwesigamu abantu kule planethi yethu.

Isizinda esingokomlando futhi icabanga ngekusasa

Uma umbuzo ukuthi bangaki abantu zinamazinyo asethwe esikhathini eside esidlule, ukuthi bekungaba ezwakale esingokomfanekiso esihluke ngokuphelele, kunokuba 32. Phela, okhokho bethu ithambo kumiswa ku ngalo ingaphakathi ngomlomo babebaningi 44, Yilokho 12 Zubikov ngaphezulu. Ngokuhamba kwesikhathi, nge ohlangothini engenhla futhi ngamunye umhlathi ongezansi wanyamalala amabhangqa amaningana amazinyo.

Ngokusho kochwepheshe, eminyakeni ambalwa, abantu kungenzeka futhi ziyancipha molars wesibili nowesithathu, kanye amazinyo lateral. Lokhu kungenxa yokuthi indoda yesimanje uya adle kuphela ukudla elithambile futhi mushy ngoba ukuhlafuna okuyinto akudingeki oshiwo ngenhla ithambo kumiswa. By endleleni, it kungathinta yokuthi Ngomhlathi we abantu yenu kuyovumelana kancane kancane baba ezincane. Yiqiniso, kungaba lezi zinguquko yokuziphendukela kwemvelo washintsha. Kodwa kulokhu kufanele banikelwe umthwalo eyengeziwe kulo lonke uhlelo kwamazinyo. Ukuze wenze lokhu, umuntu kudingeka adle isilwane ngaphezulu noma ukudla imifino indawo.

Isakhiwo izinyo

Bangaki kwamazinyo abadala, sathola kancane ephakeme. Kodwa ukukhuluma ithambo zokwakheka ezifana ngazo abantu badle nsuku zonke futhi ahlinzeke umzimba wakho ngayo yonke izinto ezidingekayo, ungakwazi ungadluli isakhiwo sabo.

Njengoba wazi, lento siqukethe izingxenye ezintathu eziyinhloko: umqhele, entanyeni impande.

1. "Umqhele" libhekisela engxenyeni ebonakalayo izinyo, okuyinto camera nge koqweqwe lwawo (ketshezi sekukaningi emzimbeni womuntu), uma kuqhathaniswa ukumelana ukwa.

2. Intamo iyona ingxenye izinyo afakwa ushingamu.

3. noma impande izinyo itholakala ngqo ithambo emhlathini.

Kufanele kuqashelwe ukuthi le ngobuningi emelelwa bone ekwakhekeni obumba okuthiwa "dentin", etholakala ngaphansi koqweqwe lwawo. Lokhu kwaziswa oluphakeme okuhlala. Nokho, ukumelana kwabo ukwa kanye ubulukhuni kusenzima wawungaphansi umqhele. Njengoba yaziwa, dentin igcwale iziteshi eziningi eziqukethe izinqubo amaseli kusuka okuyinto, eqinisweni, yilokho.

Ngokuphathelene ingaphakathi izinyo, sifaka kwalapho kuhlangana khona imizwa nemithambo yegazi. Bakhulule zonke izakhamzimba ezidingekayo ukuze eziphilayo ithambo kwetinhlavu kanye ukususa imikhiqizo yabo imfucuza.

Ukuya emuva izimpande, kufanele kuphawulwe ukuthi basuke ihlanganiswa ngokuphelele usimende. Lokhu kwaziswa kuyinto iyafana namathambo avamile. Kuyinto kule ngxenye izinyo enamathiselwe Imicu yotshani aphindaphindiwe uyibambile (ku gingiva). Nokho, abanye ukuhamba bone ekwakhekeni sisekhona. Ngempela, ngenxa yalesi kakhulu kunciphisa amathuba ezokwenza besephula ngesikhathi ukuhlafuna ukudla okuqinile.

Bambalwa abantu bazi, kodwa kuzo zonke izinyo komuntu umgodi, ezisabalele empandeni isiteshi, bese iphela imbobo encane e izihloko zazo. Njengoba yaziwa, lesi sikhala eziyize ligcwele okuthiwa "uginindela". Kwaba emihlathini yakhe ukungena ngokusebenzisa eziyimpumelelo emsipheni nezitsha ezehlukene.

Indlela anakekela amazinyo akho?

Uma ufuna ukugcina wonke 32 we izinyo (noma 28), khona-ke ukuba babe khona ngokucophelela babonelelwe. Kuze kube yimanje, ochwepheshe batusa kusihlwa futhi ekuseni zihlanzwe kahle, futhi njalo ngemva kokudla qiniseka uxubha umlomo. inhlanzeko yomuntu siqu kuyokusiza ukuba ugcine zonke amazinyo akho size siguge. Kodwa uma kukhona isizathu ezinyweni lakho ubuhlungu, kufanele axhumane ngokushesha ne-wamazinyo wakho. By the way, kutuswa ukuba uvakashele okungenani kabili ngonyaka. Ngenxa nokuvinjelwa caries zamazinyo kanye nezinye izinkinga ne okwakheke ithambo kubiza ubuhlungu kancane futhi engabizi kunendlela evamile yokwelapha eside futhi kabuhlungu.