Esikhathini sokukhula nentuthuko yengane, ukushintshwa kwamazinyo ebisi nokuqina okunomphela kwenzeka. Inombolo yobisi ingu-20. Uma uneminyaka eyisithupha ubudala, ukuhlushwa kancane kancane kwezimpande zabo futhi kukhululeke. Yilabo abashintshwa kamuva. Bonke abanye baqala ukusikwa yizintambo. Umehluko omkhulu phakathi kwamazinyo wamazinyo ukutholakala kwezimpande ezimfushane nombala we-bluish-white, ngenxa yokuthi bathola igama labo.
Ukulandelana kokubukeka
Imibandela yokuqhuma kwamazinyo ahlala njalo afana nomyalelo okhethekile, okuqinisekisa ukwakheka kokungasebenzi kahle. Manje sizocubungula ngokuningiliziwe, lapho amazinyo ahlala njalo eqala ukuqhuma, nokuthi yikuphi ukulandelana. Ukuze kube lula, amazinyo abizwa yizinombolo, kusukela ekuqaleni kwama-incisors angaphakathi.
Ngakho, phansi kwesithupha (imiholo yokuqala) kuqala kuqala. Ukuqhuma kwabo kufana nesilinganiso seminyaka engama-6-7. Kubalulekile ukuthi uqaphele ukuthi abawuthathi indawo yobisi, kodwa bavele ngokushesha bomdabu. Indawo yabo inikezwa ukukhula komhlathi. Khona-ke i-centralal lateral incisors, i-premolars yokuqala, i-fangs, i-premolars yesibili, i-molars yesibili, inqunywa eceleni komugqa.
Kuyathakazelisa ukuthi isimiso sokuhlanganisa ukuqhuma kubonakala, okungukuthi, amagama afanayo avela kanyekanye. Inqubo yokwakheka kwezimpande ezigcwele kanye nemigqa yamazinyo igcwaliswe nguneminyaka eyi-18. Noma kunjalo, kufanelekile ukukhumbula lokho okuthiwa amazinyo okuhlakanipha , okungavela esikhathini esizayo.
Isithombe sibonisa itafula lesikhathi sokuqothulwa kwamazinyo ahlala njalo ezinganeni. Ngosizo lwalo, umuntu angalandela ngokucacile ukulandelanisa kwentuthuko yezinsiza zamasticatory.
Ukufaneleka kwesikhathi
Sizocubungula ukuthi kungani sidinga ukwazi ukuthi amazinyo angapheli ezinganeni aphuluke nokuthi yini engafanele ifike isikhathi. Ukukhula nentuthuko yengane kwenzeka kancane kancane futhi ngezigaba. Ngakho-ke, noma yikuphi ukungahambisani "nesimiso sezinto eziphilayo" kusho ukwephulwa ngokwemvelo futhi kungabangela izifo ezinzima, kuhlanganise nokutholakala kwamavithamini, ukuphazamiseka kwemizimba, ukukhubazeka kwesistimu yethambo kanye nokungahleleki kwezakhi zofuzo.
Ngokuqondene namazinyo, lokhu kungabangela ukuphazamiseka okwehlukene kwezinkukhu nokukhubazeka kwe-dentition. Futhi, izinkinga ezifanayo zivame ukuphakama ngenxa yokuthi i-front roots ivulekile futhi isetshe ngaphezulu, futhi umhlathi awukaze ukwazi ukukhula ukuze uhambisane nomugqa wonke.