Ukutshintshwa okutshintshisayo kwimiba ephambili (yobisi) kubantwana kuyinkqubo evamile. Abazali abaninzi banomdla kulo mbuzo, xa amazinyo obisi aguqulwa ukuba ahlale esigxina? Umntu othile kunye nobudala bokutshintshwa kwamazinyo awusungulwanga, le meko iyimntu ngamnye kumntwana ngamnye.
Ukukhula kwamazinyo ezincinci kubantwana kuqala malunga neenyanga ezintandathu, kwabanye, le nkqubo iqala ekuqaleni (iiinyanga ezi-4.5) okanye kamva (iinyanga ezili-9-10). Ngomnyaka wokuqala wobomi, umntwana sele sele eneendidi ezine zamazinyo. Xa uneminyaka emibini okanye emithathu umntwana angakwazi ukubala amazinyo angama-20. Ukulungiswa kwamazinyo aphambili kwenzeka ngokulandelelana okuthile kwaye kuzisa ukuxhalabisa umntwana.
Xa uneminyaka emithandathu ubudala, umntwana uqala ukukhula amazinyo asisigxina, atshintsha indawo yobisi. Le nkqubo ihlala idlulileyo kwiminyaka elishumi elinesithathu, kwaye kwezinye iyakhupha ukuya kwi-15. Ukwakhiwa kwamazinyo ebisi akungafani kakhulu namazinyo asisigxina, kodwa i-milk enamel yincinci kwaye isithsaba sinezicubu ezinzima. Amazinyo aseprayimari anengcambu ephuhliswe kakuhle, kodwa inendawo yokubanjiswa njengezinyo ezinqamle.
Inkqubo yokutshintsha amazinyo
Ukulungiswa, kunye nokutshintsha kwamazinyo obisi kuqhutyelwa ngokuthe ngcembe kwaye kwenkqubo. Ngaphambi kokuqala kwesi siqalo phakathi kwamazinyo kubonakala izixhobo, okanye kuthiwa yi-trems. Ukubonakala kokuthuthumela kuyinkqubo eqhelekileyo, kuba umhlathi womntwana uba mkhulu njengoko ukhula. Ukungabikho kwemichiza kungabonisa ukuphazamiseka ekuphuhlisweni kwee-device maxillofacial kwaye oku kunokuba negalelo ekukhuleni kwamazinyo asisigxina.
Amazinyo emilenze atshintsho kulolu hlobo; Ngeminyaka eli-6 okanye ezisixhenxe, ukuqala kokuhlafuna i-molar (i-molars) ibonakala, ngeminyaka elithoba, i-pre-mens yokuqala (premolars) ibonakala ibe yi-9 ukuya kweyishumi, kwaye ngeminyaka elishumi elinesibhozo i-fangs, i-second premolars ukuya kwishumi elinesibhozo ukuya kweyeshumi elinambini kunye ne-molar yesibili kwishumi elinesithathu. Kwaye ekugqibeleni (imithwalo yesithathu) ikhula iminyaka engama-25, kuthiwa "amazinyo ehlakaniphile".
Kubalulekile ukuqinisekisa ukuba umntwana akathinti amazinyo avulekileyo kwaye akavelisi ukungcola kwezandla emlonyeni, kuba oku kungakhokelela ekuvukeleni.
Izenzo eziyimfuneko xa utshintsha amazinyo obisi
Ukutshintshwa kwamazinyo eziphambili ngokusisigxina yinto yesimo semvelo. Ukuze uphumelele kule nkqubo, kufuneka uqaphele okokuqala: kufuneka ukhusele amazinyo amancinci abantwana, unciphise ukusetyenziswa kwamnandi, ukufundisa umntwana ukuba acoce rhoqo ngamazinyo kwaye, ukuba kuyimfuneko, ungalibali ukunyanga kwicentisa wamazinyo. Kukho abazali abanoluvo oluphosakeleyo ukuba amazinyo obisi awayidingi unyango xa umntwana engaboni ngeenyopho, kuba ekugqibeleni uyaphuma. Kodwa inyolo egulayo ishushubhile yentsholongwane kwaye ingaba ngumthwali wezinyathelo kwizinyo ezihlala phantsi, nangona ingazange ibonakale ebusweni begum. Kucetyiswa ukuba ungalibaziseki unyango lwezinyo ezithelelekileyo, ngaphandle koko kuya kuba neengxaki ngokutshintsha kwamazinyo kumazinyo angunaphakade. Ukuba bekusekho ukuzaliswa kwengcambu, ke inkqubo yokuhlaziya iqhubeka ngokucotha kwaye inyosi yobisi iphazamisa ukukhula okuqhelekileyo kwesigxina, ngoko oku kufuna ukuba kususwe ubisi. Kutheni kubalulekile ukuba uzalise, ungasususi ijoti elichaphazelekayo? Ukuba inyosi yobisi isuswe ngaphambi komhla ofunekayo, amazinyo asondeleyo aya kwinqaba elichitshiweyo, engakhokelela kwisiphene sokuluma.
Ekuqaleni kwexesha lokunyusa kwamazinyo eziphambili, kuyimfuneko ukuya kwidokotela wamazinyo, nangona umntwana engenakho izikhalazo. Ukuthintela ngokukhawuleza kwesi sifo kulula kunokuphelisa ukukhubazeka kwezilwanyana.
Kwenzeka ukuba umntwana oneminyaka emine ukhononda ngamazinyo - oku akunjalo. Isizathu sinokuthi sidibanise, ngoko kufuneka siboniswe kwidokotela wamazinyo.