Ọ bụrụ na ntutu isi bụ nsogbu maka ndị okenye, mgbe ahụ, ezé ezé (aha sayensị aha caries) bụ nsogbu isi ọwụwa na-emekarị maka ndị nọ n'afọ ndụ niile.
Dị ka ọnụ ọgụgụ si kwuo, ọnụ ọgụgụ nke caries eze n'etiti ndị nọ n'afọ iri na ụma na mba m karịrị 50%, ọnụ ọgụgụ nke caries eze n'etiti ndị agadi karịrị 80%, na n'etiti ndị agadi, ọnụ ọgụgụ ahụ karịrị 95%.Ọ bụrụ na a naghị agwọ ya n'oge, ọrịa nje bacteria nke anụ ahụ siri ike nke eze a na-emekarị ga-eme ka pulpitis na apical periodontitis, na ọbụna mee ka ọkpụkpụ alveolar na ọkpụkpụ agba, nke ga-emetụta ahụike na ndụ onye ọrịa nke ukwuu.Ugbu a, ọrịa a nwere ike izute "nemesis."
Na American Chemical Society (ACS) Virtual Conference and Exhibition na Fall 2020, ndị nchọpụta sitere na Mahadum Illinois dị na Chicago kọrọ ụdị ọhụrụ cerium nanoparticle formulation nke nwere ike igbochi nguzobe nke eze plaque na eze ire ere n'ime otu ụbọchị.Ka ọ dị ugbu a, ndị nchọpụta etinyela akwụkwọ maka patent, na enwere ike iji nkwadebe ahụ mee ihe na ụlọ ọgwụ eze n'ọdịnihu.
Enwere ihe karịrị ụdị nje 700 n'ọnụ mmadụ.N'ime ha, ọ bụghị naanị nje bacteria bara uru na-enyere aka igbari nri ma ọ bụ chịkwaa microorganisms ndị ọzọ, kamakwa nje bacteria na-emerụ ahụ gụnyere Streptococcus mutans.Nje bacteria ndị dị otú ahụ na-emerụ ahụ nwere ike ịrapagidesi ike na ezé wee gbakọta iji mepụta "biofilm", na-eri sugars ma mepụta acidic byproducts nke na-emebi enamel eze, si otú ahụ na-emeghe ụzọ maka "ire ere ezé".
N'ụlọ ọgwụ, a na-ejikarị fluoride dị egwu, nitrate ọlaọcha ma ọ bụ ọlaọcha diamine fluoride na-egbochi ihe ncheta eze ma gbochie ire ure ọzọ.Enwekwara ọmụmụ ihe na-agbalị iji nanoparticles nke zinc oxide, ọla kọpa oxide, wdg. na-agwọ ire eze.Mana nsogbu bụ na e nwere ihe karịrị ezé iri abụọ na oghere ọnụ mmadụ, na ha niile nọ n'ihe ize ndụ nke nje bacteria na-emebi.Iji ọgwụ ndị a eme ihe ugboro ugboro nwere ike igbu mkpụrụ ndụ bara uru na ọbụna kpata nsogbu nke iguzogide ọgwụ nje bacteria na-emerụ ahụ.
Ya mere, ndị nchọpụta na-atụ anya ịchọta ụzọ isi chebe nje bacteria bara uru na oghere ọnụ ma gbochie ire ere.Ha tụgharịrị uche ha na cerium oxide nanoparticles (usoro ihe omimi: CeO2).The urughuru bụ otu n'ime mkpa antibacterial ihe na nwere uru nke ala toxicity na nkịtị sel na antibacterial usoro dabeere reversible valence mgbanwe.N'afọ 2019, ndị nyocha sitere na Mahadum Nankai nyochara usoro nje nje nwere ikecerium oxide nanoparticlesna Science China Materials.
Dị ka akụkọ ndị nchọpụta si kwuo na ogbako ahụ, ha mepụtara cerium oxide nanoparticles site n'ịgbasa cerium nitrate ma ọ bụ ammonium sulfate na mmiri, ma mụọ mmetụta nke ụmụ irighiri ihe na "biofilm" nke Streptococcus mutans kere.Nsonaazụ gosiri na ọ bụ ezie na cerium oxide nanoparticles enweghị ike iwepụ "biofilm" dị adị, ha belatara uto ya site na 40%.N'okpuru ọnọdụ ndị yiri ya, ọlaọcha nitrate nke na-egbochi oghere oghere a maara nke ọma enweghị ike igbu oge "biofilm".Mmepe nke "membrane".
Onye na-eme nchọpụta bụ́ isi nke ọrụ ahụ, bụ́ Russell Pesavento nke Mahadum Illinois dị na Chicago, kwuru, sị: “Uru usoro ọgwụgwọ a dị bụ na o yiri ka ọ dịghị emerụ nje bacteria na-enu ọnụ.Nanoparticles ga-egbochi naanị microorganisms ịrapagidesi ike na ihe ahụ wee mepụta biofilm.Na nsi nke urughuru na mmetụta metabolic na mkpụrụ ndụ ọnụ mmadụ na efere petri erughị nitrate ọlaọcha na ọgwụgwọ ọkọlọtọ.”
Ka ọ dị ugbu a, ndị otu ahụ na-agbalị iji mkpuchi na-eme ka nanoparticles guzosie ike na pH na-anọpụ iche ma ọ bụ na-adịghị ike alkaline nke dị nso na nke mmiri.N'ọdịnihu, ndị na-eme nchọpụta ga-anwale mmetụta nke ọgwụgwọ a na mkpụrụ ndụ mmadụ na traktị nri digestive dị ala n'ime ọnụ ọnụ microbial flora zuru oke, iji mee ka ndị ọrịa nwee mmetụta nchebe zuru oke.
Oge nzipu: Mee-28-2021