Maya mazino zvishongo zvakagadzirwa nejade, goridhe uye mamwe masimbi anokosha nematombo, zvichida haana kungopa "gloss" kuvaridzi vavo, asi akashanda sekudzivirira kwecaries uye periodontal chirwere. Iyi pfuma yaive nesamende, iyo yaive yakanamatira kumazino erunako urwu rwese, masayendisiti kubva kuMexico neUnited States akadaro.
Vatsvakurudzi veMayan tsika vanoziva kuti vamiririri vekare vevanhu ava vaifarira zvikuru kupa kumwemwemwerera kwavo kumwe runako, kureva, kugeda mazino avo kana kuchera maburi mukati mavo kuti vaise "kuzadza" kwejade, goridhe, turquoise, jet kana hematite. Izvi zvakaitwawo nokuda kwezvinangwa zvetsika: kuzadza kwakanamirwa kune incisors uye canines mukukura kwekutanga, vakaramba vaine munhu kwehupenyu hwose uye zvichida vane kukosha kwemweya.
Kubwinya kwese uku kwakanamatira pamazino nerubatsiro rwesamende chaiyo. Chimiro chayo chakadzidzwa nemasayendisiti kubva kuAutonomous University yeYucatan (Mexico), pamwe neHarvard neBrown Universities (USA). Vakaratidza zvavakawana mumagazini Archaeological Science: Reports. Mazino ane jewele akatorwa kubva kunzvimbo dzekuchera matongo muGuatemala, Belize neHonduras.
Muchidzidzo ichi, masayendisiti akacherechedza zana nemakumi mashanu emakemikari mamorekuru anowanzo kuwanikwa mumarasi ezvirimwa. Zvichienderana nenzvimbo yakabva zino, simenti, sezvazvakazoitika, yakanga ine seti yakasiyana-siyana yezvinhu, asi zvigadzirwa zvikuru zvakafanana.
Musanganiswa wavo waive wakasimba zvakanyanya. Zvinonzwisisika, nokuti mazino akaputirwa nematombo akapona kusvika nhasi. Masayendisiti akawanawo kuti zvipembenene zvakadaro pameno hazvina kuitwa chete nevanhu vakapfuma, asiwo nevamiririri vekirasi dzisina kubudirira zvikuru. Uye vose varume nevakadzi.
Asi mhedziso huru yevanyori vebasa inobata maitiro ekurapa simenti. Zvakazoitika kuti akanga ane kuporesa uye mugumisiro wehutsanana. Musanganiswa wekunamatira, maererano nevatsvakurudzi, wakakwanisa kuderedza dambudziko rekuputika uye utachiona mumuromo, sezvo chimwe chezvinhu zvayo zvikuru chaiva pine resin, ine antibacterial properties.
Zviviri zvezvisere zvakazadzwa zvakavharwa nemusanganiswa une sclareolide, chigadzirwa chepanyama chinobva kune zvakasiyana-siyana zvemiti, kusanganisira sage uye fodya. Ichi chinhu chine zvese antibacterial uye antifungal mhedzisiro. Mukuwedzera, inonhuwira zvakanaka, saka inowanzoshandiswa muzvinonhuwira. Mukuwedzera, masayendisiti akawana mune simenti yakakosha mafuta emiti yemhuri yemint, iyo inewo anti-inflammatory effect.
Kuchera kwaiitwa zvine hunyanzvi zvekuti kwaisambobata tsinga netsinga dzeropa dziri pakati pezino. Nenzira, vanochera matongo vanoziva kuti maMayans airemekedza nezvehutsanana hwemazino, saka mhedziso dzesainzi dzinotaridzika chaizvo: musanganiswa wesamende haugone kushanda kwete kugadzirisa simbi dzinokosha nematombo, asiwo kudzivirira caries uye periodontal chirwere.
