•Ifakwe i-LCD ekhanyayo ecacile, isithombe esicacile nombala ohlukile kubonisa umzila wefayela ngokucacile.•Ngokususelwe kubuchwepheshe obuthuthukisiwe bokulinganisa inethiwekhi yamafrikhwensi amaningi kanye nokulinganisa okuzenzakalelayo kuqinisekisa ukuthi izilinganiso zinembile.•Ikliphu yefayela ekwazi ukuziphendulela, ihhuku lefayela, uphenyo lwefayela.Ukugwema ukutheleleka ngegciwane ngempumelelo.•Lapho wenza ukulinganisa, izinguquko zomsindo zingabonisa indawo yefayela ku-root-canal.