• Ixhotyiswe nge-LCD ekhanyayo ecacileyo, umfanekiso ocacileyo kunye nombala owahlukileyo ubonisa indlela yefayile ngokucacileyo.•Ngokusekwe kwitekhnoloji yomlinganiselo we-multiple frequency network impedance kunye nokulinganisa okuzenzekelayo kuqinisekisa ukuba imilinganiselo ichanekile.•Ikliphu yefayile ezenzekelayo, ikhonkco yefayile, uphando lwefayile.Ukuthintela usulelo olunqamlezileyo ngokufanelekileyo.•Xa usenza umlinganiselo, utshintsho lwesandi lunokubonisa indawo yefayile kwi-root-canal.