CLINICAL AND TECHNOLOGICAL PARTICULARITIES REGARDING UNIDENTAL RESTORATION USING CERAMIC CROWNS WITH A ZIRCONIA INFRASTRUCTURE. A CASE REPORT oleh Ioana Martu, Ionut Luchian, Diana Diaconu-Popa, Andrada Raluca Doscas, Dana Gabriela Bosanceanu, Anca Vitalariu, Odette Luca, Monica Tatarciuc