20.500.12556/RUL-133809 Utilization of Er:YAG laser in retrieving and reusing of lithium disilicate and zirconia monolithic crowns in natural teeth an in vitro study The study examined the effect of noninvasive crown retrieval/reuse process using an erbium-doped yttrium aluminum garnet laser (Er:YAG). Twenty-six extracted human teeth were prepared for a crown. The crown was milled using lithium disilicate (LD) and zirconia (Z) materials, n = 13 per group, with three for scanning electron microscopy (SEM). The crown was luted using composite resin cement and subjected to a laser retrieval process. After the retrieval process, the crown was cleaned, re-cemented and laser-retrieved two more times, without and with additional tooth reduction mimicking clinical refreshment of dentin. Retrieval time and temperature were analyzed using analysis of variance (ANOVA). Surface changes were observed through SEM. The retrieval times were 267.1 ± 130.43, 220 ± 79.09, 277.1 ± 126.44, 368.4 ± 136.14, 355 ± 159.39, and 419.2 ± 121.36 s for first, second, third LD and Z groups, respectively (p = 0.009). The maximal temperatures were 23.95.1 ± 1.89 °C, 24.86 ± 2.01 °C, 24.17 ± 1.53 °C, 22.88 ± 1.51 °C, 24.03 ± 1.74 °C, and 21.99 ± 1.32 °C for first, second, third LD and Z groups, respectively (p = 0.006). Er:YAG laser crown removal is an effective retrieval tool for all-ceramic crowns. Minimal changes to teeth and crowns were observed following laser irradiation. crown removal laser lithium disilicate debond Er:YAG zirconia odstranjevanje krone laser litijev disilikat true false true Angleški jezik Slovenski jezik Članek v reviji 2021-12-16 10:23:48 2021-12-16 10:23:53 2022-09-13 03:52:42 0000-00-00 00:00:00 2020 0 0 12 str. iss. 12, art. 4357 Vol. 10 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 616.31 2076-3417 10.3390/app10124357 64324867 RAZ_Grzech-Leśniak_Kinga_2020.pdf RAZ_Grzech-Leśniak_Kinga_2020.pdf 1 F1B0067DB1616A5BBF3CF94003FE3372 a2a3830212cb4f65cac6f93db8180d15bf51ea4468f559f87d44b0d3024cadab f8f3211c-5e51-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152166 https://www.mdpi.com/2076-3417/10/12/4357 1 c2e1f582-5e51-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152165 Medicinska fakulteta 0 0 0