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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/183463
Determination of crown discoloration and fluorescence induced by different medications used in regenerative endodontic procedures: an ex vivo study
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Background: Crown discoloration is an undesirable side effect of the use of triple antibiotic paste (TAP) in regenerative endodontic procedures (REPs). The aim of this ex vivo study was to assess the potential for tooth discoloration and induction of fluorescence associated with the use of TAP containing either doxycycline (DOX) or clindamycin (CLIN), and of calcium hydroxide (Ca(OH)2), by spectrophotometric analysis and confocal laser scanning microscopy (CLSM). Material and Methods: A total of forty single-rooted human teeth extracted by therapeutic indication were used. The root canals were enlarged using the step-back technique up to a K #80 file and were randomly divided into four experimental groups (10 specimens each): i)Ca(OH)2 group, ii)TAP with DOX group, iii) TAP with CLIN group, iv) Control group (no treatment). To quantify the change of color of the different groups of teeth included, the Vita Easyshade advance 4.0 spectrophotometer was used. CLSM was used to determine fluorescence. Results: After 28 days of action inside the root canal, no extreme discoloration was visible, to the naked eye, in any of the teeth included in the study. Under the conditions of this ex vivo study, TAP with DOX induced the highest crown discoloration among the medicaments tested. In contrast, Ca(OH)2 and TAP with CLIN did not induce crown discoloration after 28 days. The TAP with DOX group presented the highest fluorescence measurements. Conclusions: Considering the discoloration potential and fluorescence changes in TAP with DOX or other tetracyclines, and the cytotoxic effect of TAPs, we recommend the use of Ca(OH)2 for REPs.
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BETANCOURT HENRÍQUEZ, Pablo andrés, BUCCHI MORALES, María cristina, ARROYO BOTE, Sebastiana. Determination of crown discoloration and fluorescence induced by different medications used in regenerative endodontic procedures: an ex vivo study. _Journal of Clinical and Experimental Dentistry_. 2021. Vol. 13, núm. 8, pàgs. 755-761. [consulta: 23 de gener de 2026]. ISSN: 1989-5488. [Disponible a: https://hdl.handle.net/2445/183463]