2025-12-302025-12-302025LOUREIRO, Marco Antônio Zaiden et al. Impact of fixation pins and metal sleeves on the precision of guided endodontics: an analysis using extracted teeth. Journal of Clinical and Experimental Dentistry, Valencia, v. 17, n. 9, e1035-42, 2025. DOI: 10.4317/jced.62645. Disponível em: https://www.medoraljced.com/jced/?s=Impact+of+Fixation+Pins+and+Metal+Sleeves+on+the+Precision+of+Guided+Endodontics. Acesso em: 19 dez. 2025.e- 1989-5488https://repositorio.bc.ufg.br//handle/ri/29279Background: This study aimed to evaluate the accuracy of guided endodontic access and fiberglass post removal, comparing stabilization methods such as metal sleeves and fixation pins. Material and Methods: Sixty-four extracted human teeth (32 mandibular molars and 32 single-rooted teeth) were divided into groups based on the use or non-use of fixation pins and metal sleeves. Precision was assessed using pre- and post-procedure CBCT scans to analyze deviations in bur positioning. Results: For guided endodontic access, significant differences in angular deviation were found between the group using fixation and no sleeves (2.64°) and the group without fixation and sleeves (1.37°) (P<0.05). No other significant differences were found in either access or post removal procedures (P>0.05). Mean deviations in post removal ranged from 1.98° to 2.15°. Conclusions: Guided endodontic techniques are highly reliable, with metal sleeves and fixation pins offering no significant improvement in precision.engAcesso Abertohttp://creativecommons.org/licenses/by-nc-nd/4.0/Guided endodonticsDental post removalCBCT analysisEndodontic guide precisionEndodontic access deviationArtigo10.4317/jced.62645