{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,2]],"date-time":"2026-03-02T22:09:00Z","timestamp":1772489340386,"version":"3.50.1"},"reference-count":40,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2023,11,23]],"date-time":"2023-11-23T00:00:00Z","timestamp":1700697600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004586","name":"Funda\u00e7\u00e3o Carlos Chagas Filho de Amparo \u00e0 Pesquisa do Estado do Rio de Janeiro","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004586","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int J Paed Dentistry"],"published-print":{"date-parts":[[2024,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Eccentric instruments have been proposed as more effective and less time\u2010consuming for endodontic instrumentation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Aim<\/jats:title><jats:p>To compare biomechanical outcomes of different instrumentation systems and time undertaken for instrumentation in resin prototypes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>Sixty standardized prototypes of mandibular second primary molars were instrumented according to the following systems: K\u2010files, ProTaper Next (PTN), XP\u2010endo Shaper (XPS), XP\u2010endo Finisher (XPF), XP\u2013Clean (XPC), and Sequence Baby File (SBF; <jats:italic>n<\/jats:italic>\u2009=\u200910\/each). Irrigation was performed with saline with simultaneous aspiration, and time spent was recorded. The prototypes were micro\u2010CT\u2010scanned before and after the instrumentation, and image sets were reconstructed and registered. Non\u2010instrumented areas, accumulated debris, removed root material volume, and canal transportation were quantified. Data were analyzed through ANOVA, the Kruskal\u2013Wallis test, and the Wilcoxon signed\u2010rank test (<jats:italic>\u03b1<\/jats:italic>\u2009=\u20095%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>K\u2010files and SBF resulted in more instrumentation time (<jats:italic>p<\/jats:italic>\u2009&lt;\u2009.05). SBF, XPC and PTN removed less root dentine (<jats:italic>p<\/jats:italic>\u2009&lt;\u2009.05), but PTN left more untouched areas (<jats:italic>p<\/jats:italic>\u2009&lt;\u2009.05). Accumulated debris were lower for XPC and SBF (<jats:italic>p<\/jats:italic>\u2009&lt;\u2009.05). Canal transportation was similar among the groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Rotary systems reduced instrumentation time, whereas SBF and XPC resulted in more conservative instrumentation, with less debris accumulation and non\u2010instrumented areas. A dedicated paediatric endodontic system (SBF) outperformed eccentric instruments in terms of effectiveness.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ipd.13136","type":"journal-article","created":{"date-parts":[[2023,11,25]],"date-time":"2023-11-25T00:10:29Z","timestamp":1700871029000},"page":"383-393","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Instrumentation time and effectiveness of hand and rotary files in a prototyped second mandibular primary molar: A <scp>micro\u2010CT<\/scp> study"],"prefix":"10.1111","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3319-7132","authenticated-orcid":false,"given":"Emily Feitosa","family":"R\u00eago","sequence":"first","affiliation":[{"name":"Department of Pediatric Dentistry and Orthodontics, School of Dentistry Universidade Federal do Rio de Janeiro\u2010UFRJ  Rio de Janeiro Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2192-0124","authenticated-orcid":false,"given":"Renata Perez Vianna","family":"Silva","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry and Orthodontics, School of Dentistry Universidade Federal do Rio de Janeiro\u2010UFRJ  Rio de Janeiro Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5940-2109","authenticated-orcid":false,"given":"Aline Saddock","family":"de S\u00e1\u00a0Silva","sequence":"additional","affiliation":[{"name":"Laboratory for Nuclear Instrumentation Universidade Federal do Rio de Janeiro\u2013UFRJ  Rio de Janeiro Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2917-5934","authenticated-orcid":false,"given":"Mar\u00edlia Fagury Videira","family":"Marceliano\u2010Alves","sequence":"additional","affiliation":[{"name":"Department of Endodontics, Faculty of Dentistry Universidade Igua\u00e7u  Nova Igua\u00e7u Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7250-824X","authenticated-orcid":false,"given":"Ricardo Tadeu","family":"Lopes","sequence":"additional","affiliation":[{"name":"Laboratory for Nuclear Instrumentation Universidade Federal do Rio de Janeiro\u2013UFRJ  Rio de Janeiro Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3718-693X","authenticated-orcid":false,"given":"Laura Guimar\u00e3es","family":"Primo","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry and Orthodontics, School of Dentistry Universidade Federal do Rio de Janeiro\u2010UFRJ  Rio de Janeiro Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6049-0588","authenticated-orcid":false,"given":"Aline de Almeida","family":"Neves","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry and Orthodontics, School of Dentistry Universidade Federal do Rio de Janeiro\u2010UFRJ  Rio de Janeiro Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,11,23]]},"reference":[{"key":"e_1_2_10_2_1","first-page":"399","volume-title":"Pulp Therapy for Primary and Immature Permanent Teeth. 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