{"id":"https://openalex.org/W6889879673","doi":"https://doi.org/10.30476/dentjods.2024.100813.2250","title":"Comparison of Hand Files, Mtwo, Reciproc, and Gentlefile Rotary Systems Regarding Canal Transportation, Centering Ability, and Obturation Quality of Primary Molars","display_name":"Comparison of Hand Files, Mtwo, Reciproc, and Gentlefile Rotary Systems Regarding Canal Transportation, Centering Ability, and Obturation Quality of Primary Molars","publication_year":2025,"publication_date":"2025-03-01","ids":{"openalex":"https://openalex.org/W6889879673","doi":"https://doi.org/10.30476/dentjods.2024.100813.2250"},"language":"en","primary_location":{"id":"pmh:oai:doaj.org/article:eeefbdbe58ef4a57a2704271ec3f7b34","doi":"https://doi.org/10.30476/dentjods.2024.100813.2250","is_oa":true,"landing_page_url":"https://doaj.org/article/eeefbdbe58ef4a57a2704271ec3f7b34","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of Dentistry, Vol 26, Iss 1, Pp 76-87 (2025)","raw_type":"article"},"volume":null,"type":"article","indexed_in":["doaj"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doaj.org/article/eeefbdbe58ef4a57a2704271ec3f7b34","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5115779184","display_name":"Maryam Kakoienejad","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Maryam Kakoienejad","raw_affiliation_strings":["Dentist, Private Practice, Tehran, Iran"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dentist, Private Practice, Tehran, Iran","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5141393737","display_name":"Mobina Najafifard","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Mobina Najafifard","raw_affiliation_strings":["Dentist, Private Practice, Tehran, Iran"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dentist, Private Practice, Tehran, Iran","institution_ids":[]}]},{"author_position":"middle","author":{"id":null,"display_name":"Sara Tavasoli-Hojati","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I110525433","display_name":"Islamic Azad University, Tehran","ror":"https://ror.org/01kzn7k21","country_code":"IR","type":"education","lineage":["https://openalex.org/I110525433"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Sara Tavasoli-Hojati","raw_affiliation_strings":["Dept. of Pediatric, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Pediatric, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran","institution_ids":["https://openalex.org/I110525433"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077887178","display_name":"Ladan Hafezi","orcid":"https://orcid.org/0000-0002-1727-2665","observed_orcids":["https://orcid.org/0000-0002-1727-2665"]},"institutions":[{"id":"https://openalex.org/I110525433","display_name":"Islamic Azad University, Tehran","ror":"https://ror.org/01kzn7k21","country_code":"IR","type":"education","lineage":["https://openalex.org/I110525433"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Ladan Hafezi","raw_affiliation_strings":["Dept. of Radiology, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Radiology, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran","institution_ids":["https://openalex.org/I110525433"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5076541419","display_name":"Saba Aghaei","orcid":"https://orcid.org/0000-0003-4866-1505","observed_orcids":["https://orcid.org/0000-0003-4866-1505"]},"institutions":[{"id":"https://openalex.org/I110525433","display_name":"Islamic Azad University, Tehran","ror":"https://ror.org/01kzn7k21","country_code":"IR","type":"education","lineage":["https://openalex.org/I110525433"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Saba Aghaei","raw_affiliation_strings":["Dept. of Pediatric, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Pediatric, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran","institution_ids":["https://openalex.org/I110525433"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.44790155,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":true,"primary_topic":{"id":"https://openalex.org/T10536","display_name":"Endodontics and Root Canal Treatments","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3504","display_name":"Oral Surgery"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10536","display_name":"Endodontics and Root Canal Treatments","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3504","display_name":"Oral Surgery"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10113","display_name":"Dental materials and restorations","score":0.0,"subfield":{"id":"https://openalex.org/subfields/3505","display_name":"Orthodontics"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11570","display_name":"Periodontal Regeneration and Treatments","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2748","display_name":"Urology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/primary-molars","display_name":"primary molars","score":0.9020000100135803},{"id":"https://openalex.org/keywords/root-canal-preparation","display_name":"root canal instrumentation","score":0.7990000247955322},{"id":"https://openalex.org/keywords/mtwo","display_name":"Mtwo","score":0.7179999947547913},{"id":"https://openalex.org/keywords/reciproc","display_name":"Reciproc","score":0.9670000076293945},{"id":"https://openalex.org/keywords/hand-files","display_name":"hand files","score":0.9660000205039978},{"id":"https://openalex.org/keywords/canal-transportation","display_name":"canal transportation","score":0.9779999852180481},{"id":"https://openalex.org/keywords/centering-ability","display_name":"centering ability","score":0.9800000190734863},{"id":"https://openalex.org/keywords/root-canal-obturation-quality","display_name":"root canal obturation quality","score":0.859000027179718},{"id":"https://openalex.org/keywords/underfilling","display_name":"underfilling","score":0.6389999985694885},{"id":"https://openalex.org/keywords/canal-deviation","display_name":"canal deviation","score":0.35899999737739563},{"id":"https://openalex.org/keywords/pediatric-endodontics","display_name":"pediatric endodontics","score":0.7300000190734863}],"concepts":[{"id":"https://openalex.org/C2910719800","wikidata":"https://www.wikidata.org/wiki/Q905815","display_name":"Pulpectomy","level":3,"score":0.9215999841690063},{"id":"https://openalex.org/C2779747767","wikidata":"https://www.wikidata.org/wiki/Q848390","display_name":"Root canal","level":2,"score":0.7228999733924866},{"id":"https://openalex.org/C202271784","wikidata":"https://www.wikidata.org/wiki/Q189218","display_name":"Molar","level":2,"score":0.7092000246047974},{"id":"https://openalex.org/C199343813","wikidata":"https://www.wikidata.org/wiki/Q12128","display_name":"Dentistry","level":1,"score":0.5889000296592712},{"id":"https://openalex.org/C29694066","wikidata":"https://www.wikidata.org/wiki/Q118301","display_name":"Orthodontics","level":1,"score":0.5},{"id":"https://openalex.org/C67139541","wikidata":"https://www.wikidata.org/wiki/Q2858200","display_name":"Apex (geometry)","level":2,"score":0.47290000319480896},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4668000042438507},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.46239998936653137},{"id":"https://openalex.org/C2779245719","wikidata":"https://www.wikidata.org/wiki/Q423261","display_name":"Gutta-percha","level":3,"score":0.39169999957084656},{"id":"https://openalex.org/C544519230","wikidata":"https://www.wikidata.org/wiki/Q32566","display_name":"Computed tomography","level":2,"score":0.3434999883174896},{"id":"https://openalex.org/C187954543","wikidata":"https://www.wikidata.org/wiki/Q1501273","display_name":"Hounsfield scale","level":3,"score":0.2971000075340271},{"id":"https://openalex.org/C73753567","wikidata":"https://www.wikidata.org/wiki/Q4348754","display_name":"Mandibular second molar","level":3,"score":0.27900001406669617},{"id":"https://openalex.org/C2779847468","wikidata":"https://www.wikidata.org/wiki/Q852143","display_name":"Endodontics","level":2,"score":0.26109999418258667}],"mesh":[],"locations_count":1,"locations":[{"id":"pmh:oai:doaj.org/article:eeefbdbe58ef4a57a2704271ec3f7b34","doi":"https://doi.org/10.30476/dentjods.2024.100813.2250","is_oa":true,"landing_page_url":"https://doaj.org/article/eeefbdbe58ef4a57a2704271ec3f7b34","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of Dentistry, Vol 26, Iss 1, Pp 76-87 (2025)","raw_type":"article"}],"best_oa_location":{"id":"pmh:oai:doaj.org/article:eeefbdbe58ef4a57a2704271ec3f7b34","doi":"https://doi.org/10.30476/dentjods.2024.100813.2250","is_oa":true,"landing_page_url":"https://doaj.org/article/eeefbdbe58ef4a57a2704271ec3f7b34","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of Dentistry, Vol 26, Iss 1, Pp 76-87 (2025)","raw_type":"article"},"sustainable_development_goals":[{"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3","score":0.6240000128746033}],"sustainable_development_goals_aurora":[{"display_name":"Clean water and sanitation","id":"https://metadata.un.org/sdg/6","score":0.4276743233203888}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Statement":[0],"of":[1,14,48,163],"the":[2,12,20,38,87,108,124,132,134,159,178,190,201,214,217,236,249,291],"Problem:":[3],"Employing":[4],"different":[5,9],"instruments":[6],"may":[7,29],"have":[8],"impact":[10],"on":[11],"outcome":[13],"root":[15,26,58,109,155],"canal":[16,22,27,41,59,135,228],"treatments.":[17],"Deviation":[18],"from":[19,123,131,213,235],"original":[21],"path":[23],"and":[24,45,53,61,89,100,117,121,137,144,165,181,193,242,256,264,271,285,299],"defective":[25],"obturation":[28,46,160,293],"lead":[30],"to":[31,76,106,152,199,278],"pulpectomy":[32],"treatment":[33],"failure.Purpose:":[34],"This":[35],"study":[36],"compared":[37,277],"primary":[39,70],"molar":[40,71],"transportation,":[42],"centering":[43,138,207,287],"ability,":[44],"quality":[47],"hand":[49,90,272,300],"files,":[50],"Mtwo,":[51,269,297],"Reciproc,":[52],"Gentlefile":[54,101,210,223,281],"rotating":[55],"machines":[56],"in":[57,65,142,167,216],"treatments.Materials":[60],"Method:":[62],"In":[63],"this":[64],"vitro":[66],"experimental":[67],"study,":[68],"eighty":[69],"roots":[72],"were":[73,84,104,115,140,173,186,197],"randomly":[74],"assigned":[75],"four":[77,250],"groups.":[78],"Cone-beam":[79],"computed":[80],"tomography":[81],"(CBCT)":[82],"scans":[83,114,172],"provided":[85],"for":[86],"samples,":[88],"files":[91,273],"(group":[92,95,98,102],"1),":[93],"Mtwo":[94,203],"2),":[96],"Reciproc":[97,231,259,289],"3),":[99],"4)":[103],"used":[105,151,198],"instrument":[107],"canals.":[110],"Once":[111],"more,":[112],"CBCT":[113,171],"acquired,":[116],"at":[118,211,232],"1,":[119],"2,":[120],"3mm":[122],"apex":[125,215,237],"as":[126,128],"well":[127],"1":[129],"mm":[130,234],"orifice,":[133],"transportation":[136,229,284],"ability":[139,208],"evaluated":[141],"buccolingual":[143,227],"mesiodistal":[145,218],"directions.":[146],"Zeolite":[147],"(ZOE)":[148],"cement":[149],"was":[150],"obturate":[153],"every":[154,176],"canal.":[156],"To":[157],"evaluate":[158],"density,":[161,294],"number":[162],"voids,":[164],"underfilling":[166],"each":[168],"group,":[169],"new":[170],"obtained.":[174],"For":[175],"tooth,":[177],"maximum,":[179],"minimum,":[180],"average":[182,265],"Hounsfield":[183],"units":[184],"(HU)":[185],"noted.":[187],"One-way":[188],"ANOVA,":[189],"Kruskal-Wallis":[191],"test,":[192],"Tukey's":[194],"HSD":[195],"test":[196],"analyze":[200],"data.Results:":[202],"exhibited":[204],"considerably":[205],"superior":[206],"than":[209,230],"2mm":[212],"direction":[219],"(p":[220],"Value<":[221],"0.05).":[222],"had":[224,260,290],"significantly":[225],"higher":[226,262,283],"3":[233],"(P0.05).":[238],"Minimum":[239],"HU,":[240,266],"underfilling,":[241],"void":[243],"numbers":[244],"did":[245],"not":[246],"differ":[247],"amongst":[248],"groups":[251],"(p=":[252],"0.791,":[253],"p=":[254,257],"0.1,":[255],"0.548).":[258],"substantially":[261],"maximum":[263],"followed":[267,295],"by":[268,296],"Gentlefile,":[270,298],"(p<":[274],"0.05).Conclusion:":[275],"When":[276],"other":[279],"systems,":[280],"showed":[282],"less":[286],"ability.":[288],"highest":[292],"files.":[301]},"counts_by_year":[],"updated_date":"2026-10-13T10:08:12.033832","created_date":"2025-10-10T00:00:00"}