{"id":"https://openalex.org/W4283833232","doi":"https://doi.org/10.1136/bmjmilitary-2021-002042","title":"Eight-year retrospective study investigating tooth survival after primary non-surgical root canal treatment in a UK military cohort","display_name":"Eight-year retrospective study investigating tooth survival after primary non-surgical root canal treatment in a UK military cohort","publication_year":2022,"publication_date":"2022-07-04","ids":{"openalex":"https://openalex.org/W4283833232","doi":"https://doi.org/10.1136/bmjmilitary-2021-002042","pmid":"https://pubmed.ncbi.nlm.nih.gov/35788109"},"language":"en","primary_location":{"id":"doi:10.1136/bmjmilitary-2021-002042","doi":"https://doi.org/10.1136/bmjmilitary-2021-002042","is_oa":false,"landing_page_url":"https://doi.org/10.1136/bmjmilitary-2021-002042","pdf_url":null,"source":{"id":"https://openalex.org/S4210236759","display_name":"BMJ Military Health","issn_l":"2633-3767","issn":["2633-3767","2633-3775"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-20","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319945","host_organization_name":"BMJ","host_organization_lineage":["https://openalex.org/P4310319945"],"host_organization_lineage_names":["BMJ"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMJ Military Health","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5034780829","display_name":"Richard Blake Smith","orcid":"https://orcid.org/0000-0002-4854-6497","observed_orcids":["https://orcid.org/0000-0002-4854-6497"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Richard Blake Smith","raw_affiliation_strings":["Dental Centre Colchester, Defence Primary Healthcare, Colchester, UK","Defence Primary Healthcare","Dental Centre Colchester"],"raw_orcid":"https://orcid.org/0000-0002-4854-6497","affiliations":[{"raw_affiliation_string":"Dental Centre Colchester, Defence Primary Healthcare, Colchester, UK","institution_ids":[]},{"raw_affiliation_string":"Defence Primary Healthcare","institution_ids":[]},{"raw_affiliation_string":"Dental Centre Colchester","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060431146","display_name":"Graeme Bryce","orcid":"https://orcid.org/0000-0003-0994-7412","observed_orcids":["https://orcid.org/0000-0003-0994-7412"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"G E Bryce","raw_affiliation_strings":["DCRD, Aldershot Garrison, Aldershot, UK","Aldershot Garrison"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"DCRD, Aldershot Garrison, Aldershot, UK","institution_ids":[]},{"raw_affiliation_string":"Aldershot Garrison","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018319446","display_name":"Y.\u2010L. Ng","orcid":"https://orcid.org/0000-0003-3712-8836","observed_orcids":["https://orcid.org/0000-0003-3712-8836"]},"institutions":[{"id":"https://openalex.org/I4210157535","display_name":"Eastman Dental Hospital","ror":"https://ror.org/055jskg35","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1340918713","https://openalex.org/I4210157535"]},{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Y Ng","raw_affiliation_strings":["Endodontology, University College London, London, UK","Restorative Dentistry and Endodontology, UCL Eastman Dental Institute, London, UK","Endodontology","Restorative Dentistry and Endodontology","UCL Eastman Dental Institute","University College London"],"raw_orcid":"https://orcid.org/0000-0003-3712-8836","affiliations":[{"raw_affiliation_string":"Endodontology, University College London, London, UK","institution_ids":["https://openalex.org/I45129253"]},{"raw_affiliation_string":"Restorative Dentistry and Endodontology, UCL Eastman Dental Institute, London, UK","institution_ids":["https://openalex.org/I4210157535","https://openalex.org/I45129253"]},{"raw_affiliation_string":"Endodontology","institution_ids":[]},{"raw_affiliation_string":"Restorative Dentistry and Endodontology","institution_ids":[]},{"raw_affiliation_string":"UCL Eastman Dental Institute","institution_ids":["https://openalex.org/I4210157535","https://openalex.org/I45129253"]},{"raw_affiliation_string":"University College London","institution_ids":["https://openalex.org/I45129253"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085777724","display_name":"Kishor Gulabivala","orcid":"https://orcid.org/0000-0002-2384-608X","observed_orcids":["https://orcid.org/0000-0002-2384-608X"]},"institutions":[{"id":"https://openalex.org/I4210157535","display_name":"Eastman Dental Hospital","ror":"https://ror.org/055jskg35","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1340918713","https://openalex.org/I4210157535"]},{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"K Gulabivala","raw_affiliation_strings":["Restorative Dentistry and Endodontology, UCL Eastman Dental Institute, London, UK","Restorative Dentistry and Endodontology","UCL Eastman Dental Institute"],"raw_orcid":"https://orcid.org/0000-0002-2384-608X","affiliations":[{"raw_affiliation_string":"Restorative Dentistry and Endodontology, UCL Eastman Dental Institute, London, UK","institution_ids":["https://openalex.org/I4210157535","https://openalex.org/I45129253"]},{"raw_affiliation_string":"Restorative Dentistry and Endodontology","institution_ids":[]},{"raw_affiliation_string":"UCL Eastman Dental Institute","institution_ids":["https://openalex.org/I4210157535","https://openalex.org/I45129253"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5068071108","display_name":"Mark Andrew Dermont","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M A Dermont","raw_affiliation_strings":["Defence Public Health Unit, Defence Medical Services, Lichfield, UK","Defence Medical Services","Defence Public Health Unit"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Defence Public Health Unit, Defence Medical Services, Lichfield, UK","institution_ids":[]},{"raw_affiliation_string":"Defence Medical Services","institution_ids":[]},{"raw_affiliation_string":"Defence Public Health Unit","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5034780829"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4626,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.55902799,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"170","issue":"2","first_page":"107","last_page":"111"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10536","display_name":"Endodontics and Root Canal Treatments","score":0.9994999766349792,"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":0.9994999766349792,"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":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/3500","display_name":"General Dentistry"},"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/3506","display_name":"Periodontics"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/tooth-survival","display_name":"tooth survival","score":0.8460000157356262},{"id":"https://openalex.org/keywords/non-surgical-root-canal-treatment","display_name":"non-surgical root canal treatment","score":0.8899999856948853},{"id":"https://openalex.org/keywords/tooth-loss","display_name":"tooth loss","score":0.8679999709129333},{"id":"https://openalex.org/keywords/military-patients","display_name":"military patients","score":0.6779999732971191},{"id":"https://openalex.org/keywords/predictive-factors","display_name":"predictive factors","score":0.6669999957084656},{"id":"https://openalex.org/keywords/preoperative-pain","display_name":"preoperative pain","score":0.9440000057220459},{"id":"https://openalex.org/keywords/proximal-contact","display_name":"proximal contact","score":0.8460000157356262},{"id":"https://openalex.org/keywords/dental-cores","display_name":"dental cores","score":0.8009999990463257},{"id":"https://openalex.org/keywords/endodontic-treatment-outcomes","display_name":"endodontic treatment outcomes","score":0.6660000085830688}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.8433195948600769},{"id":"https://openalex.org/C168563851","wikidata":"https://www.wikidata.org/wiki/Q1436668","display_name":"Randomized controlled trial","level":2,"score":0.7416577339172363},{"id":"https://openalex.org/C199343813","wikidata":"https://www.wikidata.org/wiki/Q12128","display_name":"Dentistry","level":1,"score":0.6791076064109802},{"id":"https://openalex.org/C2779747767","wikidata":"https://www.wikidata.org/wiki/Q848390","display_name":"Root canal","level":2,"score":0.6745213270187378},{"id":"https://openalex.org/C167135981","wikidata":"https://www.wikidata.org/wiki/Q2146302","display_name":"Retrospective cohort study","level":2,"score":0.5857101082801819},{"id":"https://openalex.org/C72563966","wikidata":"https://www.wikidata.org/wiki/Q1303415","display_name":"Cohort","level":2,"score":0.516676664352417},{"id":"https://openalex.org/C50382708","wikidata":"https://www.wikidata.org/wiki/Q223218","display_name":"Proportional hazards model","level":2,"score":0.47150200605392456},{"id":"https://openalex.org/C2778401919","wikidata":"https://www.wikidata.org/wiki/Q7824270","display_name":"Tooth loss","level":3,"score":0.45795902609825134},{"id":"https://openalex.org/C201903717","wikidata":"https://www.wikidata.org/wiki/Q1778788","display_name":"Cohort study","level":2,"score":0.44497597217559814},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.2136096954345703},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.16102513670921326},{"id":"https://openalex.org/C2992672162","wikidata":"https://www.wikidata.org/wiki/Q12128","display_name":"Oral health","level":2,"score":0.08088144659996033}],"mesh":[{"descriptor_ui":"D003786","descriptor_name":"Dental Pulp Cavity","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006113","descriptor_name":"United Kingdom","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008889","descriptor_name":"Military Personnel","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D010146","descriptor_name":"Pain","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012189","descriptor_name":"Retrospective Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016388","descriptor_name":"Tooth Loss","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":4,"locations":[{"id":"doi:10.1136/bmjmilitary-2021-002042","doi":"https://doi.org/10.1136/bmjmilitary-2021-002042","is_oa":false,"landing_page_url":"https://doi.org/10.1136/bmjmilitary-2021-002042","pdf_url":null,"source":{"id":"https://openalex.org/S4210236759","display_name":"BMJ Military Health","issn_l":"2633-3767","issn":["2633-3767","2633-3775"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-20","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319945","host_organization_name":"BMJ","host_organization_lineage":["https://openalex.org/P4310319945"],"host_organization_lineage_names":["BMJ"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMJ Military Health","raw_type":"journal-article"},{"id":"pmid:35788109","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/35788109","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMJ military health","raw_type":"Journal Article"},{"id":"pmh:oai:eprints.ucl.ac.uk.OAI2:10148884","doi":null,"is_oa":false,"landing_page_url":"https://discovery.ucl.ac.uk/id/eprint/10148884/","pdf_url":null,"source":{"id":"https://openalex.org/S4306400024","display_name":"UCL Discovery (University College London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I45129253","host_organization_name":"University College London","host_organization_lineage":["https://openalex.org/I45129253"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"BMJ Military Health (2022) (In press).","raw_type":"Article"},{"id":"pmh:oai:open-archive.highwire.org:jramc:170/2/107","doi":null,"is_oa":false,"landing_page_url":"http://militaryhealth.bmj.com/cgi/content/short/170/2/107","pdf_url":null,"source":{"id":"https://openalex.org/S4406923041","display_name":"HighWire Press Open Archive","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"TEXT"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","score":1.0,"id":"https://metadata.un.org/sdg/3"}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W1877918518","https://openalex.org/W1939160658","https://openalex.org/W1965414641","https://openalex.org/W1995867241","https://openalex.org/W1998359145","https://openalex.org/W2007885183","https://openalex.org/W2022690824","https://openalex.org/W2023242775","https://openalex.org/W2032146777","https://openalex.org/W2032459468","https://openalex.org/W2032550264","https://openalex.org/W2037736411","https://openalex.org/W2116603096","https://openalex.org/W2126445978","https://openalex.org/W2140757279","https://openalex.org/W2155431325","https://openalex.org/W2169855755","https://openalex.org/W2223231556","https://openalex.org/W2337813691","https://openalex.org/W2520262365","https://openalex.org/W2772783905","https://openalex.org/W2906180418","https://openalex.org/W2945399410"],"related_works":["https://openalex.org/W6999928089","https://openalex.org/W2126445978","https://openalex.org/W2010653006","https://openalex.org/W2169855755","https://openalex.org/W4317738588","https://openalex.org/W4400209099","https://openalex.org/W2061253809","https://openalex.org/W7154993872","https://openalex.org/W2081555274","https://openalex.org/W3081605055"],"abstract_inverted_index":{"Introduction":[0],"Root":[1],"canal":[2],"treatment":[3],"(RCT)":[4],"plays":[5],"an":[6,47,70],"important":[7],"role":[8],"in":[9,30,46,60,84],"preserving":[10],"the":[11,31,41,121,128,131,151,231,236,267],"dentition":[12],"by":[13],"deferring":[14],"other":[15],"invasive":[16],"treatments.":[17],"Data":[18],"on":[19],"tooth":[20,26,58,111,148,194,255,270],"survival":[21,107,166],"and":[22,52,102,118,145,182,221,257],"predictive":[23,55,156,188],"factors":[24,56,157,189],"for":[25,57,75],"loss":[27,59,149,195],"after":[28,50,171,175,179,184],"RCT":[29,51,81,97,168],"military":[32,63,76],"cohort":[33],"are":[34],"lacking.":[35],"This":[36],"investigation":[37],"aimed":[38],"to":[39,192,264],"determine":[40],"proportion":[42],"of":[43,69,88,114,123,130,137,233,238,259,269],"teeth":[44,202,211,241],"surviving":[45],"8-year":[48],"period":[49,134],"identify":[53],"potential":[54],"a":[61,85],"UK":[62],"cohort.":[64],"Methodology":[65],"A":[66],"retrospective":[67],"review":[68],"integrated":[71],"electronic":[72],"health":[73],"record":[74],"patients":[77,90],"who":[78,94],"had":[79,95],"received":[80,96],"was":[82,108,140,169],"performed":[83],"random":[86],"sample":[87],"205":[89],"(n=219":[91],"root-filled":[92],"teeth)":[93],"between":[98],"1":[99,103],"January":[100,104],"2011":[101],"2012.":[105],"Tooth":[106,165],"defined":[109],"as":[110,196],"presence,":[112],"regardless":[113],"signs":[115],"or":[116,135,248],"symptoms,":[117],"measured":[119],"from":[120],"point":[122],"root":[124],"filling":[125],"until":[126],"either":[127],"end":[129],"designated":[132],"study":[133],"time":[136],"extraction.":[138],"Survival":[139],"evaluated":[141],"using":[142,150,160],"Kaplan-Meier":[143],"estimates":[144],"association":[146],"with":[147,203,212,242,249],"\u03c72":[152],"test.":[153],"Potentially":[154],"significant":[155],"were":[158,190,262],"investigated":[159],"univariate":[161],"Cox":[162],"regression.":[163],"Results":[164],"following":[167],"98%":[170],"24":[172],"months;":[173,177,181],"88%":[174],"48":[176],"83%":[178],"72":[180],"78%":[183],"96":[185],"months.":[186],"Four":[187],"found":[191,263],"affect":[193],"follows:":[197],"preoperative":[198,239],"pain":[199],"(HR=3.2;":[200],"p<0.001),":[201],"less":[204,243],"than":[205,216,244,253],"two":[206,217,245,254],"proximal":[207,246],"contacts":[208,247],"(HR=3.0;":[209],"p=0.01),":[210],"cores":[213,250],"involving":[214,251],"more":[215,252],"surfaces":[218],"(HR=2.0;":[219],"p=0.03)":[220],"postoperative":[222,260],"unscheduled":[223],"dental":[224],"attendances":[225],"(UDA)":[226],"(HR=2.7;":[227],"p=0.01).":[228],"Conclusions":[229],"Within":[230],"limitations":[232],"this":[234],"study,":[235],"presence":[237],"pain;":[240],"surfaces;":[256],"occurrence":[258],"UDA":[261],"significantly":[265],"increase":[266],"hazard":[268],"loss.":[271]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2022-07-07T00:00:00"}
