Journal article
Worldwide assessment of the root and root canal characteristics of maxillary premolars – a multi-center CBCT cross-sectional study with meta-analysis
Journal of endodontics, Vol.50(1), pp.31-54
01/2024
DOI: 10.1016/j.joen.2023.10.009
Abstract
This worldwide study examined the root and root canal characteristics of maxillary premolars and explored how demographic factors impact the outcomes.
Observers from 44 countries assessed 26,400 maxillary premolars using cone-beam computed tomography and employed a standardized screening method to gather data on multiple canal morphology and 3-rooted configuration (primary outcomes), as well as secondary outcomes related to root and root canal anatomies. Demographic factors such as ethnicity, sex, and age were collected for each participant. The intra- and inter-observer tests ensured observer reliability. Primary outcomes were represented as odds ratios and untransformed proportions accompanied by 95% confidence interval (CI) forest plots. Meta-analysis compared sub-groups and identified sources of heterogeneity (α=5%).
The overall prevalence of multiple canal morphology in the first premolar was 93.5% (95% CI, 93.3%-94.7%), while in the second premolar, it was 49.7% (95% CI, 44.9%-54.6%). The proportion of 3-rooted configuration was 1.8% (95% CI, 1.4%-2.1%) in the first premolar and 0.4% (95% CI, 0.3%-0.5%) in the second. Asian countries generally displayed fewer roots and root canals, while European nations showed higher counts (P<0.05). Males exhibited higher percentages and odds ratios for both outcomes in both premolars. Younger patients demonstrated lower percentages of multiple root canal morphologies (P<0.05). Factors such as tooth side, voxel size and field-of-view did not influence the outcomes (P>0.05).
The worldwide assessment of root and root canal characteristics of maxillary premolars has revealed a discernible influence of various factors such as tooth type, geographical region, ethnicity, sex, and age.
•26,400 maxillary premolars from 44 countries were analyzed regarding their root and root canal morphologies;•Prevalence of multiple canals was 93.5% for the 1st premolar and 49.7% for the 2nd premolar;•Global percentages of 3-rooted configuration was 1.8% and 0.4% for the 1st and 2nd premolars, respectively;•Asians had the lowest proportions of roots and root canals, while Europeans and Africans had the highest;•Males, older patients and 1st premolars tend to present a higher prevalence of multiple canal morphology;•Tooth position, voxel size, and field-of-view had no influence on the outcomes.
Details
- Title: Subtitle
- Worldwide assessment of the root and root canal characteristics of maxillary premolars – a multi-center CBCT cross-sectional study with meta-analysis
- Creators
- Abhishek Parolia - International Medical University School of Dentistry, Kuala Lumpur, MalaysiaJorge N.R. Martins - University of LisbonPablo Ensinas - Private Practice, Salta, ArgentinaFrancis Chan - University of MelbourneNarin Babayeva - Azerbaijan Medical UniversityMurilo von Zuben - Private Practice, Brussels, BelgiumLuiza Berti - Department of Radiology, Faculdade de Odontologia São Leopoldo Mandic, Campinas, BrazilErnest W.N. Lam - University of TorontoMarcia Antúnez - Diego Portales UniversityFan Pei - Department of Dentistry and Central Laboratory, Ninth People’s Hospital of Suzhou, Soochow University, Suzhou, ChinaCatalina Mendez de la Espriella - Pontificia Universidad JaverianaWalter Vargas - Instituto de Estudios AvanzadosJuan Carlos Izquierdo Camacho - Private Practice, Quito, EcuadorMoataz-Bellah A.M. Alkhawas - Department of Endodontics, Al-Azhar University Faculty of Dental Medicine, Cairo, EgyptTiago Pimentel - King's College LondonFábio Santiago - Private Practice, Paris, FranceHans Willi Herrmann - Private Practice, Bad Kreuznach, GermanyAntonis Chaniotis - Private Practice, Athens, GreeceGergely Benyocs - Private Practice, Budapest, HungaryMagnús F. Ragnarsson - Private Practice, Hafnarfjördur, IcelandJojo Kottoor - Department of Conservative Dentistry and Endodontics, Royal Dental College, Kerala, IndiaAvi Shemesh - Israel Defense Forces Medical CorpsRaffaella Castagnola - SensoSriteja Tummala - School of Dentistry, Faculty of Medical Sciences, The University of the West Indies, Kingston, JamaicaSatoru Matsunaga - Tokyo Dental CollegeArina Maksimova - Private Practice, Bishkek, KyrgyzstanHani Ounsi - Lebanese UniversityRuben Rosas Aguilar - National Autonomus University of Mexico, León, MexicoOlabisi H. Oderinu - University of LagosMuhammad Rizwan Nazeer - Private Practice, Karachi, PakistanCarlos Heilborn - Private Practice, Asunción, ParaguayChristian Nole - Facultad de Medicina, Universidad Nacional Mayor de San Marcos, Lima, PeruSergiu Nicola - Private Practice, Bucharest, RomaniaElena Lipatova - Private Practice, Yekaterinburg, RussiaHussam Alfawaz - King Saud UniversityHussein C. Seedat - Private Practice, Durban, South AfricaSeok Woo Chang - Kyung Hee UniversityJose Antonio Gonzalez - Departamento de Endodoncia y Conservadora, Facultad de Odontología, Universitat Internacional de Catalunya, Barcelona, SpainZaher Altaki - Damascus UniversityDanuchit Banomyong - Mahidol UniversityAli Keles - Bolu Abant İzzet Baysal UniversityIliana Modyeievsky - Private Practice, Montevideo, UruguayAdam Monroe - Private Practice, Vista, USACarlos Boveda - Department of Endodontics, Faculty of Dentistry, Universidad Central de Venezuela, Caracas, VenezuelaEmmanuel J.N.L. Silva - Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, Rio de Janeiro, BrazilMichael Solomonov - Israel Defense Forces Medical CorpsJoe Ben Itzhak - Israel Defense Forces Medical CorpsMarco A. Versiani - Dental Specialty Center, Brazilian Military Police, Minas Gerais, BrazilWorldwide Anatomy Research Group
- Resource Type
- Journal article
- Publication Details
- Journal of endodontics, Vol.50(1), pp.31-54
- Publisher
- Elsevier Inc
- DOI
- 10.1016/j.joen.2023.10.009
- ISSN
- 0099-2399
- eISSN
- 1878-3554
- Language
- English
- Electronic publication date
- 10/26/2023
- Date published
- 01/2024
- Academic Unit
- Endodontics
- Record Identifier
- 9984505159302771
Metrics
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