OOIR: Observatory of International Research

Papers

(The H4-Index of International Endodontic Journal is 38. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-05-01 to 2025-05-01.)

Article	Citations
Effect of kinematics on the torque/force generation, surface characteristics, and shaping ability of a nickel‐titanium rotary glide path instrument: An ex vivo study	241
Exploring approaches to pulp vitality assessment: A scoping review of nontraditional methods	215
IWP‐2 modulates the immunomodulatory properties of human dental pulp stem cells in vitro	167
Lipopolysaccharides and hydrogen peroxide induce contrasting pathological conditions in dental pulpal cells	140
Clinical outcome of guided endodontics versus freehand drilling: Comment	117
The shaping ability of WaveOne Gold, TRUShape and XP‐endo Shaper systems in oval‐shaped distal canals of mandibular molars: A microcomputed tomographic analysis	94
Gender diversity in endodontics: Women's representation at recent biennial meetings	75
Substance P/calcitonin gene‐related peptide and their receptors expression in human periodontal ligament after root canal preparation with five different systems	74
Precision‐milled simulated curved root canals in bovine dentine for the assessment of chemo‐mechanical root canal preparation	73
Top 100 most‐cited scientific articles in regenerative endodontics 2019–2023: A bibliometric analysis	70
Activin a regulates vascular formation and stabilization in direct coculture of dental pulp stem cells and endothelial cells	70
The financial and quality of life impact of urgent dental presentations: A cross‐sectional study	65
Five decades of the International Endodontic Journal: Bibliometric overview 1967–2020	60
Immunomodulatory effect of IL‐1RA in LPS‐activated macrophage/dental pulp stem cells co‐culture	60
Targeting hexokinase 1 alleviates NLRP3‐mediated inflammation in apical periodontitis: A laboratory investigation	59
Inflammatory profile of apical periodontitis exacerbated by cigarette smoke inhalation: Histological and immunohistochemical analysis in rats	59
Angiogenic and neurogenic potential of dental‐derived stem cells for functional pulp regeneration: A narrative review	56
Outcome measures to assess the effectiveness of endodontic treatment for pulpitis and apical periodontitis for use in the development of European Society of Endodontology S3‐level clinical practice gu	55
A critical analysis of research methods and experimental models to study irrigants and irrigation systems	55
Issue Information	54
Micro‐CT evaluation of a nanodiamond irrigant for hard‐tissue debris removal during sonic agitation	52
Influence of ethylenediaminetetraacetic acid on regenerative endodontics: A systematic review	49
Response to the letter regarding our article, ‘Potential predisposing features of external cervical resorption: An observational study’ (Patel et al., 2025)	49
New consultant statistical advisor	49
Present status and future directions—Vital pulp treatment and pulp preservation strategies	48

The impact of an enhanced infection control protocol on molar root canal treatment outcome – a randomized clinical trial	48
Expression of chronic pain genes in apical periodontitis tissues	47
Micro‐computed tomographic evaluation of dentinal microcracks in response to progressive taper enlargement in root canals of maxillary molars	45
In‐depth investigation of FAM20A insufficiency effects on deciduous dental pulp cells: Altered behaviours, osteogenic differentiation, and inflammatory gene expression	45
Periapical healing following endodontic microsurgery with collagen‐based bone‐filling material: A randomized controlled clinical trial	44
Selenium ameliorates inflammation by decreasing autophagic flux and mitogen‐activated protein kinase signalling on experimentally induced rat periapical lesions	44
The use of electrodermal activity in pulpal diagnosis and dental pain assessment	42
Success rate of orthograde endodontic retreatment after failed apicectomy – A retrospective study	41
Volumetric changes in root canal sealers in ex vivo and a novel animal model approach	41
Influence of dental bleaching on the pulp tissue: A systematic review of in vivo studies	40
Cost‐effectiveness analysis of full versus selective root canal retreatment	39
Issue Information	39
Global cone‐beam computed tomography adoption, usage and scan interpretation preferences of dentists and endodontists	38
Single nucleotide polymorphisms as a predisposing factor for the development of apical periodontitis—An umbrella review	38
Elevated serum hepatic transaminases in apical periodontitis individuals	38