OOIR: Observatory of International Research

Papers

(The H4-Index of International Endodontic Journal is 39. 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 2021-06-01 to 2025-06-01.)

Article	Citations
Clinical outcome of guided endodontics versus freehand drilling: Comment	250
Gender diversity in endodontics: Women's representation at recent biennial meetings	226
Activin a regulates vascular formation and stabilization in direct coculture of dental pulp stem cells and endothelial cells	178
The financial and quality of life impact of urgent dental presentations: A cross‐sectional study	146
Angiogenic and neurogenic potential of dental‐derived stem cells for functional pulp regeneration: A narrative review	123
Targeting hexokinase 1 alleviates NLRP3‐mediated inflammation in apical periodontitis: A laboratory investigation	105
Precision‐milled simulated curved root canals in bovine dentine for the assessment of chemo‐mechanical root canal preparation	78
Substance P/calcitonin gene‐related peptide and their receptors expression in human periodontal ligament after root canal preparation with five different systems	78
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	76
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	72
The shaping ability of WaveOne Gold, TRUShape and XP‐endo Shaper systems in oval‐shaped distal canals of mandibular molars: A microcomputed tomographic analysis	71
Lipopolysaccharides and hydrogen peroxide induce contrasting pathological conditions in dental pulpal cells	71
Five decades of the International Endodontic Journal: Bibliometric overview 1967–2020	69
Immunomodulatory effect of IL‐1RA in LPS‐activated macrophage/dental pulp stem cells co‐culture	63
Inflammatory profile of apical periodontitis exacerbated by cigarette smoke inhalation: Histological and immunohistochemical analysis in rats	61
Exploring approaches to pulp vitality assessment: A scoping review of nontraditional methods	61
IWP‐2 modulates the immunomodulatory properties of human dental pulp stem cells in vitro	60
A critical analysis of research methods and experimental models to study irrigants and irrigation systems	59
Top 100 most‐cited scientific articles in regenerative endodontics 2019–2023: A bibliometric analysis	58
Issue Information	56
Micro‐CT evaluation of a nanodiamond irrigant for hard‐tissue debris removal during sonic agitation	53
Micro‐computed tomographic evaluation of dentinal microcracks in response to progressive taper enlargement in root canals of maxillary molars	52
Response to the letter regarding our article, ‘Potential predisposing features of external cervical resorption: An observational study’ (Patel et al., 2025)	52
Influence of ethylenediaminetetraacetic acid on regenerative endodontics: A systematic review	51
The use of electrodermal activity in pulpal diagnosis and dental pain assessment	49

Selenium ameliorates inflammation by decreasing autophagic flux and mitogen‐activated protein kinase signalling on experimentally induced rat periapical lesions	49
Volumetric changes in root canal sealers in ex vivo and a novel animal model approach	48
Expression of chronic pain genes in apical periodontitis tissues	48
Success rate of orthograde endodontic retreatment after failed apicectomy – A retrospective study	48
In‐depth investigation of FAM20A insufficiency effects on deciduous dental pulp cells: Altered behaviours, osteogenic differentiation, and inflammatory gene expression	46
New consultant statistical advisor	46
Periapical healing following endodontic microsurgery with collagen‐based bone‐filling material: A randomized controlled clinical trial	45
Influence of dental bleaching on the pulp tissue: A systematic review of in vivo studies	43
Present status and future directions—Vital pulp treatment and pulp preservation strategies	42
Dental pulp lymphatic vessel dynamics during tooth development and pulp stimulation in rodents	40
Issue Information	40
The impact of an enhanced infection control protocol on molar root canal treatment outcome – a randomized clinical trial	40
Efficacy of imaging techniques for the diagnosis of apical periodontitis: A systematic review	40
Elevated serum hepatic transaminases in apical periodontitis individuals	39
Cost‐effectiveness analysis of full versus selective root canal retreatment	39