OOIR: Observatory of International Research

Papers

(The H4-Index of International Endodontic Journal is 40. 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 2021-09-01 to 2025-09-01.)

Article	Citations
Clinical outcome of guided endodontics versus freehand drilling: Comment	253
Immunomodulatory effect of IL‐1RA in LPS‐activated macrophage/dental pulp stem cells co‐culture	200
Targeting hexokinase 1 alleviates NLRP3‐mediated inflammation in apical periodontitis: A laboratory investigation	172
Lipopolysaccharides and hydrogen peroxide induce contrasting pathological conditions in dental pulpal cells	155
Substance P/calcitonin gene‐related peptide and their receptors expression in human periodontal ligament after root canal preparation with five different systems	124
Activin a regulates vascular formation and stabilization in direct coculture of dental pulp stem cells and endothelial cells	92
The financial and quality of life impact of urgent dental presentations: A cross‐sectional study	92
Inflammatory profile of apical periodontitis exacerbated by cigarette smoke inhalation: Histological and immunohistochemical analysis in rats	88
Precision‐milled simulated curved root canals in bovine dentine for the assessment of chemo‐mechanical root canal preparation	84
Angiogenic and neurogenic potential of dental‐derived stem cells for functional pulp regeneration: A narrative review	79
IWP‐2 modulates the immunomodulatory properties of human dental pulp stem cells in vitro	77
Exploring approaches to pulp vitality assessment: A scoping review of nontraditional methods	77
A critical analysis of research methods and experimental models to study irrigants and irrigation systems	74
Gender diversity in endodontics: Women's representation at recent biennial meetings	66
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	66
The shaping ability of WaveOne Gold, TRUShape and XP‐endo Shaper systems in oval‐shaped distal canals of mandibular molars: A microcomputed tomographic analysis	64
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	64
Top 100 most‐cited scientific articles in regenerative endodontics 2019–2023: A bibliometric analysis	62
Issue Information	60
Response to the letter regarding our article, ‘Potential predisposing features of external cervical resorption: An observational study’ (Patel et al., 2025)	59
The use of electrodermal activity in pulpal diagnosis and dental pain assessment	58
In‐depth investigation of FAM20A insufficiency effects on deciduous dental pulp cells: Altered behaviours, osteogenic differentiation, and inflammatory gene expression	57
Micro‐computed tomographic evaluation of dentinal microcracks in response to progressive taper enlargement in root canals of maxillary molars	56
Selenium ameliorates inflammation by decreasing autophagic flux and mitogen‐activated protein kinase signalling on experimentally induced rat periapical lesions	56
Success rate of orthograde endodontic retreatment after failed apicectomy – A retrospective study	55

Influence of ethylenediaminetetraacetic acid on regenerative endodontics: A systematic review	55
Expression of chronic pain genes in apical periodontitis tissues	54
Volumetric changes in root canal sealers in ex vivo and a novel animal model approach	50
New consultant statistical advisor	49
Influence of dental bleaching on the pulp tissue: A systematic review of in vivo studies	48
Periapical healing following endodontic microsurgery with collagen‐based bone‐filling material: A randomized controlled clinical trial	48
Micro‐CT evaluation of a nanodiamond irrigant for hard‐tissue debris removal during sonic agitation	47
Present status and future directions—Vital pulp treatment and pulp preservation strategies	45
Shaping ability of new reciprocating or rotary instruments with two cross‐sectional designs: An ex vivo study	44
Issue Information	44
Single nucleotide polymorphisms as a predisposing factor for the development of apical periodontitis—An umbrella review	44
Gut microbiota dysbiosis links chronic apical periodontitis to liver fibrosis in nonalcoholic fatty liver disease: Insights from a mouse model	43
Intracanal removal and apical extrusion of filling material after retreatment using rotary or reciprocating instruments: A new approach using human cadavers	42
Issue Information	41
	41