Gunnar Hasselgren

3.2k total citations · 1 hit paper
75 papers, 2.4k citations indexed

About

Gunnar Hasselgren is a scholar working on Oral Surgery, Molecular Biology and Gastroenterology. According to data from OpenAlex, Gunnar Hasselgren has authored 75 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Oral Surgery, 15 papers in Molecular Biology and 11 papers in Gastroenterology. Recurrent topics in Gunnar Hasselgren's work include Endodontics and Root Canal Treatments (28 papers), Dental Radiography and Imaging (19 papers) and dental development and anomalies (9 papers). Gunnar Hasselgren is often cited by papers focused on Endodontics and Root Canal Treatments (28 papers), Dental Radiography and Imaging (19 papers) and dental development and anomalies (9 papers). Gunnar Hasselgren collaborates with scholars based in Sweden, United States and United Kingdom. Gunnar Hasselgren's co-authors include Leif Tronstad, L Kristerson, Jens Ove Andreasen, Steven I. Gold, Mohammed Hassan‐Alin, Tommy Andersson, Alf Wennberg, Matthias Zehnder, Lars Weidolf and Lars Hammarström and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and Environmental Health Perspectives.

In The Last Decade

Gunnar Hasselgren

74 papers receiving 2.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

pH changes in dental tissues after root canal filling with calcium hydroxide

1981 422 citations Leif Tronstad, Gunnar Hasselgren et al. Journal of Endodontics profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Gunnar Hasselgren Sweden	27	1.3k	598	513	388	343	75	2.4k
Fatma Çağlayan Türkiye	21	408 0.3×	333 0.6×	31 0.1×	44 0.1×	139 0.4×	77	1.1k
Praveen Sharma United Kingdom	22	361 0.3×	474 0.8×	10 0.0×	43 0.1×	162 0.5×	69	2.5k
James Guggenheimer United States	20	197 0.1×	327 0.5×	11 0.0×	29 0.1×	48 0.1×	48	2.2k
Sharron Rich United States	15	69 0.1×	236 0.4×	29 0.1×	16 0.0×	36 0.1×	19	1.3k
Xiaofei Zhu China	19	536 0.4×	202 0.3×		253 0.7×	143 0.4×	35	1.4k
Cesare Saltini Italy	28	51 0.0×	205 0.3×	15 0.0×	49 0.1×	9 0.0×	52	2.8k
Ankur Sethi United States	22	333 0.3×	612 1.0×	9 0.0×	11 0.0×	94 0.3×	89	1.4k
Steven J. Thomas United Kingdom	26	58 0.0×	487 0.8×	9 0.0×	38 0.1×	12 0.0×	61	1.8k
Joan Otomo‐Corgel United States	13	406 0.3×	60 0.1×	4 0.0×	18 0.0×	46 0.1×	21	1.6k
Shishir Shetty India	21	397 0.3×	182 0.3×		35 0.1×	211 0.6×	190	1.3k

Countries citing papers authored by Gunnar Hasselgren

Since Specialization

Citations

This map shows the geographic impact of Gunnar Hasselgren's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Gunnar Hasselgren with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gunnar Hasselgren more than expected).

Fields of papers citing papers by Gunnar Hasselgren

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gunnar Hasselgren. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Gunnar Hasselgren. The network helps show where Gunnar Hasselgren may publish in the future.

Co-authorship network of co-authors of Gunnar Hasselgren

This figure shows the co-authorship network connecting the top 25 collaborators of Gunnar Hasselgren. A scholar is included among the top collaborators of Gunnar Hasselgren based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Gunnar Hasselgren. Gunnar Hasselgren is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Hasselgren, Gunnar. (2023). Collaboration Over Borders. SHILAP Revista de lepidopterología. 14(2). 43–44. 1 indexed citations

Hasselgren, Gunnar, et al.. (2021). Nonclinical research areas of future importance for clinical therapies: Exploring the concepts of nonlinearity in dentistry. Journal of Conservative Dentistry. 24(1). 10–10. 2 indexed citations

Chen, Chang-Kai, Gunnar Hasselgren, Neill Serman, et al.. (2007). Prevalence and Quality of Endodontic Treatment in the Northern Manhattan Elderly. Journal of Endodontics. 33(3). 230–234. 41 indexed citations

Jha, A. K., et al.. (2006). Inability of laser and rotary instrumentation to eliminate root canal infection. The Journal of the American Dental Association. 137(1). 67–70. 21 indexed citations

Dítě, Petr, et al.. (2003). Detection of GAD-Ab index in diabetic patients using 35S labeled recombinant human GAD65 antigen. 23(2). 82–86. 4 indexed citations

Gupta, Rakesh & Gunnar Hasselgren. (2003). Prevalence of Odontogenic Sinus Tracts in Patients Referred for Endodontic Therapy. Journal of Endodontics. 29(12). 798–800. 37 indexed citations

Hasselgren, Gunnar, et al.. (2002). Short and long term course of elderly patients with peptic ulcer bleeding-analysis of factors influencing fatal outcome. The European Journal of Surgery. 164(9). 685–691. 9 indexed citations

Factor‐Litvak, Pam, Gunnar Hasselgren, Diane M. Jacobs, et al.. (2002). Mercury derived from dental amalgams and neuropsychologic function.. Environmental Health Perspectives. 111(5). 719–723. 63 indexed citations

Zehnder, Matthias, Steven I. Gold, & Gunnar Hasselgren. (2002). Pathologic interactions in pulpal and periodontal tissues. Journal Of Clinical Periodontology. 29(8). 663–671. 101 indexed citations

10.

Andersson, Tommy, et al.. (2001). Pharmacokinetic Studies with Esomeprazole, the (S)-Isomer of Omeprazole. Clinical Pharmacokinetics. 40(6). 411–426. 196 indexed citations

11.

Hasselgren, Gunnar, et al.. (2001). Pharmacokinetic Study of Esomeprazole in the Elderly. Clinical Pharmacokinetics. 40(2). 145–150. 30 indexed citations

12.

Pagonis, Tom C, et al.. (2000). Retreatment Decisions—A Comparison Between General Practitioners and Endodontic Postgraduates. Journal of Endodontics. 26(4). 240–241. 26 indexed citations

13.

Zanten, Sander Veldhuyzen van, K. Lauritsen, J C Delchier, et al.. (2000). One‐week triple therapy with esomeprazole provides effective eradication of Helicobacter pylori in duodenal ulcer disease. Alimentary Pharmacology & Therapeutics. 14(12). 1605–1611. 52 indexed citations

14.

Muckadell, Ove B. Schaffalitzky de, Troels Havelund, Henrik Harling, et al.. (1997). Effect of Omeprazole on the Outcome of Endoscopically Treated Bleeding Peptic Ulcers Randomized Double-Blind Placebo-Controlled Multicentre Study. Scandinavian Journal of Gastroenterology. 32(4). 320–327. 127 indexed citations

15.

Hasselgren, Gunnar, Tore Lind, Lars Lundell, et al.. (1997). Continuous Intravenous Infusion of Omeprazole in Elderly Patients with Peptic Ulcer Bleeding Results of a Placebo-Controlled Multicenter Study. Scandinavian Journal of Gastroenterology. 32(4). 328–333. 112 indexed citations

16.

Lind, Tore, E. Aadland, S. Eriksson, et al.. (1995). Beneficial effects of I.V. omeprazole (OME) in patients with peptic ulcer bleeding (PUB). Gastroenterology. 108(4). A150–A150. 14 indexed citations

17.

Gold, Steven I. & Gunnar Hasselgren. (1992). Peripheral inflammatory root resorption. Journal Of Clinical Periodontology. 19(8). 523–534. 88 indexed citations

18.

Serman, Neill & Gunnar Hasselgren. (1992). The radiographic incidence of multiple roots and canals in human mandibular premolars. International Endodontic Journal. 25(5). 234–237. 37 indexed citations

19.

Skoglund, Annika & Gunnar Hasselgren. (1992). Tissue changes in immature dog teeth autotransplanted to surgically prepared sockets. Oral Surgery Oral Medicine Oral Pathology. 74(6). 789–795. 13 indexed citations

20.

Hasselgren, Gunnar, et al.. (1976). Morphologic and enzyme histochemical observations on the pulp of human primary molars 3 to 5 years after formocresol treatment. Oral Surgery Oral Medicine Oral Pathology. 42(4). 518–528. 40 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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