Category: dentistry

‘Misconduct on a grand and terrible scale’: Dental scientist up to 26 retractions

Jose Luis Calvo-Guirado

A dentistry researcher in Spain with a history of reusing and manipulating images has notched two more retractions, giving him 26. 

The new retractions move Jose´ Luis Calvo-Guirado, of Universidad Católica San Antonio de Murcia, into a tie for 24th place on the Retraction Watch leaderboard. 

Calvo-Guirado has in the past disputed the retractions of his research. And at least one of his co-authors, Georgios Romanos, of the State University of New York Stony Brook School of Dental Medicine, speculated that Calvo-Guirado was reusing images to limit the number of lab animals that would need to be sacrificed in his studies.

The latest retractions involve two papers in Annals of Anatomy, an Elsevier publication, including the 2018 article “A new procedure for processing extracted teeth for immediate grafting in post-extraction sockets. An experimental study in American Fox Hound dogs.” According to the notice, the paper contained manipulated images that were reused in subsequently retracted articles:  

Continue reading ‘Misconduct on a grand and terrible scale’: Dental scientist up to 26 retractions

Dental researcher in Spain up to 18 retractions

Jose Luis Calvo-Guirado

A researcher in Spain who studies dental implants has had another six papers retracted, for a total of 18.

José Luis Calvo-Guirado‘s latest retraction, which along with the other 17 appeared in Clinical Oral Implants Research, a Wiley title, was for “image discrepancies resulting in unreliable data.” Three appeared in June, and two in July, also for image issues. The researcher also has at least two corrections; one  in Annals of Anatomy — Anatomischer Anzeiger and one in Materials. Continue reading Dental researcher in Spain up to 18 retractions

Dental journal pulls a dozen papers for recycled images and “unreliable data”

A leading orthodontics journal has retracted 12 papers after determining that they contained either reused images, questionable data or both. Several of the articles involved experiments conducted in dogs — and one person familiar with the case told us that the duplication was an attempt to avoid sacrificing more animals than necessary for the research.  

Although the list of authors on the articles varies, the common denominator is Jose Luis Calvo-Guirado, of the UCAM Universidad Católica San Antonio de Murcia, in Spain. Calvo-Guirado’s title at the institution is director de la Cátedra Internacional de Investigación en Odontología, which Google translates as director of the International Research Chair in Dentistry.  Calvo-Guirado also holds (or has held) a research professorship at SUNY Stony Brook in the Department of Prosthodontics and Digital Medicine, according to his CV.

Calvo-Guirado’s name is on at least 187 entries in PubMed. Of those, 40 appeared in Clinical Oral Implants Research, a Wiley title on whose editorial board the researcher served, according to his CV.  

Continue reading Dental journal pulls a dozen papers for recycled images and “unreliable data”

Romanian journal bans author following 4 retractions

Romanian Journal of Internal MedicineA medical journal in Romania has issued a lifetime ban for a researcher after retracting four of his papers.

Since April, the Romanian Journal of Internal Medicine (RJIM) retracted nine papers (eight for plagiarism, one for duplication); four of these were co-authored by Manole Cojocaru, a researcher at the Titu Maiorescu University (TMU) in Bucharest, Romania. Subsequently, the journal has banned Cojocaru from submitting manuscripts, and has also informed the ethics committee at his institution.

Here’s the retraction notice, which is the same for six of the papers: Continue reading Romanian journal bans author following 4 retractions

Dental paper pulled for “wrong content with serious consequences”

Clinical Oral InvestigationsAn article on how missing teeth affect chewing was — well, pulled — when someone noticed a few errors. The journal later published a corrected version.

The retraction for “Chewing ability in an adult Chinese population” appeared in Clinical Oral Investigations in 2012, but we’re sharing it with you now because the notice contains some remarkable language:

This article has been withdrawn due to wrong content with serious consequences such as danger to people’s health.

Last author Nico H.J. Creugers, who works at Radboud University Medical Center in the Netherlands, told us: 

Continue reading Dental paper pulled for “wrong content with serious consequences”

Peer reviewer stole text for her own dentistry paper, says journal investigation

Journal of Conservative DentistryFollowing a “thorough investigation,” the Journal of Conservative Dentistry (JCD) has retracted a paper after concluding that the first author stole the text from another paper when peer reviewing it for a different journal. 

The JCD decided that the 2013 paper about white spot lesions and inhibiting the growth of the bacteria Streptococcus mutans in the mouth is a “verbatim copy” of a paper that was rejected by the International Journal of Paediatric Dentistry in 2012 but published by The Journal of Clinical Pediatric Dentistry in 2014.

The first author denied the charges, saying she had finished the paper before reviewing the other, which she suggested rejecting.

Let’s take a look at the retraction note, which tells us more about the journal’s investigation: Continue reading Peer reviewer stole text for her own dentistry paper, says journal investigation

BMJ Case Reports pulled three dental papers for plagiarism

BMJ Case ReportsWe’ve stumbled upon a trio of retractions published in August, 2013 from BMJ Case Reports for “redundant publication” to a group of researchers based in India.

Editors found that the reports, which were published between 2012 and 2013, had considerable “overlaps” with articles that had been published in other journals. Although one of the retracted authors was also an author on one of the overlapping articles, the rest of the authors have no obvious connection to the previous work.

The authors of the three retracted papers are based at the Modern Dental College and Research Centre in India.

One retracted paper, “A rare occurrence of peripheral ossifying fibroma in the first decade of life and its management,” described the case of a 10 year-old girl with a lesion growing on her gums. The notice reads:

Continue reading BMJ Case Reports pulled three dental papers for plagiarism

Case report on cyst surgery sliced by journal for plagiarism

Contemporary Clinical DentistryA case report that detailed the removal of a cyst from the side of a young woman’s face has been retracted for plagiarizing text from a similar case report published two years earlier.

Contemporary Clinical Dentistry posted the notice on July 31. Parts of the 2014 report were “directly copied” from a report published in 2012 by the Journal of Oral and Maxillofacial Pathology. Neither of the reports share authors in common.

The notice reads:

Continue reading Case report on cyst surgery sliced by journal for plagiarism

“Proven plagiarism” extracts paper on keeping teeth healthy in outer space

12548Aeronautic dentistry seems like a fairly unique field, but a review article about keeping teeth healthy in outer space has been retracted from the International Journal of Stomatology & Occlusion Medicine for not being quite unique enough.

“Aeronautic dentistry: an upcoming branch,” a review article, appears to have lifted pieces of other works “verbatim and without citation,” according to a representative from the journal’s publisher.

According to the first author, any plagiarism was purely accidental:

The amount of material which seems to be plagiarised was not done intentionally.

The retraction note is a single line: Continue reading “Proven plagiarism” extracts paper on keeping teeth healthy in outer space

Fraud retraction appears for deceased Maryland dental researcher

osomoporeA former dental researcher at the University of Maryland, Baltimore, has lost a 2009 paper in the journal Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology for fabricating his data on an NIH-funded study.

The researcher, Mark A. Scheper, is not identified in the retraction notice as the person implicated in the university investigation. However, one of his co-authors confirmed his involvement. Scheper died in January 2014 at age 45 of natural causes, according to the Maryland State Medical Examiner.

The article was titled “The oncogenic effects of constitutive Stat3 signaling in salivary gland cancer cells are mediated by survivin and modulated by the NSAID sulindac.” It appeared online in March 2009, and has been cited six times, according to Thomson Scientific’s Web of Knowledge.

According to the abstract: Continue reading Fraud retraction appears for deceased Maryland dental researcher