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”
A 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
An 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This article has been withdrawn due to wrong content with serious consequences such as danger to people’s health.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”
Following 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
We’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
A 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
Aeronautic 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
A 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
We don’t have much to go on here, for a retraction from the International Journal of Stem Cells.
Here’s what we do know: Dental researchers at several universities in Egypt, including Cairo University, Future University, and Misr University published a paper together. According to the article, they gave dogs oral ulcers and then injected the ulcers with either fat-derived stem cells, bone marrow stem cells, or saline. The researchers conclude that the fat stem cells, also known as adipose derived stem cells, helped the dogs heal.
Unfortunately, we have no idea what went wrong, because the retraction notice is useless. Here in its entirety is the notice for “Adipose Stem Cells as Alternatives for Bone Marrow Mesenchymal Stem Cells in Oral Ulcer Healing”: Continue reading Stem cell study retraction produces useless notice
The International Association for Dental Research has retracted a student travel award after discovering that the recipient had previously published the work he used to secure the grant, including in an abstract he presented at the same conference last year.
The self-plagiarism was uncovered by an anonymous group of students at the Hong Kong University dentistry school, where the student is a PhD student. The unnamed students sent both the IADR and HKU faculty members a color-coded chart showing identical phrases between the 2014 abstract, a 2013 paper published in the Journal of Periodontal Research called “Human umbilical vein endothelial cells synergize osteo/odontogenic differentiation of periodontal ligament stem cells in 3D cell sheets,” and another abstract the authors presented at the 2013 IADR conference.
The paper and both abstracts were written by P.K.C.P. Panduwawala, who lost the travel grant, along with HKU’s former dean of dentistry L.P. Samaranayake; HKU’s associate dean for research L.J. Jin; and C.F. Zhang, part of HKU’s tissue engineering group.
The IADR’s page now lists the winners with a note at the bottom: Continue reading Dentistry student loses travel grant for duplicating his own work