Category: dentistry

Stem cell study retraction produces useless notice

int j stem cellsWe 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

Dentistry student loses travel grant for duplicating his own work

iadrThe 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

Plagiarism charge bites authors of oral pain paper

jiohheader_imgThe Journal of International Oral Health has retracted a 2014 paper on dental pain by a group from India. Although the ostensible reason was plagiarism, we wonder if the offending authors might gone a bit further.

The article, “Sniffing out pain: An in vivo intranasal study of analgesic efficacy,” purported to be a study of 20 patients receiving different therapies for emergency oral pain. It has yet to be cited, according to Thomson Scientific’s Web of Knowledge. Here’s the abstract: Continue reading Plagiarism charge bites authors of oral pain paper

What was behind an oddly-worded dental retraction? The authors stole someone’s thesis

Image via Tambako
Image via Tambako

A dentistry journal has retracted a paper after discovering the research was lifted from dissertation work by two people unrelated to the paper authors.

Here’s the notice for “Treatment of mandibular angle fracture with a 2 mm, 3-dimensional rectangular grid compression miniplates: A prospective clinical study“: Continue reading What was behind an oddly-worded dental retraction? The authors stole someone’s thesis

Wrong in the tooth: Faked data, authorship issues force retraction of dental paper

cridCase Reports in Dentistry has pulled a 2014 article about an oral parasitic infection (caution: not pretty) after learning that the authors were not exactly honest about their work.

Here’s the abstract of the paper, “Rhinosporidiosis of the Parotid Duct”: Continue reading Wrong in the tooth: Faked data, authorship issues force retraction of dental paper

This retraction has teeth: Journal changes publication policy after discovering misconduct

Screen Shot 2014-08-26 at 10.43.29 AMThe Indian Society of Periodontology has changed their editorial policy as the result of an author who had “neither taken adequate permission from nor given due acknowledgement to all authors concerned.”

Now, any authors will be required to sign a contract acknowledging accountability for the content of the submitted paper, as well as be able to state the specific work contributed by each author.

Here’s the notice from the Journal of the Indian Society of Periodontology: Continue reading This retraction has teeth: Journal changes publication policy after discovering misconduct

A first? Dental journal retracts three papers because authors didn’t pay publication charges

dmj_33_1Dental Materials Journal has retracted three papers by different groups of authors for “violation of our publishing policies and procedures” — which turns out to be a polite way of saying “they wouldn’t pay our fees.”

The articles are: Continue reading A first? Dental journal retracts three papers because authors didn’t pay publication charges

Dental journal pulls article for “sufficient evidence” of plagiarism

ImageA group of dental researchers from India has lost their 2008 paper on the salubrious effects of coconut water on periodontal health.

The article, “Comparison of coconut water, propolis, HBSS, and milk on PDL cell survival,” appeared in the Journal of Endodontics, an Elsevier title. It has been cited 24 times, according to Thomson Scientific’s Web of Knowledge.

Here’s the abstract: Continue reading Dental journal pulls article for “sufficient evidence” of plagiarism

France tries husband-wife team for research misconduct in plagiarism case

Mr Sixou
Michel Sixou

We’re always glad to have guest posts, and here’s one from François-Xavier Coudert, reporting from France.

As we reported the other day, a Nature editorial suggested that police involvement might be an appropriate response to research misconduct. The French seem to agree, based on reports in the media there, as Coudert writes:

A husband-wife team of French odontology researchers at l’université Paul-Sabatier in Toulouse have been on trial in that country for research misconduct. Christine Marchal-Sixou, an associate professor, faces a charge of plagiarism, and Michel Sixou, full professor and dean of the faculty of dental medicine until September, has been charged with complicity. Continue reading France tries husband-wife team for research misconduct in plagiarism case

Say “Argh!” Dental journal extracts paper for plagiarism

hindawiA group of authors from Saudi Arabia and Egypt has lost their 2012 paper in the International Journal of Dentistry for what appears to be a case of large-scale lifting of text from a previously published paper.

The now-retracted article was titled “A Prospective Study of Early Loaded Single Implant-Retained Mandibular Overdentures: Preliminary One-Year Results,” and has yet to be cited, according to Thomson Scientific’s Web of Knowledge.

From the abstract: Continue reading Say “Argh!” Dental journal extracts paper for plagiarism