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Trends in dental and medical research and relevance of randomized controlled trials to common activities in general dentistry
Östergötlands Läns Landsting, Public Dental Service.
Östergötlands Läns Landsting, Public Dental Service.
2000 (English)In: Acta Odontologica Scandinavica, ISSN 0001-6357, Vol. 58, no 6, 260-264 p.Article in journal (Refereed) Published
Abstract [en]

The aim was to study publication trends in dental and medical research as well as the proportion of randomized controlled trials in dental research (RCT-Ds) of relevance to common activities in general dentistry. The study was based on Medline searches, 1969-99 (MeSH terms). Data from Public Dental Services (county of Östergötland, Sweden) were used to find the most common activities in the practice of general dentistry. In dental research the annual number of publications had decreased from 5,900 in 1969 to 4,400 in 1999, corresponding to 9,100 and 14,000, respectively, in medical research. Clinical trials in dental research had increased to 7% and RCT-Ds to 5% of all dental research during 1969-99. In medicine, clinical trials and randomized controlled trials had increased to 2% and 1%, respectively. In dental and medical research, meta-analyses (MAs) totalled 0.1-0.2% in 1994 and 1999. One out of 200 dental research publications in 1979-99 was an RCT-D of relevance to the most common activities in general dentistry. These activities contributed to more than 80% of the dental care of children and adolescents and to more than 60% of the dental care of adults in 1999.

Place, publisher, year, edition, pages
2000. Vol. 58, no 6, 260-264 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-47530DOI: 10.1080/00016350050217109OAI: diva2:268426
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2012-10-29
In thesis
1. Randomised clinical trials and evidence-based general dentistry
Open this publication in new window or tab >>Randomised clinical trials and evidence-based general dentistry
2004 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

A growing number of scientific publications and new treatment modalities have increased the difficulties of keeping up to date with the latest research evidence in clinical practice. Therefore, evidence-based dentistry and medicine (EBDM) has evolved as an attempt to summarise current best evidence.

The overall aim of this thesis was to study the availability and the methodological quality of randomised controlled trials (RCTs) in dental (RCT-Ds) and medical (RCT-Ms) research, and publications describing epidemiological registration methods of dental caries. It also examines the applicability of evidence-based methods to general dental practice.

The most important findings were that the armual number of publications in dental research showed a decreasing trend from 1969 to 1999, whereas medical research increased. The armual number of clinical trials (CTs), meta-analyses and RCTs increased, but represented just a fraction of all publications in both dental and medical research. Medical subject heading (MeSH) searches provided an overall adequate method for rapid location of RCT-Ds on Medline for most areas of dental research. The quality of RCT-Ds and RCT-Ms were generally inadequate. There was no correlation between the quality of RCTs and Journal Impact Factor. The armual number of publications, CTs and RCTs in periodontal research (RCT-Ps) increased during 1980-2000. A few clinical research areas dominated the RCT-Ps. Most of the RCT-Ps were published in just two different dental journals. Validation methodology in publications describing epidemiological methods for registering dental caries was inadequate according to EBDM recommendations and needs to be improved.

Place, publisher, year, edition, pages
Linköping: Linköpings universitet, 2004. 57 p.
Linköping University Medical Dissertations, ISSN 0345-0082 ; 865
Dental care, dental research, epidemiological methods, evidence-based medicine, Medline, randomized controlled trials, validity
National Category
Social Sciences
urn:nbn:se:liu:diva-22686 (URN)1978 (Local ID)91-7373-839-5 (ISBN)1978 (Archive number)1978 (OAI)
Public defence
2004-11-12, Aulan, Hälsans Hus, Hälsouniversitetet, Linköping, 13:00 (Swedish)
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2012-10-29Bibliographically approved

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Sjögren, PetteriHalling, Arne
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