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de Miranda Ladewig V, Miron Stefani C, De Luca Canto G, Pandis N, Flores-Mir C. A mapping review of systematic reviews in orthodontics: a five-year analysis. Eur J Orthod 2025; 47:cjaf040. [PMID: 40396640 PMCID: PMC12093318 DOI: 10.1093/ejo/cjaf040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2025]
Abstract
OBJECTIVES This mapping review aimed to identify trends, frequently reviewed topics and assess the methodological quality of recent orthodontic systematic reviews (SRs). METHODS SRs published between January 2018 and June 2023 were retrieved from PubMed, EMBASE, SCOPUS, Web of Science, and Google Scholar. Two reviewers independently selected studies and extracted data, with a third resolving discrepancies. Methodological quality was evaluated using AMSTAR-2. RESULTS From 3,131 initial articles, 430 SRs were included. A publication increase of over 50% occurred from 2019 to 2022. The most frequent topics were palatal expansion (12.6%), techniques to accelerate orthodontic movement (11.6%), and clear aligners (9.3%). Only 18.2% of SRs were rated as high or moderate quality, with those on clear aligners rated the lowest (4.9%). Common methodological weaknesses included a lack of protocol registration, absence of excluded study lists, and failure to address publication bias. CONCLUSIONS Orthodontic SRs have increased significantly over the five-year period assessed, with notable increase in contributions from specific countries. However, most SRs exhibited low methodological quality, raising concerns about clinical applicability. Improved adherence to methodological and reporting standards is crucial for enhancing SR quality and credibility.
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Affiliation(s)
- Victor de Miranda Ladewig
- Mike Petryk School of Dentistry, University of Alberta, Edmonton Clinic Health Academy, 5th Floor, 11405 - 87 Avenue NW, Edmonton, Alberta T6G 1C9, Canada
| | - Cristine Miron Stefani
- Department of Dentistry, Health Sciences School, University of Brasilia, Campus Universitário Darcy Ribeiro Brasília-DF | 70910-900, Brasilia, Brazil
| | - Graziela De Luca Canto
- Department of Dentistry, Federal University of Santa Catarina, R. Delfino Conti, 1240 - Trindade, Florianópolis - SC, 88040-535, Santa Catarina, Brazil
| | - Nikolaos Pandis
- Department of Orthodontics, University of Bern, Dental School/Medical Faculty, Bern, Freiburgstrasse 7, 3010, Switzerland
| | - Carlos Flores-Mir
- Mike Petryk School of Dentistry, University of Alberta, Edmonton Clinic Health Academy, 5th Floor, 11405 - 87 Avenue NW, Edmonton, Alberta T6G 1C9, Canada
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Almotairy N. International trends of orthodontic publications: A bibliometric observational study of the last decade (2011-2020). Dental Press J Orthod 2023; 28:e2321175. [PMID: 37018829 PMCID: PMC10069745 DOI: 10.1590/2177-6709.28.1.e2321175.oar] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 10/04/2021] [Indexed: 04/07/2023] Open
Abstract
INTRODUCTION The number of published orthodontic studies has increased considerably over the past ten years. OBJECTIVE To analyze the bibliometric data of international orthodontic studies included in orthodontic journals encompassed by the Scopus database between 2011 and 2020, as well as to undertake data comparison between the period 2010-2015 and the period 2016-2020. MATERIALS AND METHODS A retrospective search was conducted on 14 orthodontic journals included in the Scopus database from 2011 to 2020. Studies of both primary and secondary types were targeted by the search. The yearly number of studies published in the 14 journals, and the first 20 countries, institutions and their type (public/private), and authors, respectively, regarding publication volume, were presented. RESULTS Over the past ten years, the number of publications in the chosen journals reached 9200, where the American Journal of Orthodontics and Dentofacial Orthopedics and Angle Orthodontist topped the journal list, with 22% and 12% of the publications, respectively. Furthermore, the orthodontic publication volume showed a declining trend by the end of the decade (-9%), where academic/public institutions produced most of the orthodontic studies, and the US (20%), Brazil (17%), and South Korea (8%) topped the countries with the most orthodontic studies. A comparison of the two halves of the decade revealed that orthodontic research exhibited an increasing trend in developing nations, especially Egypt (104%), Saudi Arabia (88%), and Iran (83%). CONCLUSION The orthodontic studies published in the chosen journals over the past ten years showed a dynamic change in yearly publication and ranking of countries, institutions, and authors.
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Affiliation(s)
- Nabeel Almotairy
- Qassim University, College of Dentistry, Department of Orthodontics and Pediatric Dentistry (Buraidah, Saudi Arabia)
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Bilgiç F, Küçük EB, Sözer ÖA, Ay Y, Kaya A, Kaptaç M. Analysis of Six Orthodontic Journals in Science Citation Index and Science Citation Index Expanded: A Bibliometric Analysis. Turk J Orthod 2018; 31:73-78. [PMID: 30206565 DOI: 10.5152/turkjorthod.2018.17059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 03/01/2018] [Indexed: 11/22/2022]
Abstract
Objective To analyze the article type, origin, main affiliation, number of publications, authors, and affiliations of six orthodontic journals during two intervals of 5 years each (2006-2010 and 2011-2015). Methods In total, 4879 articles examined in this study were screened online at the individual journal's website. The types of articles and their authorship characteristics in the six orthodontic journals [three journals indexed by Science Citation Index (SCI) and the others indexed by Science Citation Index Expanded (SCIE)] were recorded. Parameters were tested using the Pearson chi-square for independence at a 0.05 level of significance. Results Among all the article types, research articles were the most published in the orthodontic journals indexed by SCI and SCIE in the first (2006-2010; 88.1% and 77.6%, respectively) and second periods (2011-2015; 84.4% and 74.6%, respectively). In the first and second intervals, the European Union was the most common origin among articles accepted by the journals listed in SCI (30.1% and 29.2% respectively), whereas Asia/Oceania was the common origin among articles accepted by the journals listed in SCIE (44.1% and 43.4%, respectively). Conclusion The articles published in the orthodontics journals listed under SCI and SCIE for 2006-2010 and 2011-2015 were significantly different in terms of numbers and characteristics.
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Affiliation(s)
- Fundagül Bilgiç
- Department of Orthodontics, Mustafa Kemal University School of Dentistry, Hatay, Turkey
| | - Eyüp Burak Küçük
- Department of Orthodontics, Mustafa Kemal University School of Dentistry, Hatay, Turkey
| | | | - Yazgı Ay
- Department of Orthodontics, Adnan Menderes University School of Dentistry, Aydın, Turkey
| | - Abdullah Kaya
- Department of Orthodontics, Mustafa Kemal University School of Dentistry, Hatay, Turkey
| | - Murat Kaptaç
- Department of Orthodontics, Adnan Menderes University School of Dentistry, Aydın, Turkey
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Kanavakis G, Dombroski MM, Malouf DP, Athanasiou AE. Demographic characteristics of systematic reviews, meta-analyses, and randomized controlled trials in orthodontic journals with impact factor. Eur J Orthod 2015; 38:57-65. [DOI: 10.1093/ejo/cjv012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Spanou A, Koletsi D, Fleming PS, Polychronopoulou A, Pandis N. Statistical analysis in orthodontic journals: are we ignoring confounding? Eur J Orthod 2015; 38:32-38. [DOI: 10.1093/ejo/cjv004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Gibson RM, Harrison JE. What are we reading now? An update on the papers published in the orthodontic literature (1999–2008). J Orthod 2014; 38:196-207. [DOI: 10.1179/14653121141461] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Harrison JE. Clinical trials in orthodontics II: assessment of the quality of reporting of clinical trials published in three orthodontic journals between 1989 and 1998. J Orthod 2014; 30:309-15; discussion 297-8. [PMID: 14634169 DOI: 10.1093/ortho/30.4.309] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
AIMS To test the hypothesis that the quality of reporting of orthodontic clinical trials is insufficient to allow readers to assess the validity of the trial. DESIGN A retrospective observational study. SETTING The American Journal of Orthodontics and Dentofacial Orthopedics (AJODO), the British Journal of Orthodontics (BJO) and European Journal of Orthodontics (EJO). DATA SOURCE Clinical trials published between 1989 and 1998. METHOD A hand search was performed to identify all clinical trials. The concealment of allocation, whether the trial was randomized, double blind, and whether there was a description of withdrawals and dropouts was recorded. RESULTS One hundred and fifty-five trial reports were identified of which 4 (2.6%) were adequately concealed, 85 (54.8%) were described as being randomized, 10 (6.5%) as double-blind, and 44 (28.4%) gave a description of withdrawals and drop-outs from the trial. The type of randomization was considered appropriate in 78 (50.3%) reports and in 57 (36.8%) reports the level of blinding was considered appropriate. When assessed for the risk of bias in the reported trials,(1) one trial (0.6%) had a low risk of bias, 17 (11%) a moderate risk, and 137 (88.4%) a high risk. CONCLUSIONS In general the quality of reporting orthodontic clinical trials was insufficient to allow readers to assess the validity of the trials. Reporting of clinical trials could be improved by orthodontic journals adopting the CONSORT statement(2,)(3) to ensure that all relevant information is provided.
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Affiliation(s)
- J E Harrison
- Liverpool University Dental Hospital and School of Dentistry, UK.
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Primo NA, Gazzola VB, Primo BT, Tovo MF, Faraco IM. Bibliometric analysis of scientific articles published in Brazilian and international orthodontic journals over a 10-year period. Dental Press J Orthod 2014; 19:56-65. [PMID: 24945515 PMCID: PMC4296603 DOI: 10.1590/2176-9451.19.2.056-065.oar] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objective This study aimed at describing the profiles of Brazilian and international studies
published in orthodontic journals. Methods The sample comprised 635 articles selected from two scientific journals, i.e.,
Dental Press Journal of Orthodontics and American Journal of Orthodontics and
Dentofacial Orthopedics, which were analyzed at three different intervals over a
10-year period (1999 - 2004 - 2009). Articles were described in terms of knowledge
domain, study design, and country of origin (or state of origin for Brazilian
papers). Results The most frequent study designs adopted in international studies were cohort
(23.9%) and cross-sectional (21.7%) designs. Among Brazilian papers,
cross-sectional studies (28.9%) and literature reviews (24.6%) showed greater
frequency. The topics most often investigated were dental materials (17%) and
treatment devices (12.4%) in international articles, with the latter topic being
addressed by 16% of the Brazilian publications, followed by malocclusion, with
12.6%. In all cases, the most frequent countries of origin coincided with the
countries of origin of each journal. Conclusions The majority of the studies analyzed featured a low level of scientific evidence.
Moreover, the findings showed that journals tend to publish studies produced in
their own country of origin, and that there are marked discrepancies in the number
of papers published by different Brazilian states.
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Baumgartner S, Pandis N, Eliades T. Exploring the publications in three major orthodontic journals: a comparative analysis of two 5-year periods. Angle Orthod 2014; 84:397-403. [PMID: 24090122 PMCID: PMC8667508 DOI: 10.2319/071113-507.1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 08/01/2013] [Indexed: 06/24/2024] Open
Abstract
OBJECTIVE To analyze the types of articles and authorship characteristics of three orthodontic journals--American Journal of Orthodontics and Dentofacial Orthopedics (AJODO), The Angle Orthodontist (AO), and European Journal of Orthodontics (EJO)--published between 2008 and 2012 and to assess the differences in content within this period and an earlier period of 1998 to 2002. MATERIALS AND METHODS Each journal's content was accessed through the web edition. From each article, the following parameters were recorded: article type, number of authors, number of affiliations, source of article (referring to the first author's affiliation), and geographic origin. Descriptive statistics were performed and selected parameters were analyzed with the Pearson chi-square or Fisher exact test for independence at the .05 level of significance. RESULTS Review of differences between the two periods showed that the number of publications was almost double. The percentages of multi-authored articles increased. Fewer studies derived from the United States/Canada and European Union countries. Increases for articles from non-European Union countries, Asia, and other countries were found. Characteristics of the second period showed that the EJO and AO published more research articles, whereas the AJODO regularly published case reports and other articles. Approximately 75% of all studies derived from orthodontic departments. CONCLUSIONS The publications from 1998-2002 and 2008-2012 were significantly different both in terms of numbers and characteristics. Within 2008-2012 there were notable differences between the three journals concerning the type and origin of the publications.
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Affiliation(s)
- Stefan Baumgartner
- Assistant Professor, Department of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Nikolaos Pandis
- Private practice, Corfu, Greece; Visiting Assistant Professor, Department of Orthodontics and Dentofacial Orthopedics, Dental School/Medical Faculty, University of Bern, Bern, Switzerland
| | - Theodore Eliades
- Professor and Department Chair, Department of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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Hui J, Han Z, Geng G, Yan W, Shao P. The 100 top-cited articles in orthodontics from 1975 to 2011. Angle Orthod 2012; 83:491-9. [PMID: 23050741 DOI: 10.2319/040512-284.1] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To identify the 100 top-cited articles published in orthodontics journals and to analyze their characteristics to investigate the achievement and development of orthodontics research in past decades. METHODS AND MATERIALS The Institute for Scientific Information Web of Knowledge Database and the 2011 Journal Citation Report Science Editions were used to retrieve the 100 top-cited articles published in orthodontics journals since 1975. Some basic information was collected by the Analyze Tool on the Web of Science, including citation time, publication title, journal name, publication year, and country and institution of origin. A further study was then performed to determine authorship, article type, field of study, study design, and level of evidence. RESULTS The 100 target articles were retrieved from three journals: American Journal of Orthodontics and Dentofacial Orthopedics (n = 74), The Angle Orthodontist (n = 15), and European Journal of Orthodontics (n = 11). Since 1975, the articles cited 89 to 545 times mainly originated from the United States, and the overwhelming majority of articles were clinical. The most common study design was case series; 40 articles were classified as level IV and 12 as level V evidence. CONCLUSIONS The 100 top-cited articles in orthodontics are generally old articles, rarely possessing high-level evidence.
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Affiliation(s)
- Jifang Hui
- Department of Orthodontics, School of Dentistry, Harbin Medical University, Harbin, China
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Lippold C, Moiseenko T, Drerup B, Schilgen M, Végh A, Danesh G. Spine deviations and orthodontic treatment of asymmetric malocclusions in children. BMC Musculoskelet Disord 2012; 13:151. [PMID: 22906114 PMCID: PMC3489858 DOI: 10.1186/1471-2474-13-151] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Accepted: 08/15/2012] [Indexed: 12/03/2022] Open
Abstract
Background The aim of this randomized clinical trial was to assess the effect of early orthodontic treatment for unilateral posterior cross bite in the late deciduous and early mixed dentition using orthopedic parameters. Methods Early orthodontic treatment was performed by initial maxillary expansion and subsequent activator therapy (Münster treatment concept). The patient sample was initially comprised of 80 patients with unilateral posterior cross bite (mean age 7.3 years, SD 2.1 years). After randomization, 77 children attended the initial examination appointment (therapy = 37, control = 40); 31 children in the therapy group and 35 children in the control group were monitored at the follow-up examination (T2). The mean interval between T1 and T2 was 1.1 years (SD 0.2 years). Rasterstereography was used for back shape analysis at T1 and T2. Using the profile, the kyphotic and lordotic angle, the surface rotation, the lateral deviation, pelvic tilt and pelvic torsion, statistical differences at T1 and T2 between the therapy and control groups were calculated (t-test). Our working hypothesis was, that early orthodontic treatment can induce negative therapeutic changes in body posture through thoracic and lumbar position changes in preadolescents with uniltaral cross bite. Results No clinically relevant differences between the control and the therapy groups at T1 and T2 were found for the parameters of kyphotic and lordotic angle, the surface rotation, lateral deviation, pelvic tilt, and pelvic torsion. Conclusions Our working hypothesis was tested to be not correct (within the limitations of this study). This randomized clinical trial demonstrates that in a juvenile population with unilateral posterior cross bite the selected early orthodontic treatment protocol does not affect negatively the postural parameters. Trial registration DRKS00003497 on DRKS
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Affiliation(s)
- Carsten Lippold
- Poliklinik für Kieferorthopädie, Universität Münster, Münster, Germany.
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Gibson R, Harrison J. What are we reading? An analysis of the orthodontic literature 1999 to 2008. Am J Orthod Dentofacial Orthop 2011; 139:e471-84. [DOI: 10.1016/j.ajodo.2010.07.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Revised: 03/01/2010] [Accepted: 07/01/2010] [Indexed: 10/18/2022]
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Harrison JE. Evidence-based orthodontics. J Orthod 2005. [DOI: 10.1179/146531205225020988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Affiliation(s)
- S R Bickley
- Cochrane Oral Health Group, University Dental Hospital of Manchester, UK.
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Harrison JE. Clinical trials in orthodontics I: demographic details of clinical trials published in three orthodontic journals between 1989 and 1998. J Orthod 2003; 30:25-30; discussion 21. [PMID: 12644604 DOI: 10.1093/ortho/30.1.25] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIM To test the hypothesis that there is insufficient evidence available, from clinical trials, to allow evidence-based decisions to be made on the effectiveness of orthodontic treatment. OBJECTIVES To identify reports of orthodontic clinical trials and assess their demographic characteristics. DESIGN A retrospective, observational study. SETTING The American Journal of Orthodontics and Dentofacial Orthopedics, British Journal of Orthodontics, and European Journal Orthodontics. DATA SOURCE Clinical trials published between 1989 and 1998. METHOD A hand-search was performed to identify all clinical trials. The journal and year of publication, research method, interventions, and sample size of the trials reported were recorded. RESULTS One-hundred-and-fifty-five trial reports were identified of which 56 (36.1%) were published from 1989 to 1993 and 99 (69%) from 1994 to 1998. Ninety-nine (69%) reports were published in the AJO-DO, 18 (11.6%) in the BJO and 38 (24.5%) in the EJO. Eighty-five (54.8%) were reports of randomized controlled trials and 70 (45.2%) of controlled clinical trials. The interventions most frequently assessed were bonding materials (21.9%), growth modification treatments (21.3%), and oral hygiene procedures (9.0%). The median sample size was 32 (IQR 19.5, 50). CONCLUSION There is sufficient evidence available from clinical trials to warrant doing systematic reviews of orthodontic clinical trials to aid decision-making.
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Affiliation(s)
- J E Harrison
- Department of Cinical Dental Services, Liverpool University Dental Hospital and School of Dentistry, UK.
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Atherton GJ, Glenny AM, O'Brien K. Development and use of a taxonomy to carry out a systematic review of the literature on methods described to effect distal movement of maxillary molars. J Orthod 2002; 29:211-6; discussion 195-6. [PMID: 12218199 DOI: 10.1093/ortho/29.3.211] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVE To devise a taxonomy for the assessment of the orthodontic literature on methods described to effect distal movement of maxillary molars, to test the taxonomy for inter-assessor reliability, and to use it to classify studies in a systematic review of the literature. DATA SOURCES Articles appearing in the American Journal of Orthodontics and Dentofacial Orthopedics, Angle Orthodontist, (British) Journal of Orthodontics, European Journal of Orthodontics, and the Journal of Clinical Orthodontics between 1988 and 1998. Data selection Articles describing or evaluating the effect of appliances known or thought to have a distalizing effect on maxillary molars. DATA EXTRACTION A taxonomy was designed, tested by two reviewers independently to assess levels of agreement, and then used to record the features of the articles in a systematic review of the literature. DATA SYNTHESIS Kappa scores were used to assess the level of agreement between reviewers and found to be satisfactory. Studies were grouped according to study design and features of their methodology quantified. CONCLUSIONS Having devised and tested the taxonomy, we found that the quality of evidence for any method of moving maxillary molars distally was not high.
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Affiliation(s)
- G J Atherton
- Orthodontic Practice, Halifax, UK University Dental Hospital of Manchester, UK.
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van der Sanden WJM, Mettes DG, Grol RPTM, Plasschaert AJM, Verdonschot EH. Development of clinical practice guidelines for dentists: methods for topic selection. Community Dent Oral Epidemiol 2002; 30:313-9. [PMID: 12147173 DOI: 10.1034/j.1600-0528.2002.00060.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES The aim of this study was to compare four methods for assessing the preferences of the dental profession for topics to be considered for the development of clinical practice guidelines. METHODS The methods were: (1) a survey among dentists, (2) an analysis of topics discussed in dental peer groups, and (3) screening of dental journals. A fourth method was obtained from method number 3. The frequencies of the reported topics were calculated for each of the methods. For the fourth method, the number of publications per topic were plotted against the year of publication, and the slope of the linear regression line was used as an indicator. Within each of the four methods, the topics were ranked according to the frequency in which they were reported, and to the slope value. The reliability of the methods was tested by the "item-rest sum correlation", which is the correlation of the rank positions of one method with the sum of the rank positions obtained by the remaining three methods. RESULTS In using all methods, a total of 1027 topics were obtained. Reclassification resulted in 34 topics. Moderate item-rest sum correlations ranging from 0.34 to 0.48 were found for all methods, indicating that the rank order of every method moderately predicts the sum of the rank orders obtained by all other methods. The topic 'prevention of cross-infection' had the highest overall rank position. CONCLUSION It is concluded that the four applied methods appeared to provide a consistent ranking of potential topics. In view of the fact that the questionnaire method is generally applicable, this method should be preferred for assessing dentists' preferences for topics to be considered for the development of clinical practice guidelines.
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Affiliation(s)
- Wil J M van der Sanden
- Department of Cariology and Endodontology, University Medical Center, Centre for Quality of Care Research (WOK), University of Nijmegen, The Netherlands.
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Affiliation(s)
- J E Harrison
- Orthodontic Department, Liverpool University Dental Hospital, Pembroke Place, Liverpool L3 5PS, UK
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Affiliation(s)
- J E Harrison
- Liverpool University Dental Hospital, Pembroke Place, Liverpool L3 5PS, UK
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Abstract
BACKGROUND 'Posterior crossbite' occurs when the top back teeth bite inside the bottom back teeth. When it affects one side of the mouth the lower jaw may have to move to one side to allow the back teeth to meet together. This movement may have long term effects on the growth of the teeth and jaws. It is unclear what causes posterior crossbites and they may develop or improve at any time from when the baby teeth come into the mouth to when the adult teeth come through. Several treatments have been recommended to correct them. Some treatments widen the upper teeth whilst others are directed at treating the cause of the posterior crossbite e.g. breathing problems or sucking habits. Most treatments have been used at each stage of dental development. OBJECTIVES The aim of this review was to identify and evaluate orthodontic treatments used to expand the maxillary dentition and / or correct posterior crossbites. SEARCH STRATEGY All randomised and controlled clinical trials identified from the Cochrane Controlled Trials Register according to the Oral Health Group Search Strategy and stored in the Cochrane Collaboration Oral Health Group Database of Clinical Trials, a MEDLINE search using the Mesh term and free text words, hand searching the British, European and American journals of orthodontics and Angle Orthodontist, and the bibliographies of papers and review articles which reported the outcome of orthodontic treatment to expand the maxillary dentition and/or correct a posterior crossbite that were published as abstracts or papers between 1970 and 1997 in English. SELECTION CRITERIA All randomised and controlled clinical trials published as full papers or abstracts which reported quantitative data on the outcomes crossbite correction, molar and/or canine expansion, signs and symptoms of temporomandibular joint dysfunction or respiratory disease. DATA COLLECTION AND ANALYSIS Data were extracted without blinding to the authors, treatments used or results obtained. The first named authors of randomised and controlled clinical trials were written to in an attempt to establish the method of randomisation / allocation and identify unpublished studies. Odds ratio, 95% confidence intervals, relative risk, relative risk reduction, absolute risk reduction, and the number need to treat were calculated for event data. The weighted mean difference and 95% confidence intervals were calculated for continuous data. MAIN RESULTS Using the search strategy 7 randomised and 5 controlled clinical trials were identified but following correspondence with the authors, 3 of the randomised and 1 of the controlled clinical trials were reclassified giving 5 randomised and 7 controlled clinical trials for inclusion in the review. Trials comparing occlusal grinding in the primary dentition with/without an upper removable expansion appliance in the mixed dentition versus no treatment, banded versus bonded rapid maxillary expansion, banded versus bonded slow maxillary expansion, transpalatal arch with/without buccal root torque and an upper removable expansion appliance versus quad-helix were identified. Occlusal grinding in the primary dentition with/without the addition of an upper removable expansion plate, in the mixed dentition for those children who did not respond to grinding, was shown to be effective in preventing a posterior crossbite in the primary dentition from being perpetuated to the mixed and permanent dentitions. No evidence of a difference in treatment effect (molar and canine expansion) between the test and control intervention was found in the trials which compared banded versus bonded rapid maxillary expansion, banded versus bonded slow maxillary expansion, transpalatal arch with/without buccal root torque, or upper removable expansion appliance versus quad-helix. (ABSTRACT TRUNCATED)
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Affiliation(s)
- J E Harrison
- Department of Clinical Dental Sciences, Liverpool University Dental Hospital, Pembroke Place, Liverpool, Merseyside, UK, L3 5PS.
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Korn EL, Baumrind S. Clinician preferences and the estimation of causal treatment differences. Stat Sci 1998. [DOI: 10.1214/ss/1028905885] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Re: An analysis of papers published in the British and European Journals of Orthodontics. BRITISH JOURNAL OF ORTHODONTICS 1997; 24:74. [PMID: 9206504 DOI: 10.1093/ortho/24.1.74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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