Use of methodological tools for assessing the quality of studies in periodontology and implant dentistry: a systematic review

submitted by: Faggion
Objective To evaluate the methodological approaches used to assess the quality of studies included in systematic reviews (SRs) in periodontology and implant dentistry. Materials & Methods Two electronic databases (PubMed and Cochrane Database of Systematic Reviews) were searched independently to identify SRs examining interventions published through 2 September 2013. The reference lists of included SRs and records of 10 specialty dental journals were searched manually. Methodological...
Authors: Clovis Jr. Faggion, Fahd Huda, Jason Wasiak

Association between water consumption and body weight outcomes: a systematic review

submitted by: Rebecca
BACKGROUND Drinking water is often applied as a dietary means for weight loss and overweight/obesity prevention, but no evidence-based recommendation exists for this indication. OBJECTIVE We summarized the existing evidence on the association between water consumption and body weight outcomes in adults of any body weight status. DESIGN In a systematic review, we retrieved studies from 4 electronic databases (MEDLINE, EMBASE, CINAHL, and COCHRANE), cross-references by PubMed functions...
Authors: R Muckelbauer, G Sarganas, A Grüneis, J Müller-Nordhorn

Effect of periodontal disease on diabetes: systematic review of epidemiologic observational evidence

submitted by: WSB
Background: Periodontal disease and diabetes mellitus are common, chronic diseases worldwide. Epidemiologic and biologic evidence suggests periodontal disease may affect diabetes. Objective: To systematically review non-experimental, epidemiologic evidence for effects of periodontal disease on diabetes control, complications, and incidence. Data sources: Electronic bibliographic databases, supplemented by hand searches of recent and future issues of relevant journals. Study eligibility...
Authors: Wenche S. Borgnakke, Pekka V. Ylostalo, George W. Taylor, Robert R. Genco

Is there a dose-response relation of dietary glycemic load to risk of type 2 diabetes? Meta-analysis of prospective cohort studies

submitted by: Geoffrey Livesey
Background: Although much is known about the association between dietary glycemic load (GL) and type 2 diabetes (T2D), prospective cohort studies have not consistently shown a positive dose-response relation. Objective: We performed a comprehensive examination of evidence on the dose response that links GL to T2D and sources of heterogeneity among all prospective cohort studies on healthy adults available in the literature. Design: We conducted a systematic review of all prospective...
Authors: Geoffrey Livesey, Richard Taylor, Helen Livesey, Simin Liu

Multivitamin-multimineral supplementation and mortality: A meta-analysis of randomized controlled trials

submitted by: mpase
Background: Multivitamins are the most commonly used supplement in the developed world. Recent epidemiological findings suggest multivitamin use increases the risk of mortality. Objectives: We aimed to determine whether multivitamin-multimineral treatment, used for primary or secondary prevention, increases the risk of mortality in independently living adults. Methods: We performed a meta-analysis of randomized, controlled trials. Multiple electronic databases were systematically searched...
Authors: Helen Macpherson, Andrew Pipingas, Matthew Pase

Effects of energy-restricted high-protein, low-fat compared with standard-protein, low-fat diets: a meta-analysis of randomized controlled trials

submitted by: tom_witches
Background: It is currently unclear whether altering the carbohydrate-to-protein ratio of low-fat, energy-restricted diets augments weight loss and cardiometabolic risk markers. Objective: The objective was to conduct a systematic review and meta-analysis of studies that compared energy-restricted, isocaloric, high-protein, low-fat (HP) diets with standard-protein, low-fat (SP) diets on weight loss, body composition, resting energy expenditure (REE), satiety and appetite, and...
Authors: Thomas Wycherley, Lisa Moran, Peter Clifton, Manny Noakes, Grant Brinkworth

Differences in peri-implant conditions between fully and partially edentulous subjects: a systematic review

submitted by: waalycm
Aim: The aim of this study was to compare peri-implant conditions between fully edentulous (FES) and partially edentulous subjects (PES). Material and methods: A systematic review was conducted. The MEDLINE, EM- BASE and CENTRAL databases were searched for publications up to 1 January 2012. Studies reporting on the bleeding tendency of the peri-implant mucosa and/ or studies reporting on the prevalence of peri-implant mucositis and/or peri-im- plantitis were considered. Results:...
Authors: Y.C.M. de Waal, A.J. van Winkelhoff, H.J.A. Meijer, G.M. Raghoebar, E.G. Winkel

Greater whole-grain intake is associated with lower risk of type 2 diabetes, cardiovascular disease, and weight gain

submitted by: sarachacko
Whole-grain and high fiber intakes are routinely recommended for prevention of vascular diseases; however, there are no comprehensive and quantitative assessments of available data in humans. The aim of this study was to systematically examine longitudinal studies investigating whole-grain and fiber intake in relation to risk of type 2 diabetes (T2D), cardiovascular disease (CVD), weight gain, and metabolic risk factors. We identified 45 prospective cohort studies and 21...
Authors: Sara A. Chacko, Eva Qing Ye, Elizabeth L. Chou, Matthew Kugizaki, Simin Liu

The impact of periodontal therapy on oral health-related quality of life in adults: a systematic review

submitted by: sidshanbhag
Background: Periodontal disease negatively affects oral health-related quality of life (OHRQoL). While there is sufficient evidence for the clinical efficacy of periodontal therapy, data on patient-based outcomes are limited. Objectives: To systematically review the available evidence on the impact of periodontal therapy on OHRQoL in adults. Material & Methods: MEDLINE, EMBASE, CENTRAL and LILACS were searched without language restrictions. Longitudinal observational and intervention...
Authors: Siddharth Shanbhag, Manu Dahiya, Ray Croucher

Comparison of vitamin D2 and vitamin D3 supplementation in raising serum 25-hydroxyvitamin D status: a systematic review and meta-analysis

submitted by: Laura Tripkovic
Background: Currently, there is a lack of clarity in the literature as to whether there is a definitive difference between the effects of vitamins D2 and D3 in the raising of serum 25-hydroxyvitamin D [25(OH)D]. Objective: The objective of this article was to report a systematic review and meta-analysis of randomized controlled trials (RCTs) that have directly compared the effects of vitamin D2 and vitamin D3 on serum 25(OH)D concentrations in humans. Design: The ISI Web of Knowledge...
Authors: Laura Tripkovic, Helen Lambert, Kathryn Hart, Colin P Smith, Giselda Bucca, Simon Penson, Gemma Chope, Elina Hypponen, Jacqueline Berry, Reinhold Vieth, Susan Lanham-New