Table 1: Included studies: authors, year of publication, full title, type and topic(s) of the article.

Authors Year Title Type of the Article Topic(s)
Kongstad et al. 2009 The relationship between body mass index and periodontitis in the Copenhagen city hearth study Cross-sectional Direct evidences of the possible association between obesity and periodontitis
Saxlin et al. 2010 Overweight and obesity weakly predict the development of periodontal infection Longitudinal Direct evidences of the possible association between obesity and periodontitis
Chaffee et al. 2010 Association between chronic periodontal disease and obesity: A systematic review and meta-analysis Systematic review + meta-analysis Direct evidences of the possible association between obesity and periodontitis
+
Age and Gender influence (etc.)
Nascimento et al. 2016 Is there a relationship between obesity and tooth loss and edentulism? A systematic review and meta-analysis Systematic review + meta-analysis Direct evidences of the possible association between obesity and periodontitis
De Castilhos et al. 2012 Association between obesity and periodontal disease in young adults: A population-based birth cohort Longitudinal Direct evidences of the possible association between obesity and periodontitis
Khan et al. 2018 Is overweight/obesity a risk factor for periodontitis in young adults and adolescents?: A systematic review Systematic review Age and Gender influence on the possible association between obesity and periodontitis
Martinez-Herrera et al. 2017 Association between obesity and periodontal disease. A systematic review of epidemiological studies and controlled clinical trials Systematic review Age and Gender influence on the possible association between obesity and periodontitis
Keller et al. 2015 Association between periodontal disease and overweight and obesity: A systematic review Systematic review Age and Gender (etc.)
+
Smoking habit influence on the possible association between obesity and periodontitis
+
Overweight/obesity effect on periodontitis onset and worsening
Fontanille et al. 2018 Bariatric surgery and periodontal status: A systematic review with meta-analysis Systematic review + meta-analysis Indirect evidences of the possible association between obesity and periodontitis
De Souza et al. 2018 Relationship between bariatric surgery and periodontal status: A systematic review and meta-analysis Systematic review + meta-analysis Indirect evidences of the possible association between obesity and periodontitis
Papageorgiou et al. 2015 Effect of overweight/obesity on response to periodontal treatment: systematic review and a meta-analysis Systematic review + meta-analysis Indirect evidences of the possible association between obesity and periodontitis
Suvan et al. 2000 Periodontal complications with obesity Systematic review Indirect evidences of the possible association between obesity and periodontitis
+
Overweight/obesity effect on periodontitis onset and worsening
Gerber et al. 2016 Influence of obesity on the outcome of non-surgical periodontal therapy - A systematic review Systematic review Indirect evidences of the possible association between obesity and periodontitis
Moura-Grec et al. 2014 Obesity and periodontitis: systematic review and meta-analysis Systematic review + meta-analysis Overweight/obesity effect on periodontitis onset and worsening
Suvan et al. 2011 Association between overweight/obesity and periodontitis in adults. A systematic review Systematic review Overweight/obesity effect on periodontitis onset and worsening
Furugen et al. 2008 The relationship between periodontal condition and serum levels of resistin and adiponectin in elderly Japanese Cross-sectional Potential etiopathogenic and molecular links between obesity and periodontitis
+
Inhibitor of the plasminogen activator
+
Adiponectin
+
Leptin
Genco et al. 2005 A proposed model linking inflammation to obesity, diabetes and periodontal infections Cross-sectional Potential etiopathogenic and molecular links between obesity and periodontitis
Vivekannada et al. 2019 Impact of Weight Reduction on Adiponectin and TNF-α Levels in the Gingival Crevicular Fluids of Obese Patients with and without Periodontal Disease Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
Dos Santos et al. 2019 Clinical periodontal conditions in individuals after bariatric surgery: A systematic review and meta-analysis Systematic review + meta-analysis Potential etiopathogenic and molecular links between obesity and periodontitis
Nascimento et al. 2015 Is weight gain associated with the incidence of periodontitis? A systematic review and meta-analysis Systematic review + meta-analysis Potential etiopathogenic and molecular links between obesity and periodontitis
Wilkins et al. 2017 Influence of Obesity on Periodontitis Progression Is Conditional on Interleukin-1 Inflammatory Genetic Variation Longitudinal Potential etiopathogenic and molecular links between obesity and periodontitis
+
IL-1
Kopp et al. 2003 Impact of weight loss on inflammatory proteins and their association with the insulin resistance syndrome in morbidly obese patients Cross-sectional + Longitudinal Potential etiopathogenic and molecular links between obesity and periodontitis
+
CRP
Visser et al. 1999 Elevated C-reactive protein levels in overweight and obese adults Longitudinal Potential etiopathogenic and molecular links between obesity and periodontitis
+
CRP
Cairo et al. 2008 Severe periodontitis in young adults is associated with sub-clinical atherosclerosis Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
Higashi et al. 2008 Periodontal infection is asso- ciated with endothelial dysfunction in healthy subjects and hypertensive patients Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
Paraskevas et al. 2008 A systematic review and meta-analyses on C-reactive protein in relation to periodontitis Systematic review + meta-analysis Potential etiopathogenic and molecular links between obesity and periodontitis
Nam et al. 2018 Salivary biomarkers of inflammation and oxidative stress in healthy adults Cross-sectional Potential etiopathogenic and molecular links between obesity and periodontitis
+
CRP
Dezayee et al. 2016 Saliva C-reactive protein as a biomarker of metabolic syndrome in diabetic patients Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
+
CRP
Keaney et al. 2003 Obesity and systemic oxidative stress: clinical correlates of oxidative stress in the Framingham Study Cross-sectional Potential etiopathogenic and molecular links between obesity and periodontitis
Virgolici et al. 2005 A comparative oxidative stress study – obesity with and without diabetes mellitus Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
Uzun et al. 2004 Changes in leptin, plasminogen activator factor and oxidative stress in morbidly obese patients following open and laparoscopic Swedish adjustable gastric banding Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
+
Oxidative stress
Cherian et al. 2019 Malondialdehyde as a Marker of Oxidative Stress in Periodontitis Patients Longitudinal Potential etiopathogenic and molecular links between obesity and periodontitis
+
Oxidative stress
Saita et al. 2016 Novel antioxidative nanotherapeutics in a rat periodontitis model: Reactive oxygen species scavenging by redox injectable gel suppresses alveolar bone resorption Longitudinal Potential etiopathogenic and molecular links between obesity and periodontitis
+
Oxidative stress
Takane et al. 2002 New biomarker evidence of oxidative DNA damage in whole saliva from clinically healthy and periodontally diseased individuals Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
+
Oxidative stress
da Silva et al. 2017 Genetic Factors and the Risk of Periodontitis Development: Findings from a Systematic Review Composed of 13 Studies of Meta-Analysis with 71,531 Participants Systematic review Potential etiopathogenic and molecular links between obesity and periodontitis
+
IL-1
Stadler et al. 2016 Gingival crevicular fluid levels of cytokines/chemokines in chronic periodontitis: A meta-analysis Systematic review Potential etiopathogenic and molecular links between obesity and periodontitis
+
IL-1
+
IL-8
Joshi et al. 2014 Association between obesity-related adipokines and colorectal cancer: A case-control study and meta-analysis Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
+
TNF-a and IL-6
+
Adiponectin
+
Resistin
Joshi et al. 2014 Obesity related adipokines and colorectal cancer: A review and meta-analysis Systematic review + meta-analysis Potential etiopathogenic and molecular links between obesity and periodontitis
+
TNF-a and IL-6
+
+
Resistin
Zimmermann et al. 2013 Local and circulating levels of adipocytokines in obese and normal weight individuals with chronic periodontitis Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
+
TNF-a and IL-6
Akram et al. 2017 Cytokine Profile in Chronic Periodontitis Patients with and without Obesity: A Systematic Review and Meta-Analysis Systematic review + meta-analysis Potential etiopathogenic and molecular links between obesity and periodontitis
+
IL-8
Akram et al. 2016 Resistin as potential biomarker for chronic periodontitis: A systematic review and meta-analysis. Systematic review + meta-analysis Potential etiopathogenic and molecular links between obesity and periodontitis
+
IL-8
+
Resistin
Yamaguchi et al. 2007 Adiponectin inhibits osteoclast formation stimulated by lipopolysaccharide from Actinobacillus actinomycetemcomitans Cross-sectional Potential etiopathogenic and molecular links between obesity and periodontitis
+
Adiponectin
Karthikeyan et al. 2007 Leptin levels in gingival crevicular fluid in periodontal health and disease Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
+
Leptin
Karthikeyan et al. 2007 Gingival crevicular fluid and serum leptin: their relationship to periodontal health and disease Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
+
Leptin
Gonullu et al. 2010 Association between adiponectin, resistin, insulin resistance, and colorectal tumors Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
+
Resistin
Suresh et al. 2018 Effect of nonsurgical periodontal therapy on plasma-reactive oxygen metabolite and gingival crevicular fluid resistin and serum resistin levels in obese and normal weight individuals with chronic periodontitis Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
+
Resistin
Salman et al. 2019 Study of changes of obesity-related inflammatory cytokines after laparoscopic sleeve gastrectomy Longitudinal Potential etiopathogenic and molecular links between obesity and periodontitis
Patel et al. 2014 Gingival crevicular fluid and serum levels of resistin in obese and non-obese subjects with and without periodontitis and association with single nucleotide polymorphism at -420 Case-control Potential etiopathogenic and molecular links between obesity and periodontitis
+
Resistin