1.Papapanou PN, Sanz M, Buduneli N, Dietrich T, Feres M, Fine DH, et al. Periodontitis: Consensus report of workgroup 2 of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions. J Clin Periodontol. 2018;45 Suppl 20:S162-s70
3.Abas D, Eqbal G. Prevalence of obesity among adolescents at secondary schools in Kirkuk city. Iraqi National Journal of Nursing Specialties. 2018;26:96-101.
https://doi.org/10.58897/injns.v26i2.175.
4.Ng M, Fleming T, Robinson M, Thomson B, Graetz N, Margono C, et al. Global, regional, and national prevalence of overweight and obesity in children and adults during 1980-2013: a systematic analysis for the Global Burden of Disease Study 2013. Lancet. 2014;384(9945):766-81
https://doi.org/10.1016/S0140-6736(14)60460-8.
6.Martinez-Herrera M, Silvestre-Rangil J, Silvestre FJ. Association between obesity and periodontal disease. A systematic review of epidemiological studies and controlled clinical trials. Med Oral Patol Oral Cir Bucal. 2017;22(6):e708-e15.
https://doi.org/10.4317/medoral.21786.
7.Nascimento GG, Leite FR, Do LG, Peres KG, Correa MB, Demarco FF, et al. Is weight gain associated with the incidence of periodontitis? A systematic review and meta-analysis. J Clin Periodontol. 2015;42(6):495-505.
https://doi.org/10.1111/jcpe.12417.
8.Pataro AL, Costa FO, Cortelli SC, Cortelli JR, Abreu MH, Costa JE. Association between severity of body mass index and periodontal condition in women. Clin Oral Investig. 2012;16(3):727-34
https://doi.org/10.1007/s00784-011-0554-7.
9.Gul S, Imran N, Al-Sharqi A, Abdulkareem A. Association of overweight/obesity with the severity of periodontitis using BPE code in an iraqi population. Clinical Epidemiology and Global Health. 2020;9
https://doi.org/10.1016/j.cegh.2020.06.005.
10.Ismail H, Mahmood M. Effect of melatonin supplementation on the gingival health and lipid profiles in obese periodontitis patients. Journal of Baghdad College of Dentistry. 2022;34:51-9
https://doi.org/10.26477/jbcd.v34i1.3092.
11.Jepsen S, Suvan J, Deschner J. The association of periodontal diseases with metabolic syndrome and obesity. Periodontol 2000. 2020;83(1):125-53.
https://doi.org/10.1111/prd.12326.
14.Paredes-Sánchez E, Montiel-Company JM, Iranzo-Cortés JE, Almerich-Torres T, Bellot-Arcís C, Almerich-Silla JM. Meta-Analysis of the Use of 8-OHdG in Saliva as a Marker of Periodontal Disease. Dis Markers. 2018;2018:7916578.
https://doi.org/10.1155/2018/7916578.
15.Buczko P, Zalewska A, Szarmach I. Saliva and oxidative stress in oral cavity and in some systemic disorders. J Physiol Pharmacol. 2015;66(1):3-9..
17.Henry LG, McKenzie RM, Robles A, Fletcher HM. Oxidative stress resistance in Porphyromonas gingivalis. Future Microbiol. 2012;7(4):497-512.
https://doi.org/10.2217/fmb.12.17.
18.Tenovuo J, Lagerlof F. Textbook of clinical cardiology. 2nd ed. A T, O. F, editors. Munksgaard Copenhagen: Munksgaard Copenhagen; 1994. 17-43 p..
20.Tonetti MS, Greenwell H, Kornman KS. Staging and grading of periodontitis: Framework and proposal of a new classification and case definition. J Clin Periodontol. 2018;45 Suppl 20:S149-s61
https://doi.org/10.1111/jcpe.12945.
21.Chapple ILC, Mealey BL, Van Dyke TE, Bartold PM, Dommisch H, Eickholz P, et al. Periodontal health and gingival diseases and conditions on an intact and a reduced periodontium: Consensus report of workgroup 1 of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions. J Periodontol. 2018;89 Suppl 1:S74-s84.
22.Podzimek S, Vondrackova L, Duskova J, Janatova T, Broukal Z. Salivary Markers for Periodontal and General Diseases. Dis Markers. 2016;2016:9179632.
https://doi.org/10.1155/2016/9179632.
23.Almerich-Silla JM, Montiel-Company JM, Pastor S, Serrano F, Puig-Silla M, Dasí F. Oxidative Stress Parameters in Saliva and Its Association with Periodontal Disease and Types of Bacteria. Dis Markers. 2015;2015:653537.
https://doi.org/10.1155/2015/653537.
24.Sezer U, Ciçek Y, Canakçi CF. Increased salivary levels of 8-hydroxydeoxyguanosine may be a marker for disease activity for periodontitis. Dis Markers. 2012;32(3):165-72.
https://doi.org/10.1155/2012/215430.
25.Zamora-Perez AL, Ortiz-García YM, Lazalde-Ramos BP, Guerrero-Velázquez C, Gómez-Meda BC, Ramírez-Aguilar M, et al. Increased micronuclei and nuclear abnormalities in buccal mucosa and oxidative damage in saliva from patients with chronic and aggressive periodontal diseases. J Periodontal Res. 2015;50(1):28-36.
https://doi.org/10.1111/jre.12175.
26.Miricescu D, Totan A, Calenic B, Mocanu B, Didilescu A, Mohora M, et al. Salivary biomarkers: relationship between oxidative stress and alveolar bone loss in chronic periodontitis. Acta Odontol Scand. 2014;72(1):42-7.
https://doi.org/10.3109/00016357.2013.795659.
29.Takane M, Sugano N, Ezawa T, Uchiyama T, Ito K. A marker of oxidative stress in saliva: association with periodontally-involved teeth of a hopeless prognosis. J Oral Sci. 2005;47(1):53-7
https://doi.org/10.2334/josnusd.47.53.
30.Savini I, Catani MV, Evangelista D, Gasperi V, Avigliano L. Obesity-associated oxidative stress: strategies finalized to improve redox state. Int J Mol Sci. 2013;14(5):10497-538
https://doi.org/10.3390/ijms140510497.
31.Higuchi M, Dusting GJ, Peshavariya H, Jiang F, Hsiao ST, Chan EC, et al. Differentiation of human adipose-derived stem cells into fat involves reactive oxygen species and Forkhead box O1 mediated upregulation of antioxidant enzymes. Stem Cells Dev. 2013;22(6):878-88
https://doi.org/10.1089/scd.2012.0306.
33.Zalewska A, Kossakowska A, Taranta-Janusz K, Zięba S, Fejfer K, Salamonowicz M, et al. Dysfunction of Salivary Glands, Disturbances in Salivary Antioxidants and Increased Oxidative Damage in Saliva of Overweight and Obese Adolescents. J Clin Med. 2020;9(2)
https://doi.org/10.3390/jcm9020548.
35.Elwakkad A, Hassan NE, Sibaii H, Zayat Se, Sherif L, Hameed E-R-A, et al. Amany Elwakkad, Nayera Elmorsi Hassan, Hiba Sibaii, Salwa el Zayat, Lobna Sherif, Enas-R-Abdel Hameed and Azza-Abdel Shaheed, 2011. Relationship Between Obesity and 8-hydroxy-2-deoxy Guanosine as an Oxidative Marker in Obese Adolescents of Giza. Journal of Medical Sciences, 11: 231-235. 2011
https://doi.org/10.3923/jms.2011.231.235.
37.Öngöz Dede F, Bozkurt Doğan Ş, Ballı U, Avcı B, Durmuşlar MC. The effect of initial periodontal treatment on plasma, gingival crevicular fluid and salivary levels of 8-hydroxy-deoxyguanosine in obesity. Arch Oral Biol. 2016;62:80-5.
https://doi.org/10.1016/j.archoralbio.2015.11.014.
38.Canakçi CF, Canakçi V, Tatar A, Eltas A, Sezer U, Ciçek Y, et al. Increased salivary level of 8-hydroxydeoxyguanosine is a marker of premature oxidative mitochondrial DNA damage in gingival tissue of patients with periodontitis. Arch Immunol Ther Exp (Warsz). 2009;57(3):205-11
https://doi.org/10.1007/s00005-009-0026-9.