Association between Dental Caries and Obesity in Children and Young People: A Narrative Review

Table 1

Summary of the included studies.

Investigated dentition	Association between obesity and dental caries. Author (country, sample size, age in years)
	Positive	Inverse	No relationship	Positive in two directions
Primary	Davidson et al. [17] (Canada, 235, 2 to 6)	Soares et al. [14] (Brazil, 285, 3 to 5); Elkhodary et al. [18] (KSA, 820, 3 to 6); Bafti et al. [19] (Iran, 1482, 3 to 6); Liang et al. [20] (China, 32461, 7 to 9)	de jong-lenters et al. [21] (Netherlands, 230, 5 to 8); Paisi et al. [22] (UK, 347, 4 to 6)	Aluckal et al. [23] (India, 433, 2 to 6)
Primary and permanent	Qomsan et al. [24] (KSA, 386, 6 to 12)	Quadri et al. [12] (KSA, 360, 6 to 15); Farsi et al. [25] and Schwendicke et al. [26, 27] (KSA, 915, 7 to 10); Guo et al. [28] (China, 744, 8 to 8.5)	Mitrakul et al. [25] (Thailand, 100, 6 to 12); da Silva et al. [30] (Brazil, 237, 3 to 15); Araujo et al. [31] (Brazil, 313, 8 to 10); Münevveroğlu et al. [16] (Turkey, 856, 6 to 12); Almerich-Torres et al. [32] (Spain, 1326, 6/12/15)	—
Permanent	Li et al. [33] (Hong Kong, 282, 12/15/18); Qadri et al. [34] (Germany, 694, 9 to 12); Basha et al. [35] (India, 785, 13 +3 years)	Bhayat et al. [36] (KSA, 402, 12 to 14); Chauhan et al. [37] (India, 275, 6 to 15); Alghamdi and Almahdy et al. [38] (KSA, 610, 14 to 16); Fernández et al. [39] (Brazil, 1210, 8 to 12)	Kottayi et al. [13] (India, 2000, 12 to 15); Kumar et al. [15] (India, 1092, 11 to 14)	—

Case-control study. Longitudinal study. The rest are cross-sectional studies.