Table 4.

Caries prevalence studies for 12-year olds and computed SiC index/DMFT ratios

Authors (years)	Location	Caries prevalence (%)	Mean DMFT	SiC	SiC/DMFT ratio
Okeigbemen (2004)[16]	Benin, Nigeria	33.0	0.51	—	—
Adekoya-Sofowora et al. (2006)[17]	Ife, Nigeria	13.9	0.14	—	—
Agbelusi and Jeboda (2006)[18]	Lagos, Nigeria	24.6	0.46	—	—
Braimoh et al. (2014)[19]	Port Harcourt,	15.4	0.21	—	—
	Nigeria
Akaji et al. (2021)[15]	Enugu, Nigeria	54.4	1.17 ± 0.27	2.57	2.2
Cypriano et al. (2008)[24]	Brazil	93.1	5.54	9.62	1.7
Nurelhuda et al. (2009)[25]	Sudan	30.5	0.42	1.4	3.3
Shafie Zadeh et al. (2011)[26]	Tehran, Iran	64.6	1.36 ± 0.86	—	—
Gokalp et al. (2010)[27]	Turkey	61.1	1.9 ± 2.2	4.33	2.3
Vizzotto et al. (2013)[28]	Brazil	23.0	0.84 ± 1.31	—	—
Bhayat and Ahmad (2014)[29]	Saudi Arabia	57.2	1.53 ± 1.88	3.63 ± 1.66	2.4
Ndanu et al. (2015)[30]	Accra, Ghana	17.4	1.138 ± 0.476	—	—
Elías-Boneta et al. (2016)[31]	Puerto Rico	69.0	2.5 ± 0.12	5.6 ± 0.12	2.2
Poudyal et al. (2015)[32]	India	—	1.45	2.85	1.9
Andegiorgish et al. (2017)[33]	Eritrea	78.0	2.50 ± 2.21	4.97 ± 1.9	1.9
Riatto et al. (2018)[34]	Spain	—	1.6 ± 2.6	3.2	2.0