Prevalence of First Permanent Molar Caries in and Its Relationship to the Dental Knowledge of 9–12-Year Olds from Jeddah, Kingdom of Saudi Arabia

Table 2

Caries status of first permanent molars in relation to knowledge of eruption time of the first permanent molars (𝑁=432).

Do you know eruption of first permanent molars?		All molars sound		One molar carious		Two molars carious		Three molars carious		All molars carious		Total
		𝑁	%	𝑁	%	𝑁	%	𝑁	%	𝑁	%	𝑁	%
Yes	18.%	26	32	16	20	20	25	13	16	5	7	80	100
No	81%	80	23	96	27	100	28	54	15	22	7	352	100
Total	100%	106	25	112	26	120	27	67	15	27	7	432	100

Chi-square (𝜒²)=4.17,𝑃>0.05.