Table 3.

Typical absolute error, in dependency of dental age for different situations.

Method	ML model	Dental age
		5	6	7	8	9	10	11	12	13
Demirjian	BRR	0.393	0.47	0.631	0.588	0.522	0.533	0.73	0.55	0.627
	DT	0.391	0.68	0.577	0.51	0.419	0.429	0.535	0.615	0.219
	KNN	0.32	0.498	0.634	0.506	0.475	0.558	0.549	0.595	0.347
Cameriere	BRR	0.425	0.474	0.538	0.455	0.448	0.482	0.673	0.555	–
	DT	0.318	0.382	0.462	0.472	0.426	0.462	0.575	0.617	0.298
	KNN	0.367	0.463	0.49	0.505	0.484	0.547	0.488	0.618	0.466