Age and Sequence of Permanent Teeth Eruption in Lebanese Children

Table 5

The age of eruption of the permanent teeth in different countries (age in years).

Tooth	Iraq [17]				Ghana [20]				Canada [20]				The United States [20]
	Maxilla		Mandibula		Maxilla		Mandibula		Maxilla		Mandibula		Maxilla		Mandibula
	Boy	Girl	Boy	Girl	Boy	Girl	Boy	Girl	Boy	Girl	Boy	Girl	Boy	Girl	Boy	Girl
1	7.4	7.4	6.2	6.2	6.3	6.0	5.3	5.1	7.2	6.5	6.1	5.5	7.4	7.2	6.54	6.25
2	8.7	8.3	7.6	7.5	7.5	7.3	6.1	6.4	8.3	7.95	7.3	6.9	8.6	8.2	7.70	7.34
3	11.5	10.9	10.6	10.0	10.4	9.5	10.0	8.9	11.4	10.6	10.7	9.6	11.69	10.98	10.79	9.86
4	10.0	10.0	10.6	10.2	9.5	9.0	9.8	9.2	10.5	10.05	10.8	10.2	10.40	10.03	10.82	10.18
5	10.9	10.8	11.4	11.0	10.5	10.0	10.6	10.3	11.3	11.2	11.7	11.1	11.8	10.88	11.47	10.89
6	6.1	6.0	5.7	5.7	5.0	5.0	4.9	4.5	6.1	5.4	6.2	5.8	6.40	6.22	6.21	5.94
7	12.2	11.8	11.8	11.4	10.9	10.9	10.8	10.5	12.3	12.3	12.0	11.5	12.68	12.27	12.12	11.66