Table I: Impaction Occurrence in Relation to Age Group.

Age Group	Impaction Occurence			Total
	Maxillary	Mandibular	Arches
1 (20-25 years)	75	212	173	460
	16.3%	46.1%	37.6%	100.0%
2 (26-30 years)	34	94	39	167
	20.4%	56.3%	23.4%	100.0%
3 (31-35 years)	18	41	14	73
	24.7%	56.2%	19.2%	100.0%
4 (36-40 years)	4	5	4	13
	30.8%	38.5%	30.8%	100.0%
Total	131	352	230	713
	18.4%	49.4%	32.3%	100.0%