Table 2. Inheritance patterns for the 41 Chilean families with Amelogenesis Imperfecta according to the subtype of AI diagnosed.

INHERITANCE PATTERN	HPAI		HMAI		HCAI		HM/HPAI		HC/HPAI		TOTAL
	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%
Autosomal Dominant	5	83	5	26	1	20	2	25	2	67	15	37
Autosomal Recessive	0	0	14	74	4	80	4	50	1	33	23a	56
X-linked	0	0	0	0	0	0	0	0	0	0	0	0
Two possible patterns*	0	0	0	0	0	0	2	25	0	0	2	5
Undetermined	1	17	0	0	0	0	0	0	0	0	1	2
TOTAL families	6	100	19	100	5	100	8	100	3	100	41	100

^*Autosomal Recesive or Esporadic/Autosomal Dominant or X-linked;

^aFisher exact test P=0.006