Table 2.

FTIRI analysis of Brtl/+ and WT molars (all values are dimensionless ratios).

	Min/Mat	CO3/PO4	XLR	XST	HPO4
2 months
First molar crown
WT	10.6 ± 1.0	0.0052 ± 0.0003	4.06 ± 0.20	1.184 ± 0.05	0.44 ± 0.04
BRTL/+	11.0 ± 2.0	0.0051 ± 0.0007	4.07 ± 0.37	1.13 ± 0.03	0.48 ± 0.03
P	NS	NS	NS	0.06	0.07
Second molar crown
WT	10.3 ± 1.0	0.0050 ± 0.0004	4.1 ± 0.29	1.171 ± 0.06	0.450 ± 0.03
BRTL/+	10.6 ± 3.0	0.0050 ± 0.0004	4.2 ± 0.37	1.133 ± 0.04	0.469 ± 0.04
P	NS	NS	NS	NS	NS
First molar mesial root
WT	7.99 ± 0.94	0.0053 ± 0.0004	3.97 ± 0.19	1.175 ± 0.041	0.46 ± 0.03
BRTL/+	7.28 ± 1.54	0.0047 ± 0.0007	4.21 ± 0.39	1.14 ± 0.025	0.53 ± 0.05
P	NS	NS	0.08	NS	0.009
Second molar distal root
WT	6.78 ± 1.0	0.0048 ± 0.0004	4.38 ± 0.89	1.15 ± 0.076	0.51 ± .04
BRTL/+	6.54 ± 0.75	0.0048 ± 0.0006	4.97 ± 0.85	1.09 ± 0.087	0.61 ± 0.05
P	NS	NS	NS	0.10	0.001
6 months
First molar crown
WT	10.9 ± 2.2	0.0066 ± 0.0005	4.1 ± 0.3	1.1 ± 0.02	0.45 ± 0.02
Brtl/+	13.0 ± 2.6	0.0064 ± 0.0008	4.4 ± 0.7	1.1 ± 0.01	0.49 ± 0.01
P	NS	NS	NS	NS	0.015
Second molar crown
WT	9.0 ± 0.2	0.0063 ± 0.0006	4.1 ± 0.2	1.1 ± 0.01	0.48 ± 0.04
Brtl/+	9.8 ± 1.5	0.0064 ± 0.0007	4.2 ± 1.1	1.06 ± 0.51	0.51 ± 0.05
P	NS	NS	NS	NS	NS
Second molar mesial root
WT	7.1 ± 0.8	0.0062 ± 0.0003	4.2 ± 0.3	1.08 ± 0.03	0.53 ± 0.02
Brtl/+	6.7 ± 1.5	0.0053 ± 0.0004	4.4 ± 0.4	1.09 ± 0.02	0.61 ± 0.15
P	NS	0.0009	NS	NS	NS
Second molar distal root
WT	7.9 ± 0.5	0.0065 ± 0.0004	4.5 ± 0.3	1.08 ± 0.03	0.49 ± 0.03
Brtl/+	7.1 ± 1.5	0.0065 ± 0.0006	4.6 ± 0.4	1.07 ± 0.03	0.59 ± 0.09
P	NS	NS	NS	NS	0.07