Table 2.

Descriptive statistics and estimated survival rate for the variables studied

	Number of healthy teeth	Number of falling teeth	Tooth number	Time (months)	Estimate of cumulative proportion of survival
Secondary caries Bravo	3957 (99.92)	3 (0.08)	15	48	0.999
			14	48
			35	84	0.999
Crack Small acceptable	3959 (99.97)	1 (0.03)	35	24	1.000
Crack Large	3957 (99.92)	3 (0.08)	35	84	0.999
			45	96	0.998
			45	108	0.997
Fracture Extensive	3959 (99.97)	1 (0.03)	45	96	0.999
Retention of the veneer ReBonded	3955 (99.87)	5 (0.13)	34	12	0.999
			45	12
			45	12
			15	48	0.998
			14	48
Retention of the veneer lost	3957 (99.92)	3 (0.08)	35	84	0.999
			45	96	0.998
			45	108	0.997