Effectiveness of conventional treatment using bulk-fill composite resin versus Atraumatic Restorative Treatments in primary and permanent dentition: a pragmatic randomized clinical trial

Table 1 Sample size calculation description

Tooth type	Surface	Survival Rate reported for ART (2 years)	Sample size	+20 % possible losses	+40 % operator-cluster effect
Permanent	Single surface	93	181	253	304
Permanent	Multiple surfaces	62	165	231	278
Primary	Single surface	93	181	253	304
Primary	Multiple surfaces	41	195	273	328
				Total	1, 214

ISSN: 1472-6831