TABLE 1—

Retention of Atraumatic Restorative Treatment Restorations at 1 and 2 Years

Surface Restored	Treated at Baseline, No.	Evaluated at 1 y, No.	Retained at 1 y No. (%)	Evaluated at 2 y, No.	Retained at 2 y, No. (%)
Mesio-occlusal	56	37	28 (75.7)	24	15 (62.5)
Central occlusal	57	39	31 (79.5)	29	21 (72.4)
Disto-occlusal	56	39	32 (82.1)	29	19 (65.5)
Buccodistal	55	22	18 (81.8)	14	9 (64.3)
Buccomesial	52	13	10 (76.9)	7	4 (57.1)
Linguomesial	42	17	15 (88.2)	11	7 (63.6)
Linguodistal	52	10	10 (100.0)	5	4 (80.0)
Total	370	177	144 (81.4)	119	79 (66.4)