TABLE 2. Baseline characteristics, according to treatment assignment and overall.
| CHARACTERISTIC | DBA* ONLY, n (%) |
RMGI† LINER, n (%) |
OVERALL, n (%) |
|---|---|---|---|
|
| |||
| Patient-Level Characteristics (n = 339) ‡ | |||
| Sleep bruxism | 48 (28) | 46 (27) | 94 (28) |
| Risk of experiencing future caries§ | |||
| Low | 75 (44) | 74 (44) | 149 (44) |
| Moderate | 62 (36) | 70 (42) | 132 (39) |
| High | 33 (19) | 24 (14) | 57 (17) |
|
| |||
| Tooth-Level Characteristics (n = 346) ¶ | |||
| Tooth type | |||
| Premolar | 65 (37) | 66 (39) | 131 (38) |
| Molar | 111 (63) | 104 (61) | 215 (62) |
|
Visual presence of crack in pulpal floor
dentin |
2 (1) | 2 (1) | 4 (1) |
| Gingival index | |||
| 0: Normal appearance, no bleeding | 136 (77) | 123 (72) | 259 (75) |
| 1: Mild inflammation; slight change in color; mild edema |
32 (18) | 42 (25) | 74 (21) |
| 2: Moderate inflammation; redness, edema and glazing; bleeding on probing |
8 (5) | 5 (3) | 13 (4) |
| 3: Severe inflammation; marked redness and edema; ulceration; spontaneous bleeding |
0 (0) | 0 (0) | 0 (0) |
| Class of lesion | |||
| I | 149 (85) | 141 (83) | 290 (84) |
| II | 27 (15) | 29 (17) | 56 (16) |
| Caries stage | |||
| 2: Visual change in enamel or cementum | 61 (35) | 64 (38) | 125 (36) |
| 4: Localized enamel breakdown, loss of cementum, dentin shadow |
88 (50) | 89 (52) | 177 (51) |
| 6: Distinct cavity with visible dentin, extensive lesion |
27 (15) | 17 (10) | 44 (13) |
| Radiographic visibility | |||
| Visible | 80 (45) | 81 (48) | 161 (47) |
| Not visible, but confirmed clinically | 95 (54) | 89 (52) | 184 (53) |
| Not visible | 1 (1) | 0 (0) | 1 (0) |
| Rank of dentin caries activity # | |||
| 1: Soft, serous | 31 (18) | 34 (20) | 65 (19) |
| 2: Soft, dry | 60 (34) | 55 (32) | 115 (33) |
| 3: Soft, dry, granular | 45 (26) | 49 (29) | 94 (27) |
| 4: Leathery and discolored | 19 (11) | 14 (8) | 33 (10) |
| 5: Firm, but discolored | 21 (12) | 18 (11) | 39 (11) |
| Extent of caries removal | |||
| Complete | 169 (96) | 164 (96) | 333 (96) |
| Partial | 7 (4) | 6 (4) | 13 (4) |
*
DBA: Dentin bonding agent.
†
RMGI: Resin-modified glass ionomer.
‡
Missing data for one randomly assigned patient who terminated her involvement in the study before receiving treatment.
§
No definitions as to risk of future caries were provided to the practitioner-investigators.
¶
Missing data for three randomly assigned participants who terminated their involvement in the study during the baseline visit.
#
According to scale described by Lehmann and colleagues.18