Table 2.
Number (percentage) of RCT in which a rubber dam is used, by characteristic (n=524)
| Characteristic (n) | Percentage of RCT in which a rubber dam is used | |||
|---|---|---|---|---|
| None | 1–50% | 51–99% | 100% | |
| Overall | 80 (15%) | 90 (17%) | 125 (24%) | 229 (44%) |
| DPBRN Region * | ||||
| Alabama/Mississippi (196) | 50 (26%) | 48 (25%) | 52 (27%) | 46 (23%) |
| Florida/Georgia (117) | 13 (11%) | 18 (15%) | 29 (25%) | 57 (49%) |
| Midwest or Northeast (69) | 4 (6%) | 6 (9%) | 18 (26%) | 41 (59%) |
| Other Southeast (39) | 3 (8%) | 5 (13%) | 9 (23%) | 22 (56%) |
| PDA or other West (47) | 0 (0%) | 0 (0%) | 2 (4%) | 45 (96%) |
| Scandinavia (56) | 10 (18%) | 13 (23%) | 15 (27%) | 18 (32%) |
| Type of Practice * | ||||
| Solo private practice (263) | 42 (16%) | 58 (22%) | 69 (26%) | 94 (36%) |
| Group private practice, but not HPDG or PDA (156) | 34 (22%) | 25 (16%) | 37 (24%) | 60 (38%) |
| HPDG or PDA (72) | 0 (0%) | 1 (1%) | 10 (14%) | 61 (85%) |
| Public health practice, community health center, or publicly-funded clinic (26) | 2 (8%) | 5 (19%) | 8 (31%) | 11 (42%) |
| Other type (7) | 2 (29%) | 1 (14%) | 1 (14%) | 3 (43%) |
| Year of dental school graduation * | ||||
| Before 1970 (14) | 7 (50%) | 4 (29%) | 0 (0%) | 3 (21%) |
| 1970–1979 (132) | 22 (17%) | 19 (14%) | 35 (27%) | 56 (42%) |
| 1980–1989 (176) | 25 (14%) | 34 (19%) | 44 (25%) | 73 (41%) |
| 1990–1999 (111) | 15 (14%) | 24 (22%) | 24 (22%) | 48 (43%) |
| 2000 or later (91) | 11 (12%) | 9 (10%) | 22 (24%) | 49 (54%) |
| Gender of dentist ns | ||||
| Male (408) | 63 (15%) | 72 (18%) | 97 (24%) | 176 (43%) |
| Female (116) | 17 (15%) | 18 (16%) | 28 (24%) | 53 (46%) |
| Race of dentist ns | ||||
| Non-white (54) | 7 (13%) | 6 (11%) | 14 (26%) | 27 (50%) |
| White/Caucasian (435) | 70 (16%) | 77 (18%) | 107 (25%) | 181 (42%) |
| Missing (35) | 3 (9%) | 7 (20%) | 4 (11%) | 21 (60%) |
| Hispanic/Latino ethnicity of dentistns | ||||
| Hispanic (15) | 1 (7%) | 2 (13%) | 6 (40%) | 6 (40%) |
| White/Caucasian (413) | 63 (15%) | 73 (18%) | 98 (24%) | 179 (43%) |
| Missing (96) | 16 (17%) | (16%) 15 | 21 (22%) | 44 (46%) |
*
p<0.05, the association between the characteristic and percentage of root canal treatments in which the dentist uses a rubber dam is statistically significant. Missing data were excluded before the statistical test was done. These variables had no missing data: DPBRN region, type of practice, type of dentist, year of dental school graduation, gender of dentist. This table is limited to the 524 general dentists who reported doing at least some root canal treatment and who reported the percentage of root canal treatments in which they use a rubber dam.
ns
not statistically significant
HPDG: HealthPartners Dental Group
PDA: Permanente Dental Associates