Table 6-2. Change in Tasks Permitted and Required Supervision of Dental Hygienists by State, 1993 to 2000
State X-Rays Coronal Polish Apply Fluoride Apply Sealants Place Perio. Dressings Removal of Sutures Monitor N2O Admin N2O Admin Block Local Place Amalgam Sub-gingival Scaling Net Change
Alabama
0
0
0
0
0
0
0
-1
0
0
0
-1
Alaska
1
0
0
0
0
0
1
1
0
0
0
3
Arizona
0
0
0
0
1
2
1
1
1
1
0
7
Arkansas
1
1
1
0
1
1
1
1
1
0
1
9
California
3
0
2
0
0
0
1
0
0
0
2
8
Colorado
0
0
0
0
0
0
0
1
0
0
0
1
Connecticut
0
0
0
0
0
-3
0
0
0
0
0
-3
Delaware
0
0
0
0
0
0
3
3
3
3
0
12
District of Columbia
0
0
0
0
0
0
0
0
0
0
0
0
Florida
0
0
0
0
-2
0
0
0
0
1
0
-1
Georgia
0
0
0
0
0
0
0
0
0
1
0
1
Hawaii
0
0
0
0
0
0
0
0
1
1
0
2
Idaho
0
0
0
0
-1
0
1
1
0
0
0
1
Illinois
0
0
0
0
1
0
1
0
0
1
0
3
Indiana
0
0
0
0
0
0
-1
0
0
0
0
-1
Iowa
0
0
0
0
0
0
0
0
1
0
1
2
Kansas
0
0
0
0
0
0
0
0
0
0
0
0
Kentucky
0
-1
-1
-1
0
0
0
0
0
0
-1
-4
Louisiana
-1
0
-1
-1
0
-1
1
0
1
0
0
-2
Maine
0
0
0
0
1
0
-1
2
2
-1
0
3
Maryland
-1
0
2
0
0
1
0
0
0
0
0
2
Massachusetts
0
0
0
0
0
0
-1
0
0
0
0
-1
Michigan
0
0
0
0
0
0
1
0
0
0
1
2
Minnesota
0
0
0
0
0
0
0
1
1
0
0
2
Mississippi
0
0
0
0
0
0
0
0
0
0
0
0
Missouri
1
1
1
1
0
-1
0
0
0
1
1
5
Montana
0
0
0
0
0
0
2
3
1
0
0
6
Nebraska
0
0
0
0
0
0
1
0
2
1
0
4
Nevada
2
2
1
2
2
1
0
0
0
0
2
12
New Hampshire
0
0
0
1
1
0
0
0
0
0
0
2
New Jersey
0
0
0
0
0
0
0
0
0
0
0
0
New Mexico
0
0
0
0
4
4
0
2
1
0
0
11
New York
0
0
0
0
-1
0
0
0
0
0
0
-1
North Carolina
0
0
0
1
2
0
0
0
0
2
0
5
North Dakota
0
0
0
0
0
0
0
0
0
0
0
0
Ohio
1
1
1
1
0
0
0
0
0
0
1
5
Oklahoma
2
2
2
2
2
2
0
0
0
0
2
14
Oregon
0
0
0
0
0
0
2
0
0
0
0
2
Pennsylvania
2
2
2
2
0
0
0
0
0
0
2
10
Rhode Island
1
1
1
1
1
2
0
0
0
-1
1
7
South Carolina
-1
-1
-1
-2
-1
0
1
0
0
0
-1
-6
South Dakota
0
0
2
0
1
1
3
0
0
0
0
7
Tennessee
0
0
0
0
0
0
0
0
0
0
0
0
Texas
0
0
0
0
0
0
0
1
0
0
0
1
Utah
0
0
0
0
0
0
2
1
0
0
0
3
Vermont
0
0
0
0
0
0
1
0
1
0
0
2
Virginia
0
0
0
0
0
0
-1
0
0
-1
0
-2
Washington
1
0
0
0
0
0
0
0
0
0
0
1
West Virginia
0
0
0
0
1
0
0
0
0
0
0
1
Wisconsin
0
0
0
0
0
0
2
0
1
0
0
3
Wyoming
-1
-1
0
0
0
0
0
0
-1
0
-1
-4
Mean Change
0.22
0.14
0.24
0.14
0.25
0.18
0.41
0.33
0.31
0.18
0.22
2.61
Net Change
11
7
12
7
13
9
21
17
16
9
11
115