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. 2021 Oct 19;93(4):481–492. doi: 10.1002/JPER.21-0010

TABLE 3.

United States versus European respondents’ considerations concerning diagnostic criteria for peri‐implantitis

Diagnostic criteria a Who? 1 b 2 3 4 5 Mean ± SD, P value
Clinical probing U.S. 1.8% 7.8% 19.8% 25.8% 44.8% 4.04 ± 1.060
Europe 0.0% 0.0% 6.1% 24.2% 69.7%

4.64 ± 0.597

 < 0.001

Radiographic bone loss U.S. 0.0% 1.6% 2.1% 17.1% 79.3% 4.74 ± 0.572
Europe 0.0% 0.0% 1.0% 20.2% 78.8%

4.78 ± 0.442

0.551

Presence of bleeding U.S. 1.0% 4.9% 18.9% 26.4% 48.7% 4.17 ± 0.970
Europe 0.0% 5.1% 15.2% 25.3% 54.5%

4.29 ± 0.906

0.249

Presence of suppuration U.S. 0.3% 0.8% 7.3% 17.9% 73.8% 4.64 ± 0.674
Europe 0.0% 0.0% 3.0% 21.2% 75.8%

4.73 ± 0.511

0.172

Implant exposure and gum recession U.S. 1.6% 6.8% 20.3% 33.6% 37.8% 3.99 ± 0.997
Europe 7.1% 11.1% 30.3% 24.2% 27.3%

3.54 ± 1.206

0.001

Legend:.

a

No index was computed for the diagnostic criteria responses because Cronbach alpha is 0.453.

b

The answers to the question “How important are the following criteria to you when you make a diagnosis of peri‐implantitis?” ranged from “1” = “not at all” to “5” = “very much”.