Table 2. Dental treatment in 3161 patients with Crohn’s and in 3161 age, gender and geographically mached controls.

Mean number of procedures ±standard deviation. Significance of differences between patients and controls calculated with Mann-Whitney U test.

	All patients with Crohn’s and corresponding controls
Number of procedures within the following categories	Crohn’s	Controls	Ratio P/C	p-value
Clinical examination	2.13 ± 1.97	1.89 ± 1.78	1.13	0.000
Radiographic examination	0.49 ± 0.98	0.42 ± 0.94	1.17	0.004
Specific caries treatment	0.44 ± 0.90	0.43 ± 0.89	1.02	0.731
Periodontal treatment	1.12 ± 1.78	1.05 ± 1.68	1.07	0.022
Surgery	0.29 ± 1.13	0.22 ± 0.97	1.32	0.000
Implant installations	0.04 ± 0.38	0.06 ± 0.57	0.67	0.724
Endodontic treatment	0.19 ± 0.68	0.13 ± 0.53	1.46	0.000
Fillings in canines and incisors	0.35 ± 0.96	0.23 ± 0.76	1.52	0.000
Fillings in bicuspids and cuspids	1.19 ± 1.81	0.91 ± 1.55	1.31	0.000
Fixed dental prostheses	0.42 ± 1.68	0.32 ± 1.40	1.31	0.000
Removable prostheses	0.13 ± 1.19	0.08 ± 0.75	1.62	0.089
Implant supported prostheses	0.04 ± 0.40	0.03 ± 0.40	1.33	0.303
Total number of procedures	6.86 ± 7.13	5.79 ± 6.21	1.18	0.000