Appendix 1: All 26 cases with statistics *Cases with significant differences between the two groups. The participants were given 6 treatment options to each case to choose from in the questionnaire: 1) o therapy indicated. 2) Wait 12 months, then new examination. 3) Postpone the orthograde re-treatment until the restoration/crown needs to be replaced. 4) Orthograde re-treatment at once. 5) Apicectomy. 6) Extraction of the tooth or other surgical procedure, except apicectomy. Explanation: EF members to the left of the tx-option General practitioners to the right of the tx-option EF members General practitioners 27 1
Case nr. 1 42 26 1 Case nr. 2 42 26 2 2
Case nr. 3*, p=0,026 42 26 3 Case nr. 4*, p=0,001 42 26 4 3
Case nr. 5 42 26 5 Case nr. 6*, p=0,001 42 26 6 4
Case nr. 7*, p=0,021 42 26 7 Case nr. 8*, p=0,001 42 26 8 5
Case nr. 9*, p=0,001 42 26 9 Case nr. 10*, p=0,003 42 26 10 6
Case nr. 11*, p=0,042 42 26 11 Case nr. 12 42 26 12 7
Case nr. 13 42 26 13 Case nr. 14 42 26 14 8
Case nr. 15 42 26 15 Case nr. 16 42 26 16 9
Case nr. 17 42 26 17 Case nr. 18*, p=0,006 42 26 18 10
Case nr. 19*, p=0,001 42 26 19 Case nr. 20 42 26 20 11
Case nr. 21*, p=0,001 42 26 21 Case nr. 22*, p=0,004 42 26 22 12
Case nr. 23 42 26 23 Case nr. 24 42 26 24 13
Case nr. 25*, p=0,014 42 26 25 Case nr. 26 42 26 26 14