Table 4 Spearman’s rho correlation coefficients (r) for questions in section B (forceps and surgical extractions)

B2. I feel confident that I could extract an upper single-rooted tooth with an intact crown, in an otherwise intact dentition

1.000

–

–

–

–

–

B3. I feel confident that I could remove visible retained roots of an upper left first molar with elevators or forceps

0.800**

1.000

–

–

–

–

B4a. I feel confident to assess and perform the surgical management of a failed extraction (e.g. a lower second molar) necessitating the raising of a mucoperiosteal flap

0.334*

0.322*

1.000

–

–

–

B4b. I feel confident to assess and perform the surgical management of a failed extraction (e.g. a lower second molar) necessitating Bone removal

0.288

0.326*

0.770**

1.000

–

–

B4c. I feel confident to assess and perform the surgical management of a failed extraction (e.g. a lower second molar) necessitating sectioning the tooth to facilitate elevation of the roots

0.361*

0.428**

0.786**

0.788**

1.000

–

B4d. I feel confident to assess and perform the surgical management of a failed extraction (e.g. a lower second molar) necessitating Wound closure using appropriate suture materials

0.615**

0.623**

0.683**

0.658**

0.721**

1.000