Parameter Specialists (n [%]) χ2 df P-valuea
Periodontists
(n = 65) 		Oral surgeons
(n = 121)
Use and knowledge of extraction socket morphology assessment classifications
Yes I know and use 28 (43.1%) 41 (33.9%) 3.988 2 0.136
Yes, I know, but do not use them 32 (49.2%) 76 (62.8%) 3.988 2 0.136
I do not know 5 (7.7%) 4 (3.3%) 3.988 2 0.136
An X-ray is usually performed before IDIP
Orthopantomogram (OPG) 1 (1.5%) 8 (6.6%) 4.166 2 0.125
Periapical radiographs 1 (1.5%) 0 4.166 2 0.125
CBCT 63 (96.9%) 113 (93.4%) 4.166 2 0.125

aStatistically significant at P < 0.05 (chi-square [χ2] test).
IDIP = immediate dental implant placement; n = number of respondents; df = degree of freedom.