Parameter Specialists (n [%]) χ2 df P-value
Periodontists
(n = 65)
Oral surgeons
(n = 121)
Evaluation of the aesthetic zone
The amount of apical bone beyond the extraction socket 31 (47.7%) 49 (40.5%) 0.893 1 0.345
The quantitative and qualitative indicators of the soft tissues 63 (96.9%) 99 (81.8%) 8.585 1 0.003a
The morphology of the bone walls of the extraction socket 58 (89.2%) 106 (87.6%) 0.107 1 0.743
Evaluation of non-aesthetic zone
A wide septum of extraction socket 56 (86.2%) 94 (77.7%) 1.943 1 0.163
The amount of apical bone beyond the extraction socket 55 (84.6%) 92 (76%) 1.879 1 0.17
The quantitative and qualitative indicators of the soft tissues 39 (60%) 51 (42.1%) 5.396 1 0.02a
The morphology of the bone walls of the extraction socket 55 (84.6%) 102 (84.3%) 0.003 1 0.995
IDIP into infected extraction socket with chronic periapical infections
Yes 38 (58.5%) 101 (83.5%) 14.006 1 0.000a
No 27 (41.5%) 20 (16.5%) 14.006 1 0.000a
IDIP into infected extraction socket when suppuration is observed from the periodontal pocket of one tooth
Yes 6 (9.2%) 31 (25.6%) 7.127 1 0.002a
No 59 (90.8%) 90 (74.4%) 7.127 1 0.007a

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