Table 1.

Description of studies included in the review

Study	Year of publication	Diagnostic evidence	Follow-up	Number of patients treated
Studies regarding risk factors associated with IANI
Xu et al. [22]	2013	Patient's reporting + Neurosensory testing	6 months	318
Kim et al. [23]	2012	Patient's reporting + Neurosensory testing + Radiographic	2 years	12,842
Jerjes et al. [47]	2010	Patient's reporting	2 years	3236
Kjolle et al. [48]	2013	Patient's reporting + Neurosensory testing	5 years	884
Guerrouani et al. [49]	2013	Patient's reporting	6 months	2112
Studies regarding the influence of radiographic techniques before M3 extraction
Smith [21]	2013	Patient's reporting + Neurosensory testing	2 years	1000
Neves et al. [33]	2012	Patient's reporting + Neurosensory testing	6 months	33
Nakayama et al. [35]	2009	Patient's reporting	Over 6 months	1539
Hasegawa et al. [36]	2013	Patient's reporting + Neurosensory testing	6 months	295
Ghaeminia et al. [43]	2009	Patient's reporting + Neurosensory testing	6 months	40
Studies regarding alternative methods of mandibular M3 extraction
Landi et al. [50]	2010	Patient's reporting + Radiographic	2 years	9
Wang et al. [52]	2012	Patient's reporting+ Radiographic	-	40
Dolanmaz et al. [56]	2009	Patient's reporting + Radiographic	4 years	43
Study regarding recovery of IANI
Bhat et al. [43]	2012	Patient's reporting + Neurosensory testing	6 months	400

IANI = inferior alveolar nerve injury; M3 = third molar.