Table 2. Summary of combined sublingual and oral vestibular approach.

Authors	Technique	Ports & incision	Type	N	Complications
Benhijeb et al. (2009)	Combined (TOVAT)	5 mm at floor of mouth, two 3 mm at oral vestibule	Cadaver	5	–
Wilhem et al. (2011)	Combined (eMIT)	10 mm at floor of mouth, two 5 mm at oral vestibule	Human	8	1 permanent RLN injury, 1 transient RLN injury, 3 mental nerve injury, 2 conversion
Guo et al. (2014)	Combined	5 mm at floor of mouth, two 3 mm at oral vestibule	Cadaver	15	–
Wilhem et al. (2016)	Combined (eMIT)	10 mm at floor of mouth, two 5 mm at oral vestibule	Human	96	1 transient RLN injury, 1 permanent RLN injury, 15 mental nerve injury, 6 infection, 3 conversion