“…The incidence has decreased over the years due to improved techniques and the use of different instruments. However, most recent series still report postoperative persistent hypoaesthesia of the inferior alveolar nerve in more than 10% of the patients, even up to 48% (Takeuchi et al, 1994;Scheerlinck et al, 1994;Fridrich et al, 1995;Fujioka et al, 1998;Pratt et al, 1996;Blomqvist et al, 1998;Westermark et al, 1998a, b;Ylikontiola et al, 1998;SchultzeMosgau et al, 2001;Panula et al, 2001;Becelli et al, 2002;Al-Bishri et al, 2004).…”