PSA block for maxillary molar's anesthesia - an obsolete technique?
Mukul PadhyeSavina GuptaGirish ChandiramaniRati Bali
Published in: Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics (2011)
Considering the difficulty in mastering the technique of PSA nerve block, and the possibility of more complications associated with it (compared with infiltration); it may not be necessary for anesthesia of maxillary molars.