PROCEDURE:
The same surgeon will be operating on all the patients. The choice of local anaesthetic for the first operation was randomised (by toss of a coin) and they were given the other local anesthetic for the second side.0.5 ml of 0.75% ropivacaine will be infiltrated intradermally as test solution.. The Numerical rating scale(NRS), visual analog scale (VAS) and Verbal descriptive scale(VDS) will be explained preoperatively and patients will be asked to notify as soon as the lip and tongue becomes numb. Desired area will be then anaesthetised and a standard surgical technique will be used for implant placement. In all cases, the incisions were mid-crestal with no vertical releasing incisions, and the incisions were extended mesially and distally to assure accessibility. The incisions were extended as needed to expose at least 5 mm of bone.
Vital parameters were monitored and pain score assessment were recorded before injecting the drugs, on injecting and same parameters were recorded after injection at intervals of 30 minutes,1,3,6,9 hours on the day of surgery(D1),first (D2) and second day after surgery(D3).
All the patients were assessed for level of comfort and depth of anaesthesia intra-operatively via VAS, VDS, NRS scales immediately after implant surgery, for both the agents to assess the depth of anesthesia achieved.