抄録
The solution of 2 % lidocaine hydrochloride containing a vasoconstrictor with a 1.8 ml cartridge is now generally used as a local anesthetic in odontotherapy. The purpose of this study was to investigate the amount of anesthetic employed for conventional dental treatment.
Thirty-two patients (40 teeth), who underwent conventional dental care such as cavity preparation, pulpectomy, dental prophylactis, periodontal curratage and tooth extraction, underwent infiltration anesthesia using 1.0ml ORA® inj, cartridge (Showa Medical Co.)
The surgeon was asked the dosage in each case, and the effect of anesthesia after injection was judged by the patient's response whether the treatment was completed without any pain.
Each surgeon was asked their opinion about the 1.0ml cartridge used in this study.
The results were as follows
1. The mean amount of the injected anesthtics was 0.59±0.29m1 in 40 cases, and the manifestation of the effects of infiltration anesthesia was 97.5% at the time of 5 min. after each injection.
2. It was pointed out by operators that the size of the 1.0ml cartridge employed was easy to hold, however, the syring must be improved.
3. The side effects as unpleasant things were not reported.
From above findings, 1.0ml ORA® inj, cartridge contained sufficient amount of anesthtics for the infiltration anesthesia on the conventional dental treatment but not for the blocked anesthesia.
