A study on the dosage of dental local anesthestics-The clinical use of the ORA inj. cartridge 1.0ml.

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  • 局所麻酔の麻酔効果に関する研究　とくにオーラ注カートリッジ１．０ｍｌの臨床使用量について
  • —The clinical use of the ORA<SUP>®</SUP>inj. cartridge 1.0ml—
  • ―とくにオーラ注<SUP></SUP>カートリッジ1.0mlの臨床使用量について―

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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.<BR>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.)<BR>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.<BR>Each surgeon was asked their opinion about the 1.0ml cartridge used in this study.<BR>The results were as follows<BR>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.<BR>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.<BR>3. The side effects as unpleasant things were not reported.<BR>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.

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