Research Article| Volume 46, ISSUE 1, P76-78, 1993

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Pain-temperature relation in the application of local anaesthesia

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      One hundred and thirty-six patients attending for local anaesthetic procedures in the trigeminal area were assigned to four groups. Each group was injected with the anaesthetic solution at temperatures 10°C, 18°C, 37°C and 42°C, respectively. Measurement of pain during injection was made on a numeric scale. The results show a strong relationship between the temperature of the anaesthetic solution and the pain of the injection (p ≪ 0.001). This demonstrates that warning the anaesthetic solution significantly reduces the pain felt by the patient during injection, especially at 42°C.


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