@article{oai:mdu.repo.nii.ac.jp:00000784,
 author = {太田, 慎吾 and 塚田, 久美子 and 小柴, 慶一 and 穂坂, 一夫 and 小笠原, 正 and 渡辺, 達夫 and 笠原, 浩},
 issue = {1},
 journal = {松本歯学},
 month = {Apr},
 note = {application/pdf, Particularly in developmentally disabled individuals and young infants, it is very important to reduce the pain of local anesthetic injection to the greatest possible extent, and it is reported that such pain might be reduced by using topical anesthetics and nitrous oxide. However, a less painful injection technique is still needed for anxious dental patients. The authors investigated the effect of needle diameter on the perceived pain levels in 50 healthy adult volunteers. The 27-G (diameter, 0.42mm) needle which is typically used in dental treatment was compared with a 31-G (0.28mm) needle. The subjects were asked to indicate the subjective pain level using a visual analogue scale (VAS: 0～100) at the two time points of needle penetration into the oral mucosa and of infiltration into the submucosa tissue. The results indicated that, although the 31-G needle caused less subjective pain than the 27-G needle, the difference was not significant.},
 pages = {14--18},
 title = {局所麻酔注射の疼痛軽減に関する研究 : 歯科用注射針の太さと注射時疼痛との関連},
 volume = {23},
 year = {1997}
}