Bevel Tip Deformation in New and Used Dental Needles

• 作者: Amaury Pozos- Guillén Bernardino Cerda- Cristerna César Gaitán- Fonseca David Masuoka Denise Romo- Castillo
• 来源期刊: 显微镜研究(英文)
• 学科: 医学
• 关键词: Bevel TIP DEFORMATION DENTISTRY NEEDLES
• 年，卷（期）: 2015,（1）
• 页码范围: 1-5
• 页数: 5页
• 分类号: R73

摘要

Objectives: To evaluate quantitatively deformation of the angle of the horizontal plane of the bevel tip in new dental needles and in dental needles used in clinical procedures. Material and Methods: A cross-sectional study was performed with 360 dental needles from four different manufacturers. The needles were divided into four groups (90 per group): Group 1, Monoject;Group 2, DLP;Group 3, Badiject, and Group 4, Zeyco. The new and used needles were evaluated by scanning electron microscopy to evaluate quantitatively the deformation on the bevel. Results: All groups showed a significantly statistical difference between new needles and needles used for one or two injections (P