TITLE:
Bevel Tip Deformation in New and Used Dental Needles
AUTHORS:
César Gaitán- Fonseca, Denise Romo- Castillo, Bernardino Cerda- Cristerna, David Masuoka, Amaury Pozos- Guillén
KEYWORDS:
Bevel Tip, Deformation, Dentistry, Needles
JOURNAL NAME:
Microscopy Research,
Vol.3 No.1,
January
14,
2015
ABSTRACT: 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