Journal of Dental Specialities
  • Year: 2016
  • Volume: 4
  • Issue: 1

Effect of pre-stretching of surgical stainless steel wires on their ultimate load bearing strength-a prospective study

  • Author:
  • Pankaj Kukreja1,, Mohit Mangla2, Lily Rajput3, Kumar Rakshak Anand4, Sanjeev Kumar5, Heena Agarwal6
  • Total Page Count: 3
  • Page Number: 36 to 38

1Associate Professor, Department of Oral & Maxillofacial Surgery, I. T.S-Centre for Dental Studies and Research, Delhi-Meerut road, Muradnagar, Ghaziabad, Uttar Pradesh, India

2Postgraduate student, Department of Oral & Maxillofacial Surgery, I. T.S-Centre for Dental Studies and Research, Delhi-Meerut road, Muradnagar, Ghaziabad, Uttar Pradesh, India

3Postgraduate student, Department of Oral & Maxillofacial Surgery, I. T.S-Centre for Dental Studies and Research, Delhi-Meerut road, Muradnagar, Ghaziabad, Uttar Pradesh, India

4Senior Lecturer, Department of Oral & Maxillofacial Surgery, I. T.S-Centre for Dental Studies and Research, Delhi-Meerut road, Muradnagar, Ghaziabad, Uttar Pradesh, India

5Professor and Head, Department of Oral & Maxillofacial Surgery, I. T.S-Centre for Dental Studies and Research, Delhi-Meerut road, Muradnagar, Ghaziabad, Uttar Pradesh, India

6Postgraduate student, Department of Oral & Maxillofacial Surgery, I. T.S-Centre for Dental Studies and Research, Delhi-Meerut road, Muradnagar, Ghaziabad, Uttar Pradesh, India

*Address for Correspondence: Pankaj Kukreja, Associate Professor, Department of Oral & Maxillofacial Surgery, I. T.S-Centre for Dental Studies and Research, Delhi-Meerut road, Muradnagar, Ghaziabad, Uttar Pradesh, INDIA E-mail: drpankajkukreja@gmail.com

Online published on 20 September, 2016.

Abstract

To evaluate the effect of different percentage elongations on the ultimate tensile strength of 24 and 26 gauge stainless steel wires.

5 sets of wires were taken from a single spool of 26 gauge and 24 gauge obtained from a single manufacturer. They were pre-stretched to different percentages of 0%, 2.5%, 5%, 7.5%, 10% and 12.5%. The wires were cut to a standard length of 20 cm each and were subjected to tensile stretching forces at a uniform rate of 20mm/minute in Universal Testing Machine (UTM). The ultimate load was evaluated in each of the wires.

The mean ultimate load for 24 gauge wire was noted to be the highest (62.84± 0.38) in 10% elongation and the least (57.44± 0.32) in 12.5%. Whereas in 26 gauge, mean ultimate load was noted to be highest (62.64 ± 0.16) in 5% elongation and least (58.39 ± 0.26) in 10% elongation.

We can do pre-stretching of 24 gauge wire upto 10% for maximum ultimate strength and for 26 gauge upto 5% for maximum ultimate strength.

Keywords

Ultimate Tensile Strength, Universal Testing Machine, Stainless Steel Wire