Edorium Journal of

Dentistry

 
     
Letter to the Editor
 
Roxolid: A milestone in implant dentistry
Ashutosh Gupta
Sr. Lecturer, Department of Prosthodontics, Dental College, Azamgarh, Uttar Pradesh, India

Article ID: 100026D01AG2017
doi:10.5348/D01-2017-26-LE-6

Address correspondence to:
Ashutosh Gupta
5/62, Vikas Khand, Gomti Nagar
Lucknow, Uttar Pradesh
India

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Gupta A. Roxolid: A milestone in implant dentistry. Edorium J Dent 2017;4:36–37.


To the Editors,

Roxolid (Straumann, Switzerland) is a high performance implant biomaterial that offers higher strength than cpTi (commercially pure titanium). It is a homogenous titanium and zirconium alloy containing about 13–18% zirconium. According to Straumann

"The combination of enhanced strength and osseointegration could open the door for a new generation of smaller, safer implants, which would be particularly advantageous in situations where there is limited space between teeth. A further potential advantage could be the use in thin bone (narrow bone ridge), where wider implants would necessitate bone augmentation/grafting procedures."

Roxolid is thus a new material for dental implants. Preclinical study results presented at 23rd annual meeting of Academy of Osseointegration (AO), Boston, February 2008 and at the 17th Annual scientific meeting of the European Association for osseointegration, Warsaw, showed that Roxolid integrated with bone better than pure titanium [1][2][3]. Analysis of the fatigue behavior indicated that the endurance level of Roxolid implants was 13–42% higher compared to titanium implants with the same length, diameter and surface treatment. The ultimate tensile strength of Roxolid is significantly higher than titanium [4]. Thus a narrow diameter implant is possible with enhanced property compared to pure titanium. A recent study by barter et al. [5] showed that the mean change in the functional bone level two years after loading Roxolid implant was –0.33±0.54 mm with pocket depth ranging from 2.21–2.89 mm. Thus the new implant was safe and reliable.

Although Roxolid provides more treatment options with small diameter and shorter implants, but force distribution to the surrounding bone with smaller implant is still unclear. Also literature is lacking regarding the strength of implant at abutment- fixture interface; the most fragile part of implant. A recent report by karl et al. [6] showed Roxolid implant fracture just apical to the abutment screw, when implant was placed at maxillary canine area to support a removable partial denture. Hence an exhaustive research is warranted before considering it as a breakthrough in implant dentistry.


Keywords: Implant biomaterial, Osseointegration, SLActive, Roxolid


REFERENCES
  1. Gottlow J, et al. Preclinical data presented at the 23rd annual meeting of the academy of osseointegration (AO), Boston, February 2008, and at the 17th annual scientific meeting of the European association for osseointegration (EAO), Warsaw, September 2008.    Back to citation no. 1
  2. Gottlow J. Make a difference with the next generation implant properties. European association for osseointegration 17th annual scientific meeting, Warsaw, Poland, 18-20 September 2008.    Back to citation no. 2
  3. Barter S. New reduced diameter implants for wider clinical options. European Association for Osseointegration 17th Annual Scientific Meeting, Warsaw, Poland, 18-20 September 2008.    Back to citation no. 3
  4. Bernhard N, Berner S, de Wild M, Wieland M. The binary TiZr alloy: A newly developed Ti alloy for the use in dental implants. Forum Implantol 2009;5:30–9.    Back to citation no. 4
  5. Barter S, Stone P, Brägger U. A pilot study to evaluate the success and survival rate of titanium-zirconium implants in partially edentulous patients: Results after 24 months of follow-up. Clin Oral Implants Res 2012 Jul;23(7):873–81.   [CrossRef]   [Pubmed]    Back to citation no. 5
  6. Karl M, Krafft T, Kelly JR. Fracture of a narrow-diameter roxolid implant: Clinical and fractographic considerations. Int J Oral Maxillofac Implants 2014 Sep–Oct;29(5):1193–6.   [CrossRef]   [Pubmed]    Back to citation no. 6

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Author Contributions
Ashutosh Gupta – Substantial contributions to conception and design, Acquisition of data, Analysis and interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Guarantor of submission
The corresponding author is the guarantor of submission.
Source of support
None
Conflict of interest
Authors declare no conflict of interest.
Copyright
© 2017 Ashutosh Gupta. This article is distributed under the terms of Creative Commons Attribution License which permits unrestricted use, distribution and reproduction in any medium provided the original author(s) and original publisher are properly credited. Please see the copyright policy on the journal website for more information.


ABOUT THE AUTHOR

Ashutosh Gupta is Assistant Professor in Department of Prosthodontics & Oral Implantology at Dental College, Azamgarh, India. He earned undergraduate degree (BDS) and postgraduate degree (MDS) from Saraswati Dental College, Lucknow. He has published 12 research papers in national and international academic journals and patented one appliance for obstructive sleep apnea in edentulous patients. His research interests include obstructive sleep apnea, maxillofacial prosthodontics and removable prosthodontics.





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