Researcher develop indigenous technology for user friendly and affordable tooth implants

Going to a dentist is always considered to be a costly affair. But after this development it won’t remain so. A group of researchers from Indian Institute of Technology (IIT Delhi) and Maulana Azad Institute of Dental Sciences (MAIDS) have developed indigenous technology for dental implants and these would provide user friendly and affordable solutions for all edentulous situations (missing tooth). These implants would work for all kind of conditions like single or multiple missing teeth and completely edentulous situations or full denture.

“It took us ten years to come up with this technology. The implants that are imported are expensive and the companies making them are unwilling to share the technology so we have made indigenous implants.” said Prof Naresh Bhatnagar, researcher, IIT Delhi.

The researchers studied selected a range of anthropometry in India based on this they started making them.  The design was based on the premise of minimum stress generation during the insertion of threaded Titanium implant. For every diameter the abutment size was different and they all were having a different screw. So the researchers made a multi-functional component and the patent was filed on the basis of less expensive dental implant system. 

The innovations include the use of same prosthetic platform for all implant integrated platform switching and the development of a single component which serves as implant mount, implant impression transfer coping, implant impression pickup coping (with long screw) and as the final straight abutment. The surface treatment for the implant was developed with a combination of grit blasting and acid etching for better Osseo integration of the implant with the surrounding bone, this was one of the key technology for its success.

The biological efficacy and safety was established with an animal study whose results were verified with Micro CT analysis and Histomorphometry at Sree Chitra Tirunal Institute for Medical Sciences & Technology (SCTIMST), Thiruvanthapuram and at Shriram Institute for Industrial research, Delhi. An initial clinical use of the implant was done at MAIDS under this, single tooth implant cases were compared with a standard control.

“There were 150 patients on them we have tested the implants. The success rate was 92 per cent. These tests were done after taking a complete clearance from the ethics clearance from MAIDS and then registering our trial in Clinical Trials Registry- India (CTRI). Then we have to create a clean room facility for maufacutre this implant to get a certificate from Drug Controller General of India (DCGI). We have set up a manufacturing lab in IIT Delhi” told Dr Bhatnagar.

A kit containing all types of surgical drills and components together with universal prosthetic components was also indigenously developed. It consists all the necessary machinery, molds, tools, jigs and fixtures were designed and developed, even for packaging, cleaning and sterilization, so that it becomes easy and comfortable for surgeons to deploy the implant with no-touch and use the system on patients for maximum success.

The manufacturing and cleaning facility was set up at Nano Research Facility (NRF) at IIT Delhi for the project and IIT Delhi obtained drug license as test manufacturing Unit for Dental implants for R&D purpose and for clinical trial from Delhi State Licensing Authority. More than 500 implants for the purpose of trial were manufactured in the IIT D facility till date.

The project was funded by Council of Scientific and Industrial Research. (India Science Wire)