AIIMS has unveiled an inventive additive manufacturing technology for jaw joint substitution to obtain precision in such processes. During a 3-day seminar the 2020 Second AIIMS Total TMJ Replacements Workshop, is being hosted at the Centre for Dental Education and Research (CDER) from Sunday. Dental specialists from around India are getting training via live operation presentations and exercise on bodies for this complicated process.
“The objective of this workshop is to train these surgeons in diagnosing the cases requiring jaw joint replacements, also called total temporomandibular joint (TMJ) replacements, on time, so that future disfigurement of face is limited,” says the head of the Department of Oral and Maxillofacial Surgery at CDER, AIIMS, Dr. Ajoy Roychoudhury.
He said that the artificial joint substitutions that are presently accessible in India are of global make. None of the companies in India are going beyond par with international levels.
“This is the reason why these joint replacement procedures are expensive. AIIMS is in touch with the 3D printing industry to get medical-grade 3D-printed joints which will bring down the price substantially. Also, it will be patient-specific for best fit, longevity and reduced operating time,” says Roychoudhury.
Currently, stock joints are the only ones accessible and they are hard to match in Indian patients. As stated by a professor in the Department of Oral and Maxillofacial Surgery, Dr Ongkila Bhutia because these jaw joints are costly. Poor victims cannot attain it.
“The government through its Rashtriya Arogya Nidhi (RAN) scheme is helping tremendously in sponsoring these joints thereby improving the quality of life of Indian poor patients,” said Bhutia.
Jaw joint is the most intricate and maximumly utilized joint in the body of a human being. It assists in closing and opening of the mouth, speaking, chewing food, and even assists in breathing.
“Sometimes, it may be absent congenitally or destroyed by trauma, infection, pathology, tumour or by some systemic autoimmune diseases. To establish normal jaw function, it should be repaired or replaced by autogenous or artificial means,” explains Dr Rahul Yadav, associate professor in the department of oral and maxillofacial Surgery at AIIMS.
When it comes to artificial jaw joint replacement, there are two options, First, there is stock jaw joint and another is victim specific jaw joint. The limited shape and size of the accessible stock joint and each patient’s natural bone anatomy discrepancy makes its use very restricted. The patient-particular jaw joint is a unique choice or the most suitable alternative.
“Patient specific jaw joint fabrication is very costly, time-consuming, challenging and requires long-term clinical experience. Fortunately, immersive 3D technology makes it more feasible and less turn around time for fabrication,” said Yadav.
The top section of the joint is created of unique kind high strength biocompatible plastic material attached to the skull bone with titanium screws. This is while the lower section is created of additively manufactured titanium material fixed to the lower jaw with several titanium screws.