Clinical dental technician Jonathan Hughes handles a tough removable partial denture case with Ultaire™ AKP
Hughes Dental Laboratory in Harrogate was awarded Best Prosthetic Laboratory in 2017 and continues to invest in the latest dental materials, techniques and software to successfully develop the business and enhance its relationship with clients.
As part of its commitment to providing dentists and patients with the highest standard of work possible, the Hughes Dental team has adapted to digital design for removable frameworks and now offers Ultaire™ AKP – a new high-performance polymer made by Solvay Dental 360™.
This material has been custom developed specifically for the fabrication of removable partial denture (RPD) frames and here, Jonathan Hughes (above) prosthetic and clinical dental technician details a recent case study that illustrates how Hughes Dental Laboratory continually consults with clients and uses innovative manufacturing processes and products to meet customers’ expectations and needs.
Case selection is very important but recently, when I saw a patient who had a history of dentures fracturing, it was concluded that Ultaire AKP could be the ideal treatment option to solve the problem:
My patient had previously tried a chrome/cobalt as well as a flexible removable partial denture without success, so I wanted to achieve a strong, retentive RPD that would prevent future fracturing.
Fig. 1. The patient’s occlusal scheme.
Fig 2.Clinical photograph of the patient’s tight bite.
Fig 3. Digital image of the patient’s tight bite.
The patient had a very heavy occlusal scheme, especially anteriorly in the UL2 UL3 region and a tight bite. We decided to use Ultaire AKP because the patient had deep undercuts and although this material is strong and highly retentive, it offers the flexibility required to go into those undercuts.
In addition, by using Ultaire AKP the occlusal surface can be encompassed into the framework, which can be more pleasant for the patient to occlude against.
Fig. 4. Ultaire AKP was kept to the minimum thickness of the limitations at the design stage.
Fig. 5. Retention before the tags are placed.
Fig 6. The occlusal surface built up in Ultaire AKP
Primary impressions were taken, and a custom-made tray and wax occlusal record rim were produced in order to record the centric jaw relation and take master working impression. At this point it should be noted that normally for metal backings we would need a ‘try in’ to verify the occlusion, but because Ultaire AKP is fabricated digitally we were able to go straight to try in with the frame, before taking photographs to determine shade, characterisation and the final fit.
Fig 7. The ‘try in’ stage
Fig 8. & Fig 9. The finished Ultaire AKP frame with composite build up prior to final fit.
We had to do some slight occlusal adjustments at try-in stage but that was the only issue. The result was as expected and there was no easing or adjustments to be made at the final fit. I was happy, and the patient was very pleased with the result. He also said that he preferred the feel and look of the denture over his previous RPDs.
Fig 10. The final fit.
For more information about Solvay Dental 360™, Ultaire™ AKP and Dentivera™ milling discs, visit www.solvaydental360.com