Enhancing Retention in Digit Rehabilitation: Implant-Assisted Silicone Finger Prosthesis for an Amputated Thumb.

This case report details the prosthetic replacement of a thumb lost due to traumatic amputation. The primary goal of this replacement was to restore the thumb's functionality, enabling the patient to resume daily activities such as writing and holding objects. A silicone prosthesis, anchored by an osseointegrated implant in the metacarpal bone, was used for this purpose.

The Effect of Surface Treatments on the Retentive Strengths of Crowns Fabricated From Polymethylmethacrylate (PMMA) Reinforced With Graphene Nanoparticles After Thermocycling: An In Vitro Study.

Aim: The study aims to assess the effect of surface treatments by chemical agents on the retentive strengths of crowns fabricated from polymethylmethacrylate (PMMA) reinforced with graphene nanoparticles adhesively bonded to abutments after thermocycling.

Settings And Design: In vitro comparative study.

Materials And Methods: This study is composed of four groups - one control, one treated with 99% pure etchant acetone solution, one treated with 15 wt% potassium hydrogen fluoride solution, and the last group treated with a combination of both solutions.