Complete anodontia and alveolar ridge resorption are responsible for lack of retention and stabilization of conventional acrylic lower denture.
Hybrid prostheses on 4 implants placed immediately in the first 7 days is therapeutic solution which allows patients better chewing and increased effective masticatory force.
Aim: The study aims to assess the functional and subjective treatment outcomes of full-arch fixed overdenture hybrid rehabilitation.
Material and Methods: 60 patients with hybrid prostheses over 4 implants were included in the study. The measurement of the masticatory force was done in the chewing center in the projection of the distally placed implant. Electro-gnathic-dynamometer measured the force of the muscle elevator and depressor of the mandible. Sensor was placed in plastic bite templates and the force value was registered three times.
Results: The mean masticatory forces measured in the chewing center before implants and overdenture were 95.7 N. One month later with the prosthesis the value was increased to 185.6 N and after 18 months 186.2 N.
Conclusion: There is significant increase in masticatory force in area of the distal implant. This is indicating increased resistance to load and higher efficiency of the chewing process after the treatment.
Keywords: overdenture, full-arch, hybrid prosthesi
