Case Report

Year : 2024

Volume : Volume 15

Issue : Issue 2

Rehabilitation of a Patient with Marked Alveolar Defect Following Ameloblastoma with an Implant-supported Fixed Prosthesis using Hobo’s Twin Stage Concept: A Case Report with 2-year Follow-up

Dr. Kritika Rajan

Address for correspondence :
Dr. Kritika Rajan
kritikarajan91@gmail.com

Abstract


A 20-year-old male patient reported with a need for prosthodontic rehabilitation following an alveolar defect in the mandible, Cantor and Curtis Class I. Fabrication of porcelain fused to metal implant-supported fixed prosthesis (FP-2) was planned for the mandibular arch, on five implants. For the development of occlusion, Hobo’s twin-stage technique was applied in which the posterior and anterior segments were fabricated with differential angulations, as directed in the concept. An FP-2 prosthesis was the treatment of choice in this patient, as there was the loss of bone structure following the surgical procedure, thereby increasing the crown height considerably. A stable occlusion scheme was required for the rehabilitation of this, for which Hobo’s twin-stage occlusion philosophy was applied. Hobo had suggested that the incorporation of posterior disocclusion helps in avoiding harmful lateral forces. In a case where the crown height is more, lateral forces tend to decrease the life span of a prosthesis. Hobo’s technique uses the cusp angle as the main determinant of the scheme; hence, it is not necessary to record the condylar path. This helps in reducing the need of complicated armamentarium, increasing the efficiency and productivity of the prosthesis.