Squamous cell carcinoma is a common malignant condition affecting the oral cavity and may involve the surrounding maxillofacial regions. Treatment commonly involves resection of the tumor, followed by prosthetic rehabilitation of the resection defect. This clinical report presents a 62-year-old Asian male patient who had previously undergone surgical resection, resulting in a post-surgical Aramany Class II maxillary defect. The patient\'s medical history included severe trismus, characterized by restricted mouth opening, as well as a diagnosis of maxillary sinus verrucous squamous cell carcinoma. This report provides a comprehensive account of the rapid fabrication of an interim obturator using digitally assisted dentistry techniques.

OBJECTIVE: To evaluate the stress on the surrounding structures of Aramany class I maxillectomy defect restored with different obturator prostheses.
RESULTS: Definitive three-dimensional (3D) finite element (FE) model of Aramany class I defect rehabilitated with single- and two-piece closed bulb obturator prostheses was constructed based on patient computed tomography (CT) using a software. Unilateral defect restored with tripodal design single-piece closed bulb obturator was used as FE model 1- and two-piece magnet retained closed bulb obturators as FE model 2. Finite element analysis (FEA) with three different load (150 N, 200 N and 250 N) applications was used to calculate the equivalent von Mises stress. A least stress value of 62.28 MPa was observed in two-piece closed bulb design with 150 N force, and highest stress value of 104.15 MPa was observed in single-piece obturator with application of 250 N force.
CONCLUSIONS: Minor difference in stress distribution pattern was observed between single-piece obturator and two-piece obturator, and stress value was comparatively lesser in two-piece than single-piece obturator. The stress pattern, distribution and numerical values increased with increase in magnitude of forces. More stress was observed on the lateral slopes of obturator closer to defect than in other areas of the obturator.

UNASSIGNED: Rehabilitation of hemi-maxillectomy defects is difficult and challenging when there is displacement of obturator prosthesis. The literature lacks data on the displacement of different types of obturators. The intent of the study was to evaluate the differences in displacement between the single and two piece hollow bulb obturator prosthesis in Aramany Class I maxillectomy defect.
UNASSIGNED: Finite element (FE) model of Aramany Class I maxillectomy defect restored with single and two piece closed bulb obturator was fabricated based on patient computed tomography (CT) scan. Finite element analysis (FEA) with three different load applications was done to measure the displacement of the obturator. Graphical and numerical values of displacement were obtained and the results were tabulated.
UNASSIGNED: The results were obtained as displacement colour images and the numerical displacement values. The displacement of two piece obturator was 4.779e-8, 6.372e-8, 7.965e-8 compared to single piece obturator 4.509e-8, 6.012e-8, and 7.5151e-8. There was marginal numerical increase in magnitude of displacement in two piece obturator compared to single piece obturator.
UNASSIGNED: The study observed no significant difference in displacement between the obturator. The numerical difference in displacement is more in two piece obturator compared to the single piece obturator.