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The optional apex sites for quad zygomatic implant placement in edentulous patients with severe alveolar bone resorption: a CBCT anatomical analysis.
BMC Oral Health
November 2024
Department of Oral and Maxillofacial Surgery, National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Peking University School and Hospital of Stomatology, No. 22 Zhongguancun South Avenue, Haidian District, Beijing, PR China.
Objective: To investigate the difference in bone-implant contact (BIC) and the rate of infratemporal fossa intrusion among different apex sites for quad zygomatic implants (ZIs) design in edentulous patients with severe alveolar bone resorption.
Methods: Patients with maxillary edentulism were evaluated. Alveolar bone resorption was assessed using the Cawood and Howell classification.
Biomechanical evaluation of implant options for unilateral maxillary defects: a finite element analysis.
BMC Oral Health
November 2024
Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Hacettepe University, Campus of Sıhhıye, Altındağ, Ankara, 06100, Turkey.
Objective: This study aimed to evaluate stress distribution in unilateral maxillary defects using finite element analysis (FEA) to compare subperiosteal (SI) and zygomatic implants (ZI).
Materials And Methods: A 3D model of a unilaterally atrophied maxilla was reconstructed from CT scans. Five scenarios were simulated: (1) quad zygoma implants (SC1), (2) zygoma and conventional implants (SC2), (3) two-piece SI and conventional implants (SC3), (4) one-piece SI and conventional implants (SC4) and (5) one-piece SI implant (SC5).
Biomechanical evaluation of six zygomatic implants versus four zygomatic implants combined with dental implants in the treatment of different maxillary defects.
BMC Oral Health
October 2024
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Atatürk University, Erzurum, Turkey.
Background: This study aims to compare the biomechanics of six zygomatic implants (ZIs) and dental implants (DIs) combined with four ZIs with different maxilla defects.
Methods: Three-dimensional constructs of the ZIs, DIs human skulls, and maxillary prostheses were created using SolidWorks Software (Version 2015, Dassault Systems SolidWorks Corporation, Waltham, MA, USA). Eight finite element models of the skull with four different alveolar defect types (0-4) were constructed.
Assessment of different treatment alternatives for patients with total maxillectomy.
J Prosthodont
September 2024
Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey.
Purpose: To assess the biomechanical advantages of combining zygoma and partial subperiosteal implants for maxillary reconstruction in severely atrophic maxillae, offering potential solutions to the challenges posed by traditional reconstruction methods.
Material And Methods: A finite element analysis used a craniofacial model simulating a totally resected maxilla. Four treatment scenarios (SCs) were evaluated: SC-1, the quad zygoma approach; SC-2, two zygoma implants (ZIs) and a one-piece subperiosteal implant (SI); SC-3, two ZI and a two-piece SI; and SC-4, four ZI and a one-piece SI.
Evaluation of Surgical Outcomes of Zygomatic Implant-Supported Rehabilitation of Atrophic Maxillary Arches - A Prospective Study.
Ann Maxillofac Surg
July 2024
Department of Oral and Maxillofacial Surgery, A.S Dentistry, Salem, Tamil Nadu, India.
Introduction: Prosthetic rehabilitation with implants in the atrophic edentulous maxilla often requires a bone augmentation procedure to enable implant placement and integration. However, rigid anchorage can also be achieved using long zygomatic implants. The aim of this study was to evaluate the surgical outcomes of rehabilitation of atrophic posterior maxillary ridges with zygomatic implants using the zygomatic success code (ZSC) and derive the success grade for the procedure based on the observed results.
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