Angled Zygomatic Implant Spanning Bone Gap
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Solution Overview
Problem
Zygomatic dental implants face challenges in anchoring to the zygomatic bone while avoiding the ocular orbit and achieving an appropriate angle to engage the maxillary bone, leading to potential eye damage and limitations in using conventional abutments.
Innovation Solution
An angled zygomatic implant apparatus with a zygomatic abutment screw and an elongated angled extension that spans the zygomatic and maxillary bones, featuring a conical receptacle and implant end configuration to securely anchor in the zygomatic bone and extend at a controlled angle to the maxillary bone, allowing for fixation with either a single or multi-unit abutment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the zygomatic implant travels at a more extreme angle toward the front of the patient's mouth to anchor incisors or front teeth, then the ability to restore front teeth is improved, but the risk of impacting the ocular orbit increases, potentially causing irreversible eye damage
Solution Approach 1:
The implant system is divided into two separate components: a zygomatic abutment screw that anchors in the zygomatic bone, and an angled extension that connects to the maxillary bone. This segmentation allows the anchoring point and the tooth-restoring portion to be positioned independently, enabling extreme angles for front tooth restoration without directing the implant through the ocular orbit.
Solution Approach 2:
The angled extension acts as an intermediary component between the zygomatic abutment screw and the maxillary bone. It spans the space between these two bones, transferring the anchoring force from the zygomatic bone to support front teeth, while its geometry ensures it does not pass through the ocular orbit.
2Reliability
If a conventional zygomatic implant is used, then the implant can be placed in the zygomatic bone, but it cannot bridge the space to the maxillary bone at the required angle for conventional abutments
Solution Approach 1:
The angled extension is designed with specific geometric parameters (elongated shape, angled configuration) that allow it to dynamically adapt to the spatial relationship between the zygomatic and maxillary bones, enabling the connection to be made at the precise angle required for conventional abutment engagement while maintaining secure anchoring.
3Object-affected harmful factors
If a large multi-unit abutment is used to avoid ocular orbit impact, then eye damage risk is reduced, but the complexity of the implant system increases and single implant use is limited
Solution Approach 1:
The angled extension serves multiple functions: it anchors in the zygomatic bone, spans the space to the maxillary bone, provides the required angle for conventional abutments, and avoids the ocular orbit. This multi-functionality in a single component eliminates the need for complex multi-unit abutment systems.
Data Source
AI summary
An angled zygomatic implant apparatus for spanning a patient's zygomatic bone and maxillary bone includes a zygomatic abutment screw with a conical receptacle and san implant threaded bore, the zygomatic abutment screw is adapted for fixation in the patient's zygomatic bone, and an angled extension having an implant end adapted with a conical portion adapted for fixation to the conical receptacle of the zygomatic abutment screw. The angled extension is elongated and otherwise adapted to span the space between a patient's zygomatic bone and maxillary bone for fixing a maxillary tooth implant.