Rectangular Dental Implant Base Member Design

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Solution Overview

Problem

Dental implants often result in food accumulation and decay due to the mismatch between the round implant shape and the square or rectangular geometry of missing teeth, leading to enlarged periodontal gaps and instability.

Innovation Solution

A dental implant system with a base member and implant screw that are adapted to be embedded within the jawbone, featuring a rectangular or square geometry to match the shape of the missing tooth, with a tapered central opening and securing screws to secure the base member firmly to the jawbone, reducing microleakage and enhancing bone growth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a round implant is used to replace a missing tooth, then the implant can be easily manufactured and inserted, but it creates enlarged periodontal gaps that lead to food accumulation and decay

Engineering Contradiction:
Improveease of implant manufacturingVSAvoidfood accumulation and decay
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent applies asymmetry by changing the implant geometry from round to rectangular or square, matching the natural tooth shape. This asymmetric design eliminates the enlarged periodontal gaps that occur with round implants, preventing food accumulation while maintaining manufacturability through standard machining processes.

Inventive Principle:
Principle #4Asymmetry

2Stability of the object's composition

If the base member is embedded within the jawbone, then stability and support for the prosthesis are improved, but surgical complexity and bone removal requirements increase

Engineering Contradiction:
Improvestability of implant in jawboneVSAvoidsurgical procedure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by performing precise bone removal and creating a receptacle before inserting the base member. This preparatory step ensures the base member fits snugly and securely within the jawbone, maximizing stability while standardizing the surgical process to reduce overall complexity.

Inventive Principle:
Principle #10Preliminary action

3Strength

If securing screws are used to fasten the base member to the jawbone, then the implant stability is improved, but the device complexity and number of components increase

Engineering Contradiction:
Improvestrength of implant attachmentVSAvoidnumber of implant components
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent applies merging by integrating the base member and securing screws as a coordinated system where the screws are specifically designed to engage with the base member geometry. This combination provides strong attachment to the jawbone while maintaining a relatively simple overall structure with only essential components.

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If the outer periphery of the base member is roughened, then bone growth and osseointegration are enhanced, but manufacturing precision requirements increase

Engineering Contradiction:
Improvebone growth to base memberVSAvoidsurface finish precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent applies local quality by roughening only the outer periphery of the base member that contacts the jawbone, while keeping other surfaces smooth. This localized surface treatment enhances bone growth and osseointegration at the critical interface without requiring high precision across the entire component, balancing reliability with manufacturability.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS8287278B2Dental implant systems and methods
Publication Date: 2012.10.16 GRANT DENTAL TECHNOLOGY CORP
  • US8287278B2 patent drawing
  • US8287278B2 patent drawing
  • US8287278B2 patent drawing

AI summary

A dental implant system includes a base member that is adapted to be embedded within a patient's jawbone at a treatment site. The base member has a generally flat top side defining an outer periphery, a bottom side, a central opening, and at least one screw hole positioned between the central opening and the outer periphery. The system also includes an implant screw that is adapted to pass through the central opening of the base member and into the patient's jawbone. The system further includes a securing screw that is smaller in size than the implant screw and has a head and a threaded end. The threaded end of the securing screw passes through the screw hole of the base member and into the patient's jawbone.