Titanium Ultrasonic Tip for Dental Implant Debridement

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Solution Overview

Problem

Current ultrasonic instruments for treating peri-implantitis are inadequate, as they risk fixture erosion and contamination of titanium dental implants due to material transfer and surface alteration during debridement, and existing tips are not optimized for microstructured surfaces.

Innovation Solution

A titanium-grade 4 ultrasonic tip designed to match the implant surface, with a unique resonance frequency between 30 kHz and 34 kHz, and various distal end shapes to prevent material transfer and ensure safe, complete debridement without mechanical damage or bacterial recontamination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional ultrasonic tips are used for debridement of titanium implants, then cleaning effect is achieved, but material transfer and surface alteration occur causing fixture erosion and bacterial recontamination

Engineering Contradiction:

Improvesafety of implant surfaceVSAvoidmaterial transfer and surface alteration

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The ultrasonic tip is made of the same material (titanium grade 4) as the implant surface it treats. This material homogeneity prevents foreign element contamination and surface alteration, as the tip does not introduce different materials that could erode or contaminate the implant surface during ultrasonic debridement operations

Inventive Principle:

Principle #33Homogeneity

Solution Approach 2:

The patent converts the potential harm of material transfer into a benefit by using titanium tips that are biocompatible and chemically similar to the implant. The material that could potentially transfer is the same titanium, which does not cause adverse reactions or contamination, thus turning a potential harmful effect into a safe or even beneficial outcome

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Productivity

If ultrasonic vibrations are applied to debride implant surfaces, then bacterial biofilm removal is achieved, but risk of fixture erosion increases

Engineering Contradiction:

Improvedebridement effectivenessVSAvoidfixture erosion

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent specifies precise parameter ranges for the ultrasonic tip including resonance frequency (30-34 kHz), dimensions (length 15-25mm, diameter 0.3-0.8mm), and material properties (titanium grade 4). These optimized parameters ensure effective debridement while controlling the mechanical energy transmission to prevent fixture erosion

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent utilizes controlled mechanical vibrations at ultrasonic frequencies to achieve debridement. The tip is designed to transmit vibrations effectively at its resonance frequency, creating cavitation and mechanical cleaning action that removes biofilm without requiring excessive force that could cause erosion

Inventive Principle:

Principle #18Mechanical vibration

3Reliability

If existing ultrasonic instruments are used for peri-implantitis treatment, then some cleaning effect is achieved, but complete debridement cannot be ensured

Engineering Contradiction:

Improvecompleteness of debridementVSAvoidtreatment effectiveness

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The ultrasonic tip features a specifically designed distal end geometry with particular curvature radius (0.05-0.2mm) and shape configurations that match the local anatomy of implant surfaces and thread spaces. This localized geometric optimization enables the tip to access and clean difficult-to-reach areas between implant threads, ensuring complete debridement of the entire implant surface

Inventive Principle:

Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The titanium ultrasonic tip provides effective and safe debridement of titanium dental implants, preventing foreign element contamination and surface alteration, ensuring optimal treatment and maintenance of implant surfaces.

Implementation Method 1

transmit ultrasonic vibrations to a surface of a dental implant to be treated

Methodology Applied

Scientific EffectUltrasonic vibration: Ultrasonic Vibration

Implementation Method 2

the structural specifications of the ultrasonic tip are arranged such that said ultrasonic tip has a unique resonance frequency which falls within the operating frequency range of said ultrasonic instrument

Methodology Applied

Scientific EffectResonance: Resonance

Data Source

PatentEP3197385B1Ultrasonic tip for ultrasonic instrument and method of dental treatment with said ultrasonic tip

Publication Date: 2021.07.21 SOC POUR LA CONCEPTION DES APPL DES TECHN ELECTRONIQUES SATELEC

Figure 1A~1B
Figure 2
Figure 3~4

AI summary

An ultrasonic tip (22) in titanium for ultrasonic instrument, and a method of dental treatment of peri-implantitis using an ultrasonic tip operable to cooperate with an ultrasonic instrument to transmit ultrasonic vibrations to a surface of a dental implant (42) to be treated, said implant and said ultrasonic tip being made of titanium.