Saliva Biomarker Diagnostics for Gingivitis Detection
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Solution Overview
Problem
Current methods for diagnosing periodontal diseases, particularly gingivitis, are inefficient and subjective, relying on clinical examinations that are time-consuming and not suitable for early detection or self-diagnosis, and lack effective point-of-care tests for salivary biomarkers.
Innovation Solution
A method and system using a saliva-based test that measures the concentrations of Hepatocyte growth factor (HGF), Interleukin-1β (IL-1β), and C-reactive protein (CRP) or Haemoglobin (Hb) to assess the presence of gingivitis, with a kit containing detection reagents for these biomarkers, enabling a simple and accurate diagnostic process that can be performed by non-specialists or even self-administered.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional clinical examination methods are used for gingivitis diagnosis, then diagnostic accuracy can be maintained through professional assessment, but the diagnosis process becomes time-consuming and requires specialized training
Solution Approach 1:
The patent extracts the diagnostic function from complex clinical procedures by identifying and measuring specific salivary biomarkers (IL-1β, HGF, CRP, Hb) that directly indicate gingivitis presence. This extraction enables a simplified test that maintains diagnostic accuracy while eliminating time-consuming clinical procedures like pocket depth measurement and bleeding assessment
Solution Approach 2:
The patent replaces mechanical clinical examination methods (probing, visual inspection, bleeding assessment) with a biochemical detection system that measures biomarker concentrations in saliva. This substitution uses laboratory-based detection technology instead of manual clinical skills, achieving both speed and accuracy
2Reliability
If conventional clinical examination methods are used for gingivitis diagnosis, then professional assessment can be performed, but the methods are not suitable for self-diagnosis or non-specialist use
Solution Approach 1:
The patent enables self-service diagnosis by designing a saliva-based test that individuals can perform on themselves without professional training. The test collects saliva samples and measures biomarkers automatically, allowing patients to assess their own gingivitis status at home or in non-clinical settings while maintaining diagnostic reliability
Solution Approach 2:
The patent changes the diagnostic parameters from complex clinical measurements (pocket depth, bleeding index, probing assessment) to simple biomarker concentration measurements in saliva. This parameter transformation makes the test easier to perform while maintaining or improving diagnostic reliability through objective quantitative data
3Measurement precision
If multiple salivary biomarkers are measured simultaneously, then diagnostic accuracy and sensitivity improve, but the complexity of the diagnostic system increases
Solution Approach 1:
The patent merges the measurement of multiple salivary biomarkers (IL-1β, HGF, CRP, Hb) into a single integrated diagnostic system. By combining these markers in one test platform, the patent achieves high diagnostic sensitivity through multi-marker analysis while avoiding the complexity of running separate tests for each biomarker
Data Source
AI summary
Disclosed is an in vitro method for assessing the presence of gingivitis in a human subject. The method is based on the insight to determine a selection of three biomarker proteins. Accordingly, in a saliva sample of the subject the concentrations are measured of the proteins Hepatocyte growth factor (HGF) and Interleukin-1β (IL-1β), and at least one of C reactive protein (CRP) and Haemoglobin. Based on the concentrations as measured, a value is determined reflecting the joint concentrations for said proteins. This value is compared with a threshold value reflecting in the same manner the joint concentrations associated with the absence of gingivitis or periodontitis. The comparison allows to assessing whether the testing value is indicative of the presence of gingivitis in said subject. Thereby, typically, a testing value reflecting a joint concentration above the joint concentration reflected by the threshold, is indicative of the presence of gingivitis.