Inspection method for determining oral cavity index

An inspection method and intraoral technology, applied in the field of inspection for determining intraoral indicators, can solve problems such as hindering the choice of gum care and reducing the motivation of gum care.

Pending Publication Date: 2020-10-13
LION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, motivation decreases because the effect of gum care cannot be actually fe

Method used

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  • Inspection method for determining oral cavity index
  • Inspection method for determining oral cavity index
  • Inspection method for determining oral cavity index

Examples

Experimental program
Comparison scheme
Effect test

reference example 1

[0115] (Reference Example 1: Imaging of gingival collagen)

[0116] Ultrasound images were acquired using DermaLab at multiple locations on the gingiva of guinea pigs. Thereafter, the site was sliced, Masson's trichrome staining (Sigma-Aldrich) was applied to stain collagen, and only the blue portion was extracted from the stained image to obtain a binarized image A. The ultrasonic image and image A were divided into grids of 50 μm square, and the average brightness of each grid was calculated for all the grids of the two images.

[0117]According to the position of the epithelium and muscle, the ultrasonic image and the corresponding grid in image A are determined, and the correlation between the average brightness in the ultrasonic image corresponding to the grid and the average brightness in image A is analyzed. As a result, it was found that the average brightness in the ultrasonic image and image A are significantly correlated when the risk rate (significance level) is l...

Embodiment 1 and comparative example 1

[0118] (Example 1 and Comparative Example 1: Correlation between the age group of the test subject and the average brightness of the ultrasonic image (determination of gingival age))

[0119] Ultrasonic images of the gums were obtained from 109 men and women aged 24 to 64, and the average brightness of the connective tissue was calculated by further image analysis.

[0120] Photography of gingival ultrasound images was performed as follows. A probe dripped with edible gel is placed on the attached gingival area about 3 mm from the gingival edge of the interdental papilla on the left and right of the upper jaw, or on the attached gingival area. The alveolar mucosa area above the gingiva-alveolar mucosa boundary about 1 cm upward emits 20 MHz ultrasonic waves and receives reflected waves at the same time. This reflected wave is visualized by a computer and saved as an ultrasound image. This image was analyzed using common image analysis software (ImageJ (National Institutes of...

Embodiment 2

[0124] (Example 2: Correlation between the age group and smoking history of the subject and the average brightness of the ultrasonic image (judgment of the health status of the gums))

[0125] 44 males aged 50 to 64 were surveyed by questionnaire and divided into 2 groups according to their smoking history. In addition, 16 people had a history of smoking and 28 people had no history of smoking. The mean ages of the two groups of subjects were: smoking history 53.2 years old, non-smoking history 53.5 years old, almost the same.

[0126] For each test subject, the average brightness of all 27 measurement sites was calculated for the range from immediately below the gingival epithelium to 500 μm below the epithelium by the method of Example 1. The average value of the average brightness of the subjects of the smoking history group was 9.0, and the average value of the average brightness of the subjects of the non-smoking history group was 10.0.

[0127] In addition, in this ana...

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Abstract

The present invention addresses the problem of providing an inspection method that is for determining an oral cavity index and that is capable of determining an oral cavity index. This inspection method for determining an oral cavity index includes: an image acquisition step for acquiring an ultrasonic image inside attached gingiva of a patient by using a measurement probe; an average brightness acquisition step for acquiring an average brightness of the ultrasonic image; and an index determination step for determining an oral cavity index of the patient by referring to a reference of the oralcavity index and the average brightness.

Description

technical field [0001] The present invention relates to an inspection method for judging intraoral indexes. Background technique [0002] It is very important to maintain and improve a healthy state of the oral cavity not only from an aesthetic point of view but also from a disease prevention point of view. That is, it can be said that it is important to properly standardize the constituents inside the oral cavity and to make the gums healthy from the inside, not only from the external appearance of the oral cavity as an aesthetic point of view but also from the viewpoint of disease prevention. [0003] In the past, the diagnosis of oral clinical indicators (gum health status) was carried out by dentists etc. by pocket probing and X-ray examination, and it was not a simple and quantitative evaluation method of gum health status. As a result, motivation decreases because the effect of gum care cannot be actually felt, and it also hinders selection of gum care suitable for ea...

Claims

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Application Information

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IPC IPC(8): A61B8/12A61C19/04
CPCA61C19/04A61B8/12A61B8/5223A61B8/0858A61B5/4848
Inventor 山口继乃片冈伸介
Owner LION CORP
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