A system and device for evaluating periodontal tissue inflammation
By calculating attachment loss and gingival recession values at multiple points on the teeth, and combining this with the proportion of bleeding sites, the surface area of periodontal inflammation is calculated. This solves the problem of inaccurate periodontal inflammation assessment in existing technologies, and achieves precise periodontal inflammation assessment and treatment guidance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HOSPITAL OF STOMATOLOGY CHINA MEDICAL UNIV
- Filing Date
- 2026-04-03
- Publication Date
- 2026-06-30
AI Technical Summary
In existing technologies, periodontal probing depth and clinical attachment loss cannot reflect the continuous changes in periodontal inflammation, and cannot accurately assess the degree of inflammation and damage to periodontal tissues, thus affecting the prediction of other diseases caused by periodontitis.
By calculating the clinical attachment loss and gingival recession values at multiple points on a single tooth, converting them into attachment loss surface area and gingival recession surface area, and combining this with the proportion of sites affected by probing bleeding, the periodontal inflammation surface area is calculated, providing a system and device for accurate assessment.
It enables precise quantitative assessment of periodontal inflammation, visually demonstrating the severity and extent of damage, improving patient compliance and confidence in treatment, reducing subjectivity, and is suitable for both clinical and research purposes.
Smart Images
Figure CN122297156A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of oral clinical medicine, and more specifically to a system and apparatus for evaluating periodontal tissue inflammation. Background Technology
[0002] In existing techniques for assessing periodontal inflammation, periodontal probing depth (PPD) and clinical attachment loss (CAL) are single-site, discontinuous variables that cannot reflect continuous changes in periodontal inflammation. Since teeth and periodontal tissues are three-dimensional structures, PPD and CAL cannot fully reflect the degree of inflammation and damage to periodontal tissues, and therefore cannot adequately predict the likelihood of periodontitis leading to other diseases. Summary of the Invention
[0003] The present invention provides a system and apparatus for evaluating periodontal tissue inflammation, thereby solving at least one of the above-mentioned technical problems.
[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A system for evaluating periodontal tissue inflammation, comprising: The attachment loss surface area calculation module is used to calculate the attachment loss surface area of a single tooth based on clinical attachment loss measurements at multiple points on the tooth. The gingival recession surface area calculation module is used to calculate the gingival recession surface area of a single tooth based on the gingival recession measurement values at multiple points on the single tooth. The periodontal epithelial surface area calculation module is used to subtract the gingival recession surface area of a single tooth from the attachment loss surface area of that single tooth to obtain the periodontal epithelial surface area of that single tooth. The periodontal inflammation surface area calculation module is used to multiply the periodontal epithelial surface area of a single tooth by the proportion of sites affected by probing bleeding to obtain the periodontal inflammation surface area of that single tooth. The periodontal tissue inflammation evaluation module is used to calculate the sum of the periodontal inflammatory surface areas of all teeth in the oral cavity, so as to obtain the total periodontal inflammatory surface area and evaluate periodontal tissue inflammation.
[0005] Based on the above technical solution, the present invention can be further improved as follows.
[0006] Furthermore, the attachment loss surface area calculation module is specifically used for: The average clinical attachment loss of a single tooth is calculated based on clinical attachment loss measurements at multiple points on the tooth. The attachment loss surface area of a single tooth is calculated based on the average clinical attachment loss of a single tooth.
[0007] Furthermore, the formula for calculating the attachment loss surface area of a single tooth is: ; ALSA represents the attachment loss surface area of a single tooth. This represents the average clinical attachment loss of a single tooth. a1, a2, a3, a4, a5, and a6 are all preset tooth position coefficients.
[0008] Furthermore, the shrinkage surface area calculation module is specifically used for: The average gingival recession value of a single tooth is calculated based on the gingival recession measurements taken at multiple points on the tooth. Calculate the gingival recession surface area of a single tooth based on the average gingival recession of that tooth.
[0009] Furthermore, the formula for calculating the gingival recession surface area of a single tooth is: ; Where RSA represents the gingival recession surface area of a single tooth. This represents the average gingival recession of a single tooth. a1, a2, a3, a4, a5, and a6 are all preset tooth position coefficients.
[0010] Based on the above-described system for evaluating periodontal tissue inflammation, the present invention also provides an apparatus for evaluating periodontal tissue inflammation.
[0011] An apparatus for evaluating periodontal tissue inflammation includes a processor, a memory, and a computer program stored in the memory, which, when executed by the processor, performs the functions of the system for evaluating periodontal tissue inflammation as described above.
[0012] The beneficial effects of this invention are as follows: This invention provides a system and apparatus for evaluating periodontal tissue inflammation. It converts linear clinical attachment loss measurements and gingival recession measurements into corresponding attachment loss surface areas and gingival recession surface areas. Combined with the proportion of sites affected by probing bleeding, it calculates a directly quantifiable periodontal inflammation surface area, accurately assessing the extent of periodontal tissue damage. Compared to existing single-point indicators, the periodontal inflammation surface area obtained by this invention can more intuitively illustrate the severity and extent of periodontitis to patients. Pre- and post-operative comparisons are more intuitive, improving patient compliance and increasing patient confidence in treatment. This invention fully quantifies and objectively reflects the periodontal inflammation and tissue damage, defining the degree of periodontal inflammation as a new continuous variable. This allows for a more precise description of the inflammation degree, minimizing subjectivity in assessing disease severity. It can be widely applied in clinical practice and research to assess the degree of periodontal inflammation and its impact on overall health, providing a reference for future development of more comprehensive assessments of periodontal inflammation and tissue damage. Attached Figure Description
[0013] Figure 1 This is a structural block diagram of a system for evaluating periodontal tissue inflammation according to the present invention; Figure 2 A schematic diagram showing that the gingival margin is below the cementoenamel junction; Figure 3 A schematic diagram showing the location of the gingival margin at the cementoenamel junction; Figure 4 A schematic diagram showing the gingival margin being higher than the cementoenamel junction; Figure 5 This is a structural block diagram of a device for evaluating periodontal tissue inflammation according to the present invention. Detailed Implementation
[0014] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.
[0015] like Figure 1 As shown, a system for evaluating periodontal tissue inflammation includes: The attachment loss surface area calculation module is used to calculate the attachment loss surface area of a single tooth based on clinical attachment loss measurements at multiple points on the tooth. The gingival recession surface area calculation module is used to calculate the gingival recession surface area of a single tooth based on the gingival recession measurement values at multiple points on the single tooth. The periodontal epithelial surface area calculation module is used to subtract the gingival recession surface area of a single tooth from the attachment loss surface area of that single tooth to obtain the periodontal epithelial surface area of that single tooth. The periodontal inflammation surface area calculation module is used to multiply the periodontal epithelial surface area of a single tooth by the proportion of sites affected by probing bleeding to obtain the periodontal inflammation surface area of that single tooth. The periodontal tissue inflammation evaluation module is used to calculate the sum of the periodontal inflammatory surface areas of all teeth in the oral cavity, so as to obtain the total periodontal inflammatory surface area and evaluate periodontal tissue inflammation.
[0016] This invention provides a system for evaluating periodontal tissue inflammation that converts linear clinical attachment loss measurements and gingival recession measurements into corresponding attachment loss surface areas and gingival recession surface areas. It also calculates the periodontal inflammatory surface area that can be directly quantified by combining the proportion of sites affected by probing bleeding, thus accurately assessing the extent of periodontal inflammatory tissue damage.
[0017] In this embodiment, the adhesion loss surface area calculation module is specifically used for: The average clinical attachment loss of a single tooth is calculated based on clinical attachment loss measurements at multiple points on the tooth. The attachment loss surface area of a single tooth is calculated based on the average clinical attachment loss of a single tooth.
[0018] Specifically, the formula for calculating the attachment loss surface area of a single tooth is: ; ALSA represents the attachment loss surface area of a single tooth. This represents the average clinical attachment loss of a single tooth. a1, a2, a3, a4, a5, and a6 are all preset tooth position coefficients.
[0019] In this embodiment, the shrinkage surface area calculation module is specifically used for: The average gingival recession value of a single tooth is calculated based on the gingival recession measurements taken at multiple points on the tooth. Calculate the gingival recession surface area of a single tooth based on the average gingival recession of that tooth.
[0020] Specifically, the formula for calculating the surface area of gingival recession in a single tooth is: ; Where RSA represents the gingival recession surface area of a single tooth. This represents the average gingival recession of a single tooth. a1, a2, a3, a4, a5, and a6 are all preset tooth position coefficients.
[0021] Specifically, when the tooth is located in different tooth positions, the preset tooth position coefficients used in the above formulas for calculating the attachment loss surface area of a single tooth and the formulas for calculating the gingival recession surface area of a single tooth are different. Table 1 below shows the preset tooth position coefficients corresponding to different tooth positions.
[0022] Table 1: Preset tooth position coefficients for different tooth positions
[0023] In this embodiment, the formula for calculating the periodontal epithelial surface area of a single tooth by the periodontal epithelial surface area calculation module is as follows: PESA = ALSA – RSA; PESA represents the periodontal epithelial surface area of a single tooth.
[0024] In this embodiment, the formula for calculating the periodontal inflammation surface area of a single tooth by the periodontal inflammation surface area calculation module is as follows: PISA = PESA * n / N; In this context, PISA represents the periodontal inflammatory surface area of a single tooth, and n / N represents the proportion of sites affected by bleeding on probing, where N is the total number of probing sites on a single tooth, and n is the number of probing sites on a single tooth. For example, if three out of a maximum of six sites are affected by BOP (bleeding on probing), then the PESA of that specific tooth is multiplied by 3 / 6 to obtain the PISA for that specific tooth.
[0025] Figure 2 , Figure 3 and Figure 4 This diagram illustrates the different locations of the gingival margin compared to the cementoenamel junction. Figure 2 In this case, when the gingival margin is below the cementoenamel junction (CEJ), gingival recession has occurred, and the numerical result of the location of the gingival margin (LGM) is CAL-PPD. Figure 3 In this case, the gingival margin is located at CEJ, and LGM = 0. Figure 4 In the middle, the gingival margin is higher than CEJ. for Figure 2 and Figure 3 As shown, the values of CAL and LGM can be directly input into the system of this invention, and the system will automatically generate the total PISA result. For Figure 4 In the case shown, CAL needs to be replaced with PPD, that is, the values of PPD and LGM need to be entered, and the system of this invention will automatically generate the total PISA result.
[0026] Figure 2 , Figure 3 and Figure 4 The three different total PISA results are shown; among them, Figure 2The results show that the periodontal tissues are relatively healthy, with fewer BOP sites and CAL ≤ 3mm. Figure 3 The findings indicate severe localized periodontitis, with a CAL of 6-10 mm. BOP sites are localized. Figure 4 The results show extensive and severe periodontitis, widespread bleeding points (BOP), and a CAL of 3–10 mm. By inputting the CAL and LGM of the corresponding tooth positions into the system of this invention and calculating the proportion of bleeding points on probing, the system can automatically generate PESA and PISA values; for example, Figure 2 The total PISA shown is 28.6 mm. 2 , Figure 3 The total PISA shown is 1048 mm. 2 , Figure 4 The total PISA value shown is 3794.2 mm. 2 .
[0027] Based on the above-described system for evaluating periodontal tissue inflammation, the present invention also provides an apparatus for evaluating periodontal tissue inflammation.
[0028] like Figure 5 As shown, an apparatus for evaluating periodontal tissue inflammation includes a processor, a memory, and a computer program stored in the memory. When executed by the processor, the computer program performs the functions of the system for evaluating periodontal tissue inflammation as described above.
[0029] In one alternative embodiment, a device for evaluating periodontal tissue inflammation is provided, such as... Figure 5 As shown. Figure 5 The device shown for evaluating periodontal tissue inflammation includes a processor and a memory. The processor and memory are connected, for example, via a bus. Optionally, the device for evaluating periodontal tissue inflammation may further include a transceiver, which can be used for data interaction between the device and other electronic devices, such as sending and / or receiving data. It should be noted that in practical applications, the transceiver is not limited to one unit, and the structure of this device for evaluating periodontal tissue inflammation does not constitute a limitation on the embodiments of the present invention.
[0030] The processor can be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLC (Programmable Logic Controller), a FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this invention. The processor can also be a combination that implements computational functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.
[0031] A bus can include a pathway for transmitting information between the aforementioned components. The bus can be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.
[0032] The memory may be ROM (Read Only Memory) or other types of static storage devices capable of storing static information and instructions, RAM (Random Access Memory) or other types of dynamic storage devices capable of storing information and instructions, or EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited to these.
[0033] The memory stores application code (computer program) that executes the present invention, and its execution is controlled by the processor. The processor executes the application code stored in the memory to implement the contents shown in the foregoing system embodiments.
[0034] The device used to evaluate periodontal tissue inflammation can also be a terminal device. The terminal device can be any device that can install applications, including at least one of smartphones, tablets, laptops, desktop computers, smart speakers, smartwatches, smart TVs, and smart in-vehicle devices.
[0035] It should be noted that, Figure 5 The device shown for evaluating periodontal tissue inflammation is merely an example and should not be construed as limiting the functionality and scope of the embodiments of the present invention.
[0036] The present invention provides a system and apparatus for evaluating periodontal tissue inflammation, which has the following beneficial effects: 1. Directly quantify the inflammatory surface area to accurately assess the extent of periodontal tissue damage caused by inflammation.
[0037] 2. It allows for retrospective analysis of past patient data.
[0038] 3. A more accurate understanding of the severity of periodontal disease in each patient allows for better assistance in designing treatment plans.
[0039] 4. The new indicators are conducive to promoting the development of periodontology and research on systemic diseases.
[0040] 5. Compared to previous single-point indicators, PISA can more intuitively illustrate the severity and damage of periodontitis to patients. The comparison before and after the procedure is more intuitive, improving patient compliance and increasing patients' confidence in treatment.
[0041] 6. As a new indicator for periodontal disease research, it can more comprehensively and accurately assess the periodontal inflammatory tissues and damage.
[0042] 7. It is easy to use in clinical practice. After recording the values, the software can automatically generate the final results.
[0043] In summary, this invention fully quantifies and objectively reflects the periodontal inflammatory tissue and periodontal tissue damage, defining the degree of inflammation in periodontitis as a new continuous variable. This allows for a more precise description of the degree of inflammation, minimizing subjectivity in assessing disease severity. It can be widely applied in clinical practice and research to assess the degree of inflammation in periodontitis and its impact on overall health, providing a reference for future development of more comprehensive assessments of periodontal inflammatory tissue and damage.
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A system for evaluating periodontal tissue inflammation, characterized in that, include: The attachment loss surface area calculation module is used to calculate the attachment loss surface area of a single tooth based on clinical attachment loss measurements at multiple points on the tooth. The gingival recession surface area calculation module is used to calculate the gingival recession surface area of a single tooth based on the gingival recession measurement values at multiple points on the single tooth. The periodontal epithelial surface area calculation module is used to subtract the gingival recession surface area of a single tooth from the attachment loss surface area of that single tooth to obtain the periodontal epithelial surface area of that single tooth. The periodontal inflammation surface area calculation module is used to multiply the periodontal epithelial surface area of a single tooth by the proportion of sites affected by probing bleeding to obtain the periodontal inflammation surface area of that single tooth. The periodontal tissue inflammation evaluation module is used to calculate the sum of the periodontal inflammatory surface areas of all teeth in the oral cavity, so as to obtain the total periodontal inflammatory surface area and evaluate periodontal tissue inflammation.
2. The system for evaluating periodontal tissue inflammation according to claim 1, characterized in that, The attachment loss surface area calculation module is specifically used for: The average clinical attachment loss of a single tooth is calculated based on clinical attachment loss measurements at multiple points on the tooth. The attachment loss surface area of a single tooth is calculated based on the average clinical attachment loss of a single tooth.
3. The system for evaluating periodontal tissue inflammation according to claim 2, characterized in that, The formula for calculating the attachment loss surface area of a single tooth is: ； ALSA represents the attachment loss surface area of a single tooth. This represents the average clinical attachment loss of a single tooth. a1, a2, a3, a4, a5, and a6 are all preset tooth position coefficients.
4. The system for evaluating periodontal tissue inflammation according to claim 1, characterized in that, The shrinkage surface area calculation module is specifically used for: The average gingival recession value of a single tooth is calculated based on the gingival recession measurements taken at multiple points on the tooth. Calculate the gingival recession surface area of a single tooth based on the average gingival recession of that tooth.
5. The system for evaluating periodontal tissue inflammation according to claim 4, characterized in that, The formula for calculating the surface area of gingival recession in a single tooth is: ； Where RSA represents the gingival recession surface area of a single tooth. This represents the average gingival recession of a single tooth. a1, a2, a3, a4, a5, and a6 are all preset tooth position coefficients.
6. A device for evaluating periodontal tissue inflammation, characterized in that, The system includes a processor, a memory, and a computer program stored in the memory, which, when executed by the processor, performs the functions of the system for evaluating periodontal tissue inflammation as described in any one of claims 1 to 5.