Smart toothbrush systems and methods including brushing time adjustment based on sleep information

The smart toothbrush system adjusts brushing event markers using sleep data to align with actual sleep patterns, addressing inaccuracies in existing systems and enhancing compliance metrics accuracy.

WO2026104322A1PCT designated stage Publication Date: 2026-05-21KONINKLIJKE PHILIPS NV
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
KONINKLIJKE PHILIPS NV
Filing Date
2025-11-10
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing smart toothbrush systems inaccurately determine morning and evening brushing events based on device timestamps, failing to account for non-traditional sleep schedules, leading to incorrect compliance metrics.

Method used

A smart toothbrush system that adjusts brushing event markers (AM/PM) based on actual sleep data from monitoring devices, ensuring compliance metrics reflect the user's sleep patterns.

Benefits of technology

Accurately determines brushing compliance by aligning timestamps with actual sleep cycles, improving user feedback and reward systems by correcting morning and evening brushing event classifications.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 00000019_0000
    Figure 00000019_0000
  • Figure 00000020_0000
    Figure 00000020_0000
  • Figure 00000021_0000
    Figure 00000021_0000
Patent Text Reader

Abstract

A personal care appliance a smart toothbrush system. The smart toothbrush system includes a processor and is configured to record brushing timestamps, and to determine AM and PM brushing compliance metrics from the brushing timestamps. The smart toothbrush system also includes a user interface for presenting the AM and PM compliance metrics to a user. The processor is configured to retrieve sleep data of the user as indicated by a sleep monitoring device, and to adjust AM and PM markers and dates of the timestamps to reflect the user's actual sleep patterns independent of a time of day. The adjusted AM and PM markers and dates of the timestamps are used to determine the AM and PM compliance metrics.
Need to check novelty before this filing date? Find Prior Art

Description

2024PF00507SMART TOOTHBRUSH SYSTEMS ND METHODS INCLUDING BRUSHING TIME ADJUSTMENT BASED ON SLEEP INFORMATIONFIELD OF THE INVENTION

[0001] The inventive concepts generally relate to smart toothbrush systems including smart toothbrushes and smart computing devices such as smart phones, smart mirrors, smart watches, smart glasses and so on. More particularly, the innovative and inventive concepts herein relate to smart toothbrush systems that integrate sleep tracking data into brushing compliance metrics.BACKGROUND

[0002] Oral hygiene is an essential aspect of overall health and well-being. Regular tooth brushing is a key component of maintaining good oral health, with dental professionals typically recommending brushing at least twice daily - once upon waking and once before bed. In recent years, the advent of smart, connected toothbrushes has enabled users to track their brushing habits more accurately and receive feedback on their oral care routines.

[0003] Mobile and web applications associated with these smart toothbrushes often provide users with data on their brushing frequency, duration, and consistency. This information can be used to encourage better oral hygiene habits, offer rewards or incentives for regular brushing, and even provide data to dental insurance companies to potentially offer benefits for consistent oral care.

[0004] However, the accuracy of brushing time data can be compromised for individuals who follow standard sleep hours. These individuals include, for example, people who work non-traditional schedules or in shift work, and students who study late into the night. The timestamp recorded by smart toothbrush applications is typically based on the current time of the user's device, which may not always accurately reflect whether a brushing session occurred after waking and / or before going to sleep.2024PF00507SUMMARY

[0005] According to an aspect of the inventive concepts, a personal care appliance is provided that includes a smart toothbrush system. The smart toothbrush system includes a processor and is configured to record brushing timestamps, and to determine AM and PM brushing compliance metrics from the brushing timestamps. The smart toothbrush system also includes a user interface for presenting the AM and PM compliance metrics to a user. The processor is configured to retrieve sleep data of the user as indicated by a sleep monitoring device, and to adjust AM and PM markers and dates of the timestamps to reflect the user’s actual sleep patterns independent of a time of day. The adjusted AM and PM markers and dates of the timestamps are used to determine the AM and PM compliance metrics.

[0006] The smart toothbrush system may include a smart toothbrush and a smart computing device, the processor may be located within the smart computing device, and the sleep monitoring device may be a sleep tracking device or a sleep settings application of the smart computing device.

[0007] The processor may retrieve at least one of the brushing timestamps and the sleep data via a cloud-based platform.

[0008] The processor may retrieve the sleep data a connection with the sleep tracking device.

[0009] An AM (morning) compliance metric may be satisfied when a brushing event occurs within a predetermined time period after the user wakes from a sleep cycle, and a PM (evening) compliance metric may be satisfied when a brushing event occurs within a predetermined time period before an onset of the sleep cycle.

[0010] According to another aspect of the inventive concepts, a processor-implemented method of operating a personal care appliance is provided. The personal care appliance includes a smart toothbrush system including a processor. The processor-implemented method including recording brushing timestamps each time a user brushes, and determining AM and PM brushing compliance metrics from the brushing timestamps,2024PF00507where the smart toothbrush system includes a user interface for presenting the AM and PM compliance metrics to a user. The processor-implemented method further includes retrieving sleep data of the user as indicated by a sleep monitoring device, and adjusting AM and PM markers and dates of the timestamps to reflect the user’s actual sleep pattern independent of a time of day, where the adjusted AM and PM markers and dates of the timestamps are used to determine the AM and PM compliance metrics.

[0011] According to still another aspect of the inventive concepts, a non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform operations. The operations include retrieving brushing timestamps from a smart toothbrush, determining AM and PM brushing compliance metrics from the brushing timestamps, and presenting the AM and PM compliance metrics via a user interface. The operations further include retrieving sleep data of the user as indicated by a sleep monitoring device, and adjusting AM and PM markers and dates of the timestamps to reflect the user’s actual sleep pattern independent of a time of day, wherein the adjusted AM and PM markers and dates of the timestamps are used to determine the AM and PM compliance metrics.BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and other aspects and features of the inventive concepts will become readily apparent from the detailed description that follows, with reference to the accompanying drawings, in which:

[0013] FIG. 1 is a schematic view showing an example of a smart power toothbrush (SPTB) according to embodiments of the inventive concepts;

[0014] FIG. 2 is a simplified circuit block diagram of the circuit components contained within the handle of the SPTB of FIG. 1 according to embodiments of the inventive concepts;

[0015] FIG. 3 illustrates an example of a dashboard view showing AM and PM brushing compliance information for each day of the week;2024PF00507

[0016] FIG. 4 is a flowchart for reference in describing an example embodiment of the inventive concepts;

[0017] FIGS. 5 and 6 are flowcharts for reference in describing examples of process S405 of FIG. 4 according to example embodiments of the inventive concepts; and

[0018] FIGS. 7-10 illustrate examples of different system-level implementations according to example embodiments of the inventive concepts.DETAILED DESCRIPTION

[0019] In the following detailed description, for purposes of explanation and not limitation, representative embodiments disclosing specific details are set forth in order to provide a thorough understanding of an embodiment according to the present teachings. Descriptions of known systems, devices, materials, methods of operation and methods of manufacture may be omitted so as to avoid obscuring the description of the representative embodiments. Nonetheless, systems, devices, materials and methods that are within the purview of one of ordinary skill in the art are within the scope of the present teachings and may be used in accordance with the representative embodiments. It is to be understood that the terminology used herein is for purposes of describing particular embodiments only and is not intended to be limiting. The defined terms are in addition to the technical and scientific meanings of the defined terms as commonly understood and accepted in the technical field of the present teachings.

[0020] It will be understood that, although the terms first, second, third etc. may be used herein to describe various elements or components, these elements or components should not be limited by these terms. These terms are only used to distinguish one element or component from another element or component. Thus, a first element or component discussed below could be termed a second element or component without departing from the teachings of the present disclosure.

[0021] The terminology used herein is for purposes of describing particular embodiments only and is not intended to be limiting. As used in the specification and2024PF00507appended claims, the singular forms of terms “a,” “an” and “the” are intended to include both singular and plural forms, unless the context clearly dictates otherwise. Additionally, the terms “comprises,” and / or “comprising,” and / or similar terms when used in this specification, specify the presence of stated features, elements, and / or components, but do not preclude the presence or addition of one or more other features, elements, components, and / or groups thereof. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0022] Unless otherwise noted, when an element or component is said to be “connected to,” “coupled to,” or “adjacent to” another element or component, it will be understood that the element or component can be directly connected or coupled to the other element or component, or intervening elements or components may be present. That is, these and similar terms encompass cases where one or more intermediate elements or components may be employed to connect two elements or components. However, when an element or component is said to be “directly connected” to another element or component, this encompasses only cases where the two elements or components are connected to each other without any intermediate or intervening elements or components.

[0023] Relative terms, such as “above,” “below,” “top,” “bottom,” “upper” and “lower” may be used to describe the various elements’ relationships to one another, as illustrated in the accompanying drawings. These relative terms are intended to encompass different orientations of the device and / or elements in addition to the orientation depicted in the drawings. For example, if the device were inverted with respect to the view in the drawings, an element described as “above” another element, for example, would now be “below” that element. Similarly, if the device were rotated by 90° with respect to the view in the drawings, an element described “above” or “below” another element would now be “adjacent” to the other element; where “adjacent” means either abutting the other element, or having one or more layers, materials, structures, etc., between the elements.2024PF00507

[0024] The drawings may in some cases focus on structural features of embodiments of the inventive concepts. However, the drawings may not be drawn to scale, and relative dimensions of different structural elements may differ from those depicted in the drawings. Further, throughout the drawings, like reference numbers refer to the same or similar elements.

[0025] FIG. 1 is a schematic view showing an example of a smart power toothbrush (SPTB) according to embodiments of the inventive concepts.

[0026] The outer contour of the SPTB 100 illustrated FIG. 1 is merely an example. It will be understood that SPTBs come in a wide variety of shapes and sizes, and that the inventive concepts are not limited to any particular SPTB design. Likewise, the shapes, relative sizes, locations and orientations of the internal components of the SPTB 100 are not limited to those illustrated in the schematic example of FIG. 1. Rather, FIG. 1 is presented for contextual purposes only in the discussion of the inventive concepts that follows.

[0027] Referring to FIG. 1, the SPTB 100 includes a brush head 101 and a handle 105. As is understood in the art, the brush head 101 may be detachable from the handle 105. This is to facilitate easy replacement of the brush head 101, as brush heads generally have a limited lifespan and require periodic replacement.

[0028] A seal 103 is located at the interface between the brush head 101 and the handle 105. The seal 103 is intended to inhibit the flow of water and contaminants into the handle 105 during use and cleaning of the SPTB 100.

[0029] The handle 105 houses a number of components, including a motor 104, main printed circuit board (PCBA) 108 and microprocessor 111. In this example, the microprocessor 111 is operatively connected to the motor 104 through the PCBA 108, and controls the motor 104 to drive a motor shaft 102. Although not shown, the motor shaft 102 is driven by the motor to reciprocate, vibrate and / or rotate the bristle portion of the brush head 101 using mechanisms that are well known in the art. The battery 106 supplies the necessary power to the components within the handle 105.2024PF00507

[0030] Reference number 107 of FIG. 1 denotes a vent, such as a Gore® vent. Such vents are often used in electric toothbrush handles to help with pressure equalization and condensation reduction. These vents allow air to pass through while keeping out water and other contaminants, which helps maintain the internal components of the toothbrush and prolong its lifespan.

[0031] In accordance with some embodiments of the inventive concepts, additional components mounted to the PCBA 108 include a Bluetooth and / or WiFi transceiver 110 and a display 112, all operatively connected to the microprocessor 111. In operation, the SPTB 100 communicates, for example via Bluetooth or WiFi, with another smart computing device running a toothbrush tracking application. Examples of such smart computing devices include smart phones, smart mirrors, smart watches, smart glasses, computer tablets, web / cloud applications, and so on.

[0032] FIG. 2 is a simplified circuit block diagram of the circuit components 200 contained within the handle 105.

[0033] Referring collectively to FIGS. 1 and 2, the microprocessor 111 is responsive to user inputs (not shown) to control the motor 104 so as to drive the drive shaft 102 as described above. Connected to the microprocessor 111 are one or more memories 114. An example of the one or more memories 114 include non-volatile memory (e.g., NAND memory) storing programs, applications, device-specific data constants, and the like. Another example is a working memory of the microprocessor when executing the programs or applications. Yet another example is one or more buffer memories for temporarily storing sensory data and the like.

[0034] Further, in accordance with embodiments of the inventive concepts, the microprocessor 111 is configured to exchange data over a WiFi and / or Bluetooth channel using the transceiver 110. The microprocessor 111 records brushing timestamps, duration, pressure and other sensor information each time a user brushes his or her teeth, and transmits this information to one or more smart computing devices such as those listed previously.2024PF00507

[0035] Generally, mobile and web-based toothbrush tracking applications gather data from smart powered toothbrushes with regards to how many times users have brushed each day, and in particular, whether the users have brushed in the morning after waking up and in the evening before going to sleep. These AM and PM brushing compliance metrics are determined from brushing timestamps provided by the smart powered toothbrush (such as the one discussed above in connection with FIGS. 1 and 2). In addition to providing the user with useful feedback relating to oral hygiene habits, the AM and PM brushing compliance metrics may be utilized for a variety of reasons, such as earning dashboard rewards, insurance benefits and other premium services such as behaviour tracking and betterment.

[0036] FIG. 3 illustrates an example of a dashboard view showing AM and PM brushing compliance information for each day of the week. In the illustrated example, the sun icon denotes a morning (AM) brushing event, and the moon icon denotes an evening (PM) brushing event. The check mark within each box denotes compliance with the AM and PM brushing protocol, and the X mark within each box denotes non-compliance with the AM and PM protocol.

[0037] Currently, applications such as those used to display the information of FIG. 3, may compute the time of the brushing events based on a current time stamp in the smart toothbrush itself. Brushing during AM hours is deemed to be a morning brushing event, while brushing during PM hours is deemed to be an evening brushing event. User interfaces and dashboards are designed to track brushing metrics in this manner and present the user with moming / evening brushing activity in this manner (as in FIG. 3). However, the use of AM / PM default timestamp systems can be problematic for those whose sleep patterns fall outside the norm. For example, assume a user working in a late-night shift goes to sleep at 1AM after brushing at 12:45am. This brushing event gets recorded by the software as a morning brushing event, causing confusion and potentially omitting an evening brushing event from the compliance metrics.2024PF00507

[0038] The inventive concepts overcome the aforementioned drawbacks by retrieving a user’s actual sleep data to determine whether a brushing event should be deemed an “AM” (morning) or “PM” (evening) event. Such sleep data has become readily available from wearable activity trackers, mobile devices and applications, and from cloud-based servers storing user activity tracking data. In the example giving previously, the user’s sleep data will show that the user went to sleep at 12:45am. This information is used to adjust the AM marker to a PM marker, i.e., the brushing event is treated as an evening brushing event when generating compliance metrics for the user. As another example, assume the user sleep data shows that the user slept for eight (8) hours and awoke at 11 :45pm. In this case, the PM marker is adjusted to an AM marker and the brushing event is treated as a morning brushing event when generating compliance metrics for the user.

[0039] FIG. 4 is a flowchart for reference in describing an example embodiment of the inventive concepts.

[0040] Referring to FIG. 4, at S401 a smart powered toothbrush monitors toothbrush usage, including creating a timestamp each time a user brushes his or her teeth. That is, a timestamp, including AM and PM markers, is created for each brushing event. In the meantime, at S402, a sleep tracker monitors sleep patterns, including the creation of timestamps for falling asleep and waking.

[0041] At S403, an oral hygiene monitoring application running on a smart computing device (such as a smartphone) retrieves the timestamps of toothbrush usage created by the smart toothbrush. And, at S404, the application retrieves the timestamps of sleep activity created by the sleep tracker.

[0042] At S405, the oral hygiene monitoring application adjusts, if necessary, the AM and / or PM markers in the brushing event timestamps to properly reflect the actual brushing activity of the user. This will be explained in greater detail below with reference to FIGS. 5 and 6.2024PF00507

[0043] At S406, the application generates the moming / evening (AM / PM) compliance metrics based on the adjusted AM and PM markers generated at S405. The compliance metrics may be graphically presented to the user, such as in the example of FIG. 3 discussed previously.

[0044] FIGS. 5 and 6 are flowcharts for reference in describing examples of process S405 of FIG. 4.

[0045] In the example of FIG. 5, at S501, an AM brushing event timestamp is processed by the oral hygiene monitoring application, and at S502, timestamps of the user’s sleep data are analyzed.

[0046] At S503 of FIG. 5, a determination is made as to whether the user went to sleep within “x” hours after the AM brushing event. Here, “x” denotes a given time period selected by the designers of the application. For example, x hours may be one (1) hour.

[0047] At S504, in the case where the user did not go to sleep within x hours of the AM brushing event, the AM marker of the brushing event is maintained. As an example, if the brushing event occurred at 9:00am, and the user did not go to sleep within x hours after 9:00am, the brushing event is considered a morning (AM) brushing event.

[0048] On the other hand, at S505, in the case where the user did go to sleep within x hours of the AM brushing event, the AM marker of the brushing event is changed to a PM brushing event. As an example, if the brushing event occurred at 1 :00am, and the user went to sleep within x hours after 1 :00am, the brushing event is considered an evening (PM) brushing event of the previous calendar day.

[0049] In the example of FIG. 6, at S601, a PM brushing event timestamp is processed by the oral hygiene monitoring application, and at S602, timestamps of the user’s sleep data are analyzed.

[0050] At S603 of FIG. 6, a determination is made as to whether the user awoke within “y” hours before the PM brushing event. Here, “y” denotes a given time period selected by the designers of the application. For example, y hours may be one (1) hour. Also, y may be the same as or different than x.2024PF00507

[0051] At S604, in the case where the user awoke within y hours before the PM brushing event, the PM marker of the brushing event is maintained. As an example, if the brushing event occurred at 9:00pm, and the user did not awake within y hours before 9:00pm, the brushing event is considered an evening (PM) brushing event.

[0052] On the other hand, at S605, in the case where the user did awake within y hours before the PM brushing event, the PM marker of the brushing event is changed to an AM brushing event. As an example, if the brushing event occurred at 11 :00pm, and the user awoke within y hours before 11 :00pm, the brushing event is considered a morning (AM) brushing event of the next calendar day.

[0053] Thus, according to the processes carried out by FIGS. 5 and 6, an AM compliance metric may be satisfied when a brushing event occurs within a predetermined time period (y) after the user wakes from a sleep cycle, and a PM compliance metric may be satisfied when a brushing event occurs within a predetermined time period (x) before an onset of the sleep cycle.

[0054] There are a number of ways in which the inventive concepts can be implemented, and examples are presented next in connection with FIGS. 7-9.

[0055] For example, referring to FIG. 7, a sleep tracker 702 and a smart toothbrush 704 communicate via Bluetooth with a mobile smart device 702. The mobile smart device 702 may run separate tracking applications for the sleep tracker 702 and the smart toothbrush 704. In addition, the tracking applications of the smart device 702 may be configured to store and / or process data in a cloud-based platform 701. In this case, the tracking application for the smart toothbrush 704 may be configured to retrieve sleep data of the sleep tracker 702 from the cloud-based platform 701 (rather than from the sleep tracker 702 directly).

[0056] In the example of FIG. 8, the sleep tracker 702 and the smart toothbrush 704 communicate (e.g., via a WiFi connection) with the cloud-based platform 701 running web-based tracking applications. Here, the smart device 703 may be configured to process brushing and sleep data retrieved from the web-based applications.2024PF00507

[0057] In the example of FIG. 9, both the sleep tracker 702 and the smart toothbrush 704 communicate via Bluetooth with respective applications running on the smart device 703. Here, a single-integrated application for both sleep tracking and toothbrush tracking may be installed on the smart device 703. Alternatively, separate sleep tracking and toothbrush tracking applications may be installed on the smart device, with the toothbrush tracking application being capable of retrieving sleep data timestamps from the sleep tracking application.

[0058] The inventive concepts are directed to the methods, devices and systems described above. In addition, the inventive concepts encompass a non-transitory computer-readable medium storing instructions that, when executed by a processor of a smart computing device, cause the processor to perform operations. The operations include retrieving brushing timestamps from a smart toothbrush, determining AM and PM brushing compliance metrics from the brushing timestamps, and presenting the AM and PM compliance metrics via a user interface. The operations further include retrieving sleep data of the user as recorded by a sleep tracking device, and adjusting AM and PM markers of the timestamps to reflect the user’s actual sleep pattern independent of a time of day, wherein the adjusted AM and PM markers of the timestamps are used to determine the AM and PM brushing compliance metrics.

[0059] While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive; the invention is not limited to the disclosed embodiments. For example, the smart toothbrush application of the inventive concepts may be configured to filter out false positives caused by anomalous sleep data.

[0060] Also, the embodiments described above utilize a sleep tracker that monitors whether the user is actually asleep or not. Sleep trackers of this type are typically wearable by user to physically monitor biological signs to determine the user’s sleep patterns, although non- wearable sleep trackers may be contemplated. However, rather than using a sleep tracker as a sleep monitoring device, in alternative embodiments the2024PF00507sleep settings of the smart computing device are utilized to as a predictive measure of the sleep patterns of the user. An example of this is described next in connection with FIG.10.

[0061] Referring to FIG. 10, the smart computing device 1003 includes an application allowing the user to set their anticipate sleep hours. Such applications are readily available in the market, and an exemplary user interface 1005 is shown in FIG. 10. The application is configured to place the device 1003 in a sleep mode at the start of the user-defined sleep cycle, and to turn off the sleep mode at the end of the sleep cycle. In addition, the application may optionally activate a wake-up alarm at the end of the sleep cycle. In some embodiments of the inventive concepts, these user-set times may be utilized as a predictor of sleep to adjust the AM and PM markers and dates when necessary in the same maimer as described in the previous embodiments.

[0062] In the example of FIG. 10, the smart toothbrush 704 communicates via Bluetooth with the toothbrush tracking application running on the smart computing device 703. Here, a separate sleep settings application may be installed on the device 703, with the toothbrush tracking application being capable of retrieving sleep settings timestamps from the sleep settings application. Alternatively, a single-integrated application for both sleep settings and toothbrush tracking may be installed on the smart device 703.

[0063] In the example given above, the sleep settings are derived from an application running on the smart device 703. However, the inventive concepts are not limited in this fashion. That is, the sleep settings may be derived from any source that offers a predictive manner of assessing the sleep pattern of a user. Examples may include a calendar app, or any installed app or preinstalled app, or even some other app via a cloud sync mechanism.

[0064] Other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a studyof the drawings, the disclosure, and the appended claims. While representative2024PF00507embodiments are disclosed herein, one of ordinary skill in the art will appreciate that many variations that are in accordance with the present teachings are possible and remain within the scope of the appended claim set. The invention therefore is not to be restricted except within the scope of the appended claims.

Claims

2024PF00507WHAT IS CLAIMED IS:

1. A personal care appliance, comprising:a smart toothbrush system including a processor and configured to record brushing timestamps, and to determine AM and PM brushing compliance metrics from the brushing timestamps, the smart toothbrush system including a user interface for presenting the AM and PM compliance metrics to a user;wherein the processor is configured to retrieve sleep data of the user as indicated by a sleep monitoring device, and to adjust AM and PM markers and dates of the timestamps to reflect the user’s actual sleep patterns independent of a time of day, wherein the adjusted AM and PM markers and dates of the timestamps are used to determine the AM and PM compliance metrics.

2. The personal care appliance of claim 1 , wherein the smart toothbrush system includes a smart toothbrush and a smart computing device, the processor is located within the smart computing device, and the sleep monitoring device is a sleep tracking device or a sleep settings application of the smart computing device.

3. The personal care appliance of claim 2, wherein the processor retrieves at least one of the brushing timestamps and the sleep data via a cloud-based platform.

4. The personal care appliance of claim 2, wherein the processor retrieves the sleep data via a connection with the sleep monitoring device.

5. The personal care appliance of claim 1, wherein an AM compliance metric is satisfied when a brushing event occurs within a predetermined time period after the user wakes from a sleep cycle, and a PM compliance metric is satisfied when a brushing event occurs within a predetermined time period before an onset of the sleep cycle.2024PF005076. A processor- implemented method of operating a personal care appliance, the personal care appliance including a smart toothbrush system including a processor, the processor-implemented method comprisingrecording brushing timestamps each time a user brushes;determining AM and PM brushing compliance metrics from the brushing timestamps, the smart toothbrush system including a user interface for presenting the AM and PM compliance metrics to a user;retrieving sleep data of the user as indicated by a sleep monitoring device, and adjusting AM and PM markers and dates of the timestamps to reflect the user’s actual sleep pattern independent of a time of day, wherein the adjusted AM and PM markers and dates of the timestamps are used to determine the AM and PM compliance metrics.

7. The processor-implemented method of claim 6, wherein the smart toothbrush system includes a smart toothbrush and a smart computing device, the processor is located within the smart computing device, and the sleep monitoring device is a sleep tracking device or a sleep settings application of the smart computing device.

8. The processor-implemented method of claim 7, wherein the processor retrieves at least one of the brushing timestamps and the sleep data via a cloud-based connection.

9. The processor-implemented method of claim 7, wherein the processor retrieves the sleep data via a connection with the sleep monitoring device.

10. The processor- implemented method of claim 6, wherein an AM compliance metric is satisfied when a brushing event occurs within a predetermined time period after the user wakes from a sleep cycle, and a PM compliance metric is satisfied when a brushing event occurs within a predetermined time period before an onset of the sleep cycle.2024PF0050711. A non-transitory computer-readable medium storing instructions that, when executed by a processor of a smart computing device, cause the processor to perform operations comprising:retrieving brushing timestamps generated by a smart toothbrush;determining AM and PM brushing compliance metrics from the brushing timestamps, and presenting the AM and PM compliance metrics via a user interface; retrieving sleep data of the user as indicated by a sleep monitoring device, and adjusting AM and PM markers and dates of the timestamps to reflect the user’s actual sleep pattern independent of a time of day, wherein the adjusted AM and PM markers and dates of the timestamps are used to determine the AM and PM compliance metrics.

12. The non-transitory computer-readable medium of claim 11, wherein the smart toothbrush system includes a smart toothbrush and a smart computing device, the processor is located within the smart computing device, and the sleep monitoring device is a sleep tracking device or a sleep settings application of the smart computing device.

13. The non-transitory computer-readable medium of claim 12, wherein the processor retrieves at least one of the brushing timestamps and the sleep data via a cloud-based connection.

14. The non-transitory computer-readable medium of claim 12, wherein the processor retrieves the sleep data via a connection with the sleep monitoring device.

15. The non-transitory computer-readable medium of claim 11, wherein an AM compliance metric is satisfied when a brushing event occurs within a predetermined time period after the user wakes from a sleep cycle, and a PM compliance metric is satisfied2024PF00507when a brushing event occurs within a predetermined time period before an onset of the sleep cycle.