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Assessment of the Mouth

Assessment of the Mouth

A thorough mouth assessment, including inspection and palpation of the lips, gums, tongue, tonsils, uvula, and pharynx, is crucial in detecting potential health issues. Diseases ranging from oral cancer to systemic conditions like diabetes could be identified early through careful oral examination. This article provides a detailed guide on conducting a comprehensive mouth assessment.
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.

Tooth Anatomy

Tooth Anatomy

The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...

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Related Experiment Video

Updated: Jul 27, 2025

$Subjective Refraction Test Using a Smartphone for Vision Screening$

Subjective Refraction Test Using a Smartphone for Vision Screening

Published on: October 18, 2024

A Smartphone Application for Personalized Tooth Shade Determination.

Tomoya Kusayanagi¹, Sota Maegawa¹, Shuya Terauchi¹

¹Mechanical Engineering Program, Graduate School of Engineering, Kogakuin University, 1-24-2 Nishishinjuku, Shinjuku-ku, Tokyo 163-8677, Japan.

Diagnostics (Basel, Switzerland)

|June 10, 2023

Summary

This summary is machine-generated.

A new iPhone app uses AI and ambient light sensors for consistent tooth shade determination at home. This tool helps users accurately evaluate teeth whitening product effectiveness, supporting evidence-based choices.

Keywords:

esthetic dentistry mobile health pTShaDe personalized tooth shade determination at home relative quantitative tooth shade determination method smartphone smartphone application tooth color measurement tooth whitening

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Area of Science:

Dentistry
Biomedical Engineering
Computer Science

Background:

Evaluating at-home teeth whitening product effectiveness is challenging due to limited reliable tooth shade determination methods.
Accurate and consistent tooth color measurement is crucial for assessing whitening efficacy.

Purpose of the Study:

To develop and validate an iPhone application for personalized tooth shade determination.
To ensure consistent illumination and tooth appearance conditions for reliable color measurements.
To assess the feasibility of the app for evaluating teeth whitening results.

Main Methods:

Developed an iPhone app incorporating an ambient light sensor for standardized illumination.
Utilized facial landmark detection (AI) to ensure consistent mouth opening and tooth visibility.
Captured sequential dental photographs in selfie mode for pre- and post-whitening analysis.
Measured tooth color parameters (L*, a*, b*) and color difference (∆Eab) to evaluate app performance and whitening effectiveness.

Main Results:

The app demonstrated high consistency in tooth appearance measurements, with low coefficients of variation (<0.0256 for L*, <0.2748 for a*, <0.1053 for b*).
The app successfully evaluated teeth whitening efficacy, detecting minimum ∆Eab color differences of 1.3 units after pseudo-staining.
The developed method provides a reliable, relative quantification for at-home tooth shade assessment.

Conclusions:

The developed iPhone app offers a practical and consistent method for personalized tooth shade determination.
This technology can empower consumers to make evidence-based decisions when selecting teeth whitening products.
The app represents a significant advancement in accessible tools for monitoring dental aesthetics.