[Login](/en-us/user-account/login) or [Register](/en-us/user-account/registration) to receive relevant, timely communication, take CE courses and more. 
Follow us on Instagram and create an account on ProShop for easy ordering for yourself or your office.

Terms And Conditions

Privacy

Consumer Health Data Privacy Policy

Your Privacy Choices

About Us

FAQs

Contact Us

Site Map

Join Our Crest + Oral-B Professional Community

View all Courses

Archived CE course  PDFs

Faculty and Student Quick Links

View My Certificates

Courses

View All Case Studies

Case Studies

View All Case Challenges

Case Challenges

Continuing Education

Dental Hygienist Resources #HygienistProud

Faculty Resources

Student Resources

Graduate Resources

Dental Assistant Resources

Dental Events

Practice Management

Whole Body Health

Dental Podcasts

Interactive Modules

Equality and Inclusion

Professional Resources

Patient education

Children's Dental Health

Pregnancy

Conversational Spanish

For Your Patients

Shop all products

Featured products

Request Teach & Learn

Sustainability

Dental Research Database 

Oral-B iO - Why recommend oscillating rotating technology

Crest - Why Stannous Fluoride

Products & Research

Please log into your account to update your profile, resume your course progress, complete a course test, or to manage your certificates and assignments.


Create New Course Assignment

Create New Case Assignment

Review Course Assignments

Review Case Assignments

Dashboard

Enter Assignment Number

My Profile

Profile

Introduction

Factors Influencing the Appearance of Teeth

Natural Color of Teeth – The Shade of a Clean Tooth

Chromogens On and In Teeth – Definitions and Origins

Variations in Observed Tooth Discoloration in Aging Patients – Impact on Whitening Commercialization

The Basics: How we see color

Removal of Extrinsic Stains

Decolorization of Stains: Mechanisms of Oxidative Tooth Whitening

Tooth Whitening – Approaches 

Ingredients used in Oxidative Whitening

Concentration of Ingredients Used in Oxidative Whitening

Dose of Ingredients Used in Tooth Whitening

Duration of Treatment – Retention of Ingredient (contact time)

Design Principles for Oxidative Tooth Whitening – Factors Affecting Efficacy

Design Principles for Oxidative Tooth Whitening: Factors Affecting Soft Tissue Tolerability

Design Principles for Oxidative Tooth Whitening: Factors Affecting Dentinal Hypersensitivity

Design Principles for Oxidative Tooth Whitening: Factors Affecting Safety to Hard Tissues and Restorations

Design Principles for Oxidative Tooth Whitening: The Addition of Light

In Office Treatment

Mouthguard/Tray-Based Bleaching

Strip Based Systems

Paint on Whitening - Pens & Applicators

Emulsions

Toothpaste, Mouthrinse & Tooth Gels

Design Principles for Oxidative Tooth Whitening – Delivery Vehicles – Types of Products 

Key Considerations for the Evaluation of Clinical Studies for the General Practitioner

Summary

References/Additional Resources

How Whitening Works

Learn about Tooth Whitening Approaches from How Whitening Works - a free dental continuing education course which discusses mechanisms that influence efficacy and tolerability of whitening products including concentration, dose and contact time as well as strengths and limitations of different whitening delivery systems.

Tooth Whitening – Approaches | How Whitening Works | dentalcare.com

Tooth Whitening – Approaches | How Whitening Works | Continuing Education Course on dentalcare.com