Dr. Sandra Khong Tai

Orthodontist  ·  Global Speaker  ·  Author

Transforming smiles with expertise & passion

A world-leading voice in clear aligner orthodontics — with more than 6,000 cases treated, a definitive textbook translated into 13 languages, and audiences on every continent.

Dr. Sandra Khong Tai

Dr. Sandra Khong Tai · BDS, MS, FRCD(C)

0Clear aligner cases
0Textbook translations
0Years in practice
SapphireInvisalign designation

Trusted by leading institutions & conferences worldwide

UBC Dentistry American Association of Orthodontists University of Pennsylvania University of the Pacific Royal College of Dentists of Canada Align Technology Faculty American College of Dentists American Board of Orthodontics EBAO — European Board of Aligner Orthodontics British Columbia Society of Orthodontists Canadian Association of Orthodontists

01 — Meet Dr. Tai

Orthodontics is changing faster than at any point in its history. Dr. Sandra Khong Tai is one of the clinicians writing that change — in the clinic, in the literature, and on stages around the world.

Invisalign Sapphire Provider 2026

As an Invisalign Sapphire Provider, Dr. Tai has successfully treated more than 6,000 cases with clear aligners — using the latest digital technology to design smiles and treat malocclusions to excellent clinical outcomes.

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Dr. Sandra Khong Tai presenting on clear aligner orthodontics
Clear Aligner Technique textbook
Aligner Resources education
Astra Orthodontics practice

Education

Shaping the next generation of orthodontists

As Clinical Assistant Professor at UBC and Adjunct Assistant Professor at the University of the Pacific and the University of Pennsylvania, Dr. Tai bridges academic rigour with clinical innovation — mentorship that has shaped hundreds of residents now practising across North America and beyond.

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The Textbook

The definitive guide to clear aligner treatment

“Clear Aligner Technique” — now in its second edition with Quintessence Publishing — is the reference text for clinicians mastering aligner therapy, translated into 13 languages and taught in programs worldwide.

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Mini-Residency

Aligner Resources — mastery through mentorship

Her comprehensive 12-month Mini-Residency delivers 30+ hours of on-demand instruction — from foundational principles to advanced technique — alongside a growing library of focused web modules. For full immersion, a two-day clinical experience at Astra Orthodontics offers live patient observation and personalised coaching.

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Clinical Practice

Transforming smiles at Astra Orthodontics

Serving Greater Vancouver with clinics in Richmond and Burnaby, Astra Orthodontics delivers Invisalign, digitally 3D custom braces, and fully digital treatment planning — personalised care that has transformed thousands of smiles over three decades.

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Clear Aligner Technique — Second Edition, by Dr. Sandra Khong Tai
Second Edition · 2025

The book that taught the world aligner orthodontics

From treatment planning and biomechanics to complex case management — 296 pages and 1,300 illustrations of evidence-based protocols, refined across two editions and adopted by universities worldwide.

13Languages
2Editions
1,300Illustrations
This textbook is a must-have reference for the dentist or orthodontist who performs clear aligner treatment.

Dr. Robert L. Boyd, DDS, MEd

Professor, Department of Orthodontics, University of the Pacific

I was thoroughly impressed by this extraordinary contribution to 21st century orthodontics… it should be placed in the hands of every dental and orthodontic student.

Dr. Rebecca Poling, DDS, MSD

Former Orthodontic Educator, NYU College of Dentistry

The comprehensiveness and quality of this book are excellent — I highly recommend it as a consistent resource for delivering quality clear aligner outcomes.

Dr. Mazyar Moshiri, DMD, MS

Assistant Clinical Professor, St. Louis University; Faculty, Align Technology

This well-presented textbook serves as an excellent companion to a practicing clinician as well as an institutional department.

Dr. Arun Nayak, BDS, PhD

Diplomate, Indian Board of Orthodontics