Quadrant vs Interdisciplinary Digital Dentistry Debate

Dr. Ahmad Al-Hassiny and Dr. Luken de Arbeloa debate quadrant vs. interdisciplinary digital dentistry - who's right, and when does each approach actually win?

Ahmad runs a 41-chair family practice in New Zealand where same-day CEREC crowns are a daily workflow. Luken comes from the DSD world, where full-mouth interdisciplinary planning is the foundation. In this episode, they go head-to-head on the two dominant approaches to digital dentistry, comparing workflows, ROI, patient communication, and what it really takes to implement each in a real practice.

The conversation covers a lot of ground, including how AI is changing single-visit crown design, why the lab bill can drop by 80% when you bring manufacturing in-house, the communication skills dentists don't learn in dental school but can't succeed without, and the mindset shift that separates dentists who go fully digital from those who never get past the scanner.

If you're trying to figure out which direction to take your digital practice, this debate is one of the most honest and practical conversations you'll find on the topic.

🎙️ This episode was originally recorded for Dr. Luken de Arbeloa's Quarterback Dentist podcast (DSD) and is reposted here with permission as part of the Digital Dentistry Decoded podcast series.

00:00 - Preview clip

00:26 - Introduction and episode overview

01:50 - Dr. Ahmad Al-Hassiny background - 41-chair family practice

03:29 - What digital dentistry actually looks like in daily practice

09:06 - Patient workflow - which records to take and when

13:00 - Treatment decisions in a group practice setting

14:47 - Why speed matters in same-day dentistry (and when it doesn't)

18:00 - The interdisciplinary approach explained

21:36 - How dentists evolve from quadrant to full-mouth planning

24:10 - Patient communication and why case acceptance fails

27:18 - Pre and post-case acceptance - Luken's framework

32:11 - Communication as the most critical skill in dentistry

38:13 - The biggest innovation in same-day dentistry right now

39:33 - AI in CAD/CAM - how good is it, really?

41:08 - The two main challenges to implementing one-day dentistry

44:33 - 3D printing vs milling machines in 2025

46:06 - Practical advice for dentists who want to start this week

51:00 - Digital dentistry is a team sport - closing thoughts

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