October 2019 CAD/CAM 3D Bioprinting and Endodontics 3D Printing and Restorative Dentistry Craniofacial Surgery and CALIFORNIA DENTAL ASSOCIATION Journa 3D Printing Digital Workflow and Three-Dimensional Manufacturing Processes: New Tools Shaping Clinical Practice Paulo G. Coelho, DDS, PhD Vol 47 N o 9 Want to save more on supplies than you pay in dues? There’s no better time to be an association member! Your benefits now include big savings and free shipping on dental supplies and small equipment through The Dentists Supply Company. Get the most value from your membership by leveraging collective buying power for your own practice. SHOP ONLINE AND START SAVING TODAY Oct. 2019 CDA JOURNAL, VOL 47, Nº10 DEPARTMENTS 625 The Editor/The Wrong Questions 629 Impressions 679 RM Matters/Workers’ Compensation: Your Obligations as an Employer 685 Regulatory Compliance/Practice Transition and Patient Records 690 Tech Trends 629 FEATURES 635 Digital Workflow and Three-Dimensional Manufacturing Processes: New Tools Shaping Clinical Practice An introduction to the issue. Paulo G. Coelho, DDS, PhD 639 CAD/CAM — The Future Is Here: Overview of Restorative Digital Footprint This article describes the beginnings of CAD/CAM and covers innovations that allow dentists to be more efficient, more precise and contemporary. Gisele Neiva, DDS, MS, MS 645 Current and Future Applications of 3D Bioprinting in Endodontic Regeneration — A Short Review This manuscript is a brief overview of how 3D bioprinting may be relevant to the future of regenerative endodontics. Cristiane M. França, DDS, MS, PhD; Ashley Sercia, BS; S. Prakash Parthiban, PhD; and Luiz E. Bertassoni, DDS, PhD 653 3D Printing of Dental Restorative Composites and Ceramics — Toward the Next Frontier in Restorative Dentistry This article discuss examples of printed dental resins, composites and ceramics and highlights the applications that will pave the way for the emergence of 3D printing as a mainstream method in restorative dentistry. Luiz E. Bertassoni, DDS, PhD 667 Applications of 3D Printing in Craniofacial Surgery This review article describes the ways that 3D printing technology has been incorporated into several aspects of plastic surgery reconstructions. Maxime M. Wang, BA; Amel Ibrahim, MD, PhD; Lukasz Witek, PhD; Paulo G. Coelho, DDS, PhD; and Roberto L. Flores, MD OCTOBER 2 0 1 9 623 CDA JOURNAL, VOL 47, Nº10 Volume 47, Number 10 JournaCALIFORNIA DENTAL ASSOCIATION October 2019 CDA Classifieds. Free postings. published by the Editorial Production Manuscript California Kerry K. Carney, DDS, CDE Randi Taylor Submissions Priceless results. Dental Association EDITOR-IN-CHIEF SENIOR GRAPHIC DESIGNER www.editorialmanager. 1201 K St., 14th Floor [email protected] com/jcaldentassoc Sacramento, CA 95814 Upcoming Topics Ruchi K. Sahota, DDS, CDE 800.232.7645 November/General Topics ASSOCIATE EDITOR Letters to the Editor cda.org December/Dental Student Research www.editorialmanager. Brian K. Shue, DDS, CDE January/Importance com/jcaldentassoc ASSOCIATE EDITOR CDA Officers of Research and Dental R. Del Brunner, DDS Education Subscriptions Gayle Mathe, RDH PRESIDENT Annual subscriptions are [email protected] SENIOR EDITOR Advertising available to association members at a rate of $36. Richard J. Nagy, DDS Paulo G. 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The association does not assume liability for the content of advertisements, nor do advertisements constitute endorsement or approval of advertised products or services. Copyright 2019 by the California Dental Association. All rights reserved. 624 OCTOBER 2 01 9 Editor CDA JOURNAL, VOL 47, Nº10 The Wrong Questions Kerry K. Carney, DDS, CDE If they can get you asking the wrong questions, they don’t have to worry about the answers. —Thomas Pynchon (1973) “Nicotine, despite what the cigarette companies say, is not like caffeine. It’s a neurotoxin; it hat quote was at the bottom of an email I received the other changes your brain and your nervous system … “ day. Usually, I do not even read the bon mots that, like a family motto, some folks feel compelled Tto share in their messages. However, talk about tobacco harm reduction and not The event promotes itself as a forum this one made me stop and think. nicotine addiction? Maybe it was a typo. for global public health debate. According Everywhere I look, important issues The next line in the email stated in to the website, the GFN is “unique among are being obscured by misdirection. In bold type: “For the first time in 120 years, conferences on nicotine and smoking, politics, promotions of logical fallacies we could eliminate the death and disease we ensure that consumer and consumer are part of the standard playbook. caused by the cigarette rolling machine.” advocacy organisations participate as But that tactic is becoming more and The implication is that darn machine well as manufacturers.” Their program more evident in the advertising and is the public health problem. If we just honors Michael Russell, who may have press releases about e-cigarettes. promoted alternative nicotine delivery been the first to articulate the “tobacco Editors receive frequent “pitches” systems, we could thwart the dangerous harm reduction” ideology. GFN reiterates from publicists. This summer, a public “cigarette rolling machine.” One might his tenet that, “Smoking tobacco is the relations firm contacted me with wonder, if that machine is as dangerous most harmful way of using nicotine. It the following email subject line: as a forum presenter claimed, then in is the tars and gases in cigarette smoke Global conf. aims to eliminate death accordance with the tobacco industry’s that are harmful to health. Many people from smoking through safer nicotine delivery “tobacco harm reduction initiative,” find it hard to stop smoking because It was stunning. In a dozen words, it would pull the plug on those bad they find it hard to go without nicotine. the public health issue of cigarette machines. Why would tobacco companies Making available lower-risk products smoking and its causal relationship with continue to promote cigarettes and helps people to switch from smoking sickness and death was confounded smoking on a global scale if they are and avoid the associated risks. This is with the idea that the whole problem dedicated to tobacco harm reduction? known as ‘tobacco harm reduction.’”1 is that darn cigarette. The spin is: (Or maybe I have it all wrong. Maybe The whole idea of “harm reduction” That smoldering cancer stick is the cigarette rolling machine is so works to the advantage of the tobacco the issue. If we all get behind an dangerous because it actually crushes industry in that it “disentangles the alternative nicotine delivery system that consumers. No, that can’t be right). I notion that (substance) use equals circumvents the cigarette, then “Bob’s guess the question being asked is: How harm and instead identifies the negative your uncle” — everything will be fine, can we get rid of dangerous cigarettes consequences of (substance) use as there is no public health problem. and still enjoy nicotine? But is that really the target for intervention rather The pitch went on to say: “Last week’s the question we should be asking? than (substance) use itself.”2 This is Global Forum on Nicotine in Warsaw, Then something dangerous happened. how tobacco companies can support Poland, brought together 600 delegates from I was alone with my computer and I alternative nicotine delivery systems 70 countries — experts and advocates in was bored.