3M and 3Shape Partner to Advance Digital Workflows for Orthodontics

ST. PAUL‚ Minn. – (Jan. 29, 2018) – 3M and 3Shape announced their intention to work together to advance the field of orthodontics through digital workflows supporting indirect bonding, clear aligners and other emerging digital orthodontic workflows.
“Our partnership with 3Shape puts our customers first and is designed with practitioners, their patients, and their businesses in mind. Our goal is to make it easier for Orthodontists to engage patients, provide effective treatments and run a profitable practice. The workflow will include our indirect bonding solutions, our customized lingual offering, and future new offerings in the digital orthodontic space,” said Jim Ingebrand, President and General Manager, 3M Oral Care Division.
For 3M’s and 3Shape’s joint customers, the cooperation will enable use of the 3Shape TRIOS scanner and 3Shape indirect bonding software with 3M’s IncognitoTM lingual appliance system, the ClarityTM ADVANCED brackets with APCTM Flash Free technology for indirect bonding procedures, as well as future orthodontic product offerings. These combined solutions will enable better outcome while improving productivity of the practice.
“3Shape believes that an open market with freedom of choice is in the best interest of doctors and patients. Partnering with 3M will help orthodontists provide better treatment for their patients using 3Shape’s award winning TRIOS scanner and digital workflow software with 3M’s treatment solutions in integrated workflows,” said Allan Hyldal, 3Shape Vice President, Orthodontics & Implantology.
Emerging technology is enabling new efficiencies and greater predictability in the practice of orthodontics. While technology is changing how orthodontics is practiced, the end goal remains the same —a beautiful smile and healthy teeth that will last a lifetime.
No two smiles are alike. To develop customized treatment plans for each patient’s unique clinical diagnosis, orthodontists need flexible, choice-based solutions that deliver the best outcomes for their patients.
About 3M
At 3M, we apply science in collaborative ways to improve lives daily. With $32 billion in sales, our 91,000 employees connect with customers all around the world. Learn more about 3M’s creative solutions to the world’s problems at www.3M.com or on Twitter @3M or @3MNews.
About 3Shape
3Shape is changing dentistry together with dental professionals across the world by developing innovations that provide superior dental care for patients. Our portfolio of 3D scanners and CAD/CAM software solutions for the dental industry includes the multiple award-winning 3Shape TRIOS intraoral scanner, the upcoming 3Shape X1 CBCT scanner, and market leading scanning and design software solutions for dental labs.

Two graduate students founded 3Shape in Denmark’s capital in the year 2000. Today, 3Shape has over 1,200 employees serving customers in over 100 countries from an ever- growing number of 3Shape offices around the world. 3Shape’s products and innovations continue to challenge traditional methods, enabling dental professionals to treat more patients more effectively. www.3shape.com
APC, Clarity and Incognito are trade marks of 3M Company. TRIOS is a registered trademark of 3Shape.
© 3M 2017. All rights reserved. Used under license in Canada.
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The marginal fit of lithium disilicate crowns: Press vs. CAD/CAM

Braz. oral res. vol.32  São Paulo  2018  Epub Jan 22, 2018


This study aimed to compare the vertical marginal gap of teeth restored with lithium disilicate crowns fabricated using CAD/CAM or by pressed ceramic approach. Twenty mandibular third molar teeth were collected after surgical extractions and prepared to receive full veneer crowns. Teeth were optically scanned and lithium disilicate blocks were used to fabricate crowns using CAD/CAM technique. Polyvinyl siloxane impressions of the prepared teeth were made and monolithic pressed lithium disilicate crowns were fabricated. The marginal gap was measured using optical microscope at 200× magnification (Keyence VHX-5000, Japan). Statistical analysis was performed using Wilcoxon test. The lithium disilicate pressed crowns had significantly smaller (p = 0.006) marginal gaps (38 ± 12 μm) than the lithium disilicate CAD/CAM crowns (45 ± 12 μm). This research indicates that lithium disilicate crowns fabricated with the press technique have measurably smaller marginal gaps compared with those fabricated with CAD/CAM technique within in vitro environments. The marginal gaps achieved by the crowns across all groups were within a clinically acceptable range.

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Do Signs of Attention-Deficit/Hyperactivity Disorder Increase the Odds of Dental Caries? A Case-Control Study

Caries Res 2018;52:212–219


Attention-deficit/hyperactivity disorder (ADHD) is a behavioural disorder that can affect one’s performance in activities of daily living and can exert a negative impact on the oral health of children.  
Objective: The aim of this work was to determine the association between ADHD (signs and executive functions) and dental caries in children aged 7–12 years.  

Methods: A case-control study was conducted with 532 children in the city of Diamantina, Brazil. The case group was composed of children with caries and the control group was composed of children without caries. The children were submitted to a clinical oral examination for the determination of caries and neuropsychological evaluations of intellectual function and executive function. Other signs of attention deficit and hyperactivity were investigated using the Swanson, Nolan, and Pelham scale administered to parents/guardians and teachers. Socioeconomic and demographic characteristics were also evaluated. Statistical analysis involved the McNemar χ2 test and conditional logistic regression.  

Results: The multivariate logistic regression model demonstrated that monthly household income and parental reports of signs of attention deficit were significantly associated with the occurrence of dental caries.  

Conclusion: Children considered by their parents/guardians to have attention deficit have a greater chance of exhibiting dental caries, independently of household income.

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Clinical performance of full rehabilitations with direct composite in severe tooth wear patients: 3.5 years results



To evaluate the mid-term clinical performance of direct composite restorations placed in patients with pathological tooth wear needing full rehabilitation with an increase of vertical dimension of occlusion.


In a prospective trial 34 patients (34.0 ± 8.4 years; 25 males, 9 females) were treated with a minimal invasive additive technique using composite restorations. The restorative treatment protocol was to provide all teeth with composite build-up restorations in an increased vertical dimension of occlusion (VDO) using the DSO-technique. Recall appointments were planned after 1 month, 1 and 3 years after treatment. Restorations were scored for clinically acceptability (FDI-criteria) and scores 4 and 5 were recorded as clinically unacceptable. Frequencies of failures and Kaplan Meier survival curves are presented and effect of relevant variables was calculated with a multifactorial Cox regression (p<0 .05="" p="">


1256 restorations were placed, 687 anterior, 324 premolar, and 245 molar restorations. After a mean observation time of 39.7 months a total of 69 failures were observed, of which 61 restorations were repaired (score 4) and 8 were replaced (score 5). Most common reasons for failure were (chip) fractures (n=43) and caries (n=11). Placement of anterior restorations in two sessions led to significant 4.6 times more failures then placed in one session.


In patients with severe tooth wear direct composite resin restorations show annual failure rates of 94.8% for success and 99.3% for survival after full rehabilitations in an increased vertical dimension of occlusion after a period of 3.5 years.
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