DENTAL TRIBUNE The World’s Dental Newspaper · Asia Paciﬁc Edition PUBLISHED IN HONG KONG www.dental-tribune.asia DENTAL ANXIETY In a recent study, researchers found that techniques such as tell-show-do and live modelling are very effec- tive in helping children manage dental anxiety. ” Page 03 INTERVIEW Dental Tribune International spoke with lead researcher Dr Nebu Philip, from the University of Queensland in Australia, to discuss the develop- ment a new product to help fight dental caries. ” Page 09 VOL. 17, NO. 01 REALISTIC MOUTH MODELS New research being carried out in collaboration with the University of Birmingham will allow dental stu- dents to practice on realistic mouth models that possess the tactile qua- lities of real mouths. ” Page 10 AOSC 2019 oncrease attendance by 20% woth more than 900 professoonals By DTI SINGAPORE: Recently the Associa- tion of Orthodontists (Singapore) Congress (AOSC), organised by the Association of Orthodontists (Sin- gapore), took place at the Marina Bay Sands hotel in Singapore. With an abundance of relevant informa- tion and an increase in attendees over the previous year, organisers of the event believe it reaffirms the show’s position as the must-attend orthodontic event in the Asia Pacific region. With an increase of 20 per cent over the previous year’s numbers, more than 900 professionals from as far away as Oman came together to attend the three-day event. “We are humbled by the overwhelming response received at our sold-out workshops and staggering delegate numbers. Additionally, the steady At this year’s AOSC, there was a 20 per cent increase in attendees, with more than 60 per cent coming from overseas. (Photograph: AOSC) Study ondocates potentoal of berry extract to fight off dental bacteroa growth of delegates attending from international countries also marks a great achievement for AOSC. We are proud to have grown from a lo- cally reputable show to one that is increasingly being recognised in- ternationally within the orthodon- tic community,” said Dr Mohan Senathirajah, President of the Asso- ciation of Orthodontists (Singapore). Attending this year’s event were key opinion leaders such as Profs. David Sarver, Birte Melsen and Rolf Behrents. Additionally, 30 exhibit- ing companies and over 100 repre- sented brands were present at the exhibition held alongside the con- ference. Attendees of the congress were able to gain information about the latest products and innovations in the industry, with leading ortho- dontic companies such as In- visalign, Ormco, Dentsply Sirona and others participating. Other events that took place during the congress included the Residents’ Symposium. Attended by over 80 participants, attendees were treated to an afternoon of in- sightful discussions and a tour of the new National University Centre for Oral Health, Singapore. Another highlight of the congress was the scientific poster competition, which saw a doubling of entries. After a series of pre-event activities to raise funds for the Children’s Cancer Foundation, a cheque for SGD21,000 was presented to Neo Lay Tin, ex- ecutive director of the foundation, at the opening ceremony of the congress. “From our modest beginnings back in the days, we have since scaled greater heights by attract- ing over 900 attendees and ex- panding our exhibition space. Riding on this wave of success, we will strive to continue to develop the show alongside the commu- nity,” concluded Dr Seow Yian San, chairperson of the AOSC 2019 organising committee. AD By DTI BRISBANE, Australia: A recent study has suggested that concentrated extracts of polyphenol-rich fruits such as cranberries and blueberries could prove beneficial for combat- ing certain bacteria in dental bio- film. The findings of the research, conducted at the University of Queensland in Brisbane and the University of Bristol in the UK, in- dicate the potential for cranberry phenols to modulate the pathoge- nicity of dental plaque. The objective of the study was to continue testing natural compo- nents from fruit as bacteria inhib- itors, and to further the research of their effects on oral health. The researchers tested high-qual- ity extracts, prepared as bioactive molecules from cranberries, blue- berries and strawberries, as well as a combination of the three berry extracts called Orophenol, on 24-hour-old Streptococcus mutans biofilms and compared them to the effects of a vehicle control. The study found that higher concentrations of cranberry ex- tract significantly reduced the bac- teria’s metabolic activity and acid production and bacterial/exopoly- saccharide biovolumes, as well as resulted in a less compact archi- tectural structure than that of the control-treated biofilms. Orophe- nol also had a significant impact, but slightly lower than that of cranberries. Only the highest con- centration level of blueberry ex- tract significantly reduced meta- bolic activity and acidogenicity, but did not significantly affect the biovolume or biofilm architecture. The extract from strawberries had no significant impact on any bac- terial activity. No extract killed the bacteria. Continued research goes into fruit extracts for oral health care and bacteria management. Distinguished by innovation Healthy teeth produce a radiant smile. We strive to achieve this goal on a daily basis. It inspires us to search for innovative, economic and esthetic solutions for direct ﬁlling procedures and the fabrication of indirect, ﬁxed or removable restorations, so that you have quality products at your disposal to help people regain a beautiful smile. Phytonutrient-rich cranberries and blueberries may help inhibit biofilm according to a new study. 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02 ASIA PACIFIC NEWS Dental Tribune Asia Paciﬁc Edition | 01/2019 Frustratoon of beong unable to anaesthetose a patoent sufficoently? By DTI Many clinicians have experienced the frustration of being unable to anaesthetise a patient sufficiently despite trying various approaches or using a combination of amides. A variety of failures are known by spe- cialists, for example, one spot in a tooth cannot be touched, everything is numb except the tooth, the last bit of caries cannot be removed with- out pain or intra-pulpal injection is the last option in the case of irre- versible pulpitis, et cetera. Mandib- ular teeth are the most common teeth to be associated with the fail- ing of anaesthesia and it is even more frustrating that it usually concerns the same patients, therefore the specialist tends to become nervous when the patient’s name appears in the appointment book once again. The main problem with failing anaesthesia lies with the dental curriculum, because dental schools do not allocate enough time, lec- tures and practical sessions to the subject. Often, the topic is interwo- ven within different subjects and it is assumed that students assim- ilate the information and will apply it successfully in the clinic. Infiltra- tion anaesthesia, mandibular nerve block anaesthesia and intra-liga- mentary anaesthesia are probably taught in every dental school as the “mainstream” techniques. However, what one should do in case of fail- ure probably depends more on who is involved in teaching the course. A plethora of solutions are taught in dental school by different clini- cal teachers, ranging from combin- ing amides and combining tech- niques to increasing the dosage or to injecting intraosseously. By the way, why is a carpule 1.7 or 2.2 mil- lilitres in volume, irrespective if AD Unlike nerve block anaesthesia, the key to provide successful dental local anaesthesia is intraosseous anaesthesia, which allows the anaesthetic to reach any nerves, no matter where they branched off. (Photograph: Nejron Photo/Shutterstock) articaine or lidocaine is used and irrespective if plain or adrena- line-added solutions are used? There does not seem to be an answer. The literature is inconclusive about which techniques should be used, however more and more ev- idence of anatomical variations in the innervation of teeth surfaces have been found, as dental and maxillofacial radiologists diagnosed and identified neurovascular canals on CBCT images. These variations in anatomy were unknown or over- looked for many years, which ex- plains why, for over 100 years, den- tal local anaesthesia has not seen a lot of innovation. However, now that there is evidence of mandibu- lar and maxillary anatomical vari- ations in innervation, the knowl- edge should be applied to ensure profound and efficient dental local anaesthesia for all patients. There- fore, if local anaesthetic can be ad- ministered directly into the can- cellous bone, the teeth will become anaesthetised irrespective of which nerve branch provided innervation to the teeth or a particular tooth. It sounds simple, and it is. The principle of intraosseous anaesthesia is not new. It was first described in 1906 by Dr Cavaroz, who introduced direct injection into the cancellous bone as a better al- ternative to mandibular nerve blocks (known as the Halsted block). In fact, every infiltration anaesthesia is an intraosseous anaesthesia. The rea- son why it works relatively well in the maxilla, in contrast to the man- dible, is because the cortical plate is thin and porous in the maxilla. Therefore, the cortical plate of the mandible requires to be perfo- rated in order to administer the local anaesthetic successfully and effi- ciently. This technique can obviously also be used in the maxilla. Advan- tages of the technique include the minimal collateral anaesthesia (no numb lip and no numb tongue), the immediate onset of the anaesthesia, the relatively short duration of the anaesthesia (depending on the vol- ume injected and the concentration of the vasoconstrictor) and the fact that multiple quadrants can be treated in one visit, causing mini- mal discomfort for the patient. The key to success is the slow injection of the anaesthetic, which allows for the product to diffuse gently into the cancellous bone, causing pro- found and reliable anaesthesia of the pulp of the tooth, the tooth’s periodontal ligament and the at- tached gingiva. Additional soft tis- sue anaesthesia is required if more elaborate treatment than simple restorative treatment is planned—a simple exodontia or deep calculus removal, for instance. The comfort of the patient is paramount and when the patients are comfortable, so will the dentist be. 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Dental Tribune Asia Paciﬁc Edition | 01/2019 ASIA PACIFIC NEWS 03 Recent study onvestogates dental anxoety and dental behavoour on choldren By DTI MANGALORE, India: A key reason be- hind people not attending regular oral health check-ups can be anxi- ety stemming from their first expe- rience in a dental setting as a child. In a recent study, researchers from India investigated whether there is an association between the temper- ament characteristics of children 3–5 years old, dental anxiety, and their dental behaviour. Results were gathered over three check-ups, with the aim of determining the effec- tiveness of behaviour management techniques such as tell-show-do and live modelling. In a recent study, researchers found that techniques like live modelling and tell-show-do are very effective in helping children manage dental anxiety. (Photograph: Creativa Images/Shuterstock) In the study, led by Dr Baranya Shrikrishna Suprabha from the De- partment of Paedodontics and Pre- ventive Dentistry at the Manipal College of Dental Sciences, the re- searchers examined 100 children aged 3–5 years who were attending their initial dental visit accompa- nied by a parent. Speaking to Dental Tribune In- ternational, Suprabha said, “When we reviewed the literature, the role of temperament in the dental be- haviour of preschool children during the initial dental visit was unclear. Earlier studies had been carried out in older age groups of children and not necessarily during the initial dental visit. The association of tem- perament with dental anxiety, which has been shown to have an import- ant role in the behaviour of the child in the dental clinic, was also investigated.” During the initial oral examina- tion of the children and their oral prophylaxis, the behaviour of the children was measured using the Frankl’s behaviour rating scale, and temperament was assessed using the Emotionality, Activity, Shyness Temperament Survey for Children. “The facial image scale used to as- sess the anxiety in our study has been shown to have good validity and reliability. Though we did not assess the validity and reliability again, all children responded easily to the scale,” explained Suprabha. According to the study’s results, techniques like live modelling and tell-show-do are very effective in modifying a child’s behaviour. Ad- ditionally, children showed improve- ment in their behaviour with every subsequent visit. The researchers noted that proper assessment of chil- dren’s behaviour helps the dentist to execute the required treatment plan in the most appropriate manner. The study, titled “Association of temp er a ment w it h dent a l anxiety and behaviour of the p r e s c h o o l c h i l d d u r i n g t h e initial dental visit”, was pub - lished on 6 Febr uar y 2019 in the European Jour nal of Oral Sciences ahead of inclusion in an issue. AD Tetric® N-Line High-quality composites for esthetic anterior and posterior restorations High-quality composites for esthetic anterior and posterior restorations One efficient solution for all cavity classes MORE THAN MIO . s e r u g ﬁ l s e a s n o d e s a B * RESTORATIONS PLACED* Ivoclar Vivadent AG Bendererstr. 2 | 9494 Schaan | | Tel. +423 235 35 35 | Fax +423 235 33 60
04 ASIA PACIFIC NEWS Dental Tribune Asia Paciﬁc Edition | 01/2019 New study adds to evodence of relatoonshop between erectole dysfunctoon and peroodontal dosease By DTI GUANGZHOU, China: Growing con- cern over an association between erectile dysfunction and periodon- tal disease has propelled more re- search into the subject in recent years. A new systematic review and meta-analysis from the Jinan University in Guangzhou has found further evidence of a relationship bet ween the t wo. The resu lts showed that men with periodon- tal disease were nearly three times AD register for FREE – education everywhere and anytime – live and interactive webinars – more than 1,000 archived courses – a focused discussion forum – free membership – no travel costs – no time away from the practice – interaction with colleagues and experts across the globe – a growing database of scientific articles and case reports – ADA CERP-recognized credit administration www. DTStudyClub.com Join the largest educational network in dentistry! more likely to be at risk of erectile dysfunction. The researchers conducted quality assessments and sensitiv- ity analysis of the five case–control studies that met the eligibility cri- teria. These studies included data on over 200,000 participants. The findings suggest that periodontal disease should be included among the risk factors for erectile dys- function. According to the World Health Organization, severe periodontal disease was estimated to be the 11th most prevalent disease globally in 2016. Both periodontitis and erec- tile dysfunction have been linked to C-reactive protein (CRP), a sub- stance produced by the liver in re- sponse to inflammation. A high level of CRP in the blood is a marker of an inflammatory condition, in- cluding inflammation of the arter- ies associated with heart disease. Scientists believe erectile dysfunc- tion and periodontitis are linked in that this same type of inflamma- tion could very well start in smaller blood vessels of both the mouth and penile area before reaching the larger arteries. A previous study from the Uni- versity of Granada in Spain, pub- lished in the Journal of Clinical Periodontology last year, showed just how serious it can get. In the study, CRP levels were higher in men who had periodontitis/erec- tile dysfunction than men with- out these health problems. Fur- thermore, men with chronic peri- odontitis were twice as likely to suffer from impotence compared with men who had healthy teeth and gingivae, suggesting that treating periodontal disease to reduce inflammation of the gin- givae can result in improved erec- tile function. The study, titled “Updated evi- dence of association between peri- odontal disease and incident erec- tile dysfunction”, was published in the January 2019 issue of the Jour- nal of Sexual Medicine. ADA CERP is a service of the American Dental Association to assist dental professionals in identifying quality providersof continuing dental education. ADA CERP does not approve or endorse individual courses or instructors, nor does it imply acceptance of credit hours by boards of dentistry. Reducing the risk of periodontitis may help reduce the risk of erectile dysfunction. (Photograph: LightField Studios/Shutterstock)
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06 ASIA PACIFIC NEWS Dental Tribune Asia Paciﬁc Edition | 01/2019 Researchers present prototype of onteractove devoce that can be worn on the mouth By DTI AUCKLAND, New Zealand: Scien- tists in New Zealand have devel- oped ChewIt, a novel user-config- urable interface device worn in the mouth. The prototype, which is no larger than a piece of chew- ing gum, may soon allow people to answer their phones by simply biting on the soft ChewIt casing. The research project in which ChewIt was developed was led by Dr Suranga Nanayakkara, an as- AD sociate professor at the Auckland Bioengineering Institute who made international headlines in recent years with another prototype de- vice, the FingerReader. Wearing it on a finger, the user points at words, such as those on the spine of the book or in a restaurant menu, and these are then translated to voice. The miniature ChewIt prototype shown alongside a piece of chewing gum. (Photograph: University of Auckland) The custom-made f lexible printed circuit board of the tiny ChewIt is fully encased, allowing users to pop it into their mouths. It allows for discreet and hands- free interaction with a phone, computer and smartwatch, among other devices, even while riding a bicycle. The wearer can use it to cancel a phone call or even to con- trol a wheelchair. During the pilot test, users kept the device in their mouths for 30 minutes and re- ported no discomfort. In his research, Nanayakkara wishes to address what he says is a mismatch between what tech- nology has to offer and innate human behaviour. Owing to this, his research is focused on devel- oping technologies that are more responsive to innate human be- haviour instead of obliging hu- mans to adjust to the requirements of the technology. “We want to design and develop systems that can understand the user, rather than us having to tell the technol- ogy what to do every time—tech- nologies that can understand us much better than technology cur- rently does,” he said. He considers such technolo- gies “assistive augmentation”: “It’s when the system understands the abilities, behaviours and emotions of the user, and when the system is unobtrusive and integrated with our body or our behaviour,” Nan- ayakkara explained. According to him, assisted augmentation should be concerned with strengthening and extending the users’ physical and sensorial abilities while al- lowing them to do what they could not do before.
Dental Tribune Asia Paciﬁc Edition | 01/2019 WORLD NEWS 07 dental bauer presents ots new desogn world at IDS 2019 By OEMUS MEDIA COLOGNE, Germany: Each year, an- nual design awards have recognised dental bauer’s outstanding creative contributions to innovative prac- tice design. This decades-old divi- son has now been given a new name: DESIGN CONCEPT. As a symbolic example of a range of themes on offer, “bluemarina” is an exclusive maritime-themed range which con- sists of an elegant treatment unit with matching furnishings. Both elements of the concept were inspired by the legendary Riva Yacht and the associated carefree lifestyle on the Mediterranean coasts of Europe in the sixties. The Medi- terranean dolce vita flair is com- bined with patient comfort and functionality, hygienic and techni- cal standards all made in Germany, as well as stylish exclusivity. The treatment unit inspires with its detail-rich, timeless ele- gance in combination with state- of-the-art modern technology. The ergonomic shape, the comfortable soft padding with its aesthetic stitch- the yacht look. A light-hearted gim- mick is an optional motorboat sound when the reclining position is ad- justed. White body, blue stripes, rose- wood and stainless steel—the yacht design of the “bluemarina” treatment unit seamlessly inte- grates with that of its furniture system. The fronts and the work- tops not only inspire with their maritime design features, but also functionally fulfil all of the hy- gienic requirements of a modern dental practice. The nautical look in form and fabric is finished with recessed LED lights in high-gloss varnished wood. The new design world from dental bauer presents a revolu- tionary product for dentistry, un- derlining the company’s passion for transforming the individual design dreams of its customers into reality. Presented well on schedule at IDS, “bluemarina” can be ordered as a limited edition from April onwards. The exclusive “bluemarina” dental line is aimed at those who appreciate sharing the experience of the aesthetics of individual design with their patients and would like to distinguish their practices. (Photograph: OEMUS MEDIA) ing and all-round upholstery pip- ing, and the premium mahogany and maple wood armrests all per- fectly match the special maritime colour livery of pure white, pearl night blue and turquoise. If the cus- tomer desires, other colour combi- nations are also possible. Chrome elements add further highlights to Researchers doscover new materoal that could make dental fillongs more durable By OEMUS MEDIA A team of researchers at the Or- egon Health and Science University (OHSU) School of Dentistry in Port- land has created a filling material that is twice as resistant to break- age than conventional fillings. The new filling uses the additive thio- urethane, which can also be found in protective coatings for cars and wood decks. The team has also developed an adhesive that proved to be three times stronger after six months in use than the adhesives that are currently used to keep fillings in place. Combined, the new adhesive and the composite are designed to make more enduring dental resto- rations. “Today’s dental restorations typically only last seven to ten years before they fail,” said Dr. Carmem Pfeifer, an associate professor in the Department of Restorative Den- tistry at the school and correspond- ing author of the studies. “They crack under the pressure of chew- ing, or have gaps form between the filling and the tooth, which allow bacteria to seep in and a new cavity to form,” Pfeifer said. “Every time this happens, the tooth under the restorations becomes weaker and weaker, and what starts as a small cavity may end up with root canal damage, a lost tooth or even life-threatening infections,” she continued. The dental adhesive uses a type of polymer, known as (meth)acryl- amide, that is much more resistant to damage in water, bacteria and enzymes in the mouth than the standard adhesives currently used in the dental industry. The compos- ite material uses thiourethane, a chemical compound that can bet- ter withstand chewing. The study describing the adhe- sive is titled “Use of (meth)acryl- amides as alternative monomers in dental adhesive systems” and was published online in Dental Ma- terials on Feb. 27, 2019, ahead of in- clusion in an issue. The study on the material is ti- tled “Toughening of dental com- posites with thiourethane-modified filler interfaces” and was published online on Feb. 19, 2019, in Scientific Reports. Dr. Carmem Pfeifer from the Oregon Health and Science University School of Dentistry has developed a doubly resistant filling material that may help reduce dental visits and prevent extensive treatment. (Photograph: OHSU/Kristyna Wentz-Graff) PORTLAND, Ore., U.S.: A recent study has found that a compound used to make car bumpers more robust and protect wood decks could make dental fillings last twice as long. The results of the investi- gation will help design fully for- mulated adhesives to be tested in clinically relevant conditions, and as a result, dental patients could reduce the number of visits to the dental office.
08 EVENT Dental Tribune Asia Paciﬁc Edition | 01/2019 Prof. Jörg Strub receoves the fifth P-I Brånemark Award By DTI The fifth annual P-I Brånemark Award for Lifetime Achievement in Den- tistry has been given to Prof. Jörg Strub of the University of Freiburg in Germany. Strub received the pres- tigious accolade in absentia, with his colleague and friend Dr Kenneth Malament accepting it on his behalf. At the award ceremony, Mala- ment reminded an assembly of Strub’s colleagues and friends that he “is an individual who has put his whole life into dentistry—there is simply no one like him. He is the best of his generation,” Malament said. Mark Ferber, founder of Chan- nel3, which presents the award, told Dental Tribune International that “Jörg Strub has perfectly repre- sented, throughout his career, the five characteristics of Prof. Bråne- mark, on which the award is based. Dr Strub is a scientist, a clinician, an educator, a humanitarian, and a sage.” Strub received his DDS, Dr. Med. Dent. and Dr. Med. Dent. Habil. de- grees from the University of Zurich in Switzerland in 1975 and 1985, re- spectively. Since 2005, he has been Associate Dean for Clinical Affairs at the University of Freiburg. Established in 2015 in honour of Swedish physician and father of modern implantology Prof. Per-In- gvar Brånemark (3 May 1929 to 20 December 2014), the eponymous annual award recognises excep- tional clinicians who have advanced dentistry for the well-being of so- ciety. The first award was given in 2015 to Dr Myron Nevins of Boston in the US. In 2016, Dr Tiziano Tes- tori of Lake Como in Italy received the second award. Dr István Urbán of Budapest in Hungary received the third award, in 2017. The fourth award was given to Dr Michael Cohen, founder of the Seattle Study Club, in 2018. This year’s award was presented in the OEMUS MEDIA and Dental Tribune International IDS media lounge on Thursday. Attendees at the Channel3 right held at the OMEUS MEDIA/Dental Tribune International booth. (Photograph: Luke Gribble, DTI) From left: Dr Kenneth Malament re- ceiving the P-l Brånemark Award for lifetime Achievement in Dentistry on behalf of Prof Joerg R Strub, with Mark Ferber (middle) founder of Channel3 and Dental Tribune Inter- national CEO Torsten Oemus. (Photograph: Luke Gribble, DTI) Dental Tribune International CEO Torsten Oemus with attendees from the Channel3 right. (Photograph: Luke Gribble, DTI) Dr Kenneth Malament (left) accepting the P-I Brånemark Award for Lifetime Achievement in Dentistry on behalf of Prof. Jörg R Strub, with Mark Ferber (middle), founder of Channel3, and Dental Tribune International CEO Torsten Oemus. (Photo: Luke Gribble, DTI) Dr Sarah Fitzharris, founder of the Fitz Fahey Academy, looks on during the award ceremony. (Photograph: Luke Gribble, DTI) Action shot from the Channel3 right held at the OMEUS MEDIA/Dental Tribune International booth. (Photo- graph: Luke Gribble, DTI) Prof Tiziano Testori (middle) from the Lake Como Institute with attendees at the Channel3 booth party. (Photo- graph: Luke Gribble, DTI) ROOT SUMMIT communoty meets at the 38th IDS on Cologne By DTI On Thursday, friends and members of the ROOTS SUMMIT community gathered at the 38th IDS in Cologne for coffee and croissants. The brunch provided an opportunity to discuss next year’s meeting, which will take place at the Cubex Centre Prague from 21 to 24 May in Prague in the Czech Republic. chairman, Dr David Jaramillo, has managed to put together another outstanding programme. We have nine of the top speakers in end- odontics, and we also have the plea- sure of having Dr Maxim Belograd give us his perspective on how to increase your endodontic success from a restorative point of view.” After the success of ROOTS SUM- MIT 2018, the anticipation for next year’s event is high. Co-chairman Stephen Jones said, “Before ROOTS SUMMIT 2018 had finished, we began planning ROOTS SUMMIT 2020. We knew we were going to have a challenge matching the qual- ity and depth of the programme we had in Berlin, but our scientific Other notable speakers at ROOTS SUMMIT 2020 include Dr Jaime Sil- berman and Prof. Matthias Zehnder. A final programme will be available on www.roots-summit.com within the next few days, and registration will open on 21 May 2019. More in- formation about the event can be found on its Facebook page (@roots- summit2020). From left: ROOTS SUMMIT Co-chairman Dr Freddy Belliard, Event organiser Sarah Schubert and ROOTS SUMMIT Co-chairman Stephen Jones (Photograph: Robert Strehler)
Dental Tribune Asia Paciﬁc Edition | 01/2019 INTERVIEW 09 Intervoew: “We definotely passed a toppong poont for 3-D pronters” By Brendan Day, DTI Powered by 3D Systems’ proprietary Figure 4 technology, the NextDent 5100 is a high-speed dental 3-D printer designed to save time for both patient and practitioner. Dental Tribune International spoke with Rik Jacobs, dental vice president and general manager at 3D Systems; Sebastiaan Cornelissen, CEO of Cordent and Core3dcentres; and Dr Michael Scherer, an American prosthodontist, about the NextDent 5100 and future trends in dentistry. Is the NextDent 5100 designed spe- cifically with the dental lab in mind, or can it be used in a dental practice as well? Rik Jacobs: Essentially, I designed this product to be used by both labs and clinicians with success. Sebastiaan Cornelissen: We found that the most important thing was to have a system that can incorpo- rate multiple machines and multi- ple materials if necessary. This flexibility was the main feature that we were looking for, and the Next- Dent 5100 delivers this. Dr Michael Scherer: For a clinician like myself, there’s been an embrace of 3-D printing in recent years. How- ever, it’s always been the lower-cost models that have been prioritised. With the multiple materials and extremely fast printing that the NextDent 5100 offers, I think that clinicians can now offer a realistic chairside solution for patients. What are the benefits of the Next- Dent 5100 for dental labs? ing and ongoing support from our outstanding resellers, are the foun- dations of the NextDent 5100. We got a lot of feedback from users of this printer, like Michael and Sebastiaan, and thankfully, our R & D team in San Diego really lis- tened to what they asked for, what the market asked for. I think this is what our company should always do: listen carefully to our custom- ers and deliver what they need and want. Are software updates included? Jacobs: Automatically. As long as the user is connected to the Inter- net, he or she will be able to have the latest updates automatically downloaded to the printer. It’s predicted that, within three to five years, more than 50 per cent of dental labs globally will have an in-house 3-D printer. What, in your opinion, is driving this growth? Jacobs: Well in 2018, we definitely passed a tipping point for 3-D print- ers here at 3D Systems. Thanks to easier registration, certification, improved ease of use, and a range of other factors, it has become much more achievable to integrate a 3-D printer into one’s daily workflow. Scherer: Clinicians are now expecting dental labs to be digital and to have printing capabilities. It’s no longer a case of whether a lab will take your files, but rather if they print themselves or still outsource it. That’s how fast 3-D printing has grown in dentistry. From left to right: Dr Michael Scherer, Rik Jacobs (dental vice president and general manager at 3D Systems) and Sebastiaan Cornelissen (CEO of Cordent and Core3dcentres) with 3D Systems’ NextDent 5100. (Photograph: Brendan Day, DTI) Cornelissen: In the dental lab, you have similar time pressure issues to a dental practice. You need to be able to produce things fast, in multiple colours and often in large quantities. To be frank, these are all easily achievable with this printer. Often, a dentist will send some scans to us so that we can quickly create a smile design for the dentist to print a mock-up of in his or her office. Though we are based in the Netherlands and have clinicians working with us from Germany, the NextDent 5100 allows for this entire procedure to be conducted in less than 2 hours. What has the feedback been since the launch of this printer? What have customers most liked about it? Jacobs: What was important for us, besides what these gentlemen have already mentioned, was that the printer have a high level of accuracy. With ten years of experi- ence in the 3-D dental printing industry, I’ve learnt that a lot of printers work fine in the beginning but lose their accuracy over time. When 3D Systems acquired my company, we decided to make sure that our printer would work with- out issue, day in and day out, for at least three years. Flexibility, speed, accuracy and, ultimately, afford- ability of the machine and the materials—these, along with train- Intervoew: “We ontend to ultomately develop a daoly use oral care product woth a natural substance” By DTI ing natural products that could potentially be used to complement fluoride in dental caries prevention. Although there has been extensive literature suggesting the use of natural products for preventing dental diseases, the vast majority of natural product research studies in dentistry are laboratory-based and have not progressed to clinical usage. I am part of the broad research group called Advanced Materials and Technologies, which is headed by Dr Laurence Walsh. Under this group we had a sub-group focusing on natural products and dental caries – which includes Drs Walsh, Leishman, Bandara and myself. I was the lead researcher of the nat- ural product study, with the group coming together three years ago at the beginning of my PhD pro- gramme. What was the basis of your research concept? We sought to identify an appro- priate natural product. Dark-coloured fruit berries are known to contain a variety of phytochemicals bene- ficial to health. The availability of commercial fruit berry extracts with standardised phytochemical con- centrations offered the possibility of testing these polyphenol-rich extracts against key cariogenic bac- terial virulence properties. We pro- gressed from a series of laboratory studies to a double-blinded ran- domised controlled trial in high caries-risk patients. We have pres- ently completed all these studies and are planning our next clinical trial in a larger cohort of patients. What do you think the most inter- esting results were? The ability of the berry extracts, especially the cranberry extract, to significantly inhibit Streptococcus mutans virulence without affecting bacterial viability was probably the most interesting result. This suggests the possibility of incorporating the cranberry extracts into a daily use oral care product, for example a mouthwash or dentifrice, to reduce cariogenic virulence without affect- ing health-associated bacterial species in dental plaque, an important advan- tage over commonly used synthetic biocides, like chlorhexidine. Do you have further research plans to develop a new oral health prod- uct? The results of our first clinical trial were encouraging. After fur- ther clinical studies, we do intend to ultimately develop a daily use oral care product with a natural substance incorporated into it to protect against dental caries. Watch this space! Members of the research team responsible for the development a new product to help fight dental caries. From left to right, Drs Shaneen Leishman, Nebu Philip and Laurence Walsh. (Photograph: Dr Patricia Wright) The fight against dental caries has produced a number of innovative ways in which patients can protect and improve their oral health. After much interest in a recently published article on a study into the potential use of berry extract to combat decay-causing bacteria, Dental Tribune International spoke with lead researcher Dr Nebu Philip, from the Universit y of Queensland in Australia, to discuss this new discovery in more detail. Dr Nebu, the study sounds very inter- esting. How did the idea for the research topic arise, and who are you working with? We were interested in develop-
10 WORLD NEWS Dental Tribune Asia Paciﬁc Edition | 01/2019 New realostoc mouth models aom to omprove dental educatoon By DTI BIRMINGHAM, UK: New research being carried out in collaboration with the University of Birmingham will allow dental students to train on dental models that possess the tactile qualities of real mouths. Among the applications will be learn- ing how to use periodontal probes to check for periodontal disease. The project is being run by Dr Michael Milward, a reader and hon- orary consultant in periodontics AD – regular e-news delivered to your inbox – individualized content according to your specialty & region – latest industry developments – event specials – exclusive interviews with key opinion leaders – product information – clinical cases – job adverts Sign up to the ﬁ nest e-read in dentistry www.dental-tribune.com The mouth models replicate hard and soft tissue to provide dental students with a realistic learning experience. (Photograph: University of Birmingham) at the university’s School of Den- tistry; Dr Paul Cooper, Professor of Oral Biology at the school; and Richard Arm, a senior research fel- low at Nottingham Trent Univer- sity in the UK. The models feature realistic gingivae and tongues to allow students to learn how to ex- amine the mouth and check for disease safely. Both the tongue and the gingivae are made from syn- thetic gels and fibres and vary in hardness to mimic living tissue, whereas the teeth and jaw bones are made from bone-simulating resin. “These models meet an unmet need in dental education and will allow us to better prepare our students for clinical work,” said Milward. “The feedback we have received from students and staff has been extremely positive and the final version has already been intro- duced into undergraduate teach- ing,” he continued. “While some models are commercially available, no models combine the replica hard and soft tissues in this way to provide a realistic learning ex- perience.” According to Milward, these devel- opments provide a huge step for- ward in dental education and ben- efit not only dental students, but also the retraining dental work- force and patients. The researchers aim to further enhance the models to allow dental students to evolve additional clinical skills. “The aim is to give students the psychological experience of how it feels to perform real dentistry, but in a safe learning environment,” said Arm. “Until now, current den- tal models haven’t provided a real- istic enough experience for students and the inclusion of a tongue will mimic the challenge which dentists face and better prepare them for their first clinic.”
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