roots 01/2011

The specialist magazine roots presents the most significant international developments and experiences within the endodontic profession in an easy-to-read format to practitioners around the world. This high gloss, English language magazine is published four times a year and distributed at all major international congresses and exhibitions. roots is sent to a database of 4.000 dentists worldwide (mainly USA, Middle East & Africa, Asia Pacific, and Europe) and gets a wide bonus distribution at the following shows in 2011: IDS, SINO, FDI Mexico City and GNYDM. The content of the magazine is a combination of specialty articles, clinical studies, case reports, industry reports, reviews (meetings, products, etc.), news, and lifestyle articles. Specialists as well as general dentists are informed about new concepts in root canal treatment and the latest advances in techniques and instrumentation to help them keep pace with the rapid changes in this field.

Themen der aktuellen Ausgabe 01/2011

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Dr Yoshio Yahata, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
The objectives of root-canal preparation are to remove all pulp tissue, bacteria and their by-products and to produce sufficient canal space for disinfection and 3-D obturation. Many techniques have been introduced for proper preparation, one of which is the balanced force technique. This technique uses hand files with alternating clockwise and counter-clockwise motion in an attempt to minimise canal transportation and decrease the amount of stress placed on a file during use...
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Laser–tissue interactionEffects of laser light on tissueParameters that influence the emission of laser energyEffects of laser light on bacteria and dentinal walls
Laser in endodontics (Part I)
Root-canal anatomy of the permanent mandibular first molar - Clinical implications and recommendations
Dr Carlos Heilborn, Paraguay; Dr Óliver Valencia de Pablo & Dr Roberto Estevez, Spain & Dr Nestor Cohenca, USA
The world of endodontics has incorporated new technologies, instruments and materials in the past decade, such as operating microscopes, digital radiography, CBCT, NiTi rotary shaping files, sonic and ultrasonic instruments, and new irrigation delivery systems. However, despite all these improvements, the overall outcome, especially of non-surgical endo-dontics, has not increased significantly...
Revascularisation of the necrotic open apex
Dr Antonis Chaniotis, Greece
Two years ago, I was struggling to learn how to perform a good apical MTA plug. I used all the existing MTA carriers and absorbable barriers that I could find on the Greek dental market. It took me a while, but I finally ended up performing some proper apical MTA plugs and with practice, I am now able to perform apical MTA plugs even without using absorbable barriers ...
When nature laughs at endodontists: Two case reports
Dr Bojidar Kafelov, Bulgaria
Every endodontist knows that each tooth is different and has to be treated with care, paying attention to detail. There are various studies on root-canal anatomy, the configuration of canal orifices and the canals themselves.1 Several scientific articles discuss the presence of additional canals in maxillary first premolars and mandibular first molars...
Diagnosis of vertical root fractures using CBCT and an alternative treatment modality
Dr Senem Yigit Özer, Turkey
Longitudinal root fractures are confusing to both the clinician and the patient, and it is often more a case of prediction rather than diagnosis. In order to provide a global terminology and to prevent bias, five types of root fractures with different treatment modalities have been classified, from least to most severe: craze lines, cuspal fractures, cracked teeth, split teeth and vertical root fractures (VRFs).1...
Bypassing a fractured instrument
Dr Rafaël Michiels, Belgium
In a previous case report published in roots 3/10, I demonstrated the possibility of removing a fractured instrument from the root canal.1 In some cases, however, removal of a fractured instrument is impossible or undesirable. Favourable factors for the removal of a fractured instrument are straight canals, incisors and canines; localisation before the curvature; length of fragment of more than 5mm; local-isation in the coronal or mesial third of the root canal; reamer or lentulo spirals; and hand NiTi K-files.2,3 If the case does not fulfil one or more of these criteria, removal of the fractured instrument might be impossible. Teeth with small roots may also be excluded for instrument removal, since excess removal of dentine will compromise the long-term prognosis of the tooth. In these cases, alternatives to instrument removal will have to be sought. Alternatives are leaving the instrument in place, surgical removal, extraction or bypassing the instrument. In the following case report, I will demonstrate the manner in which a fractured instrument can be bypassed...
The WaveOne single-file reciprocating system
Dr Julian Webber, UK; Drs Pierre Machtou & Wilhelm Pertot, France; Drs Sergio Kuttler, Clifford Ruddle & John West, USA
The new WaveOne NiTi file system from DENTSPLY Maillefer is a SINGLE-use, SINGLE-file system to shape the root canal completely from start to finish. Shaping the root canal to a continuously tapering funnel shape not only fulfils the biological requirements for adequate irrigation to rid the root-canal system of all bacteria, bacterial by-products and pulp tissue,1 but also provides the perfect shape for 3-D obturation with gutta-percha...
R-phase advantages in shaping curves
Dr Philippe Sleiman, Lebanon
Every dentist and endodontist dreams that all root canals could be straight and large. Unfortunately, in reality they are often everything but. On a daily basis, we are faced with new challenges in curved and narrow root canals. While NiTi rotary files have changed our world significantly, our first experiences were not so encouraging...
Interview: “Our goal is to offer solutions and products with a definite benefit for the practitioner”
An interview with Dr Martin Rickert, Executive Chairman Sanavis Group
The dental supplier SycoTec, headquartered in Leutkirch in Germany, acquired MICRO-MEGA, a French company with a long-standing tradition of excellence, in autumn of 2009. In February 2010, the Canadian company SciCan joined the duo. The merger of SycoTec, MICRO-MEGA and SciCan formed the Sanavis Group, which is now one of the ten largest suppliers of dental equipment worldwide. Executive Chairman Dr Martin Rickert spoke with roots about these new developments.
Filling root-canal systems - The Calamus 3D Obturation Technique
Dr Clifford J. Ruddle, USA
Virtually all dentists are intrigued by endo-dontic post-treatment radiographs exhibiting filled accessory canals. Filling root-canal systems represents the culmination and successful fulfilment of a series of procedural steps that comprise start-to-finish endo-dontics (Fig. 1). Although the excitement asso-ciated with the so-called thrill-of-the-fill is understandable, scientific evidence should support this enthusiasm. Moving heat-softened obturation materials into all aspects of the anatomy is dependent on eliminating pulpal tissue, the smear layer and related debris, and bacteria and their by-products, when present. In order to maximise obturation potential, clinicians would be wise to direct treatment efforts toward shaping canals and cleaning root-canal systems.1
The EndoWave hybrid concept: Effective and reliable root-canal preparation
In collaboration with international endo-dontic experts, Morita has developed a treatment concept in which only three NiTi files are required for root-canal preparation. With the EndoWave hybrid concept, Morita provides an innovative solution to both newcomers and experts, enabling them to prepare canals quickly, effectively and reliably.
International Events
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About the publisher: Imprint
Copyright Regulations _roots international magazine of endodontology is published by Oemus Media AG and will appear in 2011 with one issue every quarter. The magazine and all articles and illustrations therein are protected by copyright. Any utilisation w
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