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ePaper created 2016-11-22, 09:52:12 | version 1.38.0
46 roots 4 2016 Shifting borders for a successful “endo” The International Dental Show makes it visible Current trends in endodontics—mechanical preparation—opportunities for specialisation— the latest status in endodontics—modern diagnostics and therapy concepts—a key theme of IDS The scientific and technological progress in the field ofendodonticshasconsiderablyimprovedthechances of long-term tooth preservation and also turns this specialised field into a relevant part of prophylaxis- oriented dentistry. Because the success rates are sig- nificantlyhighertodaythantwentyyearsago.Whereby themethodicalspectrumrangesfromtheconserving therapy with manual or mechanical root canal treat- ment, disinfection and obturation, to the possibly necessary root canal revision, through to minimally invasive,microsurgicalconceptsforthetreatmentof specific endoperiodontal lesions. The International DentalShow(IDS)from21to25March2017willpres- enttheentirepaletteofendodonticinstrumentsand materials necessary for this purpose. Getting to know the root canal system: Glide path and diagnostic tools This begins with systems for the production of the gliding path as a basis of every successful endodontic treatment. To this end both hand files and chelation gels as well as machine-driven alternatives are avail- able. A trend towards the use of a single rotating sin- gle-usefileisnoticeable,becausemoderninstruments made of nickel titanium display high resistance to breakage,canreducethetreatmenttimeandarethus also advantageous from an economic point of view. In this stadium of the treatment the dentist al- readygetsaprecisepictureoftheanatomyoftheroot canal -not least thanks to a multitude of diagnostic aids. For the visual examination with the bare eye, thedentistcanuseamagnifyingglassfortheinspec- tion,wherebytodayextremelylightweighthigh-tech models enable a particularly relaxed view even in the case of very small-structured areas. If necessary, the practitioner choses a colour corrected lens system and a correction to suit his spectacles. TheendodonticX-ray—moreandmorefrequentlyin the form of a digital 3-D X-ray—delivers essential ad- ditional information on the precise course of the root canal. In the further process, X-rays frequently serve thepurposeofdeterminingtheexactlength,whereby the combination with an electro-metrical determina- tionwithanendometricdeviceprovestobehelpfulin manycases.Electricalresistancerepresentstheactual measuringsizeshere.Inthecaseofmorerecentendo- metrical devices, a reference point between the fora- menphysiologicumandtheforamenapicaleisdeter- mined. The actual measurement of the resistance is thus only dependent on the conductivity of the canal wall dentine. State-of-the-art developments work according to the principle of the impedance quotient measurement: These apex locators determine the alternating current resistance in the case of two dif- ferent frequences (multi-frequency technology). For practical use, devices that communicate the message “apical section reached!” or “Beware, danger of over- instrumentation!” using acoustic and/or optical sig- nalsarerecommended.Modernapexlocatorsworkin both dry and moist root canals and are in some cases even available in compact small formats. Less and less filing needed to achieve the goal Inordertopreparetherootcanal,sequencesofco- ordinatedfilingarerequired—howeverthisistending | meetings IDS 42016