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| events 38 laser 4 2016 Prof. Dr Andreas Braun (Marburg, Germany) has also been exploring new territory. He reported on the clinical application of the latest diode-laser wave- length. While until recently only diode lasers of a wavelength of 810–980 nm were available, a semi- conductor laser of 445 nm has now been introduced to the market. This new diode laser wavelength from the blue spectre can promote the coupling of energy topigmentedtissuecells,thusensuringagoodsurgi- calcuttingatlowerpenetrationdepthsandareduced risk of damage to underlying tissues. Dr René Franzen (Aachen, Germany) and col- leagues introduced their research results on the 445 nm diode laser when applied endodontologi- cally, attesting strong bactericidal properties to the blue wavelength in their in-vitro study. Dr Ralf Borchers and Prof. Marcia Marques also dedicated their speeches to diode lasers, if under different circumstances. While Dr Borchers com- pared the effect of diode laser light when applied in cw and superpulse mode on soft tissues and noted significant advantages in the superpulsed diode la- sers, Prof. Marques illustrated a special diode laser treatment: low-level laser therapy (low energy), which is mainly used to treat wound-healing dis orders and pain. The working group led by Prof. Dr Heinrich Wehr- bein (Mainz, Germany) took up the cudgels for LLLT applications by noting a significantly reduced reten- tiontimeandrelapserateafterpalatalexpansionand LLLT application. Parts of the first congress day as well as the com- pleteseconddaywerededicatedtoindicationsofcur- rentlaserdentistry. Letmesaythatmuch:itissimply incredible what has happened in this field during the last quarter of a century. The variety of laser-aided therapies is remarkable. In particular since those new formsoftherapyarenotjustlaser-aidedapplications in hard-tissue (tooth and bone) such as laser-aided endodonticsandimplantology(periimplantitistreat- ment). The assiduous Aachen working group uses Er,Cr:YSGG laser to remove implants that cannot be saved. This approach is, according to the group, superior to conventional methods (Trepan) and guarantees best possible tissue protection. Although most of the scientific contributions at the 25th annual congress of the DGL concerned conventional ap- proaches, there was a clear orientation towards new horizons: laser systems are being growingly em- ployed in areas such as orthodontics (Dr Peter Klee- mann, Luxembourg), oral and maxillo-facial surgery (Prof. Siegfried Jänicke, Osnabrück) and diagnostics (Dr Thorsten Kleinert, Berlin). Dr Kleemann, a colleague from Luxembourg, pre- sented laser-aided procedures in orthodontics with variouswavelengths,thusshowingarealcornucopia of laser applications with the suitable laser equip- ment. Laser procedures in various specialized areas Ifacertainprocedureortechnique,forexamplethe dentallaser,becomesanaccepteddentaldiscipline,it is inevitable that combination therapies are formed whichwillspreadtootherspecializedareas.Thisphe- nomenoncanbeobservedwithlaserdentistry.Hence, Prof. Frank Liebaug talked about the combination of laser and hyaluronic acid (he sees in this promising duet the chance to revolutionize periodontitis ther- apy).Inaddition,Dr.D.Moghtaderpresentedhisfind- ings on laser-aided snoring therapy and went into questions of its legal legitimacy. Looking back on the days spent in Berlin, one thing is certain: 25 years of DGL and a stimulating and multi-layeredcongressmadetravellingtothecapital utterly worth it!_ contact Dr. Georg Bach Fachzahnarzt für Oralchirurgie Rathausgasse36 79098 Freiburg im Breisgau Author details Fig. 5: And the winner is … Eva Speck (DGL) and Sebastian Kiehne, Sales Manager Instruments at congress sponsor Dentsply Sirona, were happy to announce the winner of the SIROLaser Blue prize draw. Fig. 6: The scientific congress was completed by an extensive industry exhibition. Fig. 5 Fig. 6 42016