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ePaper created 2017-01-04, 09:21:41 | version 1.38.0
| research 06 laser 4 2016 Blue light laser-assisted crown lengthening in restorative dentistry Authors: Dr Philipp Skora, Dr Dominik Kraus, PD Dr Jörg Meister & Prof. Dr Matthias Frentzen, Germany Abstract Basic investigations of the laser-tissue interaction of a new type of laser device with a wavelength of 445 nm—thebluelightspectrum—promiseconsider- able advantages in comparison with infrared laser systems due to the known optical parameters of oral soft tissue. The procedure for a comprehensive la- ser-based gingivectomy before restorative treat- ment using this new type of laser is presented in the following case report. Due to the outstanding hae- mostasiswiththebluelightlaser,bothgingivectomy and adhesive filling treatment were possible in only one session. The follow-up examination showed the rapid healing of the wound with no complications and with no post-operative gingival recession. The treatment led to a very good aesthetic result at a moderate effort. Introduction Blue light-emitting diode lasers present an innova- tive alternative to the already established diode laser systems with wavelengths within the infrared spec- trum. Due to the strong absorption of blue laser light in oral soft tissue1 , the cutting capacity is improved whencomparablelaserparametersareused.Bluelight lasershaveverypowerfulcoagulationeffectsthaten- ableblood-freework.2 Inaddition,thehighantimicro- bialeffectofbluelighthasbeendemonstratedinmany fundamental studies.3, 4 Due to these specific charac- teristics, blue light lasers are extremely suitable for correctiveperiodontalsurgeryintermsofgingivecto- mies. In contrast to electrosurgery, laser-assisted plastic-aesthetic periodontal surgical procedures do not cause problems of electro-magnetic interactions that could in turn present a contraindication in the Fig. 1b Fig. 1e Fig. 1a Fig. 1d Fig. 1c Figs. 1a–e: X-rays of the upper jaw.—Subgingival carious lesions at 11 and 21. 42016