Please activate JavaScript!
Please install Adobe Flash Player, click here for download
ePaper created 2015-12-29, 14:54:09 | version 1.38.0
35353_2015 laser laser_opis przypadku research I In recent years, the development of new technolo- gies made it possible to prevent complications and to conduct treatments with minimal intervention. Laser treatmentwithitsconsiderablevarietyofbiologicalac- tionsandhightherapeuticeffectivenessisusedwidely both in medicine and dentistry. Erbium lasers could be used in large array of both hard and soft tissue proce- duresperformedinpaediatricdentistry.3 Manyofthese proceduresmaybetreatmentsthatrequireaspecialist. However, when Er:YAG lasers are being used their effi- cacy and special characteristics allow general practi- tionerstoperformandcompleteawiderangeofthese procedures.TheadvantagesofEr:YAGlaserareassoci- atedwithaprocessofablation,decontamination,min- imalinvasionandanalgesia,thusprovidingclinicalso- lutionstowhatoncewasattributesolelytoexperts.The purpose of this study is to describe the scientific ap- proachestopreventionbyusingEr:YAGlasers. _Er:YAG laser characteristics and advantages Ablation Er:YAG laser has a wavelength of 2.94 µm, which matches exactly the absorption peak of water and whichisalsoabsorbedbyhydroxyapatite.Erbiumlaser radiation is very efficient in removing both dentin and enamel,limitingthelasereffectonthesetissuestoasu- perficial layer of a few micrometres. The overheated water abruptly vaporises and the so released vapour carriesawaysurroundingbrokentissuefragmentsina thermo-mechanicalablationprocess.4, 5 In general, there is a linear relationship between crater depth or removed volume and applied energy density.15 Watermistisneededtoavoidthermalsideef- fectsandforpaincontrol.6 Thewaytoremovehardtis- sues with Er:YAG without overheating prevents the pulp. Er:YAG laser ablation works in a minimally-inva- sive way, removing only the damaged tissues. It pre- ventsdestructionofsoundstructuresandgivesoppor- tunityforafasthealingprocess. Decontamination Thebactericidaleffectoflaserlightwasadvancedto be one of its beneficial effects. The wavelengths well- absorbed in water have a good bactericidal effect even at low-energy density output levels, starting at 0.3 J/cm2 , without excessive temperature elevation.7 Duetoitsbactericidaleffectcombinedwiththereduced pain sensation during its application, the Er:YAG laser wasaverypromisingtoolforcavitypreparationinPae- diatricDentistryandinDentistryingeneral.Antimicro- bial resistance or drug resistance is a problem spread and discussed worldwide. It is a major concern of the WHO.TheabilityofEr:YAGlasertoestablishdecontam- inationisasolutionforeffectivetreatmentandpreven- tionoffuturecomplications. Analgeticeffectandpainperception AsEr:YAGlaserscanbeusedtopreparecavitieswith- outthermaldamageandthesystemsavailabilityonthe marketoffersahighablationefficiency,itwasofinter- esttoinvestigatethepatients’subjectiveperceptionof this treatment method: Cavity preparation with the helpofEr:YAGlaserwasfoundtobemorecomfortable in the patients perception than mechanical treatment inatleast80percentofthecases.10, 11 Oneoftheparameterspartlyexplainingtheabsence of pain perception is the difference in tooth vibration Figs. 2a–c_Maxillary frenectomy with LiteTouch, Er:YAG laser. I 07laser2_2015 Fig. 2a Fig. 2b Fig. 2c