The use of lasers in disinfection and cleaning of root canals: a review/Primjena lasera u dezinfekciji i ciscenju korijenskih kanala zuba: pregledni rad

The outcome of root canal treatment is based on efficient disinfection of the root canal system and prevention of reinfection. Current chemomechanical cleaning methods do not always achieve these goals, and insufficient root canal disinfection is the main reason for endodontic failure. Due to high e...

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Bibliographic Details
Published inActa stomatologica croatica Vol. 48; no. 1; p. 6
Main Authors Juric, Ivona Bago, Anic, Ivica
Format Journal Article
LanguageEnglish
Published Sveuciliste U Zagrebu 01.03.2014
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Summary:The outcome of root canal treatment is based on efficient disinfection of the root canal system and prevention of reinfection. Current chemomechanical cleaning methods do not always achieve these goals, and insufficient root canal disinfection is the main reason for endodontic failure. Due to high energy content and specific characteristics of laser light, laser treatment has been proposed for cleaning and disinfecting the root canal system. This paper reviews the literature covering the effect of Er:YAG, Er, Cr:YSGG, Nd:YAG and diode laser on the root canal wall in the removal of smear layer and against intracanal bacteria. Recently, the use of laser energy to induce cavitation and acoustic streaming of intracanal irrigants has been investigated. Based on recent literature, it can be concluded that lasers have bactericidal effects. However, they still cannot replace sodium hypochlorite and should be considered as an adjunct to the current chemical root canal disinfection protocols. Certain lasers can help in removing the smear layer and debris and can modify the morphology of the root canal wall. Unfortunately, there have not been enough randomized clinical studies evaluating endodontic treatment outcome following the use of laser. Key words Disinfection; Root Canal Preparation; Laser Therapy, Low-Level; Smear Layer Uspjeh endodontskog lijecenja zuba ovisi o ucinkovitoj dezinfekciji endodontskog prostora i prevenciji reinfekcije. Danasnjim postupcima kemijsko-mehanicke obrade korijenskog kanala ne moze se uvijek postici zadovoljavajuca dezinfekcija i zato cijeljenje periapikalnog procesa moze biti otezano. Zbog velike energije lasera i specificne interakcije s bioloskim tkivima posljednja se dva desetljeca istrazuje njihova primjena u dezinfekciji i ciscenju korijenskog kanala zuba. Predstavljeni su rezultati dosadasnjih istrazivanja o djelovanju Er:YAG-a, Er, Cr:YSGG-a, Nd:YAG-a i diod-nog lasera na dentin korijenskog kanala te uklanjanje zaostalog sloja i bakterija. Objasnjena je i moguca uporaba laserske energije u aktivaciji tekucina u korijenskom kanalu i stvaranju specificnih kavitacija i zvucnih strujanja. Na temelju rezultata dobivenih u dosadasnjim istrazivanjima zakljuceno je da laseri u korijenskom kanalu djeluju baktericidno. Buduci da jos ne mogu potpuno zamijeniti natrijev hipoklorit, preporucuju se kao dodatna dezinfekcija na kraju kemijsko-mehanicke obrade korijenskog kanala. Osim toga odredeni laseri mogu iz korijenskih kanala ukloniti zaostali sloj i debris. Kljucne rijeci dezinfekcija, korijenski kanal, preparacija; laserska terapija, niske snage; zaostatni sloj
ISSN:0001-7019
1846-0410