Laserski aktivirano ispiranje kanala

master's thesis

• Title (english): Laser activated root canal irrigation
• Author: Jana Joksimović
• Mentor: Ivona Bago (mentor)
• Committee member: Ivona Bago (predsjednik povjerenstva)
• Committee member: Božidar Pavelić (član povjerenstva)
• Committee member: Valentina Rajić (član povjerenstva)
• Granter: University of Zagreb; School of Dental Medicine; (Department of Endodontics and Restorative Dentistry); Zagreb
• Defense date and country: 2022-07-11, Croatia
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Dental Medicine; Endodonics and Restorative Dentistry

Abstract

Svrha ovog rada je objasniti teorijske osnove laserski aktiviranog ispiranja (LAI) korijenskih
kanala te dati sažeti kritički prikaz dosadašnjih istraživanja o uporabi lasera kao nadopuni
kemo-mehaničke obrade korijenskih kanala. Cilj endodontskog liječenja je ukloniti
mikroorganizme, pulpno tkivo i dentinski debris iz korijenskih kanala, a postupak uključuje
mehaničku instrumentaciju i kemijsku obradu sredstvima za ispiranje. Ipak, postoje određena
ograničenja endodontskog liječenja koja su posljedica anatomske kompleksnosti i prisutnosti
lateralnih kanala. Konvencionalno ispiranje iglom i špricom nedovoljno je učinkovito u
dezinfekciji lateralnih kanala te predstavlja rizik za ekstruziju irigansa u periapikalno
područje. Kako bi se izbjegli navedeni nedostaci konvencionalnog ispiranja, razvijaju se
tehnike aktivacije irigansa koje povećavaju disperziju irigansa u sustav korijenskih kanala.
Napretkom laserske tehnologije, laserska zraka također nalazi primjenu u tehnici LAI
korijenskih kanala. Primjenom pulsne tehnologije erbij lasera, laserska zraka u irigansu
izaziva fototermalni učinak i stvaranje prolaznih kavitacija koje rezultiraju nastankom tlačnih
šok-valova i smičnog naprezanja na dentinske zidove, što pospješuje uklanjanje zaostatnog
sloja i bakterijskog biofilma. Daljnjim tehnološkim napretkom lasera razvijaju se nove
tehnike, fotonima inducirano fotoakustično strujanje (engl. photon-induced photoacoustic
streaming, PIPS) i emisija fotoakustičnog strujanja pojačana udarnim valom (engl. Shock
Wave Enhanced Emission of Photoacoustic Streaming, SWEEPS). U literaturi trenutno ne
postoji dovoljno radova visoke kvalitete, na temelju kojih bi se preporučila uporaba lasera u
nadopuni kemo-mehaničke obrade.

Abstract (english)

This study aims to explain the theoretical principles of laser-activated irrigation of root canals
and give a concise critical review of previous studies about using lasers as a supplement to the
chemo-mechanical treatment of root canals. The goal of endodontic treatment is to remove
microorganisms, pulp tissue, and dentine debris from the root canals, in a procedure that
involves mechanical instrumentation and chemical treatment with irrigants. However,
endodontic treatment has certain limitations due to anatomical complexity and the presence of
lateral canals. The conventional needle and syringe irrigation technique is insufficiently
effective in disinfecting lateral canals and poses a risk for irrigation extrusion into the
periapical area. To avoid these disadvantages of conventional rinsing, irrigation activation
techniques are being developed to increase the dispersion of irrigants into the root canal
system. With the advancement of laser technology, laser beams also found application in the
technique of laser-activated irrigation (LAI) of root canals. By applying pulsed technology of
erbium laser, the laser beam in the irrigant causes a photothermal effect and the creation of
transient cavitations, which result in the formation of pressure shock waves and shear stress
on the dentinal walls, which facilitates the removal of smear layer and bacterial biofilm. With
further technological progress in laser technology, new techniques are being developed,
including photon-induced photoacoustic streaming (PIPS) and shock wave enhanced emission
of photoacoustic streaming (SWEEPS). Currently, there are not enough high-quality studies
in the literature to recommend laser as a supplement to chemo-mechanical treatment.

• Keywords: endodoncija; laseri; sredstva za ispiranje korijenskog kanala
• Keywords (english): endodontics; lasers; root canal irrigants
• Language: croatian
• URN:NBN: urn:nbn:hr:127:486572
• Study programme: Title: dental medicine; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: doktor/doktorica dentalne medicine (doktor/doktorica dentalne medicine)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-10-12 11:34:21