Evaluation of sonic, ultrasonic, and laser irrigation activation systems to eliminate bacteria from the dentinal tubules of the root canal system.
J Appl Oral Sci
; 30: e20220199, 2022.
Article
em En
| MEDLINE
| ID: mdl-36417594
ABSTRACT
INTRODUCTION:
Aiming to kill bacteria in dentin tubules of infected dental pulp cavities, we evaluated the effects of sodium hypochlorite (NaOCl) solution agitated by different irrigation protocols, i.e., conventional needle irrigation (CNI), passive ultrasonic irrigation (PUI), the EDDY tip, and the neodymium-doped yttrium aluminum perovskite (NdYAP) laser. The EDDY achieved good antibacterial effects as passive ultrasonic irrigation in the coronal and middle thirds. NdYAP laser irradiation and PUI were effective in the apical third of the root canal.OBJECTIVES:
To evaluate the ability of NaOCl agitated by high-frequency sonic irrigation-EDDY, PUI, and NdYAP laser-to kill bacteria in infected root canal walls and if the associated temperature increases at the root surface during application.METHODOLOGY:
Infected root canal models were established, and roots were randomly divided into six groups negative control, positive control, CNI, PUI, sonic agitation with EDDY, and NdYAP laser groups. After irrigation, the teeth were split and stained using the LIVE/DEAD BacLight Bacterial Viability Kit. Dead bacteria depth was evaluated by a confocal laser scanning microscopy and the temperature at the root surface was assessed using a thermal imaging camera during the irrigation process.RESULTS:
In the coronal and middle thirds of the root canal, PUI and EDDY had stronger antibacterial effects than CNI (p<0.05); in the apical third, the antibacterial effects of PUI and NdYAP laser-activated irrigation were better than CNI (p<0.05). The maximum change in temperature was significantly greater during continuous NdYAP laser application compared with the other methods, but intermittent irrigation helped lessening this trend.CONCLUSIONS:
NaOCl agitated by EDDY tip and PUI exhibited a similar bacteria elimination effect in the coronal and middle root canal. NdYAP laser was effective in the apical third and intermittent irrigation reduced its thermal impact.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ultrassom
/
Cavidade Pulpar
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article