Abstract
Background: In recent years, diode laser has been utilized for canal disinfection, however more clinical studies are needed to examine its effect.
Aims and Objectives: This in vivo study was done to assess diode laser effectiveness in the disinfection of necrotic deciduous teeth root canal system.
Methodology: A Total of 40 lower primary molars in (4-6 years old) patients need root canal therapy were selected, randomly divided into two groups (A, B). In both groups samples from root canal were collected to full working length with the help of sterile paper point for subsequent microbiological examination, then irrigation was done with 5.25% sodium hypochlorite (NaOCl) in group A, while in group B NaOCl irrigation was followed by laser irradiation with zolar diode LASER (810 nm), at output power 1watt. Following canal disinfection in both groups, samples were collected and cases were followed up radiographically and clinically.
Results: using 1watt 810nm Diode LASER in combination with 5.25% NaOCl did not show statistical significant difference in E. Faecalis count. Also both groups showed successful clinical and radiographic results after 6months follow up.
Conclusions: 5.25% of “NaOCl" effectively reduces E. faecalis count, and no different results was obtained when combined with 810nm, 1watt diode laser.
Recommendations: More in vivo studies using Combination therapy consisting of irrigation using NaOCl and laser irradiation with different NaOCl concentration and different laser power, with long term clinical and radiographic evaluation.