
,, , In this present study, only 74 practitioners responded to the survey, for a response rate of 86.04%. Some have focused on the properties of solutions and others on the methods of use and possible associations.

The type and quality of root canal irrigation solutions have been the subject of several studies. Furthermore, the concentration was higher in solutions stored in an opaque container (0.8%) than in transparent containers (0.5%), but again this difference was not statistically significant ( P = 0.37). Furthermore, depending on the type of activity the practitioners conducted, there was no statistically significant difference in the chlorine concentration of the hypochlorite solutions ( P = 0.39). Regarding the seniority of the practitioners, there was no significant difference in the chlorine concentration used ( P = 0.34). On the other hand, a significant difference was noted between the solutions prepared by the practitioners 1.16% ± 0.74% and those prepared by the assistants 0.77% ± 0.58% ( P = 0.021). Furthermore, dentists who tended to use this type of solution utilized more the rubber dam during the root canal treatment, but the difference was not significant ( P = 0.08). The concentration was also higher (1.39%) in the ready-to-use solutions compared to those prepared in the office (0.87%), and this difference was statistically significant ( P = 0.01). Male dentists used a higher concentration of chlorine 1.07% ± 0.71% compared to female 0.83% ± 0.6% but the difference was not statistically significant ( P = 0,14). Jamovi version 1.8.1/ANOVA and the t-test were used to perform the statistical analysis ( P 2.6%. After this interview, a 30 mL sample of that solution was sent to a laboratory to determine the amount of chlorine by iodometric titration.

Among the questions, participants were asked about the number of treatments performed per week, the type of irrigation solution used, and the storage of the irrigation solution. A self-administered questionnaire was used. Materials and Methods: A survey was carried out among 74 practitioners registered with the Moroccan Order of Dentists, of whom 36 (48.6%) were men and 38 (51.4%) were women. Introduction: The purpose of this survey was to assess the concentration of chlorine in sodium hypochlorite solutions (NaOCl) used as root canal irrigation solutions by the dentists in Marrakech, Morocco.
