Faculty, Staff and Student Publications

    Language

    English

    Publication Date

    2-28-2025

    Journal

    Dentistry Journal

    DOI

    10.3390/dj13030110

    PMID

    40136738

    PMCID

    PMC11941429

    PubMedCentral® Posted Date

    2-28-2025

    PubMedCentral® Full Text Version

    Post-print

    Abstract

    Objective: To investigate the tissue dissolution efficacy of different concentrations of sodium hypochlorite (NaOCl) using the GentleWave® technology (GW) and compare it with that of passive ultrasonic irrigation. This study will provide a novel in vitro model used to evaluate the tissue dissolution efficacy of different concentrations of NaOCl using the GentleWave® procedure.

    Materials and Methods: Palatal bovine tissue was standardized by weight at 70-75 mg (average of 74.4 mg). The samples were divided into three groups of n = 10, Group 1: GW + 0.5% NaOCl, Group 2: GW + 3% NaOCl, and Group 3: ultrasonic group (US) + 6% NaOCl, and a control group of n = 2 with GW + H2O. A specialized CleanFlow instrument was manufactured for the GW groups. For the US group, an apparatus was developed to allow the tissue to be in close contact with a freely operating ultrasonic tip. Each group was operated with its specific irrigants and dissolution times were obtained unless the samples were not visually dissolved within 5 min, and the dissolution rates were calculated. Dissolution times and rates were analyzed using univariate analysis of variance followed by a t-test.

    Results: The GW groups with 0.5% and 3% NaOCl dissolved entire tissue samples within 5 min and had average dissolution times of 227.5 s (Group 1) and 81.5 s (Group 2). GW with water had a higher tissue dissolution rate than ultrasonics with 6% NaOCl.

    Conclusions: The GentleWave® using a lower concentration of NaOCl showed a similar clinical efficacy of dissolving tissues but displayed a significantly faster rate when compared with passive ultrasonic agitation.

    Keywords

    GentleWave®, irrigation, tissue dissolution, NaOCl, endodontics

    Published Open-Access

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