We are using cookies to implement functions like login, shopping cart or language selection for this website. Furthermore we use Google Analytics to create anonymized statistical reports of the usage which creates Cookies too. You will find more information in our privacy policy.
OK, I agree I do not want Google Analytics-Cookies
Quintessence International



Forgotten password?


Quintessence Int 46 (2015), No. 10     24. Sep. 2015
Quintessence Int 46 (2015), No. 10  (24.09.2015)

Page 853-860, doi:10.3290/j.qi.a33687, PubMed:25699297

Apical debris removal of CanalBrushes with different tip modifications
Roggendorf, Matthias Johannes / Kraus, Florian / Lohbauer, Ulrich / Frankenberger, Roland / Petschelt, Anselm / Ebert, Johannes
Objective: In this study the apical debris score regarding the rotary use of the CanalBrush (Coltène-Whaledent) with three different tip variations was compared to that of sole needle irrigation.
Method and Materials: Sixty straight roots of human teeth with one canal were instrumented to size 45/.04. Roots were split into halves, reassembled, and embedded in model resin to form separable tooth models. Artificially manufactured dentin debris was packed into the apical 2 mm of the roots to form a relatively consistent debris challenge to be assessed. Then, the debris of each root half was evaluated apically using a modified Hülsmann-score under a light microscope. After remounting the models, root canals were irrigated with NaOCl 3% (2 mL): group 1 with sole needle irrigation, in groups 2 to 4 additionally agitated with different versions of the CanalBrush for 30 s at 600 rpm; group 2, one straight bristle ("old"); group 3, two additional diagonal bristles ("new"); group 4, central straight bristle of the new version removed ("experimental"). Following this, all root halves were reevaluated.
Results: Irrigation reduced debris scores in all groups (Wilcoxon tests, P < .001). Mean debris scores were reduced from a pre-irrigation score of about 4 for all groups to a score of around 2 to 3 in groups 1 and 2, and to scores around 1 in groups 3 and 4. Samples of groups 3 and 4 were significantly cleaner than of groups 1 and 2 (Mann-Whitney tests, P < .05).
Conclusion: CanalBrushes with diagonal bristles achieved an improved apical cleaning ability.

Keywords: apical cleanliness, artificial dentin debris, CanalBrush, Hülsmann-score, rotary agitation, separable tooth model