J Korean Acad Prosthodont.  2021 Jul;59(3):291-298. 10.4047/jkap.2021.59.3.291.

Comparison of the effect of removing artificial dental plaque depending on various interdental cleaning products on the interdental surface of zirconia crowns

Affiliations
  • 1Department of Prosthodontics, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
  • 2The Graduate School of Clinical Dentistry, Ewha Womans University, Seoul, Republic of Korea

Abstract

Purpose
The purpose of this study is to compare five interdental cleansing products' effectiveness on removing artificial dental plaque on the interdental space of zirconia crowns.
Materials and Methods
A model with abutments on the right mandibular second premolar and first molar were prepared. 10 zirconia crowns for each abutment were fabricated. After applying artificial dental plaque between the zirconia crowns, a single clinician attempted to remove the plaque with five products: interdental toothbrush, end-tuft toothbrush, dental floss, Easypick, Water pik. They were conducted 10 times per group. The aspect and area of removed surfaces were analyzed using images taken with a digital camera. One factor analysis of variance was performed as a statistical analysis, and a post-hoc test was performed using the Scheffé method (P < .05).
Results
There were differences in the area and the pattern according to the characteristics of the products. The largest area, including the marginal portion, was removed in the dental floss group. Interdental toothbrush group was the most effective in removing the dental plaque at the marginal portion. Easypick was less effective than the interdental toothbrush. The end-tuft toothbrush showed better results than other products in cleansing mesiobuccal and distobuccal area, but could not cleanse the area directly below the contact point. In Water pik group, artificial dental plaque was scarcely removed. The removal rate of artificial dental plaque was in the order of floss (69.47%), end-tuft toothbrush (49.36%), interdental toothbrush (44.20%), Easy pick (13.04%), and Water pik (0.59%).
Conclusion
Dental floss showed the highest removal rate in the interdental space restored with zirconia crowns, while interdental toothbrush was the most effective in removing the dental plaque at the marginal portion.

Keyword

Crowns; Dental devices for home care; Dental plaque; Zirconium oxide
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