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VOLUME 24 , ISSUE 10 ( October, 2023 ) > List of Articles


In Vitro Assessment of Different Toothbrush Designs on Enamel Surface Abrasion: A Profilometric Study

Lucy Bhola, KK Ridhun Unnikrishnan, Sangamesh Ningappa Chinnannavar, Sahana Maben, Nirupama Sahoo, Leelamma Kuruvilla, Muhamood Moothedath, Debasish Mishra

Keywords : Enamel surface abrasion, Profilometer, Toothbrushing, Toothbrush abrasion

Citation Information : Bhola L, Unnikrishnan KR, Chinnannavar SN, Maben S, Sahoo N, Kuruvilla L, Moothedath M, Mishra D. In Vitro Assessment of Different Toothbrush Designs on Enamel Surface Abrasion: A Profilometric Study. J Contemp Dent Pract 2023; 24 (10):757-760.

DOI: 10.5005/jp-journals-10024-3542

License: CC BY-NC 4.0

Published Online: 05-12-2023

Copyright Statement:  Copyright © 2023; The Author(s).


Aim: The purpose of this study was to evaluate the impact of three different toothbrush designs on enamel surface abrasion. Materials and methods: Sixty intact freshly extracted maxillary central incisors were considered for the study. All of the extracted teeth's surfaces were severely trimmed, leaving only the labial surface intact. In the trial, a conventional teeth-whitening dentifrice slurry was utilized. A brushing model was created to deliver uniform force in unidirectional motion. Dontrix Gauge was used to control the tension of the spring. The force was kept constant at 180 ± 20 g. The mounted enamel samples were separated into three groups (20 samples each) at random: group A: toothbrushes have a flat trim bristle design, group B: toothbrushes have a zigzag pattern, and group C: toothbrushes have a bi-level bristle design. For 2 weeks, each sample was brushed twice daily for 2 minutes. A profilometer was used to measure the average surface roughness. Results: After toothbrushing, the maximum mean surface roughness score was found in zigzag pattern group (2.10 ± 0.23), followed by bi-level bristle design group (2.06 ± 0.12) and the least was in the flat trim bristle design group (1.96 ± 0.09). There was a significant difference between the different toothbrush bristle pattern groups (p < 0.001). Conclusion: On conclusion, the results of this study showed that, in comparison to toothbrushes with zigzag patterns and bi-level bristle designs, flat trim toothbrush bristle designs cause the least amount of surface abrasion and are relatively safe to use. Clinical significance: Toothbrushing with toothpaste contributes significantly to dental abrasion. A variety of parameters, including toothpaste abrasivity and concentration, brushing frequency, brushing length, brushing force, and toothbrush bristle stiffness, have the potential to influence the abrasion process of dental hard tissue.

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