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[Bristle end rounding and anchoring in children's toothbrushes]
D Althaus1, C Koçkapan, W E Wetzel
1Abteilung Kinderzahnheilkunde und Funktionsbereich Endodontie, Zentrum für Zahn-, Mund- und Kieferheilkunde, Giessen, BRD.
Schweizer Monatsschrift Fur Zahnmedizin = Revue Mensuelle Suisse D'Odonto-Stomatologie = Rivista Mensile Svizzera Di Odontologia E Stomatologia
|January 1, 1990
Summary
This study examined children's toothbrushes, finding significant variations in bristle end rounding quality. While some new toothbrushes showed deficiencies, others improved, highlighting the need for consistent manufacturing standards in oral hygiene products.
Area of Science:
- Materials Science
- Pediatric Dentistry
- Microscopy
Background:
- Toothbrush bristle end rounding is crucial for effective and safe oral hygiene.
- Previous studies indicated variability in toothbrush manufacturing quality.
- Assessing children's toothbrushes is important due to their specific needs and potential for gum sensitivity.
Purpose of the Study:
- To evaluate the quality and quantity of bristle end rounding in children's toothbrushes using scanning electron microscopy.
- To compare the preparation of current children's toothbrushes with previous product generations.
- To identify potential hygienic advantages of specific toothbrush construction methods.
Main Methods:
- Scanning electron microscopy (SEM) was employed to examine eight different children's toothbrushes.
- Quantitative analysis of the percentage of rounded bristle ends was performed for each product.
- Visual inspection focused on the quality and uniformity of bristle tip preparation.
Main Results:
- Significant variations in bristle end rounding were observed, ranging from 14.3% to 90.2% acceptable rounding.
- Four of the examined toothbrushes, new to the study, exhibited partial deficiencies in bristle preparation.
- Improvements in bristle preparation were noted in other toothbrushes compared to earlier versions.
- Welding of bristle bundles at their base was identified as a construction method offering hygienic benefits.
Conclusions:
- There is considerable inconsistency in the manufacturing quality of children's toothbrushes regarding bristle end rounding.
- Improvements in toothbrush design and manufacturing are evident in some products over time.
- The base welding technique for bristle bundles presents a hygienic advantage in toothbrush head construction.