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J Orthod Sci. 2019 Feb 20;8:5. doi: 10.4103/jos.JOS_93_18. eCollection 2019.

45S5 Bioglass paste is capable of protecting the enamel surrounding orthodontic brackets against erosive challenge.

Author information

1
Department of Orthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
2
Department of Orthodontics Alexandria University, Alexandria, Egypt.
3
Department of Operative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
4
Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Egypt.
5
Department of Dental Health, Jeddah Medical Center, Ministry of Defense, Jeddah, Saudi Arabia.
6
Department of Dental Health, Jeddah Speciality Dental Center, Ministry of Health, Jeddah, Saudi Arabia.
7
Faculty of Dentistry, Batterjee Medical Collage, Jeddah, Saudi Arabia.
8
Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.

Abstract

OBJECTIVES:

This study aimed at evaluating the effect of using a 45S5 bioglass paste and a topical fluoride as protective agents against acidic erosion (resembling acidic beverage softdrinks intake) for enamel surrounding orthodontic brackets.

MATERIALS AND METHODS:

Sample of 21 freshly extracted sound incisor and premolar teeth was randomly divided into three equal groups: a bioglass group (Bioglass) (NovaMin, 5-mm average particle, NovaMin Technology), a Fluoride group (Fluoride) (Gelato APF Gel, Keystone Industries), and a control group (Control). Orthodontic brackets were bonded to the utilized teeth usingMIP (Moisture Insensitive Primer) and Transbond PLUS color change adhesive. All specimens were challenged by 1% citric acid for 18 min. The top enamel surfaces next to the orthodontic brackets were examined by SEM-EDS. Wilcoxon Signed-Rank test was used to compare the area covered by the 45S5 bioglass paste before/after erosion P < 0.05.

RESULTS:

45S5 bioglass paste application resulted in the formation of an interaction layer that significantly resisted erosion challenge P < 0.05. The fluoride and control specimens showed signs of erosion of the enamel next to the orthodontic brackets (P < 0.05).

CONCLUSION:

45S5 bioglass paste can efficiently protect the enamel surfaces next to orthodontic brackets for acidic erosion challenges.

KEYWORDS:

45S5 Bioglass; erosion; orthodontic brackets

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