J 2023

Comparison of microleakage under orthodontic brackets bonded with five different adhesive systems: in vitro study

MASARYKOVÁ, Nela, Emil TKADLEC, Zdeněk CHLUP, Jan VRBSKÝ, Alena BRYŠOVÁ et. al.

Basic information

Original name

Comparison of microleakage under orthodontic brackets bonded with five different adhesive systems: in vitro study

Authors

MASARYKOVÁ, Nela (203 Czech Republic, belonging to the institution), Emil TKADLEC (203 Czech Republic), Zdeněk CHLUP (203 Czech Republic), Jan VRBSKÝ (203 Czech Republic), Alena BRYŠOVÁ (203 Czech Republic, belonging to the institution), Pavlína ČERNOCHOVÁ (203 Czech Republic, belonging to the institution) and Lydie IZAKOVIČOVÁ HOLLÁ (203 Czech Republic, guarantor, belonging to the institution)

Edition

BMC Oral Health, London, BMC, 2023, 1472-6831

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30208 Dentistry, oral surgery and medicine

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.900 in 2022

RIV identification code

RIV/00216224:14110/23:00131854

Organization unit

Faculty of Medicine

UT WoS

001063950500004

Keywords in English

Adhesive; bracket; demineralization; microleakage; orthodontics; thermal cycling

Tags

Tags

International impact, Reviewed
Změněno: 29/1/2024 14:14, Mgr. Tereza Miškechová

Abstract

V originále

Background Orthodontic treatment is associated with numerous adverse side effects, such as enamel discoloration, demineralization or even caries. The presence of microleakage between the enamel and the adhesive and between the adhesive and the base of the orthodontic bracket allows penetration of the bacteria, molecules, and liquids into the enamel and can lead to unpleasant "white spot lesions" or secondary caries beneath and around the brackets. The aim of this in vitro study was to evaluate microleakage in five adhesive systems commonly used in orthodontic practice for bonding brackets.Methods One hundred extracted premolars were divided into five groups of twenty teeth. Stainless steel Legend medium metal brackets were bonded to teeth using five adhesive systems: resin-reinforced glass ionomer cement GC Fuji Ortho LC (GCF) and composite materials Light Bond (LB), Transbond XT (TB), Trulock (TM) Light Activated Adhesive (TL), and GC Ortho Connect (GCO). The specimens were subjected to thermal cycling, stained with 2% methylene blue, sectioned with low-speed diamond saw Isomet and evaluated under a digital microscope. Microleakage was detected at the enamel-adhesive and adhesive-bracket interfaces from occlusal and gingival margins. Statistical analysis was performed using generalized linear mixed models with beta error distribution.Results Microleakage was observed in all materials, with GCF showing the highest amount of microleakage. Composite materials GCO, TB, and LB exhibited the lowest amount of microleakage with no statistical difference between them, while TL showed a statistically significantly higher amount of microleakage (p < 0.001). The enamel-adhesive interface had more microleakage in all composite materials (GCO, LB, TB, and TL) than the adhesive bracket-interface (p < 0.001). The highest amount of microleakage occurred in the gingival region in all materials.Conclusion Composite materials showed better adhesive properties than a resin-reinforced glass ionomer cement. The presence of microleakage at the enamel-adhesive interface facilitates the penetration of various substances into enamel surfaces, causing enamel demineralization and the development of dental caries.

Links

MUNI/A/1398/2022, interní kód MU
Name: Etiopatogeneze, diagnostika, prevence a léčba nemocí dutiny ústní
Investor: Masaryk University, Etiopathogenesis, diagnosis, prevention and treatment of diseases of the oral cavity