Degree of Conversion and Polymerization Shrinkage of Low and High Viscosity Bulk-Fill Giomer-based and Resin-based composites (저점도 및 고점도 Bulk-fill Giomer 복합레진과 Bulk-fill 복합레진의 전환율과 중합수축)

Heera Kim (김희라); Jaesik Lee (이제식); Kim, Hyun - Jung (김현정); Taeyub Kwon (권태엽); NAM Soon-Hyeun (남순현)

doi:10.5933/JKAPD.2019.46.1.1

Degree of Conversion and Polymerization Shrinkage of Low and High Viscosity Bulk-Fill Giomer-based and Resin-based composites

Journal of the Korean academy of pediatric dentistry
Abbr : J Korean Acad Pediatr Dent
2019, 46(1), pp.1-9
DOI : 10.5933/JKAPD.2019.46.1.1
Publisher : The Korean Academy Of Pediatric Dentistry
Research Area : Medicine and Pharmacy > Dentistry
Received : October 1, 2018
Accepted : October 23, 2018
Published : February 28, 2019

Heera Kim ¹, Jaesik Lee ², Kim, Hyun - Jung ³, Taeyub Kwon ³, NAM Soon-Hyeun ³

¹경북대학교 치과대학 소아치과학교실
²경북대학교 치의학대학원 소아치과학교실
³경북대학교

Accredited

ABSTRACT

The aim of this study was to compare the degree of conversion and polymerization shrinkage of low and high viscosity bulk-fill giomer-based and resin-based composites. Two bulk-fill giomer (Beautifil Bulk Restorative (BBR), Beautifil Bulk Flowable (BBF)), two bulk-fill (Tetric N-Ceram Bulk-fill (TBF), SureFil SDR flow (SDR)) and two conventional resin composites (Tetric N-Ceram (TN), Tetric N-flow (TF)) were selected for this study. The degree of conversion was measured by using Fourier transform infrared spectroscopy. Polymerization shrinkage was measured with the linometer. For all depth, BBR had the lowest degree of conversion and SDR had the highest. At 4 mm, the degree of conversion of low and high viscosity bulk-fill giomer resin composites was lower than that of bulk-fill resin composites (p < 0.05). At the depth between 2 mm and 4 mm, there were significant difference with TBF, TN and TF (p < 0.05), while no significant difference in the degree of conversion was measured for BBR, BBF and SDR. Polymerization shrinkage of six resin composites decreased in the following order: TF > SDR > BBF > TBF > TN and BBR (p < 0.05). Polymerization shrinkage of bulk-fill giomer resin composites was lower than that of bulk-fill resin composites (p < 0.05). From this study, it is found that the bulk-fill giomer resin composites and TBF were not sufficiently cured in 4 mm depth. The degree of conversion of low and high viscosity bulk-fill giomer resin composites was significantly lower than bulk-fill resin composites in both 2 mm and 4 mm depths. Therefore, such features of bulk-fill giomer resin composites should be carefully considered in clinical application.

KEYWORDS

Bulk-fill giomer, Bulk-fill, Degree of conversion, Polymerization shrinkage

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* References for papers published after 2023 are currently being built.

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Journal of the Korean academy of pediatric dentistry 2023 KCI Impact Factor : 0.48

Degree of Conversion and Polymerization Shrinkage of Low and High Viscosity Bulk-Fill Giomer-based and Resin-based composites

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* References for papers published after 2023 are currently being built.

Journal of the Korean academy of pediatric dentistry 2023 KCI Impact Factor : 0.48

Degree of Conversion and Polymerization Shrinkage of Low and High Viscosity Bulk-Fill Giomer-based and Resin-based composites

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