Restorative Dentistry & Endodontics

So-Rae Seong

2 Articles

Effect of the exponential curing of composite resin on the microtensile dentin bond strength of adhesives: So-Rae Seong, Duck-kyu Seo, In-Bog Lee, Ho-Hyun Son, Byeong-Hoon Cho; J Korean Acad Conserv Dent 2010;35(2):125-133. Published online March 31, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.2.125

Objectives

Rapid polymerization of overlying composite resin causes high polymerization shrinkage stress at the adhesive layer. In order to alleviate the shrinkage stress, increasing the light intensity over the first 5 seconds was suggested as an exponential curing mode by an LED light curing unit (Elipar FreeLight2, 3M ESPE). In this study, the effectiveness of the exponential curing mode on reducing stress was evaluated with measuring microtensile bond strength of three adhesives after the overlying composite resin was polymerized with either continuous or exponential curing mode.

Methods

Scotchbond Multipurpose Plus (MP, 3M ESPE), Single Bond 2 (SB, 3M ESPE), and Adper Prompt (AP, 3M ESPE) were applied onto the flat occlusal dentin of extracted human molar. The overlying hybrid composite (Denfil, Vericom, Korea) was cured under one of two exposing modes of the curing unit. At 48h from bonding, microtensile bond strength was measured at a crosshead speed of 1.0 mm/min. The fractured surfaces were observed under FE-SEM.

Results

There was no statistically significant difference in the microtensile bond strengths of each adhesive between curing methods (Two-way ANOVA, p > 0.05). The microtensile bond strengths of MP and SB were significantly higher than that of AP (p < 0.05). Mixed failures were observed in most of the fractured surfaces, and differences in the failure mode were not observed among groups.

Conclusion

The exponential curing method had no beneficial effect on the microtensile dentin bond strengths of three adhesives compared to continuous curing method.

Citations

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The effect of the strength and wetting characteristics of Bis-GMA/TEGDMA-based adhesives on the bond strength to dentin
Eun-Sook Park, Chang-Keun Kim, Ji-Hyun Bae, Byeong-Hoon Cho
Journal of Korean Academy of Conservative Dentistry.2011; 36(2): 139. CrossRef

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A clinical evaluation of a bleaching strip containing 2.9% hydrogen peroxide: Eun-Sook Park, So-Rae Seong, Seong-Tae Hong, Ji-Eun Kim, So-Young Lee, Soo-Youn Hwang, Shin-Jae Lee, Bo-Hyoung Jin, Ho-Hyun Son, Byeong-Hoon Cho; J Korean Acad Conserv Dent 2006;31(4):269-281. Published online July 31, 2006; DOI: https://doi.org/10.5395/JKACD.2006.31.4.269

Abstract PDF PubReader ePub

This study evaluated the effectiveness and safety of an experimental bleaching strip (Medison dental whitening strip, Samsung medical Co., Anyang, Korea) containing 2.9% hydrogen peroxide. Twenty-three volunteers used the bleaching strips for one and a half hour daily for 2 weeks. As control group, the same strips in which hydrogen peroxide was not included were used by 24 volunteers with the same protocol. The shade change (ΔE*, color difference) of twelve anterior teeth was measured using Shade Vision (X-Rite Inc., S.W. Grandville, MI, USA), Chroma Meter (Minolta Co., Ltd. Osaka, Japan) and Vitapan classical shade guide (Vita Zahnfabrik, Germany). The shade change of overall teeth in the experimental group was significantly greater than that in the control group (p < 0.05) and was easily perceivable. The change resulted from the increase of lightness (CIE L* value) and the decrease of redness (CIE a* value) and yellowness (CIE b* value). The shade change of individual tooth was greatest in canine, and smallest in central incisor. The safety of the bleaching strip was also confirmed.

Citations

Citations to this article as recorded by

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Soon-Jeong Jeong
Journal of Dental Hygiene Science.2021; 21(2): 96. CrossRef
Efficacy of a self - applied paint - on whitening gel combined with wrap
Soo-Yeon Kim, Jae-Hyun Ahn, Ji-Young Kim, Jin-Woo Kim, Se-Hee Park, Kyung-Mo Cho
Journal of Dental Rehabilitation and Applied Science.2018; 34(3): 175. CrossRef
Effects of a whitening strip combined with a desensitizing primer on tooth color
Hae-Eun Shin, Sang-Uk Im, Eun-Kyung Kim, Jong-Hun Kim, Jae-Hyun Ahn, Youn-Hee Choi, Keun-Bae Song
Journal of Korean Academy of Oral Health.2016; 40(1): 31. CrossRef
A clinical evaluation of efficacy of an office bleaching gel containing 30% hydrogen peroxide
Sin-Young Kim, Je-Uk Park, Chang-Hyen Kim, Sung-Eun Yang
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The evaluation of clinical efficacy and longevity of home bleaching without combined application of In-office bleaching
Byunk-Gyu Shin, Sung-Eun Yang
Journal of Korean Academy of Conservative Dentistry.2010; 35(5): 387. CrossRef
Effect of the bleaching light on whitening efficacy
Jong-Hyun Park, Hye-Jin Shin, Deok-Young Park, Se-Hee Park, Jin-Woo Kim, Kyung-Mo Cho
Journal of Korean Academy of Conservative Dentistry.2009; 34(2): 95. CrossRef
Clinical study of shade improvement and safety of polymer-based pen type BlancTic Forte whitening agent containing 8.3% Carbamide peroxide
Jin-Kyung Lee, Sun-Hong Min, Sung-Tae Hong, So-Ram Oh, Shin-Hye Chung, Young-Hye Hwang, Sung-Yeop You, Kwang-Shik Bae, Seung-Ho Baek, Woo-Cheol Lee, Won-Jun Son, Kee-Yeon Kum
Journal of Korean Academy of Conservative Dentistry.2009; 34(2): 154. CrossRef

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