Hyeon Seo

Mr. Hyeon Seo

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Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 June 2021 in Korean Journal of Dental Materials
Verified
Journal Article
Closed access
YPYun-Jeong Park
Yun-Jeong Park
JKJu-Hee Kang
Ju-Hee Kang
HSHyeon Seo
Hyeon Seo
HSHo-Jun Song
Ho-Jun Song
Yeong-Joon ParkYeong-Joon Park
Yeong-Joon Park
치과용 MTA (Mineral Trioxide Aggregate) 시멘트의 긴 경화시간은 임상사용에서 큰 단점이다. 본 연구는 시판되는 9종 MTA제품의 경화시간을 ISO 6876:2012 표준방법에 따라 5회 반복 측정하였다. 평가된 재료는 ProRoot MTA (PR), Ortho MTA (Ortho), Retro MTA (Retro), Endocem MTA (Endocem), Endoseal MTA (Endoseal), One-Fil (OF), MTA Cem (MC), EZ-Seal (EZ), 및 Biodentine (BD) 이었다. 경화시간에 미치는 조성의 영향을 평가하기 위하여 XRD 및 XRF 분석을 시행하였다. 경화시간 결과값 사이의 유의성은 비모수 검정 방법인 Kruskal-Wallis 분석 후 Duncan 사후검정을 통해 다중분석하였다. 경화시간은 PR EZ OF Ortho Retro MC Endoseal BD Endocem 순 이었다 (p 0.001). PR은 가장 긴(369.4 분), Endocem은 가장 짧은(2.4 분) 경화시간을 보였다. Endocem (2.4 분), BD (16.0 분) 및 Endoseal (47.0 분)은 탄산칼슘(calcium carbonate)를 함유하였고, 그 다음으로 경화시간이 짧았던 MC (48.8 분), Retro (43.6 분), Ortho (65.0 분) 및 OF (165.4 분)는 알루민산 이석회(dicalcium aluminate)를 함유하였다. EZ (182.4 분)는 초기강도 형성에 기여하는 규산 삼석회(tricalcium silicate)보다는 규산 이석회(dicalcium silicate)가 주 결정상을 이뤘고, 황산칼슘(calcium sulfate)을 함유하였다. 가장 짧은 경화시간을 보인 Endocem은 가장 작은 d90 입도(6.12 μm)를 보였다. 본 연구결과는 MTA 시멘트의 경화시간 조절을 위한 조성 개발과 각 임상 증례에 적합한 경화시간을 갖는 제품의 선택에 도움이 될 것으로 사료된다.

17 September 2025 in Journal of Dental Sciences
Verified
Journal Article
Open access
YPYun-Jeong Park
Yun-Jeong Park
HSHyeon Seo
Hyeon Seo
YSYo Han Song
Yo Han Song
WCWeon-Young Choi
Weon-Young Choi
UAUMUGIRE Alphonse
UMUGIRE Alphonse
Yeong-Joon ParkYeong-Joon Park
Yeong-Joon Park

13 July 2026 in Materials
Verified
Journal Article
Open access
PDF file
YPYun Jeong Park
Yun Jeong Park
HSHyeon Seo
Hyeon Seo
WCWeon-Young Choi
Weon-Young Choi
UAUMUGIRE Alphonse
UMUGIRE Alphonse
HSHo-Jun Song
Ho-Jun Song
Yeong-Joon ParkYeong-Joon Park
Yeong-Joon Park
Calcium sulfate (CaSO4; CS) is added to dental calcium silicate cement (CSC) to regulate the hydration speed of the tricalcium aluminate phase. However, most commercial CSC products do not specify the CS hydration type, and reports on the role of CS are scarce. Therefore, the effects of the hydration type of the CS compound incorporated into CSC were evaluated. The synthesized CSC clinker was confirmed using XRD, TEM, and FT-IR. Subsequently, a ZrO2 (5 μm) radiopacifier was added at 20 wt%, and different types of CS compounds (either anhydrite, hemihydrate, or dihydrate) were added at 5 wt%. The hydration type of CS significantly affected the setting time and flowability (p < 0.05). The CS hemihydrate addition group showed the highest flowability, according to the ISO and LVDT methods (p < 0.05). The CS dihydrate addition group showed the lowest flowability, fastest setting time, and highest washout resistance and compressive strength. The 5 wt% addition of CaSO4 anhydrite significantly increased the setting time (p < 0.05). The CS-containing CSC groups showed cell viability levels similar to those of the CSC control group. These results provide valuable information for optimizing the selection of CS hydration type for manufacturing CSC tailored to specific clinical situations.