Article
Dentistry, Oral Surgery & Medicine
Peng Yu, Yong-Xiang Xu, Yu-Shu Liu
Summary: This study evaluated the polymerization shrinkage (PS) and shrinkage stress (SS) of bulk-fill resin-based composites (RBCs) and compared them with conventional non-bulk-fill RBCs. The results showed no significant differences in PS and SS between the bulk-fill RBCs and the conventional RBCs.
JOURNAL OF DENTAL SCIENCES
(2022)
Article
Dentistry, Oral Surgery & Medicine
Jiawei Yang, Nick Silikas, David C. Watts
Summary: This study investigated the degree of conversion, maximum polymerization rate, polymerization shrinkage, maximum shrinkage rate, and fracture toughness of different types of bulk-fill composites, as well as the effect of viscosity reduction techniques.
Article
Polymer Science
Fatin A. Hasanain, Hani M. Nassar, Reem A. Ajaj
Summary: The study aimed to investigate the effect of different depths and light source distances on the microhardness of BF resin composites. The results showed that increasing the light source distance and depth significantly affected the microhardness of the BF resin composites. The microhardness reduction was insufficient at depths of 4-6 mm.
Article
Dentistry, Oral Surgery & Medicine
Hamad Algamaiah, Nikolaos Silikas, David C. Watts
Summary: The study found that PFill group with addition fragmentation chain transfer (AFCT) agent had significantly lower polymerization shrinkage rates compared to the comparator ECeram, regardless of the irradiation protocol. In contrast, the PFlow group exhibited comparable results to EFlow and ECeram under different irradiation protocols. Overall, PFill consistently showed lower shrinkage stress results than ECeram and were comparable for both high irradiance protocols.
Article
Dentistry, Oral Surgery & Medicine
Dalia Kaisarly, Ruth Langenegger, Friederike Litzenburger, Katrin Heck, Moataz El Gezawi, Peter Roesch, Karl-Heinz Kunzelmann
Summary: This study investigated the polymerization shrinkage of bulk-fill resin composite in class-II cavities. The results showed that applying a thin flowable liner can reduce shrinkage vectors, and it is recommended to use a thin flowable liner when building a proximal resin composite wall.
Article
Chemistry, Physical
Daniel Pieniak, Agata M. M. Niewczas, Konrad Pikula, Leszek Gil, Aneta Krzyzak, Krzysztof Przystupa, Pawel Kordos, Orest Kochan
Summary: This study compared the effects of aging in artificial saliva and thermal shocks on the microhardness of nanohybrid composite and bulk-fill composite. The results showed that after thermocycling and 25 months of aging, the microhardness of the nanohybrid composite decreased by approximately 12-15%, while the bulk-fill composite decreased by approximately 22-24%. Additionally, the nanohybrid composite had a lower initial hardness than the bulk-fill composite, but it showed a lower relative reduction in hardness of approximately 10%.
Article
Dentistry, Oral Surgery & Medicine
Phoebe Burrer, Matej Par, Leo Fuerer, Michelle Stuebi, Danijela Marovic, Zrinka Tarle, Thomas Attin, Tobias T. T. Taubock
Summary: This study assessed the behavior of dual-cure and conventional bulk-fill composite materials on real-time linear shrinkage, shrinkage stress, and degree of conversion. The results showed that the low-viscosity materials had significantly higher linear shrinkage and shrinkage stress compared to the high-viscosity materials. Degree of conversion did not differ significantly between the polymerization modes of the dual-cure bulk-fill composite Fill-Up!, but the time to achieve maximum polymerization rate was significantly longer for the self-cure mode. However, significant differences in degree of conversion were found between the polymerization modes of the ion-releasing bulk-fill material Cention, which also exhibited the slowest polymerization rate of all materials when chemically cured.
CLINICAL ORAL INVESTIGATIONS
(2023)
Article
Polymer Science
Selma Jakupovic, Nedim Pervan, Elmedin Mesic, Alma Gavranovic-Glamoc, Anita Bajsman, Enis Muratovic, Lejla Kazazic, Alma Kantardzic-Kovacevic
Summary: This study evaluates the effect of different light-curing protocols on the microhardness of dental resin-based composites. The results show that the microhardness of the composites is more influenced by the composition of the material than the light-curing protocol. The weight percentage of fillers has a greater impact on the microhardness values compared to the volume percentage of fillers.
Article
Multidisciplinary Sciences
Yung-Soo Kim, Seung-Ho Baek, Ryan Jin Young Kim
Summary: This study evaluated the effect of vibration on adaptation of bulk-fill composite resin. The results showed that vibration can reduce the void formation at the bottom of the cavity in the incremental filling method, while it has no significant effect on the adaptation of composite resin in the bulk filling method.
SCIENTIFIC REPORTS
(2022)
Article
Dentistry, Oral Surgery & Medicine
Ashton E. Reno, Hoda S. Ismail, Brian R. Morrow, Anne E. Hill, Franklin Garcia-Godoy
Summary: The purpose of this study was to compare the microhardness values and bottom/top hardness ratios of different composites after being cured in different thicknesses. The results showed that the methacrylate-based bulk fill composite had the highest overall microhardness. All three composite types showed significant differences in microhardness between the top and bottom surfaces in the 4mm thickness.
AMERICAN JOURNAL OF DENTISTRY
(2023)
Article
Materials Science, Biomaterials
Xinyue Ma, Xiaoqing Zhang, Xiangya Huang, Fang Liu, Jingwei He, Sui Mai
Summary: This study synthesized and characterized different proportions of nonestrogenic di(meth)acrylate 9,9-bis[4-((2-(2-methacryloyloxy)ethyl-carbamate)ethoxy)phenyl] fluorine (Bis-EFMA)-based resin composite systems. The Bis-EFMA resin systems exhibited excellent physical, chemical, optical, and biological characteristics, as well as adhesive properties after bonding to a tooth. The Bis-EFMA showed potential as an alternative to Bis-GMA due to its superior properties.
BIOMATERIALS SCIENCE
(2023)
Article
Dentistry, Oral Surgery & Medicine
Dalia Kaisarly, Moataz El Gezawi, Andreas Kessler, Peter Roesch, Karl-Heinz Kunzelmann
Summary: This study compared bulk and incremental application methods in flowable bulk-fill and conventional composites, finding that the bulk application method had greater values of shrinkage vectors and a higher debonding tendency at the cavity floor.
CLINICAL ORAL INVESTIGATIONS
(2021)
Article
Multidisciplinary Sciences
Blend Hamza, Marcus Zimmerman, Thomas Attin, Tobias T. Taubock
Summary: This study compared the marginal integrity of bulk-fill and classical composite restorations in primary and permanent molars before and after thermo-mechanical loading. The high-viscous bulk-fill restorations showed similar marginal integrity to classical restorations in both primary and permanent molars, while the flowable bulk-fill restorations had the lowest marginal integrity among all restorations.
SCIENTIFIC REPORTS
(2022)
Article
Dentistry, Oral Surgery & Medicine
Magdalena A. Osiewicz, Arie Werner, Franciscus J. M. Roeters, Cornelis J. Kleverlaan
Summary: Bulk-fill composites have higher wear rates and lower hardness compared to traditional hybrid composites, making them less suitable for stress-bearing restorations.
Article
Engineering, Biomedical
Maria Tereza Hordones Ribeiro, Gabriel Felipe de Braganca, Lais Rani Sales Oliveira, Stella Sueli Lourenco Braga, Helena Leticia Quirino de Oliveira, Richard Bengt Price, Carlos Jose Soares
Summary: This study evaluated the effect of using two different pre-heating methods on three resin-based composite materials. The results showed that different pre-heating methods did not affect the mechanical properties of the materials, but pre-heating at different temperatures affected the shrinkage performance.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Engineering, Biomedical
Jung-Hoon Ro, Sung-Ae Son, Jeong-kil Park, Gye-Rok Jeon, Ching-Chang Ko, Yong Hoon Kwon
LASERS IN MEDICAL SCIENCE
(2015)
Article
Surgery
Sung-Ae Son, Jeong-Kil Park, Kyoung-Hwa Jung, Ching-Chang Ko, Chang-Mo Jeong, Yong Hoon Kwon
PHOTOMEDICINE AND LASER SURGERY
(2015)
Article
Instruments & Instrumentation
Kyoung-Hwa Jung, Eun-Mi Seon, An-Na Choi, Yong-Hoon Kwon, Sung-Ae Son, Jeong-Kil Park
Article
Dentistry, Oral Surgery & Medicine
Tae-sung Jeong, Jeong-Kil Park, Ching-Chang Ko, Franklin Garcia-Godoy, Yong Hoon Kwon
CLINICAL ORAL INVESTIGATIONS
(2019)
Article
Multidisciplinary Sciences
An-Na Choi, II-Seok Jang, Sung-Ae Son, Kyoung-Hwa Jung, Jeong-Kil Park
Article
Chemistry, Physical
Bit-Na Kim, Sung-Ae Son, Jeong-Kil Park
Article
Dentistry, Oral Surgery & Medicine
Sung-Ae Son, Jae-Hoon Kim, Jeong-Kil Park
Summary: The QLF device can detect microscopic tooth cracks through fluorescence images and provide information helpful for diagnosis and treatment.
JOURNAL OF ENDODONTICS
(2021)
Article
Chemistry, Physical
Yu-Ri Kim, Jae-Hoon Kim, Sung-Ae Son, Jeong-Kil Park
Summary: This study investigated the effect of silane-containing universal adhesives on the bonding strength of lithium disilicate. Results showed that regardless of silane treatment, groups treated with hydrofluoric acid (HF) exhibited higher bonding strengths compared to those not treated with HF. Silane application after HF treatment increased bonding strength in most groups, except for Prime & bond (PB) and Clearfil Universal Bond (CU) groups. Adhesive failures were dominant in all groups, with some mixed failures observed in the All-Bond Universal (ABU) group treated with HF and silane.
Article
Dentistry, Oral Surgery & Medicine
Jae-Hoon Kim, Sung-Ae Son, Hyeonjong Lee, Yeon-Jee Yoo, Seoung-Jin Hong, Jeong-Kil Park
Summary: This study evaluated the influence of adjacent teeth on the accuracy of intraoral scanning systems for class II inlay preparation. The presence of adjacent teeth negatively affected the accuracy of all tested IOS systems, with Primescan showing the highest accuracy. Despite the differences among the systems, each IOS system demonstrated clinically acceptable levels of accuracy for class II inlay preparation.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2022)
Article
Dentistry, Oral Surgery & Medicine
Soojin Park, Jae-Hoon Kim, Min-Kyung Lee, Jung-Joon Ihm, Jin-Soo Ahn, Jeong-Kil Park, Deog-Gyu Seo
Summary: This study aimed to compare the temperature changes of gold-restored teeth and intact teeth during the consumption of hot and cold drinks. The results showed that gold-restored teeth exhibited greater temperature changes in terms of magnitude and velocity compared to intact teeth.
EUROPEAN JOURNAL OF ORAL SCIENCES
(2022)
Article
Dentistry, Oral Surgery & Medicine
Won-Jang Jin, Yeon-Jee Yoo, Jeong-Kil Park, Deog-Gyu Seo
Summary: This study quantitatively investigated the penetration of lipopolysaccharide (LPS) through adhesive ceramic restorations. The results showed that dentin and ceramic bonded with etch-and-rinse resin cements had significantly less LPS penetration compared to those bonded with self-adhesive resin cement.
JOURNAL OF DENTAL SCIENCES
(2023)
Article
Oncology
Sung-Ae Son, Jae-Hoon Kim, Jeong-Kil Park
Summary: This case report discusses the clinical application of a quantitative light-induced fluorescent (QLF) device for diagnosing and treating cracked teeth by visualizing the cracks. The images obtained with the QLF device provide useful information for detecting cracks, documenting the treatment process, and managing the restoration of cracked teeth.
PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY
(2023)
Article
Multidisciplinary Sciences
Go-Eun Lim, Sung-Ae Son, Bock Hur, Jeong-Kil Park
Article
Chemistry, Physical
An-Na Choi, Ji-Hye Lee, Sung-Ae Son, Kyoung-Hwa Jung, Yong Hoon Kwon, Jeong-Kil Park