Article
Dentistry, Oral Surgery & Medicine
Choltacha Harnirattisai, Watcharaporn Kuphasuk, Chirayu Ruengrungsom, Supawadee Naorungroj, Vanthana Sattabanasuk
Summary: This study aimed to evaluate the optical match between enamel and resin composites fabricated using mono-layered and double-layered techniques. The results showed that double-layered composites had better optical matching in terms of translucency and color.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Yaoxin Wang, Zijing Chang, Ning Ding, Zutai Zhang
Summary: This study found that compared with NaF-containing etchant, SnF2-containing etchant could improve the dentin substrate, increase remineralization, improve bonding strength, and enhance antibacterial ability, especially by increasing resistance to acid erosion.
JOURNAL OF PROSTHETIC DENTISTRY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Alban Desoutter, Didier Felbacq, Csilla Gergely, Bela Varga, Laurent Bonnet, Pascal Etienne, Remy Vialla, Frederic Cuisinier, Hamideh Salehi, Emmanuel Rousseau, Benoit Ruffle
Summary: Studying the chemical and micro-biomechanical properties of dentin, enamel, and the dentin-enamel junction (DEJ) is important for understanding tooth resilience and crack propagation prevention. This study used Brillouin and Raman microscopy techniques to investigate the DEJ and found correlations between mechanical and chemical properties. Additionally, the daily cross striations of enamel were successfully observed for the first time. The application of Brillouin scattering microscopy can provide insights into tissue histology.
ARCHIVES OF ORAL BIOLOGY
(2023)
Article
Physiology
Alban Desoutter, Olivier Cases, Pierre Yves Collart Dutilleul, Victor Simancas Escorcia, Vidjea Cannaya, Frederic Cuisinier, Renata Kozyraki
Summary: This study provides a structural and chemical analysis of enamel, dentin, and DEJ in ERS patients, revealing severe enamel formation compromise and dentinal defects as additional features of the ERS dental phenotype.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Medicine, General & Internal
Zaki Hakami, Hussain Y. A. Marghalani, Ismaeel Hedad, Mazen Khawaji, Ghadah Abutaleb, Amjad Hakami, Salem Almoammar, Abdulrahman Alshehri
Summary: This study compared tooth color and enamel and dentinal thickness between orthodontically treated and untreated individuals. The results showed significant differences in tooth color but not in enamel and dentinal thickness between the two groups. There were weak to moderate correlations between tooth color and enamel and dentinal thickness.
Article
Biochemistry & Molecular Biology
Jason G. Randall, John Gatesy, Mark S. Springer
Summary: The loss of teeth and evolution of baleen racks in Mysticeti allowed baleen whales to diversify and feed on zooplankton. Genomic studies suggest that the genetic toolkit for enamel production was inactivated in the common ancestor of baleen whales. However, molecular studies have not provided direct evidence for the complete loss of teeth on the mysticete branch. To address these questions, protein-coding sequences of tooth-related genes were analyzed. The results suggest a two-step model for tooth loss in baleen whales, with enamel loss occurring early and dentin loss occurring later.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2022)
Article
Physiology
P. E. Lancaster, F. A. Carmichael, V. Clerehugh, D. S. Brettle
Summary: This study evaluated the emissivity of human enamel and dentin and assessed the emissivity value of natural caries in these tissues. The results showed that healthy enamel had higher emissivity values, while carious lesions had lower emissivity values.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Dentistry, Oral Surgery & Medicine
Yan Su, Miao Xin, Xiaodong Chen, Wenzhong Xing
Summary: The study aimed to analyze the color differences between milled veneers fabricated with different CAD-CAM ceramic materials and natural teeth. Results showed significant effects of different ceramic materials on the hue of milled veneers, but not on the lightness values; the color of the milled veneer was able to match that of the natural tooth.
JOURNAL OF PROSTHETIC DENTISTRY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Alban Desoutter, Amel Slimani, Herve Tassery, Frederic Cuisinier, Salavatore Sauro, Hamideh Salehi, Ivan Panayotov
Summary: This study utilized confocal Raman microscopy to analyze the chemical distribution of tufts and spindles in human dental enamel, revealing that spindles are less mineralized than enamel and tufts in the groove may play a role in long term resilience against mechanical stress.
ARCHIVES OF ORAL BIOLOGY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Tuba Yilmaz Savas, Filiz Aykent
Summary: The optical properties of zirconia-based systems are significantly influenced by different fabrication techniques even when the same nominal shade is used. Therefore, factors such as color reproduction, translucence, opalescence, and fluorescence of the selected materials should be taken into consideration for satisfactory color matching.
JOURNAL OF PROSTHETIC DENTISTRY
(2021)
Article
Instruments & Instrumentation
Jayanaraian F. Martins Andrade, Thamires da Cunha Miranda, Marcilio Cunha-Filho, Stephania Fleury Taveira, Guilherme M. Gelfuso, Tais Gratieri
Summary: Iontophoresis has been extensively explored for drug delivery in hard tissues such as nails and teeth. It offers a promising option to enhance drug permeation and distribution, improving treatment efficacy and comfort for patients.
DRUG DELIVERY AND TRANSLATIONAL RESEARCH
(2023)
Article
Chemistry, Physical
Gaetano Paolone, Claudia Mazzitelli, Francesca Boggio, Lorenzo Breschi, Alessandro Vichi, Enrico Gherlone, Giuseppe Cantatore
Summary: This study evaluated the effect of different experimental staining procedures on the color stability and translucency of a nano-hybrid resin-based composite. The results showed that using a toothpaste with a high abrasive level resulted in greater color change compared to using a toothpaste with a low abrasive level. Repolishing procedures were able to partially reduce the color change induced by artificial staining.
Article
Dentistry, Oral Surgery & Medicine
Juliana L. de Sa, Jardel S. Silva, Fernando J. Herkrath, Michael W. Favoreto, Alessandra Reis, Luciana M. Silva, Alessandro D. Loguercio, Leandro M. Martins
Summary: The study on 35 participants found that extending the gingival barrier to the cervical region did not reduce the risk and intensity of bleaching sensitivity, nor impact the bleaching effectiveness.
AMERICAN JOURNAL OF DENTISTRY
(2021)
Article
Agriculture, Dairy & Animal Science
Leticia Orellana, Duarte Neves, James Krehling, Raquel Burin, Patricia Soster, Leopoldo Almeida, Andrea Urrutia, Luis Munoz, Cesar Escobar, Matthew Bailey, Bernardo Chaves-Cordoba, Chance Williams, Marco Rebollo, Ken Macklin
Summary: The study investigated the effects of shell translucency and coloration lightness on shell thickness, hatchability, and chick weight. The results showed that dark eggs were heavier and had higher hatchability and thicker shells compared to light eggs. Eggs with a lower translucency score had higher hatchability and chick weight but thinner shells compared to eggs with a higher translucency score. An interaction effect was observed for eggshell thickness, lightness value, and translucency score.
Review
Materials Science, Multidisciplinary
Louis Hardan, Monika Lukomska-Szymanska, Maciej Zarow, Carlos Enrique Cuevas-Suarez, Rim Bourgi, Natalia Jakubowicz, Krzysztof Sokolowski, Camillo D'Arcangelo
Summary: After restoring class II cavities in an oral environment with low stress bulk-fill flowable composite covered with conventional composite, a homogeneous and stable bond to tooth structure was observed after one year of aging. However, some defects within the dentin-resin composite interface were noted.
Article
Materials Science, Multidisciplinary
Bong-Hyuk Choi, Yun Kee Jo, Cong Zhou, Hyon-Seok Jang, Jin-Soo Ahn, Sang Ho Jun, Hyung Joon Cha
APPLIED MATERIALS TODAY
(2020)
Article
Nanoscience & Nanotechnology
Hoon Kim, Kwang-Hyun Ryu, Dooyoung Baek, Tanveer Ahmed Khan, Hyun-Joong Kim, Sungchul Shin, Jinho Hyun, Jin Soo Ahn, Sug-Joon Ahn, Hyun Jeong Kim, Jaseung Koo
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Nanoscience & Nanotechnology
Ji-Seop Shin, Muhammad Saqib, Minkyeong Jo, Kwangho Park, Kwang Min Park, Jin Soo Ahn, Hyung-Tae Lim, Jun-Young Park
Summary: The long-term thermal cycling has an impact on the durability of solid oxide fuel cells, with rapid thermal cycling leading to more severe performance degradation primarily due to electrode deterioration.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biotechnology & Applied Microbiology
En-ji Cheon, Sung-Ho Kim, Dong-Keon Lee, Yun-Kee Jo, Mi-Ran Ki, Chang-Joo Park, Hyon-Seok Jang, Jin-Soo Ahn, Seung-Pil Pack, Sang-Ho Jun
Summary: The composite of beta-TCP and collagen (beta-TCP/col) showed a comparable bone-regenerating ability to the most commercially available Bio-Oss Collagen (R), inducing significantly accelerated bone formation in in vitro and in vivo experiments. Cells on the beta-TCP/col scaffold exhibited higher expression levels of osteogenic differentiation marker genes compared to Bio-Oss/col scaffold, indicating the potential of beta-TCP/col as a substitute for bone substitute materials.
BIOTECHNOLOGY AND BIOPROCESS ENGINEERING
(2021)
Article
Engineering, Biomedical
Eun-Hyuk Lee, Jin-Soo Ahn, Young-Jun Lim, Ho-Beom Kwon, Myung-Joo Kim
Summary: The post-curing time of 3D-printed resin for dental restorations significantly affects color stability and related properties such as degree of conversion, surface roughness, water contact angle, water sorption, and water solubility. Increasing post-curing time improves color stability, enhances degree of conversion, and decreases water contact angle.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Hyo-Jin Kim, Seung-Weon Lim, Mi-Kyung Lee, Sung Won Ju, Suk-Hee Park, Jin-Soo Ahn, Kyung-Gyun Hwang
Summary: This study aimed to compare the suitability of different 3D printing methods and the conventional method in the manufacturing of oral appliances. The results showed that the DLP method was the most suitable for manufacturing oral appliances in terms of water absorption and solubility, flexural strength, and surface hardness.
APPLIED SCIENCES-BASEL
(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
Eun-Hyuk Lee, Jin-Soo Ahn, Young-Jun Lim, Ho-Beom Kwon, Myung-Joo Kim
Summary: This in vitro study investigated the effects of layer thickness and printing orientation on the color stability and stainability of 3D-printed resin. The results showed that layer thickness, printing orientation, and storage time significantly influenced the color changes of the resin. Water contact angle and surface roughness did not have a significant effect on stainability.
JOURNAL OF PROSTHETIC DENTISTRY
(2022)
Article
Engineering, Chemical
Jin-Soo Ahn, Doo-Hwan Kim, Ki-Youn Kim
Summary: Airborne fungi emitted from livestock manure composting plants are a major health concern for workers and nearby residents. This study investigated the emission characteristics of airborne fungi in different types of composting plants and provided important data for preventing health issues among workers.
Article
Dentistry, Oral Surgery & Medicine
Se-Jun An, Hwalim Lee, Jin-Soo Ahn, Jung-Hwan Lee, Hae-Hyoung Lee, Yu-Sung Choi
Summary: The influence of thermal cycling and mechanical loading aging on fracture resistance and wear behavior of different chairside CAD/CAM premolar crowns was investigated. Glass-ceramic CAD/CAM crowns showed significantly higher fracture resistance than resin composite crowns. A 5-year TCML aging did not affect the fracture resistance of CAD/CAM crowns, but it produced larger wear tracks in resin nanoceramics than in other materials.
JOURNAL OF DENTISTRY
(2023)
Article
Cardiac & Cardiovascular Systems
Youn Huh, Jung Eun Yoo, Sang-Hyun Park, Kyungdo Han, Seon Mee Kim, Hye Soon Park, Kyung Hwan Cho, Jin-Soo Ahn, Sang Ho Jun, Ga Eun Nam
Summary: This study investigated the association between dental diseases, oral hygiene care, and the incidence of heart failure (HF) in patients with type 2 diabetes. The results showed that an increased number of missing teeth was associated with a higher risk of HF, while regular dental cleaning and frequent toothbrushing were associated with a decreased risk of HF. The presence of dental diseases increased the risk of HF, but good oral hygiene care further reduced the risk of HF.
JOURNAL OF THE AMERICAN HEART ASSOCIATION
(2023)
Article
Dentistry, Oral Surgery & Medicine
Jung-Hoon Choi, Seong-Joo Heo, Jai-Young Koak, Seong-Kyun Kim, Ji-Man Park, Jin-Soo Ahn
Summary: The purpose of this study was to evaluate the effect of hemispherical dimple structures on the retention of cemented crowns. The results showed that the use of dimples significantly increased the retention forces and higher abutment heights also increased the retention forces.
JOURNAL OF ADVANCED PROSTHODONTICS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Junsik Lee, Sungwon Ju, Jihyung Kim, Sion Hwang, Jinsoo Ahn
Summary: The purpose of this in vitro study was to compare the accuracy of various 3D printers and a milling machine. The results showed that the digital light processing (DLP) method was more accurate compared to the sereolithography (SLA) method using the same resin material.
JOURNAL OF ADVANCED PROSTHODONTICS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Seong-keun Yoo, Ye-Hyeon Jo, In-Sung Luke Yeo, Hyung-In Yoon, Jae-Hyun Lee, Jin-Soo Ahn, Jung-Suk Han
Summary: This study evaluated the surface characteristics of a clinically fabricated (Y, Nb)-TZP zirconia full veneer crown. The results showed that grinding and polishing significantly reduced surface roughness and reduced grain exposure. The conventional zirconia polishing sequence can achieve a clinically acceptable level of surface finishing.
JOURNAL OF ADVANCED PROSTHODONTICS
(2022)
Article
Dentistry, Oral Surgery & Medicine
Gerelmaa Myagmar, Jae-Hyun Lee, Jin-Soo Ahn, In-Sung Luke Yeo, Hyung-In Yoon, Jung-Suk Han
Summary: The study aimed to compare the wear resistance and surface roughness of three interim resin materials under chewing simulation. The results showed that the 3D printed resin material exhibited the least wear volume loss after 60,000 cycles, with a smoother surface compared to conventional resin material.
JOURNAL OF ADVANCED PROSTHODONTICS
(2021)