Article
Polymer Science
Passent Ellakany, Shaimaa M. Fouda, Amr A. Mahrous, Maram A. AlGhamdi, Nourhan M. Aly
Summary: This study compared the mechanical properties of interim fixed dental prosthesis fabricated through different methods, with milled prostheses showing superior flexural strength, elastic modulus, and hardness compared to conventionally fabricated ones.
Article
Dentistry, Oral Surgery & Medicine
Murali Srinivasan, Nicole Kalberer, Nicolas Fankhauser, Manuel Naharro, Sabrina Maniewicz, Frauke Mueller
Summary: This study aimed to evaluate and compare the differences between milled and 3D-printed complete removable dental prostheses. While both treatment modalities showed similar effectiveness, 3D-printed prostheses required more maintenance time and costs.
JOURNAL OF DENTISTRY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Murali Srinivasan, Edward Chaoho Chien, Nicole Kalberer, Adrian Miguel Alambiaga Caravaca, Alicia Lopez-Castellano, Porawit Kamnoedboon, Salvatore Sauro, Mutlu Ozcan, Frauke Mueller, Daniel Wismeijer
Summary: The study quantitatively evaluated the elution of methylmethacrylate from CAD-CAM manufactured removable complete dentures using HPLC, finding significantly lower concentrations in 3D-printed RCDs compared to milled RCDs. Coating with an additional protective layer like Durecon or adopting an extended isopropanol wash cycle can further decrease the MMCs.
JOURNAL OF DENTISTRY
(2022)
Article
Dentistry, Oral Surgery & Medicine
Passent Ellakany, Shaimaa M. Fouda, Maram A. AlGhamdi, Nourhan M. Aly
Summary: This study compared the color stability and surface roughness of 3-unit provisional fixed partial dentures fabricated by milling, conventional, and different 3D printing techniques. The results showed that the milled resin had the lowest surface roughness and color change, followed by the SLA printed resin. Therefore, SLA printed resins can be used as an alternative to milled resins in the fabrication of provisional FPDs to overcome the high expenses.
JOURNAL OF DENTISTRY
(2023)
Article
Health Care Sciences & Services
Keunbada Son, Jung-Ho Lee, Kyu-Bok Lee
Summary: This study evaluated the intaglio surface trueness of interim dental crowns fabricated with different 3D printing and milling technologies. The results showed that milling technology had significantly higher trueness values, and the location of the intaglio surface had a significant impact on the trueness.
Article
Dentistry, Oral Surgery & Medicine
Bernardo Camargo, Evita Willems, Wout Jacobs, Kirsten Van Landuyt, Marleen Peumans, Fei Zhang, Jef Vleugels, Bart Van Meerbeek
Summary: This study compared the trueness and cement-space characteristics of crowns milled chairside, in the laboratory, and 3D-printed using inkjet technology. The results showed that 3D-printed zirconia crowns provide sufficient manufacturing accuracy for clinical use, and accurate milling and printing of the crown's intaglio marginal area are crucial.
Article
Chemistry, Multidisciplinary
Min-Su Kim, Min-Ho Hong, Bong-Ki Min, Young-Kyung Kim, Hyun-Jun Shin, Tae-Yub Kwon
Summary: The present study compared the microstructure, flexural strength, and fracture toughness of zirconia ceramics prepared via subtractive milling (SM) and stereolithography (SLA) methods. The analysis showed similar microstructures and phase compositions between the two ceramics, with no significant differences in flexural strength or fracture toughness.
APPLIED SCIENCES-BASEL
(2022)
Review
Polymer Science
HongXin Cai, Xiaotong Xu, Xinyue Lu, Menghua Zhao, Qi Jia, Heng-Bo Jiang, Jae-Sung Kwon
Summary: With the maturity of CAD/CAM technologies, 3D printing materials for dentistry have attracted research interest for their efficiency and low cost in clinical treatment. This review aims to classify, summarize, and discuss dental materials for 3D printing and 4D printing from a clinical perspective.
Article
Dentistry, Oral Surgery & Medicine
Vitor Trancoso Britto, Viviane Cantelli, Fabricio Mezzomo Collares, Charise Dallazem Bertol, Alvaro Della Bona
Summary: This study characterized the properties and biocompatibility of a resin-based polymer used for 3D printing provisional restorations and artificial teeth. The material showed adequate biomechanical behavior and water sorption. It was compared to bis-acryl composite resin and heat-cured acrylic resin.
Article
Chemistry, Multidisciplinary
Nada Aldahian, Rawaiz Khan, Mohammed Mustafa, Fahim Vohra, Ali Alrahlah
Summary: The study found that interim crowns fabricated using traditional methods had good adaptation but poor marginal fit, while those made with 3D printing had lower adaptation but better marginal fit. CAD-CAM and conventional fabrication showed comparable levels of adaptation, both significantly better than 3D printing.
APPLIED SCIENCES-BASEL
(2021)
Article
Dentistry, Oral Surgery & Medicine
Hao Ding, Zhiming Cui, Ebrahim Maghami, Yanning Chen, Jukka Pekka Matinlinna, Edmond Ho Nang Pow, Alex Siu Lun Fok, Michael Francis Burrow, Wenping Wang, James Kit Hon Tsoi
Summary: This study used an AI method called 3D-DCGAN to design dental crowns. The 3D-DCGAN design showed the closest similarity to natural teeth in terms of morphology and stress distribution.
Article
Dentistry, Oral Surgery & Medicine
Pietro Venezia, Vincenzo Ronsivalle, Lorenzo Rustico, Ersilia Barbato, Rosalia Leonardi, Antonino Lo Giudice
Summary: This study evaluated the accuracy of orthodontic models generated for clear aligners using four 3D printers with different technologies and market segments. The results showed that the accuracy of the models can be influenced by the technology and market segment of the printers used. The entry-level 3D printer was able to achieve accuracy close to the accepted clinical error for producing clear aligners.
JOURNAL OF DENTISTRY
(2022)
Article
Polymer Science
Jorge Palavicini, Sherrod L. Quin, Wael Zakkour, Karim Zakkour, Safa Manafi Varkiani, Xiaoming Xu, Nathaniel C. Lawson, Amir Hossein Nejat
Summary: This study compared the bond strength between two 3D-printed resins and three different reline materials. The results showed that both 3D-printed materials achieved higher bond strength when relined with PMMA compared to using Bis-acrylic or composite resin relines.
Article
Dentistry, Oral Surgery & Medicine
Sueli Mukai, Eduardo Mukai, Jose Arnaldo Santos-Junior, Jamil Awad Shibli, Marcelo Faveri, Gabriela Giro
Summary: This study compared the reproducibility and precision of surgical guides obtained using 3D printing and milling methods. The results showed that both methods achieved similar results in terms of trueness and precision, but there was a significant difference in the standard deviation of mismatches regarding accuracy from the master model.
Article
Dentistry, Oral Surgery & Medicine
Rodrigo Ottoni, Susana M. Salazar Marocho, Jason A. Griggs, Marcia Borba
Summary: This study evaluated the adaptation and fatigue behavior of lithium disilicate glass-ceramic (LD) monolithic crowns produced using 3D printing/press technique and CAD/CAM milling. The results showed that the fatigue behavior of crowns produced using 3D printing/press technique was similar to CAD/CAM milling, but had smaller gap thickness in the occlusal region.
JOURNAL OF DENTISTRY
(2022)
Article
Dentistry, Oral Surgery & Medicine
Jaewon Kim, Yu-Chun Lin, Michael Danielak, Minh Van, Du-Hyeong Lee, Hyeongil Kim, Praveen R. Arany
Summary: Progress in additive 3D printing is transforming biomaterial manufacturing in the field of clinical dentistry and prosthodontics. Using digital techniques and CAD software, surgical guides for crown lengthening can be produced with comparable effectiveness to conventional methods. However, further research is needed to address concerns regarding proximal bone reduction.
JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY
(2022)
Review
Dentistry, Oral Surgery & Medicine
Hai Yen Mai, Hang-Nga Mai, Ho-Jin Kim, Jaesik Lee, Du-Hyeong Lee
Summary: This systematic review and meta-analysis compared the accuracy of removable partial denture (RPD) frameworks fabricated by computer-aided design/ computer-aided manufacturing (CAD/CAM) systems and conventional casting methods. The study found that the fit accuracy of CAD/CAM-fabricated frameworks was lower than that of frameworks produced by the conventional casting method.
JOURNAL OF EVIDENCE-BASED DENTAL PRACTICE
(2022)
Review
Health Care Sciences & Services
Hang-Nga Mai, Van Viet Dam, Du-Hyeong Lee
Summary: This study is the first systematic review and meta-analysis that evaluates the accuracy of dental implant placements using AR navigation. The results indicate that AR navigation is more accurate than the freehand method and conventional navigation, and comparable to template-guided surgery. This review highlights the potential of AR navigation as an effective and accurate surgical guide for dental implant placement.
JOURNAL OF MEDICAL INTERNET RESEARCH
(2023)
Article
Biotechnology & Applied Microbiology
Jin-Han Park, Keunbada Son, Young-Tak Son, Yong-Gun Kim, Jo-Young Suh, Kyu-Bok Lee, Jae-Mok Lee
Summary: The present study aimed to confirm the usefulness of a multi-laser handpiece system currently under development. The results showed that there was no statistically significant difference between the multi-laser handpiece system and the conventional separate laser-implant handpiece system in terms of implant placement, except for implant initial stability. The multi-laser handpiece system is expected to provide the same results as the conventional system with higher implant initial stability, and potentially improve the clinical environment for clinicians.
BIOENGINEERING-BASEL
(2022)
Article
Chemistry, Multidisciplinary
KeunBaDa Son, Gyu Ri Kim, Won-Gi Kim, Wol Kang, Du-Hyeong Lee, So-Yeun Kim, Jae-Mok Lee, Yong-Gun Kim, Jin-Wook Kim, Sung-Tak Lee, Myoung-Uk Jin, Ho-Jin Kim, Jaesik Lee, Ji-Rak Kim, Kyu-Bok Lee
Summary: This study aimed to assess the preferences and requirements of various dental professionals regarding dental computer-aided design (CAD) software and artificial intelligence (AI). A total of 93 participants were included, and factor analysis was used to categorize the survey items into six categories. The results showed that design quality, convenience, margin line setting, and automatic margin setting were considered important. There were also differences in preferences among different dental personnel groups, and certain factors were more important to dentists and dental hygienists. Age, occupation, and work experience also influenced the importance of specific survey items.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Biomedical
Seung-Mo Eun, Keunbada Son, Sung-Min Hwang, Young-Tak Son, Yong-Gun Kim, Jo-Young Suh, Jun Ho Hwang, Sung-Min Kwon, Jong Hoon Lee, Hyun Deok Kim, Kyu-Bok Lee, Jae-Mok Lee
Summary: This study evaluated the effects of different mechanical debridement methods on the surface roughness of dental implants. It found that femtosecond laser-treated surfaces had higher roughness compared to conventionally machined and SLA surfaces. Mechanical debridement methods further increased the roughness of femtosecond laser-treated surfaces, while scaling reduced the roughness of SLA surfaces.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Engineering, Biomedical
Soo Kyum Bihn, Keunbada Son, Young-Tak Son, Ram Hari Dahal, Shukho Kim, Jungmin Kim, Jun Ho Hwang, Sung-Min Kwon, Jong Hoon Lee, Hyun Deok Kim, Jae-Mok Lee, Myoung-Uk Jin, Kyu-Bok Lee
Summary: This study evaluated the effect of laser treatment on the surface of zirconia implants on biofilm formation. The results showed that the use of a nanosecond laser effectively inhibited the growth of Porphyromonas gingivalis.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Medicine, General & Internal
Jun-Hyeong Park, Yong-Gun Kim, Jo-Young Suh, Du-Hyeong Lee, Jin-Wook Kim, Jae-Mok Lee
Summary: The purpose of this study is to compare the long-term maintenance of crestal approach and lateral approach in sinus elevation by evaluating the radiographic changes after implantation. The results showed significant bone formation with both approaches and minimal bone resorption over the course of 3 years. Both methods can be considered for implant placement according to the situation.
MEDICINA-LITHUANIA
(2023)
Article
Dentistry, Oral Surgery & Medicine
Hang-Nga Mai, Thaw Thaw Win, Minh Son Tong, Cheong-Hee Lee, Kyu-Bok Lee, So-Yeun Kim, Hyun-Woo Lee, Du-Hyeong Lee
Summary: This study investigated morphometric variations in different facial units during resting, posed, and spontaneous smiling. The results showed that minimal morphometric changes were observed at the upper and central forehead and nasal dorsum, while the largest deviation occurred at the nasal alar lobules. Spontaneous smiles resulted in larger facial unit changes compared to posed smiles, with significant differences observed in the alar lobules, central chin, and lateral chin units.
JOURNAL OF ADVANCED PROSTHODONTICS
(2023)
Article
Biotechnology & Applied Microbiology
KeunBaDa Son, Ji-Min Lee, Young-Tak Son, Jin-Wook Kim, Myoung-Uk Jin, Kyu-Bok Lee
Summary: This study aimed to evaluate muscle activation and fatigue in dentists during tooth preparation and intraoral scanning tasks. The results showed no significant difference in muscle activation and fatigue between the two types of dental unit chair systems. However, muscle fatigue significantly increased after simulating the use of intraoral scanner multiple times. To reduce the incidence of musculoskeletal disorders in dentists, it is necessary to avoid continuous intraoral scanning and tooth preparation and take appropriate rest.
BIOENGINEERING-BASEL
(2022)
Article
Dentistry, Oral Surgery & Medicine
Hai Yen Mai, Hang-Nga Mai, Cheong-Hee Lee, Kyu-Bok Lee, So-yeun Kim, Jae-Mok Lee, Keun-Woo Lee, Du-Hyeong Lee
Summary: This study investigated the accuracy of full-arch intraoral scans obtained by different scan strategies using segmental scan and merge methods. The results showed that the segmental scan and merge methods using two scan parts can be a reliable alternative to the single scan method.
JOURNAL OF ADVANCED PROSTHODONTICS
(2022)
Article
Health Care Sciences & Services
Keunbada Son, Young-Tak Son, Myoung-Uk Jin, Kyu-Bok Lee
Summary: This study aimed to investigate users' satisfaction with a dental unit chair. It found that the design and appearance quality, maintenance, and overall satisfaction with the water fountain and cuspidor have a significant impact on the overall satisfaction with the dental unit chair.