Article
Materials Science, Multidisciplinary
AlFulwah A. AlOtaibi, Nadia M. Taher
Summary: This study compared the repair bond strength of two single-shade composite resins bonded to different CAD-CAM substrates with different surface treatments. The results showed significant differences among the eight groups, with the highest bond strength observed in Lava Ultimate substrates repaired using Charisma Diamond ONE after APA treatment, and the lowest bond strength recorded in Vita Enamic group repaired using OMNICHROMA after SiCr treatment. Cohesive failure in the substrate was the most common failure mode. Charisma Diamond ONE showed better bond strength values compared to Omnichroma, and the use of APA was recommended for improved bond strength in repairs of Lava Ultimate restorations.
Article
Chemistry, Physical
Mohammed M. Gad, Zainab Albazroun, Fatimah Aldajani, Ahmed M. Elakel, Mai El Zayat, Sultan Akhtar, Soban Q. Khan, Saqib Ali, Ahmed M. Rahoma
Summary: Denture base fracture is a common problem in prosthodontics, and repairing the denture is a preferred solution. This study investigated the effect of surface treatment on the shear bond strength (SBS) of conventionally and digitally fabricated denture base resins. The results showed that 3D-printed resins had a lower SBS compared to conventional and CAD-CAM milled resins, while sandblasting and monomer application increased the SBS of the repaired resin.
Article
Engineering, Chemical
Muhammet Karadas
Summary: The study found that the surface porosity of aged composite resin does not affect the bond strength of adhesives. All adhesives showed higher bond strength compared to the non-adhesive group before and after thermocycling. The bond strength of adhesives decreases over time.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Sevda Ozturk Yesilirmak, Burcu Oglakci, Zumrut Ceren Ozduman, Evrim Eliguzeloglu Dalkilic
Summary: This study investigated the effects of different powers of Er:YAG laser on the shear bond strength of repaired CAD/CAM resin-based composite materials. The results showed that increasing laser power can improve the bond strength, with the 3 W laser treatment leading to adhesive failure. Additionally, the 3 W laser treatment resulted in smoother surfaces compared to other laser treatments.
Article
Polymer Science
Awiruth Klaisiri, Siriwan Suebnukarn, Nantawan Krajangta, Thanasak Rakmanee, Tool Sriamporn, Niyom Thamrongananskul
Summary: The application of morpholine on aged resin composite, with or without contamination with saliva, prior to the application of the adhesive agent, increases the bond strength of aged resin composite repaired with new resin composite.
Review
Construction & Building Technology
Dana Daneshvar, Ali Behnood, Agathe Robisson
Summary: This paper reviews the performance, design and environmental factors of concrete-to-concrete composites, and describes the test methods. The results show the importance of proper selection of overlay and bonding agent composition, interface condition, casting and curing conditions, as well as assessment techniques in enhancing structural performance and durability while reducing material usage and costs.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Dentistry, Oral Surgery & Medicine
Fatma Yilmaz, Basak Yazkan, Seyda Herguner Siso
Summary: This study aimed to evaluate the effects of different universal adhesives and surface treatments on the repair bond strength between resin composites. The results showed that different universal adhesives and surface treatments had different effects on the repair bond strength.
JOURNAL OF ESTHETIC AND RESTORATIVE DENTISTRY
(2022)
Article
Materials Science, Multidisciplinary
Kai Yu, Minting Wan, Kui Shi, Longjian Xue, Zhi Chen, Lu Zhang
Summary: The study found that removing different thicknesses of aged resin composites and repairing them with either the same or different composites can result in higher repair bond strength. Additionally, the surface roughness and water contact angle changed after ageing treatment.
FRONTIERS IN MATERIALS
(2021)
Article
Polymer Science
Marco Cen-Puc, Andreas Schander, Minerva G. Vargas Gleason, Walter Lang
Summary: Different surface treatment methods were applied to polyimide films, and the adhesive effects were compared. The research found that using oxygen plasma treatment with reactive ion etching equipment is the most promising approach for promoting adhesion between polyimide films.
Article
Medicine, General & Internal
O. Karadaglioglu, L. Gulec Alagoz, A. Caliskan, G. Aksoy Vaizoglu
Summary: This study compared the effects of different surface roughening processes on repair bond strength of aged composites. The results showed that surface roughening method is necessary for effective bond strength and the type of fillers in resin composite affects the micro-shear bond strength.
NIGERIAN JOURNAL OF CLINICAL PRACTICE
(2022)
Article
Dentistry, Oral Surgery & Medicine
Aaron Barto, Kraig S. Vandewalle, Wen Lien, Kyumin Whang
Summary: The study aimed to determine the efficacy of airborne-particle abrasion and/or a primer in the repair of composite resin-veneered PEEK prostheses. Results showed that repaired composite resin-veneered PEEK restorations with airborne particle abrasion and/or primer can provide shear bond strength (SBS) comparable to the initial SBS, with significantly lower SBS values in the negative control group without airborne-particle abrasion.
JOURNAL OF PROSTHETIC DENTISTRY
(2021)
Article
Construction & Building Technology
Ahmed Fathy, Han Zhu, Mohamed Kohail
Summary: This study investigated the bonding behavior of concrete repairs through the application of compression shear tests, considering different bonding agents, substrate moisture conditions, interface surface roughness, and testing types. The obtained test results validated the effectiveness of the tilted cube test.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Engineering, Manufacturing
Gongda Zhang, Qi Zhu, Hongbing Yang, Can Yang, Yayun Liu, Chuanyang Wang
Summary: This paper investigates the connection between metal and plastic by using surface pretreatment and laser welding. The results show that the metal surface with mesh micro-textures can achieve the maximum tensile shear strength, and the arrangement of the mesh array micro-textures improves the stress distribution during the welding process. The XPS analysis demonstrates the formation of a new chemical bond between the metal and plastic, which enhances the welding strength.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Chemistry, Physical
Tugce Merve Ordueri, Mehmet Muzaffer Ates, Mutlu Ozcan
Summary: The aim of this study was to compare the bond strength of resin composite and porcelain laminate veneers in the indirect repair and direct repair methods for porcelain veneer fracture cases of zirconia-based fixed dental prostheses. The results showed that the bond strength of the indirect repairs made with laminate material was higher than that of the direct repairs made with composite. The adhesive failure was mostly seen in the groups repaired with the composite.
Article
Dentistry, Oral Surgery & Medicine
Hamid Neshandar Asli, Samiye Rahimabadi, Yasamin Babaee Hemmati, Mehran Falahchai
Summary: The study assessed the effects of different surface treatments on repaired 3D-printed denture base's surface roughness and flexural strength. Results showed that all surface treatments significantly increased surface roughness and flexural strength, but none matched the strength of the intact group. Among the treatments, bur grinding provided the highest flexural strength.
JOURNAL OF PROSTHETIC DENTISTRY
(2021)
Article
Engineering, Biomedical
Farhad Sobouti, Nasim Chiniforush, Hamid Jaahed Saravani, Mohammad Noroozian, Mark Cronshaw, Reza Alizadeh Navaei, Vahid Rakhshan, Sepideh Dadgar
Summary: The study showed that the combination of compound topical anesthetic and photobiomodulation therapy provided adequate local anesthesia for the placement of miniscrews in the buccal side of the maxillary bone during the procedure and effectively reduced postoperative pain levels.
LASERS IN MEDICAL SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Vahid Rakhshan, Fataneh Ghorbanyjavadpour, Negin Ashoori
Summary: This study aimed to measure the dimensions of permanent dentition in Iranian orthodontic patients and establish cut-off points for sex identification based on these measurements. The results showed that sex dimorphism was common in dental measurements, influenced by various factors, with mandibular canines being the most appropriate teeth for sex identification.
BIOMED RESEARCH INTERNATIONAL
(2022)
Review
Biotechnology & Applied Microbiology
Farhad Sobouti, Mehdi Aryana, Sepideh Dadgar, Reza Alizadeh Navaei, Vahid Rakhshan
Summary: This study compared and summarized the effects of various porcelain surface treatments on the bonding of orthodontic brackets to feldspathic porcelain restorations. The results indicated that certain methods may provide stronger bond strength.
BIOMED RESEARCH INTERNATIONAL
(2022)
Editorial Material
Mathematical & Computational Biology
Vahid Rakhshan, Alexandre Hideki Okano, Zhiyong Huang, Gianluca Castelnuovo, Abrahao F. Baptista
COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Vahid Rakhshan, Peyman Hassani-Abharian, Mohammadtaghi Joghataei, Mohammad Nasehi, Reza Khosrowabadi
Summary: This study aimed to assess the effects of different frequencies of binaural beats on working memory and attention. The results showed that 10 Hz binaural beats can improve certain cognitive parameters in the visuospatial modality, but not in the auditory-verbal modality. Additionally, short-term training can enhance working memory and attention.
BIOMED RESEARCH INTERNATIONAL
(2022)
Article
Dentistry, Oral Surgery & Medicine
Milad Shamohammadi Heidari, Mehrnaz Moradinejad, Hamed Tabatabaei, Vahid Rakhshan
Summary: This preliminary study examined the effectiveness of three new adhesives containing zirconia primers in attaching metal orthodontic brackets to zirconia crowns. The results showed that all three adhesives provided sufficient shear bond strengths to attach the brackets without damaging the zirconia.
INTERNATIONAL JOURNAL OF DENTISTRY
(2022)
Article
Dentistry, Oral Surgery & Medicine
Shirin Taravati, Zohreh Balak, Vahid Rakhshan
Summary: This study aimed to evaluate the accuracy of digital radiography in the diagnosis of external root resorption in deciduous teeth. The results showed that digital radiography can provide a good accuracy in diagnosing and measuring external root resorption in deciduous teeth, but there might be an overestimation in the size of resorption in girls and cases with actual lesions smaller than 3mm.
INTERNATIONAL JOURNAL OF DENTISTRY
(2022)
Article
Engineering, Biomedical
Daniela S. Masson-Meyers, Fahimeh Tabatabaei, Lane Steinhaus, Jeffrey M. Toth, Lobat Tayebi
Summary: The development of vascularized scaffolds is a major challenge in tissue engineering, and co-culturing with endothelial cells is a possible approach. In this study, human umbilical vein endothelial cells (HUVECs) and fibroblasts were cultured on collagen scaffolds using different culture conditions. The results showed that collagen gel scaffolds supported cell proliferation and viability, while collagen sponge scaffolds were fragile and lacked signs of vascularization. However, under the experimental conditions, the HUVEC/fibroblast-seeded scaffolds were not suitable for generating in vitro prevascularized equivalents.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2023)
Article
Biotechnology & Applied Microbiology
Marzieh Mazhari, Mehrnaz Moradinejad, Mohsen Mazhary, Atefe Rekabi, Vahid Rakhshan
Summary: This study compared the effects of rigid and nonrigid connecting wires on the stress, anchorage loss, and risk of root resorption of miniscrews using finite element analysis. The results showed that using a rigid connecting wire can provide better control of the anchorage and reduce the risk of root resorption, but it increases the risk of miniscrew failure. The stress on the miniscrew is higher with a rigid connection, while it is lower with a nonrigid connection. Parametric analysis showed that a higher elastic modulus of the connecting wire in the nonrigid anchorage reduces the anchorage loss and risk of root resorption, but increases the stress on the miniscrew.
BIOMED RESEARCH INTERNATIONAL
(2022)
Editorial Material
Clinical Neurology
Vahid Rakhshan, Donald B. Giddon, Milica Prostran, Leonard Khiroug, Matteo Martini
PAIN RESEARCH & MANAGEMENT
(2023)
Article
Dentistry, Oral Surgery & Medicine
Negin Ashoori, Fataneh Ghorbanyjavadpour, Vahid Rakhshan
Summary: In this study, a total of 44 nonmetric dental traits/anomalies were reported in 331 non-syndromic orthodontic patients. Sex dimorphism was uncommon among these traits, and certain dental abnormalities or variations may be associated with skeletal malocclusions.
Article
Multidisciplinary Sciences
Farzin Sarkarat, Diba Bagheri, Roozbeh Kahali, Ali Fateh, Vahid Rakhshan
Summary: This study evaluated the effects of incorporating lidocaine into botulinum toxin A on post-injection pain and complications for the first time. The results showed that the incorporation of lidocaine can reduce pain without affecting post-injection complications.
SCIENTIFIC REPORTS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Ozra Niknam, Milad Shamohammadi, Zeynab Ataei, Vahid Rakhshan
Summary: This study investigated the effects of three orthodontic bracket adhesives and three resin removal methods on enamel discoloration. The results showed that all nine combinations of adhesives and resin removal techniques caused visible discolorations. Self-etch composites or RMGI might be recommended over total etch composites for adhesive selection. Using Stainbuster burs together with tungsten carbide burs is recommended to reduce discoloration. However, the choice of adhesive removal technique can greatly affect the coloration caused by each composite type.
INTERNATIONAL JOURNAL OF DENTISTRY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Mohamad Ali Ranjbaran, Farzin Aslani, Alireza Jafari-Naeimi, Vahid Rakhshan
Summary: This study investigated the influence of labial frenum attachment types on the occurrence or type of maxillary canine impaction. It was found that buccal type of impaction was positively associated with papillary labial frenums. Canine impaction occurred 3.6 times more frequently in cases with lateral abnormality. Midline diastema was positively and independently associated with canine impaction, papillary frenums, and abnormal laterals.
INTERNATIONAL ORTHODONTICS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Nasim Shams, Arash Dabbaghi, Bahar Shams, Lida Naderi, Vahid Rakhshan
Summary: The diameter of PSAA in this Iranian population is smaller compared to other populations, with very few large canals present. Although the average diameter increased in the anterior regions, large canals were not present in these regions. Males tend to have larger PSAAs, age might not change canal parameters, gender might affect canal diameter, and right/left sides are similar in terms of PSAA anatomy.
JOURNAL OF MAXILLOFACIAL & ORAL SURGERY
(2022)
