keyword
https://read.qxmd.com/read/38443910/marginal-adaptation-and-fracture-resistance-of-virgilite-based-occlusal-veneers-with-varying-thickness
#1
JOURNAL ARTICLE
Amr Rizk, Jylan El-Guindy, Ahmed Abdou, Reem Ashraf, Citra Kusumasari, Farid Emad Eldin
STATEMENT OF PROBLEM: CAD/CAM occlusal veneers have been developed for minimally invasive prosthetic restoration of eroded teeth. Marginal adaptation and fracture resistance are crucial for the long-term survivability and clinical success of such restorations. Virgilite-based lithium disilicate glass-ceramic is a newly introduced material with claims of high strength. However, constructing occlusal veneers from this material of varying thickness has not been investigated. PURPOSE: The current study aimed to assess the impact of CAD/CAM occlusal veneer thickness and materials on marginal adaptation and fracture resistance...
March 5, 2024: BMC Oral Health
https://read.qxmd.com/read/38432950/how-the-repair-bonding-strength-of-hybrid-ceramic-cad-cam-blocks-is-influenced-by-the-use-of-surface-treatments-and-universal-adhesives
#2
JOURNAL ARTICLE
İbrahim Doğan, Emel Karaman
We examined how different methods of surface treatment and different universal adhesives with or without extra silane affected the repair bonding strength of hybrid ceramic CAD/CAM restorations. Cerasmart specimens (n=320) were subjected to thermocycling and assigned to the following surface pretreatment protocols: control, diamond bur (DB), hydrofluoric acid (HF), and tribochemical silica coating (TSC). Half the specimens received a coating of silane, followed by application of the universal adhesives Futurabond M+ (FMU), Tokuyama Universal Bond (TUB), Single Bond Universal (SBU), or Clearfil Universal Bond Quick (CUQ) (n=10)...
March 1, 2024: Dental Materials Journal
https://read.qxmd.com/read/38276890/comparison-of-adhesion-performance-of-a-self-curing-and-a-light-curing-universal-adhesive-to-various-dental-substrates-and-cad-cam-materials
#3
JOURNAL ARTICLE
Cristina M P Vidal, Erica C Teixeira, Steven R Armstrong, Fang Qian
PURPOSE: To compare the adhesion of a self-curing (Tokuyama Universal Bond, TUB) and a light-curing (Scotchbond Universal, SBU) universal adhesive to CAD/CAM materials, enamel, and dentin. This study also assessed differences in enamel adhesion between self-etch vs selective etching modes, as well as immediate and long-term adhesion to dentin for both adhesives. MATERIALS AND METHODS: Shear bond strength (SBS) testing was used to assess adhesion to enamel, dentin, Lava Ultimate (LU), Vita Enamic (VE), IPS e...
January 15, 2024: Journal of Adhesive Dentistry
https://read.qxmd.com/read/38240152/bond-strength-to-lithium-disilicate-ceramic-after-different-surface-cleaning-approaches
#4
JOURNAL ARTICLE
Federico Del Bianco, Claudia Mazzitelli, Tatjana Maravic, Uros Josic, Federica Florenzano, Paolo Baldissara, Lorenzo Breschi, Annalisa Mazzoni
PURPOSE: To evaluate the effect of different lithium-disilicate (LiSi) glass-ceramic surface decontamination procedures on the shear bond strength (SBS) to resin cement. MATERIALS AND METHODS: Seventy CAD/CAM LiSi ceramic specimens (IPS e.max CAD, Ivoclar) were cut and sintered. Fifty specimens were treated with 5% hydrofluoric acid (HF) for 20 s, while 20 were left untreated. All 70 specimens were then contaminated with human saliva and try-in silicone paste. The following surface cleaning methods were investigated (n = 10): C: water rinsing (control); PA: 37% H3PO4 etching for 20 s; E: 70% ethanol applied for 20 s; CP: cleaning paste (Ivoclean, Ivoclar) brushed for 20 s; HFSEP: self-etching ceramic primer (Monobond Etch&Prime, Ivoclar) rubbed for 20 s; HF: 5% HF applied for 20 s or no HF etching prior to contamination; SEP: self-etching ceramic primer rubbed for 20 s and no HF etching prior to contamination...
January 15, 2024: Journal of Adhesive Dentistry
https://read.qxmd.com/read/38238273/bond-strength-of-two-resin-cements-with-leucite-reinforced-ceramic-using-different-bonding-agents
#5
JOURNAL ARTICLE
Natsuko Aida, Kiyono Koi, Silvia Patricia Amaya-Pajares, Masahiro Furusawa, Hidehiko Watanabe
AIM: To compare the bond strength of two resin cements to leucite-reinforced ceramics using three different boding agents and evaluate the compatibility of bonding agents. MATERIALS AND METHODS: Twenty extracted sound human molars were sectioned horizontally 2-3 mm above the cementoenamel junction (CEJ). CAD/CAM ceramic blocks for inLab were also sectioned to create 4 mm thick and bonded to the dentin. The adhesive groups assigned were divided into four adhesive groups: Group I: Variolink II dual-cure resin cement and Scotchbond Multi-Purpose Plus adhesive, group II: Multilink Automix dual-cure resin cement and Multilink primers, group III: Multilink Automix and Clearfil SE bond 2 (CSE2) adhesive, group IV: Multilink Automix and CSE2 with light curing after adhesive application...
November 1, 2023: Journal of Contemporary Dental Practice
https://read.qxmd.com/read/38233189/repair-bond-strength-of-a-new-self-adhesive-composite-resin-to-three-different-resin-matrix-ceramic-cad-cam-materials
#6
JOURNAL ARTICLE
Hande Kemaloglu, Ozge Cay, Elif Ercan Devrimci, Tijen Pamir
This study aimed to evaluate the shear bond strength of two flowable composite resins to resin-matrix ceramic CAD-CAM materials.Fifty-four plates obtained from Lava Ultimate (LU), Cerasmart (CS), and Vita Enamic (VE) CAD-CAM blocks were assigned to nine groups: N0: Nova Compo SF (NCSF), N1: Silane/Single Bond Universal (SBU)/NCSF, N2: SBU/NCSF, N3: Silane/G-Premio Bond (GPB)/NCSF, N4: GPB/NCSF, G1: Silane/SBU/G-aenial Universal Injectable Composite (GUIC), G2: SBU/GUIC, G3: Silane/GPB/GUIC, G4: GPB/GUIC. After the repair procedures, shear bond strength values were analyzed...
January 17, 2024: Dental Materials Journal
https://read.qxmd.com/read/38203856/adhesive-performance-of-resin-cement-to-glass-ceramic-and-polymer-based-ceramic-cad-cam-materials-after-applying-self-etching-ceramic-primer-or-different-surface-treatments
#7
JOURNAL ARTICLE
Rana Turunç Oğuzman, Soner Şişmanoğlu
Ensuring optimum bond strength during cementation is vital for restoration success, with the practicality of the process being crucial in clinical practice. This study analyzed the effect of a single-step self-etching ceramic primer (MEP) and various surface treatments on the microshear bond strength (µSBS) between resin cement and glass-ceramic or polymer-based ceramic CAD/CAM materials. Specimens were fabricated from leucite-based glass-ceramic (LEU), lithium disilicate glass-ceramic (LDC), resin nanoceramic (RNC), and polymer infiltrated ceramic network (PICN) ( n = 160)...
December 19, 2023: Materials
https://read.qxmd.com/read/38182455/effect-of-surface-finish-and-resin-cement-on-the-bond-strength-to-cad-cam-ceramics-for-interim-resin-bonded-prostheses
#8
JOURNAL ARTICLE
Zaid Badr, Manal Hamdan, Shengtong Han, Taiseer Sulaiman
STATEMENT OF PROBLEM: Resin-bonded prostheses, including interim resin-bonded prostheses, are effective in preserving tooth structure compared with other types of fixed dental prostheses for the replacement of missing teeth. However, loss of retention remains a notable concern with these types of prostheses. PURPOSE: The purpose of this in vitro study was to investigate the influence of glass-ceramic type, resin type, and surface finish on the shear bond strength (SBS) to the CAD-CAM ceramics used to fabricate interim resin-bonded prostheses...
January 4, 2024: Journal of Prosthetic Dentistry
https://read.qxmd.com/read/38158209/shear-bond-strength-of-simulated-single-retainer-resin-bonded-bridges-made-of-four-cad-cam-materials-for-maxillary-lateral-incisor-agenesis-rehabilitation
#9
JOURNAL ARTICLE
Maria João Calheiros-Lobo, João Mário Calheiros-Lobo, Ricardo Carbas, Lucas F M da Silva, Teresa Pinho
OBJECTIVES:  Maxillary lateral incisor agenesis (MLIA), treated orthodontically by space opening, requires complimentary aesthetic rehabilitation. Resin-bonded bridges (RBBs) can be equated as interim rehabilitation until skeletal maturity is achieved to place an implant-supported crown or as definitive rehabilitation in case of financial restrictions or implant contraindications. Scientific evidence of the best material must be confirmed in specific clinical situations. Computer-aided design and computer-aided manufacturing (CAD/CAM) materials are promising versatile restorative options...
December 29, 2023: European Journal of Dentistry
https://read.qxmd.com/read/38134584/development-of-zirconia-based-polymer-infiltrated-ceramic-network-for-dental-restorative-material
#10
JOURNAL ARTICLE
Soshi Ikemoto, Yuki Nagamatsu, Chihiro Masaki, Ryuji Hosokawa, Hiroshi Ikeda
Polymer-infiltrated ceramic network (PICN) materials have gained considerable attention as tooth restorative materials owing to their mechanical compatibility with human teeth. However, the mechanical strength of contemporary PICN materials is lower than those of conventional resin composites and ceramics. This study aims to develop novel high-strength PICN for use as a dental restorative material. Zirconia-based PICN (EXP) was fabricated using 3 mol% yttria tetragonal polycrystalline zirconia powder and resin monomers via slip casting, followed by sintering and polymer infiltration...
February 2024: Journal of the Mechanical Behavior of Biomedical Materials
https://read.qxmd.com/read/38133889/how-to-bond-to-current-cad-cam-ceramics
#11
JOURNAL ARTICLE
Markus B Blatz, Amirah Alammar, Francisco Rojas, Julian Conejo
The clinical quality and longevity of increasingly popular resin-bonded CAD/CAM ceramic restorations depends greatly on the strength and durability of the resin-ceramic bond. With a diverse array of ceramic materials available, the choice of ceramic bonding protocol is highly influenced by the specific ceramic's type and composition. Typically, this protocol encompasses a surface pretreatment step followed by the application of a priming agent. This article provides a comprehensive update on current resin-bonding protocols for the most commonly used CAD/CAM ceramics...
2023: Compendium of Continuing Education in Dentistry
https://read.qxmd.com/read/38115183/tensile-bond-strength-of-cad-cam-all-ceramic-crowns-before-and-after-thermomechanical-aging
#12
JOURNAL ARTICLE
Chan-Ho Park, Kyung-Ho Ko, Yoon-Hyuk Huh, Chan-Jin Park, Lee-Ra Cho
PURPOSE: The purpose of this in vitro study was to compare the tensile bond strength (TBS) of resin nanoceramics (RNC), zirconia, and lithium disilicate (LS2) restorations cemented to titanium abutments before and after thermomechanical aging. MATERIALS AND METHODS: Twelve specimens per group were fabricated to determine the TBS between a titanium abutment and 4 types of crown materials (2 RNCs, LS2, and translucent zirconia crowns for the maxillary molar). After milling, the abutments and crowns were cemented with resin cement after air-particle abrasion...
December 19, 2023: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://read.qxmd.com/read/38053146/evaluation-of-the-marginal-adaptation-and-debonding-strength-of-two-types-of-cad-cam-implant-supported-cement-retained-crowns
#13
JOURNAL ARTICLE
Nada Ahmed Ramzy, Amir Shoukry Azer, Mohamed Moataz Khamis
BACKGROUND: In-vitro data from a clinically well-known lithium disilicate ceramic reference was used to assess the expected performance of resin-based materials in implant dentistry. The purpose of the study was to compare the bond strength and marginal adaptation of nano-ceramic hybrid composite crowns cemented to stock cement-retained abutments to lithium disilicate crowns. METHODS: Twenty abutment analogs were embedded into auto-polymerizing acrylic resin blocks...
December 5, 2023: BMC Oral Health
https://read.qxmd.com/read/37999018/mechanical-behavior-of-repaired-monolithic-crowns-a-3d-finite-element-analysis
#14
JOURNAL ARTICLE
Pablo Machado Soares, Lucas Saldanha da Rosa, Gabriel Kalil Rocha Pereira, Luiz Felipe Valandro, Marilia Pivetta Rippe, Amanda Maria de Oliveira Dal Piva, Albert J Feilzer, Cornelis J Kleverlaan, João Paulo Mendes Tribst
This study evaluated the mechanical behavior and risk of failure of three CAD-CAM crowns repaired with different resin composites through a three-dimensional (3D) finite element analysis. Three-dimensional models of different cusp-repaired (conventional nanohybrid, bulk-fill, and flowable resin composites) crowns made of zirconia, lithium disilicate, and CAD-CAM resin composite were designed, fixed at the cervical level, and loaded in 100 N at the working cusps, including the repaired one. The models were analyzed to determine the Maximum Principal and Maximum Shear stresses (MPa)...
October 31, 2023: Dentistry Journal
https://read.qxmd.com/read/37975313/adhesive-performance-assessment-of-universal-adhesives-and-universal-adhesive-composite-cement-combinations
#15
JOURNAL ARTICLE
Chuliang Tang, Ben Mercelis, Mohammed H Ahmed, Kumiko Yoshihara, Marleen Peumans, Bart Van Meerbeek
PURPOSE: To investigate the bonding performance of three universal adhesives (UAs) to dentin and the effect of different curing modes and hydrofluoric-acid (HF) etching of lithium-disilicate glass-ceramic on the adhesive performance of two UA/composite cement (CC) combinations. MATERIALS AND METHODS: In the first project part, the immediate and aged (25k and 50k thermocycles) microtensile bond strength (µTBS) of the two light-curing UAs G2-Bond Universal (G2B; GC) and Scotchbond Universal Plus (SBUp; 3M Oral Care), and the self-curing UA Tokuyama Universal Bond II (TUBII; Tokuyama) to flat dentin was measured, when applied in both E&R and SE bonding mode using a split-tooth design (n = 10)...
November 2, 2023: Journal of Adhesive Dentistry
https://read.qxmd.com/read/37929218/the-effects-of-er-cr-ysgg-laser-on-shear-bond-strength-of-orthodontic-lingual-brackets-to-cad-cam-ceramic-systems
#16
JOURNAL ARTICLE
Emine Kaygisiz, Ferhan Egilmez, Gulfem Ergun, Sema Yuksel, Isil Cekic Nagas
PURPOSE: The aim of this study is to compare the bond strength of lingual brackets bonded to resin-matrix and lithium disilicate based-ceramic crowns following various surface treatments. MATERIALS AND METHODS: Sixty ceramic crowns (IPS Emax and Cerasmart) were fabricated by CAD/CAM. Er,Cr:YSGG laser, sandblasting with aluminium oxide and hydrofluoric acid treatment effects on ceramics was tested (n=10/group). A light-cure orthodontic adhesive was used to bond lingual brackets to the ceramic surfaces...
September 6, 2023: European Oral Research
https://read.qxmd.com/read/37881675/the-effect-of-ceramic-surface-conditioning-on-bond-strength-of-metallic-brackets-an-in-vitro-study
#17
JOURNAL ARTICLE
Rita Ferreira, Pedro Mariano Pereira, Ricardo Pitschieller, Luis Proença, Iman Bugaighis
OBJECTIVE: To compare the shear bond strength (SBS) of brackets bonded to three different types of ceramic surfaces (feldspathic ceramic, lithium disilicate ceramic, and zirconia), conditioned with either hydrofluoric acid or sandblasting, using Assure® Plus All bonding agent. MATERIALS AND METHODS: A total of 72 monolithic CAD/CAM ceramic specimens were divided into six groups of 12 samples. Three groups (G1: feldspathic ceramic, G3: lithium disilicate ceramic, G5: zirconia surfaces) were conditioned with 9...
2023: Journal of Orthodontic Science
https://read.qxmd.com/read/37875871/retention-of-hybrid-abutment-crowns-with-offset-implant-placement-influence-of-crown-materials-and-ti-base-height
#18
JOURNAL ARTICLE
Ahmed Alseddiek, Walid Alzordok, Ahmed Attia
BACKGROUND: The purpose of the current study was to assess the impact of three esthetic CAD/CAM material, titanium base height and their interaction on the retention strength of a hybrid-abutment-crown. METHODS: A total of 42 hybrid-abutment crowns with identical external geometries were designed in CAD software to fit two different Ti-Base abutment heights (n = 42/abutment height): either short (S) with 4 mm (n = 21) or long (L) 7 mm (n = 21) height...
October 24, 2023: BMC Oral Health
https://read.qxmd.com/read/37824123/recycling-cad-cam-lithium-disilicate-ceramic-effect-of-surface-treatment-and-aging-on-the-bond-strength-to-resin-cement
#19
JOURNAL ARTICLE
Larissa Mendonça de Miranda, Aparecida Tharlla Leite Caldas, Dayanne Monielle Duarte Moura, Karina Barbosa Souza, Isauremi Vieira de Assunção, Mutlu Özcan, Rodrigo Othávio de Assunção E Souza
PURPOSE: To investigate the effect of recycling of lithium disilicate (LD), surface treatment and thermocycling (TC) on the bond strength (SBS) to resin cement. MATERIALS AND METHODS: Blocks of LD were made according to the recycling cycle, with 24 blocks for each strategy: Control-conventional sintering; 1R (1 recycling cycle) and 3R (3 recycling cycles). For the recycling groups, blocks were waxed (10x10x3mm), mounted in a silicone ring, poured with investment material, and then residues of sintered LD blocks were pressed by the lost wax technique...
October 12, 2023: International Journal of Prosthodontics
https://read.qxmd.com/read/37817793/clinical-outcome-of-cad-cam-overlays-of-mih-affected-young-permanent-molars
#20
JOURNAL ARTICLE
Alaa M Eldehna, Ayat G Montaser, Shaimaa A ALrafee, Asmaa Abdelgawad
BACKGROUND: Restoration of first permanent molars with MIH is considered a challenge for dentists because the enamel has less flexibility and hardness with increased porosity and organic content. MATERIALS AND METHODS: The current study was a randomized control trial in which fifty-two first permanent molars were distributed equally into two groups (Z) teeth that received zirconia overlays and (EC) teeth that received IPS e.max CAD overlays. Clinical assessments were carried out at baseline, 6, and 12 months using modified FDI World Dental Federation criteria...
September 2023: Saudi Dental Journal
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