1
|
Lin J, Cai P, Zhuo Y, Lin L, Zheng Z. Effect of abutment design on fracture resistance of resin-matrix ceramic crowns for dental implant restoration: an in vitro study. BMC Oral Health 2023; 23:410. [PMID: 37344826 DOI: 10.1186/s12903-023-03100-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 06/01/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND The purpose of this study is to investigate the performance and fracture resistance of different resin-matrix ceramic materials for use in implant-supported single crowns with respect to the abutment design (crown thickness: 1 mm, 2 and 3 mm). METHODS Forty-eight abutments and crowns were fabricated on implants in the right lower first molar. Two resin-matrix ceramic materials for dental crowns were selected for study: (1) a glass-ceramic in a resin interpenetrating matrix (Vita Enamic, Vita, Germany) and (2) a resin-based composite with nanoparticle ceramic filler (Lava Ultimate, 3 M ESPE, USA). Three types of abutments were designed: 1 mm thick crown + custom titanium abutment, 2 mm thick crown + custom titanium abutment and 3 mm thick crown + prefabricated titanium abutment. The experiment was divided into 6 groups (n = 8) according to the crown materials and abutment designs. After 10,000 thermocycles, fracture resistance was measured using a universal testing machine. The statistical significance of differences between various groups were analysed with ANOVA followed by a post hoc Tukey's honestly significant difference test. The surfaces of the fractured specimens were examined with scanning electron microscopy (SEM). RESULTS Two-way ANOVA revealed that the abutment design (F = 28.44, P = 1.52 × 10- 8<0.001) and the crown materials (F = 4.37, P = 0.043 < 0.05) had a significant effect on the fracture resistance of implant crown restoration. The Lava Ultimate-2 mm group showed the highest fracture resistance of 2222.74 ± 320.36 N, and the Vita Enamic-3 mm group showed the lowest fracture resistance of 1204.96 ± 130.50 N. Most of the 1 and 2 mm groups had partial crown fractures that could be repaired directly with resin, while the 3 mm group had longitudinal fracture of the crown, and the crowns were detached from the abutments. CONCLUSION Based on the in vitro data of this study, the fracture resistance of the 2 mm thick resin-matrix ceramic crown design was higher than that of the 1 and 3 mm groups. The 2 mm thick resin-matrix ceramic crown and personalized abutment are an option to replace zirconia for implant crown restoration.
Collapse
Affiliation(s)
- Jie Lin
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, 246 Yangqiao Zhong Road, 350002, Fuzhou, Fujian, PR China
- Department of Crown and Bridge, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, 102-8159, Tokyo, Japan
- School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, 102-8159, Tokyo, Japan
| | - Pingping Cai
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, 246 Yangqiao Zhong Road, 350002, Fuzhou, Fujian, PR China
| | - Yingying Zhuo
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, 246 Yangqiao Zhong Road, 350002, Fuzhou, Fujian, PR China
| | - Ling Lin
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, 246 Yangqiao Zhong Road, 350002, Fuzhou, Fujian, PR China
| | - Zhiqiang Zheng
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, 246 Yangqiao Zhong Road, 350002, Fuzhou, Fujian, PR China.
| |
Collapse
|
2
|
Rizzatto LV, Meneghetti D, Di Domênico M, Facenda JC, Weber KR, Corazza PH, Borba M. Effect of the type of resin cement on the fracture resistance of chairside CAD-CAM materials after aging. J Adv Prosthodont 2023; 15:136-144. [PMID: 37441719 PMCID: PMC10333098 DOI: 10.4047/jap.2023.15.3.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/05/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
PURPOSE The study objective was to evaluate the influence of the type of resin cement on the flexural strength and load to fracture of two chairside CAD-CAM materials after aging. MATERIALS AND METHODS A polymer-infiltrated ceramic network (PICN) and a nanoceramic resin (RNC) were used to produce the specimens. Two types of dual-cure resin cements, a self-adhesive and a universal, were investigated. Bilayer specimens were produced (n = 10) and aged for 6 months in a humid environment before the biaxial flexural strength test (σf). Bonded specimens were subjected to a mechanical aging protocol (50 N, 2 Hz, 37℃ water, 500,000 cycles) before the compressive load test (Lf). σf and Lf data were analyzed using two-way ANOVA and Tukey tests (α = .05). Chi-square test was used to analyze the relationship between failure mode and experimental group (α = .05). RESULTS The type of resin cement and the interaction between factors had no effect on the σf and Lf of the specimens, while the type of restorative material was significant. RNC had higher σf and Lf than PICN. There was a significant association among the type of cracks identified for specimens tested in Lf and the restorative material. CONCLUSION The type of resin cement had no effect on the flexural strength and load to fracture of the two investigated CAD-CAM chairside materials after aging.
Collapse
Affiliation(s)
| | - Daniel Meneghetti
- School of Dentistry, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Marielle Di Domênico
- Graduate Program in Dentistry, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Júlia Cadorin Facenda
- Graduate Program in Dentistry, University of Passo Fundo, Passo Fundo, RS, Brazil
- Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Katia Raquel Weber
- Graduate Program in Dentistry, University of Passo Fundo, Passo Fundo, RS, Brazil
- Department of Dentistry, School of Health Sciences, Positivo University, Curitiba, PR, Brazil
| | | | - Márcia Borba
- Graduate Program in Dentistry, University of Passo Fundo, Passo Fundo, RS, Brazil
| |
Collapse
|
3
|
Donmez MB, Çakmak G, Yılmaz D, Schimmel M, Abou-Ayash S, Yilmaz B, Peutzfeldt A. Bond strength of additively manufactured composite resins to dentin and titanium when bonded with dual-polymerizing resin cements. J Prosthet Dent 2023:S0022-3913(23)00255-X. [PMID: 37183123 DOI: 10.1016/j.prosdent.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 04/06/2023] [Accepted: 04/06/2023] [Indexed: 05/16/2023]
Abstract
STATEMENT OF PROBLEM Additively manufactured composite resins for definitive restorations have been recently introduced. The bond strength between these composite resins and different substrates has not been extensively studied. PURPOSE The purpose of this in vitro study was to measure the shear bond strength (SBS) between additively manufactured composite resins and dentin and titanium substrates and compare those with the SBS between subtractively manufactured polymer-infiltrated ceramic and the same substrates (dentin and titanium), when different dual-polymerizing resin cements were used. MATERIAL AND METHODS One hundred and eighty cylinder-shaped specimens (Ø5×5 mm) were prepared from 3 materials recommended for definitive restorations: an additively manufactured composite resin (Crowntec [CT]); an additively manufactured hybrid composite resin (VarseoSmile Crown Plus [VS]); and a subtractively manufactured polymer-infiltrated ceramic (Enamic [EN]) (n=60). Specimens were randomly divided into six subgroups to be cemented to the two substrates (dentin and titanium; n=30) with 1 of 3 resin cements (RelyX Universal, Panavia V5, and Variolink Esthetic DC) (n=10). The restoration surface to be bonded was treated according to the respective manufacturer's recommendations. Dentin surfaces were treated according to the resin cement (Scotchbond Universal Plus Adhesive for RelyX Universal, Panavia V5 Tooth Primer for Panavia V5, and Adhese Universal for Variolink Esthetic DC), while titanium surfaces were airborne-particle abraded, and only the specimens paired with Panavia V5 were treated with a ceramic primer (Clearfil Ceramic Primer Plus). SBS was measured in a universal testing machine at a crosshead speed of 1 mm/min. Failure modes were analyzed under a microscope at ×12 magnification. Data were analyzed by using 2-way analysis of variance and Tukey honestly significant difference tests (α=.05). RESULTS When SBS to dentin was considered, only restorative material, as a main factor, had a significant effect (P<.001); EN had the highest SBS (P<.001), while the difference in SBS values of CT and VS was not significant (P=.145). As for SBS to titanium, the factors restorative material and resin cement and their interaction had a significant effect (P<.001). Within each resin cement, EN had the highest SBS to titanium (P<.001), and within each restorative material, Variolink resulted in the lowest SBS (P≤.010). Overall, EN and RelyX were associated with the highest SBS to titanium (P≤.013). Mixed failures were predominant in most groups. CONCLUSIONS Regardless of the substrate or the resin cement used, the subtractively manufactured polymer-infiltrated ceramic had higher shear bond strength than the additively manufactured composite resins. The SBS of the additively manufactured composite resins, whether bonded to dentin or titanium, were not significantly different from each other. Regardless of the restorative material, Variolink DC resulted in the lowest SBS for titanium surfaces.
Collapse
Affiliation(s)
- Mustafa Borga Donmez
- Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Istinye University, İstanbul, Turkey; and Visiting Researcher, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.
| | - Gülce Çakmak
- Senior Resarch Associate, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Deniz Yılmaz
- Lecturer, Department of Prosthodontics, Faculty of Dentistry, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Martin Schimmel
- Professor and Head, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; and External Research Associate, Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Samir Abou-Ayash
- Senior Lecturer and Head of the Section of Digital Implant and Reconstructive Dentistry, Department of Reconstructive Dentistry and Gerodontology, University of Bern, Bern, Switzerland
| | - Burak Yilmaz
- Associate Professor, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Associate Professor, Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland; and Adjunct Professor, Division of Restorative and Prosthetic Dentistry, The Ohio State University, Columbus, Ohio
| | - Anne Peutzfeldt
- Senior Researcher, Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland; and Affiliate Professor, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
4
|
Jiang J, Sun J, Ma H, Wang J, Huang Z, Zhou S. Stress intensity factor of a cracked molar restored with different materials and designs: A 3D-FEA. J Mech Behav Biomed Mater 2023; 142:105818. [PMID: 37068432 DOI: 10.1016/j.jmbbm.2023.105818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/26/2023] [Accepted: 03/30/2023] [Indexed: 04/03/2023]
Abstract
OBJECTIVE This work used 3D finite element analysis (FEA) to analyze and directly compare the stress intensity factor (SIF) and stress distribution at the crack tip of identical cracked tooth models restored with different materials and crown parameters. METHODS A 3D model of the cracked tooth was generated. Then, we applied 25 restorative models, including three parameters (shoulder height, width, and degree of polymerization), five restorative materials (GC, IPS, LU, ZC, VE), and two combinations of types of cement (RMGIC and GIC). An occlusal load of 800N was applied to the spherical part along the longitudinal axis. The stress distribution of the preparation and the SIF of the crack tip was analyzed. RESULTS The crack tip SIF was minimal for a shoulder height offset of 0.8 mm (P = 0.032), a shoulder width of 0.6 mm (P = 0.045), a crown material of ZC (P < 2e-16), and a cement material of RMGIC (P < 0.05), respectively. In contrast, the effect of different polymerization degrees on SIF was insignificant (P = 0.95). CONCLUSION Our results suggest that the selection of a larger modulus of elasticity (MOE) material for the crown, the preparation of a smaller shoulder width within a safe range, a reasonable increase in the crown length, and the selection of adhesive materials with high fracture toughness are favorable methods to prevent further crack extension.
Collapse
Affiliation(s)
- Jingang Jiang
- Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, Heilongjiang, PR China; Robotics & Its Engineering Research Center, Harbin University of Science and Technology, Harbin, 150080, China.
| | - Jianpeng Sun
- Robotics & Its Engineering Research Center, Harbin University of Science and Technology, Harbin, 150080, China
| | - Hongyuan Ma
- Harbin Branch of Taili Communication Technology Limited, China Electronics Technology Group Corporation, Harbin, 150080, Heilongjiang, People's Republic of China
| | - Jingchao Wang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, PR China
| | - Zhiyuan Huang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, PR China
| | - Shan Zhou
- The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, PR China.
| |
Collapse
|
5
|
NAİBOĞLU P, SERİN KALAY T, AYDOĞAN AYAZ E. HASTABAŞI CAD-CAM BLOKLARIN EROZE DENTİNE MAKASLAMA BAĞLANMA DAYANIMI. CUMHURIYET DENTAL JOURNAL 2022. [DOI: 10.7126/cumudj.1094553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Amaç: Bu çalışmada hastabaşı bilgisayar destekli tasarım-bilgisayar destekli üretim (CAD-CAM) bloklarının self-etch ve self-adeziv rezin simanlar kullanılarak gastrik erozyona uğratılmış dentine olan makaslama bağlanma dayanımlarının değerlendirilmesi amaçlanmıştır.
Gereç ve Yöntemler: Yüz seksen dentin örneği sağlam dentin ve eroze dentin olmak üzere iki gruba ayrılmıştır. Eroze dentin grubunda örnekler HCI (0,01 M, pH 2, 2 dk) ile erozyona uğratılmış ve 60 dk yapay tükrükte bekletilmiş, sonrasında, elektrikli diş fırçası kullanılarak (2N, 15 s) fırçalanmıştır. Bu döngü üç kere tekrar edilmiştir. Lava Ultimate (LU), Vita Enamic (VE) ve Vita Suprinity (VS) CAD-CAM blokları (3x3x3 mm3, n=15/grup) self-etch Multilink N (MN) ve self-adeziv RelyX U200 Automix (RU) rezin simanları kullanılarak sağlam ve eroze dentin örneklerine simante edilmiştir. Makaslama bağlanma dayanımı 24 saat sonra ölçülmüştür. Başarısızlık tipi stereomikroskop kullanılarak değerlendirilmiştir. Veriler üç-yönlü ANOVA ve Bonferroni düzeltmesi kullanılarak analiz edilmiştir (p˂0,05).
Bulgular: Makaslama bağlanma dayanımı ana faktörlerden önemli ölçüde etkilenmiştir: diş yapısı (p=0,011), rezin simanlar (p˂0,001) ve CAD-CAM bloklar (p=0,001). LU sağlam dentine RU ile simante edildiğinde, eroze dentinle karşılaştırıldığında daha yüksek bağlanma dayanımı elde edilmiştir (p=0,001). MN kullanıldığında, RU’dan daha yüksek bağlanma dayanımı değerleri elde edilmiştir (p
Collapse
|
6
|
Dimensional changes of CAD/CAM polymer crowns after water aging – An in vitro experiment. J Mech Behav Biomed Mater 2022; 128:105109. [DOI: 10.1016/j.jmbbm.2022.105109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/23/2022] [Accepted: 01/29/2022] [Indexed: 11/18/2022]
|
7
|
Alegría-Acevedo LF, Gutiérrez MF, Perdigão J, Núñez A, Méndez-Bauer L, Dávila-Sanchez A, Reis A, Loguercio AD. In Vitro Performance of Different Universal Adhesive Systems on Several CAD/CAM Restorative Materials After Thermal Aging. Oper Dent 2022; 47:107-120. [PMID: 35226751 DOI: 10.2341/20-203-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To evaluate the microshear bond strength (mSBS) of 10 universal adhesive systems applied on five different CAD/CAM restorative materials, immediately and after thermal aging. METHODS AND MATERIALS Five CAD/CAM materials were selected: 1) feldspathic glass ceramic (FeCe); 2) pre-polymerized reinforced resin composite (ReRC); 3) leucite-reinforced glass ceramic (LeGC); 4) lithium disilicate (LiDi); and 5) yttrium-stabilized zirconium dioxide (ZiDi). For each material, 15 blocks were cut into four rectangular sections (6 × 6 × 6 mm; n=60 per group) and processed as recommended by the respective manufacturer. For each indirect material, the following adhesive systems were applied according to the respective manufacturer's instructions: 1) AdheSE Universal [ADU]; 2) All-Bond Universal [ABU]; 3) Ambar Universal [AMB]; 4) Clearfil Universal Bond [CFU]; 5) Futurabond U [FBU]; 6) One Coat 7 Universal [OCU]; 7) Peak Universal Bond [PUB]; 8) Prime&Bond Elect [PBE]; 9) Scotchbond Universal Adhesive [SBU]; 10) Xeno Select [XEN, negative control]. After the application of the adhesive system, cylinder-shaped transparent matrices were filled with a dual-curing resin cement (NX3) and light cured. Specimens were tested in shear mode at 1.0 mm/ min (mSBS), after 24 hours and 10,000 thermal cycles (TC). All data were submitted to statistical analysis (α=0.05). RESULTS For FeCe, there was no significant decrease in mean mSBS for AMB, FBU, and SBU after TC when compared at 24 hours. For ReRC, AMB and SBU showed higher mean mSBS when compared to CFU and XEN, after 24 hours and TC. For LiDi, FBU and OCU showed higher mean mSBS when compared to CFU and XEN, after 24 hours and TC. For LeGC, AMB and PUB showed higher mean mSBS when compared to XEN, after 24 hours and TC. For ZiDi, OCU and SBU showed higher mean mSBS when compared to XEN, after 24 hours and TC. In addition, PBE and XEN showed the lowest mean mSBS after TC with higher percentage of bond strength reduction. CONCLUSIONS The mean mSBS among the different universal adhesives varied widely for each CAD/ CAM material used. In addition, most universal adhesives underwent a statistically significant bond strength reduction after TC.
Collapse
Affiliation(s)
- L F Alegría-Acevedo
- Luisa F Alegria-Acevedo, DDS, MS, PhD, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Brazil
| | - M F Gutiérrez
- Mario Felipe Gutiérrez, DDS, MS, PhD, professor, Universidad de los Andes, Facultad de Odontología, Santiago, Chile, and University of Chile, Faculty of Dentistry, Institute for Research in Dental Sciences, Santiago, Chile
| | - J Perdigão
- *Jorge Perdigão, DMD, MS, PhD, University of Minnesota, Department of Restorative Sciences, Minneapolis, MN, USA, and Universidade Católica Portuguesa, Faculty of Dental Medicine, Centre for Interdisciplinary Research in Health, Viseu, Portugal
| | - A Núñez
- Alejandra Núñez, DDS, MS, PhD student, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Brazil, and Universidad San Francisco de Quito USFQ, Department of Restorative Dentistry and Dental Materials, School of Dentistry, Quito, Ecuador
| | - L Méndez-Bauer
- Luján Méndez-Bauer, DDS, PhD, professor, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Brazil, and Universidad Francisco Marroquín, Faculty of Dentistry, Department of Research, Cidad de Guatemala, Guatemala
| | - A Dávila-Sanchez
- Andrés Dávila-Sanchez, DDS, Ms, PhD, professor, Universidad San Francisco de Quito USFQ, Department of Restorative Dentistry and Dental Materials, School of Dentistry, Quito, Ecuador
| | - A Reis
- Alessandra Reis, DDS, PhD, professor, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Brazil
| | - A D Loguercio
- Alessandro D Loguercio, DDS, MS, PhD, professor, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Brazil
| |
Collapse
|
8
|
Almaskin D, Alzaher ZA, Qaw M, Al-Thobity AM, Alshahrani A, Alsalman A, Akhtar S, Shetty AC, Gad MM. The Bond Strength of a Universal Adhesive System with Silane to Lithium Disilicates in Comparison with an Isolated Silane Coupling Agent. J Prosthodont 2021; 31:512-520. [PMID: 34626145 DOI: 10.1111/jopr.13442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2021] [Indexed: 11/29/2022] Open
Abstract
PURPOSE The aim of this in vitro study was to evaluate the effects of different durations of silane coupling agent application compared to a universal adhesive system regarding the shear bond strength of two ceramic materials. MATERIALS AND METHODS A total of 120 human molars were ground to the dentinal coronal third and then fixed into an acrylic resin holder. Lithium disilicate specimens were divided into two main groups according to the ceramic type: computer-aided design/computer-aided manufacturing IPS e.max CAD and heat-pressed Initial LiSi Press GC (dimensions of 4 × 3× 3 mm). Each main group was subdivided into 6 subgroups (n = 10) according to the duration of the silane and universal adhesive system application (20, 60, or 120 seconds) on the ceramic surface before cementation; then, the cementation procedures were performed. All specimens were subjected to 5000 thermal cycles at 5 and 55°C before testing. The shear bond strength was measured using a universal testing machine. ANOVA and Scheffe post hoc test multiple comparisons tests were conducted (α = 0.05). RESULTS The shear bond strength increased as the duration of the silane and universal adhesive system application increased. The highest bond value for each material was found for the silane application at 120 seconds, with a significant difference between 120 and 60, and 20 seconds for both e. max CAD and Initial LiSi materials (p = 0.029 and p ˂ 0.001, respectively). No significant difference was found between 60 and 20 seconds when silane and universal adhesive system were applied for both e. max CAD and Initial LiSi materials (p = 0.169 and p = 0.120, respectively). All groups treated with the silane primer showed significantly higher values than the universal adhesive system for each application time (p ˂ 0.001). CONCLUSION Increasing the duration of the silane coupling agent and universal adhesive system application to 120 seconds on the ceramic surface before cementation improved the shear bond strength of the ceramic-cement interface. Ceramic pretreatment with silane could be an essential step for bonding ceramic to dentin regardless of silane presence in the universal adhesive system.
Collapse
Affiliation(s)
- Danah Almaskin
- Fellowship Program in Prosthodontics, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Zahra A Alzaher
- Fellowship Program in Prosthodontics, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Masoumah Qaw
- Department of Restorative Dental Science, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Ahmad M Al-Thobity
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Abdullah Alshahrani
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Abdulmohsen Alsalman
- Consultant of Prosthodontics, Department of Dentistry, Armed Forced Hospital Dhahran, Dhahran, Saudi Arabia
| | - Sultan Akhtar
- Department of Biophysics, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Ashwin C Shetty
- Department of Dental Education, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mohammed M Gad
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| |
Collapse
|
9
|
Nagasawa Y, Eda Y, Shigeta H, Ferrari M, Nakajima H, Hibino Y. Effect of sandblasting and/or priming treatment on the shear bond strength of self-adhesive resin cement to CAD/CAM blocks. Odontology 2021; 110:70-80. [PMID: 34272634 DOI: 10.1007/s10266-021-00635-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/24/2021] [Indexed: 11/30/2022]
Abstract
The aim of this study was to investigate the effect of two different priming agents and/or sandblasting on the shear bond strength of self-adhesive resin cement to the resin composite for core build-up to CAD/CAM blocks. A CAD/CAM ceramic block (GN I CERAMIC BLOCK, GC) and a CAD/CAM resin composite block (CERASMART 270, GC), a self-adhesive resin cement (G-CEM ONE, GC) and two different primers, i.e., a multipurpose primer (MP; G-Multi Primer, GC) and a ceramic primer (CP; Ceramic Primer II, GC), were examined. Five different surface treatments with priming and/or sandblasting and no surface treatment (control) were performed on the block. Disk specimens (6 mm in diameter and 4 mm in thickness) made from core composites were cemented to the blocks after the surface treatments. Then, the 24-h shear bond strength of the resin cement between the block and the resin composite core was determined (n = 15). Sandblasted specimens had greater bond strength than controls for both blocks (p < 0.05). Priming to both blocks significantly increased the bond strength of resin cement compared to that of controls (p < 0.05). Although Weibull moduli were not significantly changed among all surface treatments for both blocks, the strengths with 5% and 95% failure probability of sandblasted and/or primed blocks were estimated to be greater than those of controls. The combination of priming and sandblasting to the CAD/CAM composite and ceramic surface was effective in increasing the bond strength of the resin cement.
Collapse
Affiliation(s)
- Yuko Nagasawa
- Division of Dental Biomaterials Science, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry, 1-1, Keyakidai, Sakado, Saitama, 350-0283, Japan.
| | - Yoshikazu Eda
- Division of Dental Biomaterials Science, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry, 1-1, Keyakidai, Sakado, Saitama, 350-0283, Japan
| | - Hirotaka Shigeta
- Division of Dental Biomaterials Science, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry, 1-1, Keyakidai, Sakado, Saitama, 350-0283, Japan
| | - Marco Ferrari
- Department of Prosthodontics and Dental Materials, School of Dental Medicine, University of Siena, Viale Mario Bracci, 16, Siena, Italy
| | - Hiroshi Nakajima
- Division of Dental Biomaterials Science, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry, 1-1, Keyakidai, Sakado, Saitama, 350-0283, Japan
| | - Yasushi Hibino
- Division of Dental Biomaterials Science, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry, 1-1, Keyakidai, Sakado, Saitama, 350-0283, Japan
| |
Collapse
|
10
|
Effect of Two Immediate Dentin Sealing Approaches on Bond Strength of Lava™ CAD/CAM Indirect Restoration. MATERIALS 2021; 14:ma14071629. [PMID: 33810529 PMCID: PMC8036871 DOI: 10.3390/ma14071629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/17/2021] [Accepted: 03/23/2021] [Indexed: 11/17/2022]
Abstract
The objective of this work was to compare the micro-tensile bond strength (µTBS) of CAD/CAM (Computer-Aided Design/ Computer-Aided Manufacturing) specimens cemented with different pairing of adhesives and resin-cements using two Immediate Dentin Dealing (IDS) approaches in comparison with Delay Dentin Sealing (DDS). Coronal dentin from 108 molars were divided into nine groups (n = 12) depending on the adhesive/resin-cement (A-C) assigned. Lava™ Ultimate (4 × 10 × 10 mm) was cemented according to different strategies: IDS1(cementation after dentin sealing), DDS (dentin sealing and cementation at 2-weeks), IDS2 (immediate dentin sealing and cementation at 2-weeks). Samples were sectioned and tested until failure to determine the µTBS. Failure mode was categorized as dentin/cement (DC), at Lava™ Ultimate/cement (LC) and hybrid (H). Kruskal–Wallis and Mann–Whitney U tests and influence of the type of failure on the µTBS by survival analysis with competing risk was explored. Mostly, µTBS values were equal or higher in IDS2 than DDS. In general, A-Cs that showed higher µTBS, have high percentages of LC failure. Survival analysis with competing risk between DC + H and LC values showed that some A-Cs would significantly increase the µTBS values for IDS2. A-Cs with the highest adhesion values showed a high percentage of fractures at the LC interface, suggesting that the adhesion at the adhesive/dentin interface would be higher.
Collapse
|
11
|
Çakmak G, Subaşı MG, Yilmaz B. Effect of thermocycling on the surface properties of resin-matrix CAD-CAM ceramics after different surface treatments. J Mech Behav Biomed Mater 2021; 117:104401. [PMID: 33652235 DOI: 10.1016/j.jmbbm.2021.104401] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/08/2021] [Accepted: 02/11/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE To evaluate the effect of thermocycling on the water contact angle (WCA), surface roughness (SR), and microhardness (MH) of resin-matrix computer-assisted design and computer-assisted manufacturing (CAD-CAM) ceramics after different surface treatments (conventional polishing or 2 different surface sealants). MATERIAL AND METHODS Two different types of resin-matrix CAD-CAM ceramics; a nanoparticle-filled resin (CeraSmart; CS) and a resin nanoceramic (Lava Ultimate; LU) were tested. Rectangular-shaped plates (1 mm-thick) were divided into 3 groups (n = 8) in terms of surface treatment methods applied: conventional polishing (control) or 2 surface sealants (Optiglaze (OG) and Palaseal (PS)). Scanning electron microscope images ( × 1000 and × 700 magnifications) of each material were taken from 2 additional specimens before surface treatments. After surface treatments, WCAs of deionized water, SR, and MH values of specimens were measured. All specimens were subjected to 5000 thermocycling and measurements were repeated. SR, WCA, and MH data before and after thermocycling were compared by using a 2-way ANOVA (α=.05). RESULTS A significant interaction was found between the surface treatment and the material for WCA after thermocycling (P < .001), for SR before thermocycling (P = .014), and for MH both before and after thermocycling (P < .001). SEM images before surface treatments revealed that the surface of CS was mechanically rougher with a more microretentive topography compared with the surface of LU. No significant correlation was found between SR and WCA (P > 0.05). CONCLUSIONS Thermocycling affected the SR, MH, and WCA of all resin-matrix CAD-CAM ceramics.
Collapse
Affiliation(s)
- Gülce Çakmak
- Department of Prosthodontics, Istanbul Okan University Faculty of Dentistry, Istanbul, Turkey and ITI Scholar, Division of Postdoctoral and Research, National Autonomous University of Mexico, Mexico City, Mexico.
| | - Meryem Gülce Subaşı
- Department of Prosthodontics, Kütahya Health Sciences University Faculty of Dentistry, Kütahya, Turkey
| | - Burak Yilmaz
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland; Division of Restorative and Prosthetic Dentistry, The Ohio State University, Ohio, USA
| |
Collapse
|
12
|
Niizuma Y, Kobayashi M, Toyama T, Manabe A. Effect of etching with low concentration hydrofluoric acid on the bond strength of CAD/CAM resin block. Dent Mater J 2020; 39:1000-1008. [PMID: 32684610 DOI: 10.4012/dmj.2018-398] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The effect of etching for 90 s with low concentrations (0.5, 1.0, 2.0, 3.0, 3.5, and 4.0%) of hydrofluoric acid (HF) on the adhesiveness of computer-aided design/computer-aided manufacturing (CAD/CAM) resin blocks [CERASMART (CS), SHOFU BLOCK HC (HC), KATANA AVENCIA Block(KA), and VITA ENAMIC (EN)] was investigated. Energy dispersive spectroscopy revealed that the silicon content of HC, KA, and EN groups remained almost constant with HF etching of ≤4%. HF etching increased the surface roughness of all blocks. The HF concentration resulting in the highest shear bond strength in each group was as follows: CS (2.0%), HC (3.0%), KA (3.5%) and EN (0.5%). Scanning electron microscopy revealed that the bonding interface of etched surfaces differed significantly from that of airborne-particle abrasion surfaces. Thus, low concentration HF etching is effective for surface treatment of CAD/CAM resin blocks. The etching effect and optimum HF concentration differ with the block composition and structure.
Collapse
Affiliation(s)
- Yuiko Niizuma
- Department of Conservative Dentistry, Division of Aesthetic Dentistry and Clinical Cariology, Showa University School of Dentistry
| | - Mikihiro Kobayashi
- Department of Conservative Dentistry, Division of Aesthetic Dentistry and Clinical Cariology, Showa University School of Dentistry
| | - Toshinari Toyama
- Department of Conservative Dentistry, Division of Aesthetic Dentistry and Clinical Cariology, Showa University School of Dentistry
| | - Atsufumi Manabe
- Department of Conservative Dentistry, Division of Aesthetic Dentistry and Clinical Cariology, Showa University School of Dentistry
| |
Collapse
|
13
|
Yano HT, Ikeda H, Nagamatsu Y, Masaki C, Hosokawa R, Shimizu H. Effects of alumina airborne-particle abrasion on the surface properties of CAD/CAM composites and bond strength to resin cement. Dent Mater J 2020; 40:431-438. [PMID: 33208574 DOI: 10.4012/dmj.2020-023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The purpose of this study is to clarify physical and chemical changes in surfaces of CAD/CAM composites caused by alumina airborne-particle abrasion and its effect on adhesive bonding. Our study involved three dispersed filler (DF)-based and a polymer-infiltrated ceramic network (PICN)-based CAD/CAM composites. Changes in the surface morphologies of the composites were examined, and surface free energy (SFE) analysis was performed based on Owens-Wendt theory. The influence of the abrasion on the bond strengths of CAD/CAM composites to the resin cement was characterized by shear bond strength (SBS) test. The abrasion increased the roughness of the composites. The SFE analysis showed that the abrasion significantly increased the dispersive component but decreased the polar component of the SFE associated with the DF-based composites, while no change occurred for those of the PICN-based composite. The abrasion slightly improved the SBSs for the DF-based composites but not that of the PICN-based composite.
Collapse
Affiliation(s)
- Haruka Takesue Yano
- Division of Oral Reconstruction and Rehabilitation, Department of Oral Functions, Kyushu Dental University.,Division of Biomaterials, Department of Oral Functions, Kyushu Dental University
| | - Hiroshi Ikeda
- Division of Biomaterials, Department of Oral Functions, Kyushu Dental University
| | - Yuki Nagamatsu
- Division of Biomaterials, Department of Oral Functions, Kyushu Dental University
| | - Chihiro Masaki
- Division of Oral Reconstruction and Rehabilitation, Department of Oral Functions, Kyushu Dental University
| | - Ryuji Hosokawa
- Division of Oral Reconstruction and Rehabilitation, Department of Oral Functions, Kyushu Dental University
| | - Hiroshi Shimizu
- Division of Biomaterials, Department of Oral Functions, Kyushu Dental University
| |
Collapse
|
14
|
Nagasawa Y, Hibino Y, Eda Y, Nakajima H. Effect of surface treatment of CAD/CAM resin composites on the shear bond strength of self-adhesive resin cement. Dent Mater J 2020; 40:364-378. [PMID: 33100298 DOI: 10.4012/dmj.2019-431] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study examined the effects of sandblasting, hydrofluoric acid etching and priming on the shear bond strength of self-adhesive resin cement between seven different CAD/CAM resin composites and a resin composite core material at 24-h after cement mixing. Five surface treatments [control (C), sandblasting (S), priming (P), sandblasting with priming (SP), and 9% HF etching with priming (HFP)] were performed respectively for disc specimens of CAD/CAM blocks. There were no significant differences in bond strength among the C, S, and P, except for one block (p>0.05). SP showed a greater bond strength than S. Weibull moduli were not changed significantly among all treatments for all blocks, whereas the strengths with 5% and 95% failure probability of SP and HFP showed greater values than the others. The bond strengths of HFP were comparable to those of SP. Priming after sandblasting or HF etching could be effective to increase the bond strength of CAD/CAM blocks.
Collapse
Affiliation(s)
- Yuko Nagasawa
- Division of Dental Biomaterials Science, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry
| | - Yasushi Hibino
- Division of Dental Biomaterials Science, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry
| | - Yoshikazu Eda
- Division of Dental Biomaterials Science, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry
| | - Hiroshi Nakajima
- Division of Dental Biomaterials Science, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry
| |
Collapse
|
15
|
Veríssimo AH, Duarte Moura DM, de Oliveira Dal Piva AM, Bottino MA, de Fátima Dantas de Almeida L, da Fonte Porto Carreiro A, de Assunção e Souza RO. Effect of different repair methods on the bond strength of resin composite to CAD/CAM materials and microorganisms adhesion: An in situ study. J Dent 2020; 93:103266. [DOI: 10.1016/j.jdent.2019.103266] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 12/06/2019] [Accepted: 12/17/2019] [Indexed: 10/25/2022] Open
|
16
|
Yano HT, Ikeda H, Nagamatsu Y, Masaki C, Hosokawa R, Shimizu H. Correlation between microstructure of CAD/CAM composites and the silanization effect on adhesive bonding. J Mech Behav Biomed Mater 2020; 101:103441. [DOI: 10.1016/j.jmbbm.2019.103441] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 10/26/2022]
|
17
|
Rosentritt M, Krifka S, Strasser T, Preis V. Fracture force of CAD/CAM resin composite crowns after in vitro aging. Clin Oral Investig 2019; 24:2395-2401. [PMID: 31712983 DOI: 10.1007/s00784-019-03099-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 09/26/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The aim of this in vitro study was to investigate the influence of material, preparation, and pre-treatment on the aging and fracture force of CAD/CAM resin composite molar crowns. MATERIALS AND METHODS CAD/CAM molar crowns (n = 80) were milled from four resin composites (Block HC, Shofu; Lava Ultimate, 3 M; Grandio Blocs, Voco; and Tetric CAD, Ivoclar Vivadent, with/without sandblasting). Extracted human teeth were prepared with optimal preparation (height 6-8 mm, angle 6-8°) or worst-case preparation (height 3.5-4 mm, angle 10-15°). Both groups were prepared with a 1-mm deep cervical circular shoulder. Crowns were adhesively bonded after corresponding tooth treatment required for the individual adhesive systems (Table 1). Specimens were aged for 90 days in water storage (37 °C) and subsequently subjected to thermal cycling and mechanical loading (TCML 3000 × 5 °C/3000 × 55 °C, 2 min each cycle, H20 distilled; 1.2 × 106 cycles à 50 N, 1.6 Hz). De-bonding and fracture force was determined. STATISTICS one-way-ANOVA; post hoc Bonferroni, α = 0.05. RESULTS Four crowns of Lava Ultimate with worst-case preparation de-bonded during TCML. Individual crowns without sandblasting treatment (3x Tetric CAD with optimal preparation; 1x Tetric CAD with worst-case preparation) de-bonded during water storage. One crown of Grandio Blocs with optimal preparation showed a small chipping during TCML. All other crowns survived TCML and water storage without failure. Fracture forces differed between 1272 ± 211 N (Lava Ultimate) and 3061 ± 521 N (Tetric CAD). All Grandio Blocs and Tetric CAD crowns revealed significantly (p ≤ 0.023) higher fracture forces than Block HC or Lava Ultimate crowns. No significantly different (p > 0.05) fracture forces were found between optimal or worst-case preparation/fit groups. CONCLUSIONS De-bonding during water storage and TCML was dependent on material and crown pre-treatment. Therefore, surface roughening seems strongly required. Fracture forces were not influenced by preparation but by the type of material. CLINICAL RELEVANCE Clinical success and de-bonding of CAD/CAM resin composite crowns is strongly influenced by the type of material and its pre-treatment.
Collapse
Affiliation(s)
- Martin Rosentritt
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042, Regensburg, Germany.
| | - Stefanie Krifka
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042, Regensburg, Germany
| | - Thomas Strasser
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042, Regensburg, Germany
| | - Verena Preis
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042, Regensburg, Germany
| |
Collapse
|
18
|
Rosentritt M, Preis V, Behr M, Krifka S. In-vitro performance of CAD/CAM crowns with insufficient preparation design. J Mech Behav Biomed Mater 2019; 90:269-274. [DOI: 10.1016/j.jmbbm.2018.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 10/01/2018] [Accepted: 10/01/2018] [Indexed: 11/17/2022]
|
19
|
CAPA N, SAY ECAN, CELEBI C, CASUR A. Microtensile bond strengths of adhesively bonded polymer-based CAD/CAM materials to dentin. Dent Mater J 2019; 38:75-85. [DOI: 10.4012/dmj.2017-442] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Nuray CAPA
- Department of Prosthodontics, Faculty of Dentistry, Yeditepe University
| | - Esra CAN SAY
- Department of Restorative Dentistry, Faculty of Dentistry, Yeditepe University
| | - Cansin CELEBI
- Department of Prosthodontics, Faculty of Dentistry, Yeditepe University
| | - Ayca CASUR
- Department of Prosthodontics, Faculty of Dentistry, Yeditepe University
| |
Collapse
|
20
|
Sadighpour L, Geramipanah F, Ghasri Z, Neshatian M. Microtensile bond strength of CAD/CAM-fabricated polymer-ceramics to different adhesive resin cements. Restor Dent Endod 2018; 43:e40. [PMID: 30483464 PMCID: PMC6237724 DOI: 10.5395/rde.2018.43.e40] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 07/11/2018] [Indexed: 11/26/2022] Open
Abstract
Objectives This study evaluated the microtensile bond strength (µTBS) of polymer-ceramic and indirect composite resin with 3 classes of resin cements. Materials and Methods Two computer-aided design/computer-aided manufacturing (CAD/CAM)-fabricated polymer-ceramics (Enamic [ENA; Vita] and Lava Ultimate [LAV; 3M ESPE]) and a laboratory indirect composite resin (Gradia [GRA; GC Corp.]) were equally divided into 6 groups (n = 18) with 3 classes of resin cements: Variolink N (VAR; Vivadent), RelyX U200 (RXU; 3M ESPE), and Panavia F2 (PAN; Kuraray). The μTBS values were compared between groups by 2-way analysis of variance and the post hoc Tamhane test (α = 0.05). Results Restorative materials and resin cements significantly influenced µTBS (p < 0.05). In the GRA group, the highest μTBS was found with RXU (27.40 ± 5.39 N) and the lowest with VAR (13.54 ± 6.04 N) (p < 0.05). Similar trends were observed in the ENA group. In the LAV group, the highest μTBS was observed with VAR (27.45 ± 5.84 N) and the lowest with PAN (10.67 ± 4.37 N) (p < 0.05). PAN had comparable results to those of ENA and GRA, whereas the μTBS values were significantly lower with LAV (p = 0.001). The highest bond strength of RXU was found with GRA (27.40 ± 5.39 N, p = 0.001). PAN showed the lowest µTBS with LAV (10.67 ± 4.37 N; p < 0.001). Conclusions When applied according to the manufacturers' recommendations, the µTBS of polymer-ceramic CAD/CAM materials and indirect composites is influenced by the luting cements.
Collapse
Affiliation(s)
- Leyla Sadighpour
- Dental Research Center, Dentistry Research Institute, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Geramipanah
- Dental Implant Research Center, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ghasri
- Department of Restorative Dentistry, Faculty of Dentistry, Shahed University, Tehran, Iran
| | - Mehrnoosh Neshatian
- Matrix Dynamic Group, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
21
|
Göktürk H, Karaarslan EŞ, Tekin E, Hologlu B, Sarıkaya I. The effect of the different restorations on fracture resistance of root-filled premolars. BMC Oral Health 2018; 18:196. [PMID: 30497451 PMCID: PMC6267872 DOI: 10.1186/s12903-018-0663-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 11/12/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The study investigated the fracture resistance of root-filled maxillary premolars with class II cavities restored by different restorations. METHODS A total of 55 intact maxillary premolar teeth were included (n = 11). G1 as positive control group, 44 teeth underwent root canal treatment, and MOD cavities were prepared. (G2) no restoration, (G3) direct composite restoration, (G4) direct composite strengthened with buccal to lingual pre-impregnated glass-fibers and (G5) ceramic inlay restoration. After thermocycling, fracture resistance test was performed and fracture type was recorded. Data were analyzed with one-way ANOVA and Chisquare test. RESULTS The mean fracture resistance was as follows: G1 had the highest fracture resistance, G2 had the lowest (p < 0.05). There were no significant differences between the fracture resistance values of the groups that underwent different restorations (G3, G4, G5) (p > 0.05). According to fracture type, the groups showed similar results (p > 0.05). A significant level of unrestorable fracture was detected in G5 (ceramic inlay) (p < 0.05). CONCLUSIONS All of the restoration techniques investigated herein increased the fracture strength of teeth; however, all of these values were lower than the fracture resistance of intact teeth. There were no significant differences between the fracture resistance values of the groups that underwent different restorations.
Collapse
Affiliation(s)
- Hakan Göktürk
- Department of Endodontics, Bolu Abant İzzet Baysal University Faculty of Dentistry, Bolu, Turkey
| | - Emine Şirin Karaarslan
- Department of Restorative Dentistry, Gaziosmanpasa University Faculty of Dentistry, Tokat, Turkey
| | - Elif Tekin
- Department of Endodontics, Gaziosmanpasa University Faculty of Dentistry, Tokat, Turkey
| | - Bilal Hologlu
- Department of Prosthodontics, Gaziosmanpasa University Faculty of Dentistry, 60100, Tokat, Turkey
| | - Işıl Sarıkaya
- Department of Prosthodontics, Gaziosmanpasa University Faculty of Dentistry, 60100, Tokat, Turkey.
| |
Collapse
|
22
|
Mine A, Kabetani T, Kawaguchi-Uemura A, Higashi M, Tajiri Y, Hagino R, Imai D, Yumitate M, Ban S, Matsumoto M, Yatani H. Effectiveness of current adhesive systems when bonding to CAD/CAM indirect resin materials: A review of 32 publications. JAPANESE DENTAL SCIENCE REVIEW 2018; 55:41-50. [PMID: 30733844 PMCID: PMC6354283 DOI: 10.1016/j.jdsr.2018.10.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 09/03/2018] [Accepted: 10/25/2018] [Indexed: 11/25/2022] Open
Abstract
The purpose of this review was to assess the available literature regarding bonding between current adhesive systems and computer-aided design/computer-aided manufacturing (CAD/CAM) indirect resin materials, to provide clinicians with a comparative overview of the relevant bonding procedures. An electronic search was performed through PubMed based on the keywords CAD/CAM and dental bonding. Additional relevant literature was obtained from the citations in the articles. A total of 313 papers were identified, of which 281 were excluded as being unsuitable, and an additional 3 papers were identified, giving a total of 32 articles that are included in this review. Based on this survey, it is recommended that microretentive surfaces should be generated by either blasting or hydrofluoric acid etching. This initial process should be followed by silanization to ensure chemical adhesion prior to bonding to CAD/CAM indirect resin composite materials (including Lava Ultimet, KATANA AVENCIA block, Gradia Block, Cerasmart, Paradigm, and Block HC) and CAD/CAM polymer-infiltrated ceramics (such as Vita Enamic). The use of materials containing methyl methacrylate (MMA) also appears to improve the bonding of CAD/CAM poly(methyl methacrylate) (PMMA) resin materials (including XHIPC-CAD/CAM, artBloc Temp, and Telio).
Collapse
Affiliation(s)
- Atsushi Mine
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Tomoshige Kabetani
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Asuka Kawaguchi-Uemura
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Mami Higashi
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Yuko Tajiri
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Ryosuke Hagino
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Dai Imai
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Masahiro Yumitate
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Shintaro Ban
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Mariko Matsumoto
- Department of Restorative Dentistry, Hokkaido University Graduate School of Dental Medicine, Hokkaido 060-8586, Japan
| | - Hirofumi Yatani
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| |
Collapse
|
23
|
Meda EM, Rached RN, Ignácio SA, Fornazari IA, Souza EM. Effect of Different Adhesive Strategies and Time on Microtensile Bond Strength of a CAD/CAM Composite to Dentin. Oper Dent 2018; 44:262-272. [PMID: 30212273 DOI: 10.2341/17-338-l] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
PURPOSE The aim of this study was to evaluate the effect of adhesive strategy and time on the microtensile bond strength of a computer-aided design/computer-aided manufacturing (CAD/CAM) composite to dentin. METHODS AND MATERIALS Sixty CAD/CAM composite blocks were bonded to human dentin with simplified bonding agents using etch-and-rinse and self-etching approaches and amine-based and amine-free resin cements, with and without the application of a dual-cure activator (DCA; n=10): SBP-ARC (Adper Single Bond Plus + RelyX ARC), SBP-RXU (Adper Single Bond Plus + RelyX Ultimate), SBP-DCA-RXU (Adper Single Bond Plus + DCA + RelyX Ultimate), SBU-ARC (Scotchbond Universal + RelyX ARC), SBU-RXU (Scotchbond Universal + RelyX Ultimate), and SBU-DCA-ARC (Scotchbond Universal + DCA + RelyX ARC). Each specimen was light cured for 40 seconds under load and stored in distilled water at 37°C for seven days. Stick-shaped specimens (1.0 mm2) were obtained. Half of the specimens underwent microtensile bond strength testing, and the other half were subjected to the same tests after six months of storage. Failure mode was determined using an optical microscope (40×). The data were analyzed by a two-way analysis of variance followed by the Games-Howell test and Student t-test (preset alpha of 0.05). RESULTS After seven days, SBU-RXU presented the highest mean bond strength, statistically different from only SBU-ARC (p<0.05). Most of the groups exhibited a statistically significant reduction in bond strength after 6 months (p<0.05), except SBP-RXU and SBU-ARC (p>0.05). CONCLUSION The adhesive strategy, with different associations between adhesive systems and resin cements, as well as the use of a DCA, affected the bond strength of both amine-free and amine-based resin cements to a CAD/CAM composite.
Collapse
|
24
|
Sotto-Maior BS, Carneiro RC, Francischone CE, Assis NMSP, Devito KL, Senna PM. Fatigue Behavior of Different CAD/CAM Materials for Monolithic, Implant-Supported Molar Crowns. J Prosthodont 2018; 28:e548-e551. [DOI: 10.1111/jopr.12922] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2018] [Indexed: 11/27/2022] Open
Affiliation(s)
- Bruno Salles Sotto-Maior
- Department of Restorative Dentistry; Federal University of Juiz de Fora; Juiz de Fora Minas Gerais Brazil
| | - Rafael Corrêa Carneiro
- Department of Implantology; São Leopoldo Mandic Institute and Research Center; Campinas São Paulo Brazil
| | | | | | - Karina Lopes Devito
- Department of Clinical Dentistry; Federal University of Juiz de Fora; Juiz de Fora Minas Gerais Brazil
| | - Plinio Mendes Senna
- Health Science Center; Unigranrio University; Duque de Caxias Rio de Janeiro Brazil
| |
Collapse
|
25
|
Facenda JC, Borba M, Corazza PH. A literature review on the new polymer-infiltrated ceramic-network material (PICN). J ESTHET RESTOR DENT 2018; 30:281-286. [DOI: 10.1111/jerd.12370] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Júlia Cadorim Facenda
- Post-graduation Program in Dentistry, Dental School; University of Passo Fundo; Passo Fundo Brazil
| | - Marcia Borba
- Post-graduation Program in Dentistry, Dental School; University of Passo Fundo; Passo Fundo Brazil
| | - Pedro Henrique Corazza
- Post-graduation Program in Dentistry, Dental School; University of Passo Fundo; Passo Fundo Brazil
| |
Collapse
|
26
|
Lohbauer U, Belli R, Cune MS, Schepke U. Fractography of clinically fractured, implant-supported dental computer-aided design and computer-aided manufacturing crowns. SAGE Open Med Case Rep 2017; 5:2050313X17741015. [PMID: 29204275 PMCID: PMC5703090 DOI: 10.1177/2050313x17741015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 10/12/2017] [Indexed: 11/21/2022] Open
Abstract
Today, a substantial part of the dental crown production uses computer-aided design and computer-aided manufacturing (CAD/CAM) technology. A recent step in restorative dentistry is the replacement of natural tooth structure with pre-polymerized and machined resin-based methacrylic polymers. Recently, a new CAD/CAM composite was launched for the crown indication in the load-bearing area, but the clinical reality forced the manufacturer to withdraw this specific indication. In parallel, a randomized clinical trial of CAD/CAM composite crowns luted on zirconia implant abutments revealed a high incidence of failure within the first year of service. Fractured crowns of this clinical trial were retrieved and submitted to a fractographic examination. The aim of the case series presented in this article was to identify failure reasons for a new type of CAD/CAM composite crown material (Lava Ultimate; 3M Oral Care, St. Paul, Minnesota, USA) via fractographic examinations and analytical assessment of luting surfaces and water absorption behavior. As a result, the debonding of the composite crowns from the zirconia implant abutments was identified as the central reason for failure. The adhesive interface was found the weakest link. A lack of silica at the zirconia surface certainly has compromised the bonding potential of the adhesive system from the beginning. Additionally, the hydrolytic stress released from swelling of the resin-based crown (water absorption) and transfer to the luting interface further added to the interfacial stress and most probably contributed to a great extend to the debonding failure.
Collapse
Affiliation(s)
- Ulrich Lohbauer
- Research Laboratory for Dental Biomaterials, Dental Clinic 1-Operative Dentistry and Periodontology, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Renan Belli
- Research Laboratory for Dental Biomaterials, Dental Clinic 1-Operative Dentistry and Periodontology, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Marco S Cune
- Department of Fixed Prosthodontics, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Ulf Schepke
- Department of Fixed Prosthodontics, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| |
Collapse
|
27
|
Rosentritt M, Preis V, Behr M, Hahnel S. Influence of preparation, fitting, and cementation on the vitro performance and fracture resistance of CAD/CAM crowns. J Dent 2017; 65:70-75. [DOI: 10.1016/j.jdent.2017.07.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/29/2017] [Accepted: 07/08/2017] [Indexed: 11/24/2022] Open
|