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Lam WYH, Lim TW, Yu Yon MJ, Chau JMH, Lai GCH, Wang DCP, Botelho MG. Posterior two-unit cantilevered zirconia resin-bonded fixed partial dentures: A 3-year prospective single-arm clinical trial. J Dent 2024; 147:105140. [PMID: 38901823 DOI: 10.1016/j.jdent.2024.105140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/12/2024] [Accepted: 06/17/2024] [Indexed: 06/22/2024] Open
Abstract
OBJECTIVES To evaluate the longevity of cantilevered zirconia-based resin-bonded fixed partial dentures (RBFPDs) in replacing missing posterior teeth, as well as the quality of life and patient satisfaction experienced by those receiving zirconia RBFPDs. METHODS A prospective single-arm uncontrolled clinical trial was conducted to replace one or more missing premolars or molars with a span of 5 to 8 mm using cantilevered zirconia RBFPDs. Thirty-six participants with 40 prostheses were recruited and underwent a 3-year clinical evaluation. The retainer designs included a minimum thickness of 0.8 mm, a minimum of 200° circumferential wraparound with an occlusal bar, and a connector dimension of 3 × 3 mm. Patient-reported outcomes, including patient satisfaction and Oral Health Impact Profile (OHIP), were assessed. RESULTS The average age of participants was 45.8 years, and 72.5 % were women. The success rate of the posterior zirconia RBFPDs was 76.2 %, with an estimated mean success duration of 46.1 months. The survival rate was 88.1 %, with an estimated mean survival duration of 49.4 months. Participants were highly satisfied with the treatment, achieving an average satisfaction score of 80.8 ± 11.9. Participants' total OHIP scores decreased from 52.3 to 39.6 after 3 years, indicating a significant improvement in oral health-related quality of life (P = 0.009). CONCLUSIONS After 3 years, a moderately high survival rate and favourable patient-reported outcomes of posterior cantilevered zirconia RBFPDs were achieved. Therefore, it can be recommended as a conservative treatment option to replace missing posterior teeth, provided that retainer design considerations are taken into account. CLINICAL SIGNIFICANCE Cantilevered zirconia RBFPDs for posterior teeth can serve as a conservative treatment option that is both aesthetically pleasing and biocompatible. It offers a more cost-effective alternative compared to dental implants, which are often prohibitively expensive for the majority of patients. This approach has the potential to greatly improve patient-reported outcomes.
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Affiliation(s)
- Walter Yu Hang Lam
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR
| | - Tong Wah Lim
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR
| | - Madeline Jun Yu Yon
- Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary, University of London, United Kingdom
| | - Jimmy Man Ho Chau
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR
| | - Gentle Chin Hung Lai
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR
| | - Denny Chon Pei Wang
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR
| | - Michael G Botelho
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR.
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Ozturk D, Sen N, Isler S. Effect of non-thermal plasma treatment and resin cements on the bond strength of zirconia ceramics with different yttria concentrations. BIOMED ENG-BIOMED TE 2024; 69:249-255. [PMID: 38143322 DOI: 10.1515/bmt-2023-0336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 12/12/2023] [Indexed: 12/26/2023]
Abstract
OBJECTIVES To investigate the effect of different surface treatments and resin cements on the shear bond strength of zirconia ceramics with different yttria concentrations. METHODS Zirconia blocks characterized by different yttria concentrations [Vita YZ HT (HT), Vita YZ ST (ST) and Vita YZ XT (XT)] were used to prepare disc-shaped specimens (n=252). Specimens prepared to investigate shear bond strength (SBS), water contact angle and surface roughness (Ra) were divided into four subgroups; control (C), sandblasting (S), sandblasting + nonthermal plasma treatment (SNTP) and nonthermal plasma treatment (NTP). For SBS testing, specimens were further divided into two groups (n=108) according to the luting cement used [Panavia F2.0 (P) and Rely X U200 (R)]. The water contact angles were determined by sessile drop technique and Ra was analyzed with optical profilometer. SBS tests were performed in a universal testing machine at a crosshead speed of 0.5 mm/min. The data sets were statistically analyzed with two and three-way ANOVAs followed by post-hoc comparisons (α=0.05). RESULTS The water contact angle and Ra data were significantly affected by surface treatments. The mean Ra values of ST and XT were significantly lower than HT for the surface treatment groups of C and NTP. The SBS values were significantly different among the groups subjected to different surface treatments. The mean SBS values of surface treatment groups (S, SNTP and NTP) when cemented with R were significantly higher than the groups of C (p<0.05). CONCLUSIONS For the tested zirconia ceramics with different yttria concentrations, non-thermal plasma activation helps to improve SBS and is a promising tool in practical use.
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Affiliation(s)
- Deniz Ozturk
- Department of Prosthodontics, Health Science Institute, University of Istanbul, Istanbul, Türkiye
| | - Nazmiye Sen
- Department of Prosthodontics, Faculty of Dentistry, University of Istanbul, Istanbul, Türkiye
- Department of Prosthodontics, Faculty of Dentistry, Kent University, Istanbul, Türkiye
| | - Sabire Isler
- Department of Prosthodontics, Faculty of Dentistry, University of Istanbul, Istanbul, Türkiye
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Ferrairo BM, de Azevedo-Silva LJ, Minim PR, Monteiro-Sousa RS, Pereira LF, Bitencourt SB, Cesar PF, Sidhu SK, Borges AFS. Biomechanical consideration in tooth-supported glass-ceramic restorations: A systematic review and meta-analysis of survival rates and irreparable failures. J Prosthet Dent 2024:S0022-3913(24)00357-3. [PMID: 38849264 DOI: 10.1016/j.prosdent.2024.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 06/09/2024]
Abstract
STATEMENT OF PROBLEM Knowledge on the biomechanical behavior of glass-ceramics, their survival rate over time, and their potential failures is essential for decision-making in clinical practice. Systematic reviews and meta-analysis of their survival rates and irreparable failures are lacking. PURPOSE The purpose of this systematic review and meta-analysis was to evaluate the survival rates and irreparable failures of various monolithic glass-ceramic dental restorations to help determine biomechanical indications. MATERIAL AND METHODS A comprehensive literature search was conducted across the PubMed, Scopus, Web of Science, and EMBASE databases based on the population, intervention, comparison, and outcome (PICO) question, risk of bias assessment, data extraction, subgroup analysis, and meta-analysis. Both randomized and nonrandomized clinical trials that reported survival rate and irreparable failure were screened. The risk, with a 95% confidence interval, was calculated by using the Mantel-Haenszel method. RESULTS A total of 46 articles met the inclusion criteria: 8 for laminate veneers, 20 for partial coverage restorations, 11 for single crowns, and 6 for fixed partial dentures, encompassing 1715 participants rehabilitated with 4209 restorations. The estimated cumulative survival rate for partial coverage restorations was 90% over an average span of 6.2 years, with an irreparable failure occurrence of n=5.9. Laminate veneers had a survival rate of 90.2% over 6.5 years, with an irreparable failure occurrence of n=8.2. Single crowns had a survival rate of 96% over 4.6 years and an irreparable failure of n=2.7. Conversely, fixed partial dentures had a survival rate of 76.1% over 6.5 years with an irreparable failure of n=5.2. CONCLUSIONS Glass-ceramic materials demonstrate relatively high survival rates, indicating that they provide a safe and reliable option for partial coverage restorations, laminate veneers, and single crowns. However, fixed partial dentures had a higher proportion of irreparable failures and a lower survival rate, and caution is required.
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Affiliation(s)
- Brunna M Ferrairo
- Postgraduate student, Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil
| | - Lucas José de Azevedo-Silva
- Postgraduate student, Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil
| | - Pedro R Minim
- Postgraduate student, Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil
| | - Raphaelle S Monteiro-Sousa
- Postgraduate student, Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil
| | - Leticia F Pereira
- Postgraduate student, Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil
| | - Sandro B Bitencourt
- Professor, Department of Rehabilitative and Reconstructive Dentistry, School of Dentistry, University of Louisville, Louisville, Ky
| | - Paulo Francisco Cesar
- Associate Professor, Department of Biomaterials and Oral Biology, School of Dentistry, School of Dentistry, University of São Paulo (USP), Bauru, Brazil
| | - Sharanbir K Sidhu
- Full Professor, Institute of Dentistry, Queen Mary, University of London, London, England, UK
| | - Ana Flávia S Borges
- Associate Professor, Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil.
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Alqutaibi AY, Alghauli MA, Almuzaini SA, Alharbi AF, Alsani AA, Mubarak AM, Alhajj MN. Failure and complication rates of different materials, designs, and bonding techniques of ceramic cantilever resin-bonded fixed dental prostheses for restoring missing anterior teeth: A systematic review and meta-analysis. J ESTHET RESTOR DENT 2024. [PMID: 38623053 DOI: 10.1111/jerd.13238] [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: 01/01/2024] [Revised: 03/30/2024] [Accepted: 04/03/2024] [Indexed: 04/17/2024]
Abstract
OBJECTIVES The objective of this review was to assess clinical trials that have examined the materials, design, and bonding of ceramic cantilevered resin-bonded fixed dental prostheses (RBFDPs) as a potential option for replacing missing anterior teeth. The evaluation primarily focuses on the rate of restoration failure and clinical complications. MATERIALS AND METHODS A thorough search of databases including PubMed/MEDLINE, Scopus, and the Cochrane Library, was conducted. The most recent search was performed in October 2023. Clinical studies that compared ceramic cantilevered RBFDPs with double retainers or cantilevered RBFDPs using different ceramic materials or bonding systems were included. The outcome measures considered were restoration failure and complication rates. RESULTS Twelve studies met the eligibility criteria. The pooled data showed a statistically significant decrease in complication events when using cantilever designs compared with double retainer designs (p < 0.05); however, there were no differences found between the two designs in terms of restoration failure. The complication and failure rate of cantilever RBFDPs did not show a statistically significant difference with or without ceramic primer application before luting with phosphate monomer-containing luting resin (p > 0.05). CONCLUSIONS Ceramic cantilevered RBFDPs have lower complication rates compared with those with double retainers. The use of a ceramic primer prior to luting composite resin for ceramic cantilevered RBFDPs decreases the occurrence of complications and failures, although this effect was not statistically significant. Additional research is required to confirm these findings. Glass ceramic cantilever RBFDPs showed a decrease in success after 6 years, requiring ongoing monitoring, but both zirconia and glass-infiltrated alumina cantilever RBFDPs have demonstrated durability with excellent long-term success and survival rates for up to 10 and 15 years. CLINICAL SIGNIFICANCE Cantilever ceramic RBFDPs in the anterior region are a less invasive and valuable treatment option, providing good esthetic results.
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Affiliation(s)
- Ahmed Yaseen Alqutaibi
- Substitutive Dental Science Department, College of Dentistry, Taibah University, Al-Madinah, Saudi Arabia
- Department of Prosthodontics, Faculty of Dentistry, Ibb University, Ibb, Yemen
| | | | | | | | | | - Arwa M Mubarak
- College of Dentistry, Taibah University, Al-Madinah, Saudi Arabia
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Habibzadeh S, Khamisi F, Mosaddad SA, Fernandes GVDO, Heboyan A. Full-ceramic resin-bonded fixed dental prostheses: A systematic review. J Appl Biomater Funct Mater 2024; 22:22808000241250118. [PMID: 38706266 DOI: 10.1177/22808000241250118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024] Open
Abstract
Despite the development of implant-supported prostheses, there are still patients for whom conservative treatments such as resin-bonded fixed dental prostheses (RBFDPs) are more appropriate. This study's objective was to analyze the available research on full-ceramic RBFDPs. In this study, Web of Science, MEDLINE/PubMed, Scopus, Embase, Cochrane Library, and Google Scholar databases were searched for articles published in English between 2010 and 2020. A total of 14 studies were reviewed based on the eligibility criteria. The results showed that using a cantilever design with one abutment had an advantage over two abutments. Additionally, it was proposed that preparations designed with retentive aids, such as a proximal box, groove, and pinhole, could improve RBFDP survival rates. IPS e.max ZirCAD, In-Ceram alumina, and zirconia CAD/CAM were the most commonly used framework materials. Most studies used air abrasion, salinization, or hydrofluoric acid for surface treatment. Adhesive resin cements were the most frequently used type of cement. The survival rate of In-Ceram ceramics (85.3%-94.8%) was lower than that of In-Ceram zirconia and IPS e.max ZirCAD. Debonding, followed by framework fracture, was the leading cause of failure. Following 3-10 years follow-up, the survival percentage of all-ceramic RBFDPs ranged from 76% to 100%. Although RBFDPs have demonstrated satisfactory success as a conservative treatment, long-term follow-ups and higher sample sizes in clinical research are required to gain more reliable outcomes on the clinical success rate of various RBFDP designs.
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Affiliation(s)
- Sareh Habibzadeh
- Department of Prosthodontics, School of Dentistry, International Campus, Tehran University of Medical Sciences, Tehran, Iran
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Faranak Khamisi
- School of Dentistry, International Campus, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Ali Mosaddad
- Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
- Faculty of Odontology, Department of Conservative Dentistry and Bucofacial Prosthesis, Complutense University of Madrid, Madrid, Spain
| | | | - Artak Heboyan
- Faculty of Stomatology, Department of Prosthodontics, Yerevan State Medical University after Mkhitar Heratsi, Yerevan, Armenia
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Chebil M, Gassara Y, Nasri S, Harzallah B. Terminology focused on design and retention methods used for anterior resin-bonded fixed partial dentures in English literature: A scoping review. Heliyon 2023; 9:e23047. [PMID: 38125455 PMCID: PMC10731222 DOI: 10.1016/j.heliyon.2023.e23047] [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: 03/30/2023] [Revised: 10/23/2023] [Accepted: 11/24/2023] [Indexed: 12/23/2023] Open
Abstract
Purpose Novel terms describing several designs of resin-bonded fixed partial dentures (RBFPDs) continue to appear. Indeed, a variety of terms are used in the English scientific literature The use of a standard terminology is important for a fair and efficient understanding. This study aimed to investigate if the terminology used to describe designs and retention methods for anterior RBFPDs is standard. Methods An electronic search in the English literature was conducted in PubMed/Medline to identify all publications reporting RBFPDs in the anterior region until August 2022. This search was completed by hand searching. Terms indicating different designs of RBFPDs were listed and then classified. Percentages of their use were calculated to determine the commonly used terms. Analysis of the use of these terms was performed based on the standards determined by the latest edition of the Glossary of Prosthodontic Terms (GPT). The impacts of the MeSH Thesaurus and GPT on the nomenclature used for RBFPDs was assessed. Results A total of 125 articles were eligible for this review. In the retained articles, 86 terms were found. Among them, thirty-nine terms were classified into three groups. Only six terms were defined in the latest edition of GPT (GPT-9). Several classified terms that are commonly used were not identified in the GPT-9. Conversely to the GPT-9 which impact was insignificant, the MeSH Thesaurus had an important impact on the nomenclature used for RBFPDs. Conclusion The terminology used to describe designs and retention methods for anterior RBFPDs was non-standard. The GPT-9, constituting an important reference, defined a limited number of terms related to RBFPDs and had no significant impact on the standardization of the terminology used for RBFPDs. Efforts should therefore be continued to standardize the terminology. A specialized mini-glossary grouping and defining all the terms found in this study will helpful in clarifying the terminology used for the anterior RBFPDs.
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Affiliation(s)
- M. Chebil
- Department of Fixed Prosthodontics, Academic Dental Clinic of Monastir, Tunisia
- University of Monastir, Faculty of Dental Medicine of Monastir, Research Laboratory of Occlusodontics and Ceramic Prostheses, LR16ES15, Monastir 5019, Tunisia
| | - Y. Gassara
- Department of Fixed Prosthodontics, Academic Dental Clinic of Monastir, Tunisia
- University of Monastir, Faculty of Dental Medicine of Monastir, Research Laboratory of Occlusodontics and Ceramic Prostheses, LR16ES15, Monastir 5019, Tunisia
| | - S. Nasri
- Department of Fixed Prosthodontics, Academic Dental Clinic of Monastir, Tunisia
- University of Monastir, Faculty of Dental Medicine of Monastir, Research Laboratory of Occlusodontics and Ceramic Prostheses, LR16ES15, Monastir 5019, Tunisia
| | - B. Harzallah
- Department of Fixed Prosthodontics, Academic Dental Clinic of Monastir, Tunisia
- University of Monastir, Faculty of Dental Medicine of Monastir, Research Laboratory of Occlusodontics and Ceramic Prostheses, LR16ES15, Monastir 5019, Tunisia
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Al-Bermani ASA, Quigley NP, Ha WN. Do zirconia single-retainer resin-bonded fixed dental prostheses present a viable treatment option for the replacement of missing anterior teeth? A systematic review and meta-analysis. J Prosthet Dent 2023; 130:533-542. [PMID: 34893319 DOI: 10.1016/j.prosdent.2021.10.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 11/29/2022]
Abstract
STATEMENT OF PROBLEM Zirconia has been widely used in restorative dentistry because of its favorable strength and esthetics. However, its polycrystalline structure presents a challenge for resin bonding. Significant research into surface treatments of zirconia to improve bonding has been reported, yet a universally accepted protocol remains elusive. PURPOSE The purpose of this systematic review and meta-analysis was to evaluate the performance of anterior single-retainer zirconia resin-bonded fixed dental prostheses (RBFDPs) and review the bonding protocols used in the published data. MATERIAL AND METHODS An electronic search of English language literature was conducted in the PubMed and Ovid (MEDLINE) databases. Following the application of inclusion and exclusion criteria, the research was evaluated to assess the quantitative data. RESULTS Of the included studies, 1 randomized controlled trial, 3 prospective cohort studies, and 2 retrospective cohort studies reporting on anterior single-retainer zirconia RBFDPs were evaluated. Over a 3- to 10-year period, the success rate of anterior single-retainer zirconia RBFDPs was over 80%. Although there were reports of debonds, this is a minor complication as rebonding is usually possible. Furthermore, catastrophic fractures of the entire prosthesis were rare. CONCLUSIONS Evidence for the use of single-retainer zirconia RBFDPs as a suitable treatment option for the replacement of anterior missing teeth is considerable. Based on the findings of this systematic review and meta-analysis, a 2-step process comprising micromechanical retention using airborne-particle abrasion and subsequent resin-zirconia adhesion by the application of 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP) can be recommended.
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Affiliation(s)
| | | | - William N Ha
- Lecturer, The University of Queensland, School of Dentistry, Brisbane, QLD, Australia
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Jonker JA, Tirlet G, Dagba A, Marniquet S, Ouwerkerk M, Cune MS, Gresnigt MMM. A 32-month evaluation of lithium disilicate cantilever resin-bonded fixed dental prostheses to replace a missing maxillary incisor. J Prosthet Dent 2023:S0022-3913(23)00545-0. [PMID: 37718177 DOI: 10.1016/j.prosdent.2023.07.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 09/19/2023]
Abstract
STATEMENT OF PROBLEM The absence of a tooth in the esthetic zone can cause emotional and social distress. The use of minimally invasive and visually pleasing lithium disilicate resin-bonded fixed dental prostheses (RBFDPs) may be a suitable option for replacing a missing maxillary incisor. However, the available literature on lithium disilicate cantilever RBFDPs is limited. PURPOSE This retrospective multicenter study assessed the survival and success rates of lithium disilicate anterior cantilever RBFDPs with an average follow-up period of 3 years up to 9 years. MATERIAL AND METHODS RBFDPs delivered by 3 operators were clinically assessed for survival using a modified United States Public Health Service criteria list. The incidence density was determined for each criterion and operator. The standard error and 95% confidence interval were calculated for each incidence density difference (α=.05 for all analyses). RESULTS A total of 108 RBFDPs were evaluated after a mean period of 32.45 months, ranging from 14 days to 111 months. None of the restorations exhibited failure, carious lesions, or fractures during the follow-up period. The primary reasons for reduced success rates were inflammation of the surrounding soft tissues and discoloration, with incidence densities of 0.074 and 0.057 per year, respectively. Significant differences were observed among RBFDPs from different operators for criteria that included adaptation, color match, marginal adaptation, polishability, surface staining, gingival health, and antagonist wear. CONCLUSIONS Cantilever lithium disilicate RBFDPs appear to be suitable for short-term restoration. RBFDPs exhibited visible changes after short-term follow-up. However, these changes did not result in failure.
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Affiliation(s)
- Joyce A Jonker
- Graduate student, Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Gil Tirlet
- Associate Professor, Department of Prosthetic Dentistry, Faculty of Dental Surgery, Paris Descartes University, Sorbonne Paris Cite, Montrouge, France; Private practice, Paris, France
| | | | | | - Marinus Ouwerkerk
- Postgraduate student, Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Marco S Cune
- Professor, Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Professor, Department of Oral Maxillofacial Surgery, Prosthodontics and Special Dental Care, St. Antonius Hospital, Nieuwegein, the Netherlands
| | - Marco M M Gresnigt
- Associate Professor, Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Associate Professor, Department of Special Dental Care, Martini Hospital, Groningen, the Netherlands..
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Malgaj T, Papšík R, Abram A, Kocjan A, Jevnikar P. Bonding Performance of Surface-Treated Zirconia Cantilevered Resin-Bonded Fixed Dental Prostheses: In Vitro Evaluation and Finite Element Analysis. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2646. [PMID: 37048940 PMCID: PMC10095828 DOI: 10.3390/ma16072646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
Debonding of zirconia cantilevered resin-bonded fixed dental prostheses (RBFDPs) remains the main treatment complication, therefore, the present in vitro study aimed to evaluate the effect of different surface pretreatments on the bonding of zirconia RBFDPs. Eighty milled zirconia maxillary central incisors, with complementary zirconia cantilevered RBFDPs, were randomly subjected to four different surface pretreatments (n = 20): as-machined (AM); airborne-particle abraded (APA); coated with nanostructured alumina coating (NAC); incisor air-abraded and RBFDP coated (NAC_APA). After bonding, half of each group (n = 10) was stored in deionized water (150 days/37 °C), thermocycled (37,500 cycles, 5-55 °C), and cyclically loaded (50 N/1.2 × 106). Load-bearing capacity (LBC) was determined using a quasi-static test. Additionally, finite element analysis (FEA) and fractography were performed. t-test and one-way ANOVA were used for statistical-analysis. Before aging, the NAC group provided superior LBC to other groups (p < 0.05). After aging, the AM specimens debonded spontaneously, while other groups exhibited comparable LBC (p ˃ 0.05). The FEA results correlated with the in vitro experiment and fractography, showing highly stressed areas in the bonding interface, cement layer, and in RBFDP's retainer wing and connector. The NAC RBFDPs exhibited comparable long-term bonding performance to APA and should be regarded as a zirconia pretreatment alternative to APA.
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Affiliation(s)
- Tine Malgaj
- Department of Prosthodontics, Faculty of Medicine, University of Ljubljana, Hrvatski trg 6, 1000 Ljubljana, Slovenia
| | - Roman Papšík
- Department of Material Science, Montanuniversität Leoben, A-8700 Leoben, Austria
| | - Anže Abram
- Department for Nanostructured Materials, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Andraž Kocjan
- Department for Nanostructured Materials, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Peter Jevnikar
- Department of Prosthodontics, Faculty of Medicine, University of Ljubljana, Hrvatski trg 6, 1000 Ljubljana, Slovenia
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10
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The Success Rate of the Adhesive Partial Fixed Prosthesis after Five Years: A Systematic Review. PROSTHESIS 2023. [DOI: 10.3390/prosthesis5010021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Objective: Evaluation of the success and/or survival rates of resin-bonded fixed partial dentures (RBFPDs) reported in the scientific literature with a minimum average observation time of five years. Materials and Methods: Search conducted in Pubmed, Web of Science, and Cochrane databases in free-text format and MESH terms, until May 2021. The random-effects model was used for the estimated survival rate, percentage per year of estimated failure, and existing complications for the meta-analysis. Study heterogeneity was assessed by the inconsistency test (I2) and study quality by the Downs and Black scale. Results: Eleven articles were included, with 687 participants and 783 RBFPDs, with a mean observation time of 8.2 years, with success rates mentioned in three articles and survival rates reported in nine articles. A total of 142 failures were reported for 783 prostheses, the most frequent being debonding. The estimated failure rate was between 0.53% and 5.10% per year. The studies were of sufficient quality. In the meta-analysis, the survival rates showed a significant result (p < 0.001), with moderate heterogeneity (I2 = 58.76%). Conclusions: Within the limitations of this research, mainly related to the heterogeneity of the studies and their quality, it seems possible to conclude that RBFPDs are a viable clinical option for the rehabilitation of patients with single edentulous spaces, mainly when using a single retainer and a zirconia-ceramic prosthesis.
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Abstract
Resin-bonded ceramic restorations are common treatment options. Clinical longevity of resin-bonded ceramic restorations depends on the quality and durability of the resin-ceramic bond. The type and composition of the specific ceramic determines the selection of the most effective bonding protocol. Such protocol typically includes a surface pretreatment step followed by application of a priming agent. Understanding of fundamental ceramic properties and chemical compositions enables the clinician to make proper material selection decisions for clinically successful and long-lasting restorations. Based on research accrued over the past decades, this article reviews and discusses current resin-bonding protocols to most commonly used dental ceramics.
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Affiliation(s)
- Markus B Blatz
- Department of Preventive and Restorative Sciences, University of Pennsylvania School of Dental Medicine, 240 South 40th Street, Philadelphia, PA 19104, USA.
| | - Julian Conejo
- Department of Preventive and Restorative Sciences, University of Pennsylvania School of Dental Medicine, 240 South 40th Street, Philadelphia, PA 19104, USA
| | - Amirah Alammar
- Sijam Medical Center, Northern Ring Road, Alghadeer District, Riyadh, Saudi Arabia
| | - Jose Ayub
- Department of Preventive and Restorative Sciences, University of Pennsylvania School of Dental Medicine, 240 South 40th Street, Philadelphia, PA 19104, USA
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Bilir H, Yuzbasioglu E, Sayar G, Kilinc DD, Bag HGG, Özcan M. CAD/CAM single-retainer monolithic zirconia ceramic resin-bonded fixed partial dentures bonded with two different resin cements: Up to 40 months clinical results of a randomized-controlled pilot study. J ESTHET RESTOR DENT 2022; 34:1122-1131. [PMID: 35920051 DOI: 10.1111/jerd.12945] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 04/11/2022] [Accepted: 07/11/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE This pilot study was part of a larger study planned for the future which aimed to compare the clinical success of two different resin cements used in the cementation of CAD/CAM single-retainer monolithic zirconia ceramic resin-bonded fixed dentures (RBFPDs). METHODS Twenty-four RBFPDs were fabricated with monolithic zirconia (Katana™ Zirconia HT, Kuraray Noritake Dental Inc, Tokyo, Japan). Panavia F2.0 (PF2.0; n = 12) and Panavia V5 (PV5; n = 12) were used for cementation. The survival period was defined as the time when the restoration was placed in the mouth and lasted until an irreparable damage occurred. The repairable failures were identified as relative and irreparable failures were identified as absolute failure. The survival rate of the RBFPDs was determined by the Kaplan-Meier estimator. Statistical significance was set at p < 0.05. RESULTS The mean observation times of the PF2.0 group and the PV5 group were 40.45 ± 6.15 months and 40.18 ± 6.41 months, respectively. Four failures occurred in the PF2.0 group. No failure was observed in the PV5 group. The curves of survival rate (PF2.0 = 80%, PV5 = 100%) showed no statistically significant difference (p = 0.031), although success rate (PF2.0 = 66.7%, PV5 = 100%) showed statistically significant difference (p = 0.317). CONCLUSION Up to 40 months mean follow-up period, performance of RBFPDs bonded with PV5 was better than with PF2.0. CLINICAL SIGNIFICANCE For clinicians, it is a matter of hesitation to apply single-retainer RBFPDs. This study contains results of 40 months (minimum 32, maximum 50.47 months) clinical follow-ups of single-retainer RBFPDs. These results will enlighten clinicians about the clinical success of the resin cement type for single-retainer monolithic zirconia ceramic RBFPDs.
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Affiliation(s)
- Halenur Bilir
- Department of Prosthodontics, School of Dentistry, Istanbul Medipol University, Istanbul, Turkey
| | - Emir Yuzbasioglu
- Department of Prosthodontics, School of Dental Medicine, Bahçeşehir University, Istanbul, Turkey
| | - Gulsilay Sayar
- Department of Orthodontics, School of Dental Medicine, Bahcesehir University, Istanbul, Turkey
| | | | | | - Mutlu Özcan
- Center for Dental and Oral Medicine, Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, University of Zurich, Dental Materials Unit, Zurich, Switzerland
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Do tooth-supported zirconia restorations present more technical failures related to fracture or loss of retention? Systematic review and meta-analysis. Clin Oral Investig 2022; 26:5129-5142. [PMID: 35660957 DOI: 10.1007/s00784-022-04573-z] [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: 01/13/2022] [Accepted: 05/29/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES This systematic review was performed to determine the main cause of technical failure of tooth-supported zirconia crowns and fixed partial dentures (FPDs), categorizing them as fracture/chipping or loss of retention/decementation. MATERIALS AND METHODS Electronic and manual searches were performed for randomized clinical trials, prospective clinical trials, and prospective cohort studies that reported the technical failure rates of zirconia restorations. The Cochrane Collaboration risk-of-bias tool and Newcastle-Ottawa scale were used to assess the quality of the studies. RESULTS Fifty-two studies were included and most of them had unclear risk of bias. Considering all reported fractures/chipping, for veneered crowns with 1 to 3 years of follow-up, the relative risk (RR) of fracture in relation to loss or retention was 3.95 (95% CI 1.18-13.23; p = 0.03). For 4 to 6 years of follow-up, the RR was 5.44 (95% CI 1.41-20.92; p = 0.01). For veneered FPDs with 1 to 3 years of follow-up, the RR was 5.98 (95% CI 2.31-15.01; p = 0.0002). For 4 to 6 years of follow-up, the RR was 3.70 (95% CI 1.63-8.41; p = 0.002). For 7 years or more of follow-up, the RR was 3.45 (95% CI 1.84-6.46; p = 0.0001). When only framework fractures were considered, there were no significant differences for the RR in all follow-up periods (p > 0.05). CONCLUSIONS Higher RR for fracture/chipping in relation to decementation for veneered zirconia crowns and FPDs at all follow-up times. For framework fractures, no difference was observed between the risk of failure of the restoration due to fracture or decementation. CLINICAL RELEVANCE Zirconia crowns and FPDs showed relatively high success and survival rates. However, considering the technical failures, there is approximately four times higher chance of fracture/chipping than loss of retention for both single and multi-unit tooth-supported veneered zirconia restorations.
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Zandinejad A, Khanlar LN, Barmak AB, Tagami J, Revilla-León M. Surface Roughness and Bond Strength of Resin Composite to Additively Manufactured Zirconia with Different Porosities. J Prosthodont 2022; 31:97-104. [PMID: 35313023 DOI: 10.1111/jopr.13434] [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: 09/09/2021] [Indexed: 11/30/2022] Open
Abstract
PURPOSE To investigate the bond strength of resin cement to additively manufactured (AM) zirconia with different porosities when compared to milled zirconia. MATERIALS AND METHODS A 12 × 5 mm disk virtual design file was used to fabricate a total of 48 disks divided into 4 groups: 3 groups were AM with different porosities including 0%-porosity (AMZ0 group), 20%-porosity (AMZ20 group), and 40%-porosity (AMZ40 group), and 1 milled zirconia (control or CNCZ group). The dimensions of all specimens were measured using a digital caliper. A 3D- confocal laser scanner was used to analyze surface morphology and measure the surface roughness (Sa), followed by SEM analysis. Tensile bond strength of composite resin cement to specimens was measured before and after aging procedures using a universal testing machine (n = 10). Failure modes were evaluated under a light microscope. Volumetric change data was analyzed using one-way ANOVA, and two-way ANOVA was used to compare bond strength values (α = 0.05). RESULTS There was a significant difference in volumetric changes among the groups. The CNCZ group showed the least changes in diameter 0.027 ± 0.029 mm and thickness 0.030 ± 0.012 mm and AM zirconia with 40% porosity showed the most volumetric changes in diameter 5.237 ± 0.023 mm. ANOVA test indicated an overall significant difference in surface roughness across all groups (F = 242.6, p < 0.001). The CNCZ group showed the highest mean Sa of 1.649 ± 0.240 µm, followed by AMZ40 group with Sa of 0.830 ± 0.063 µm, AMZ20 group with Sa of 0.780 ± 0.070 µm, and the AMZ0 group with Sa of 0.612 ± 0.063 µm. Two-way ANOVA showed significant difference in bond strength between the CNCZ group 12.109 ± 3.223 MPa and the AMZ0 group 8.629 ± 0.914 MPa, with significant pretest failures in specimens with porosities. Thermal cycling methods reduced the bond strength non-significantly in CNCZ group with no effect in the AMZ0 group. CONCLUSION Milled zirconia had a higher surface roughness and bond strength to composite resin cement than AM zirconia, and porosities in AM zirconia decreased the bond strength with significant pretest failures.
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Affiliation(s)
- Amirali Zandinejad
- Department of comprehensive dentistry, College of Dentistry, Texas A&M University, Dallas, TX
| | - Leila Nasiry Khanlar
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Abdul Basir Barmak
- Department of comprehensive dentistry, EIOH Medical Center, University of Rochester, Rochester, NY
| | - Junji Tagami
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Marta Revilla-León
- Department of comprehensive dentistry, School of Dentistry, University of Washington, Seattle, WA.,Department of comprehensive dentistry, Revilla Research Center, Madrid, Spain
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Alqutaibi AY, Ghulam O, Krsoum M, Binmahmoud S, Taher H, Elmalky W, Zafar MS. Revolution of Current Dental Zirconia: A Comprehensive Review. Molecules 2022; 27:1699. [PMID: 35268800 PMCID: PMC8911694 DOI: 10.3390/molecules27051699] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/16/2022] [Accepted: 03/02/2022] [Indexed: 01/27/2023] Open
Abstract
The aim of this article is to comprehensively review the revolution of dental zirconia (Zir), including its types, properties, applications, and cementation procedures. A comprehensive search of PubMed and Embase was conducted. The search was limited to manuscripts published in English. The final search was conducted in October 2021. Newly developed monolithic Zir ceramics have substantially enhanced esthetics and translucency. However, this material must be further studied in vitro and in vivo to determine its long-term ability to maintain its exceptional properties. According to the literature, monolithic translucent Zir has had promising results and a high survival rate. Thus, the utilization of this material is indicated when strength and esthetics are needed. Both the materials and methods used for cementation of monolithic Zir have significantly improved, encouraging dentists to use this material, especially when a conservative approach is required. Zir restorations showed promising outcomes, particularly for monolithic Zir crowns supported with implant and fixed dental prostheses.
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Affiliation(s)
- Ahmed Yaseen Alqutaibi
- Department of Prosthodontics, College of Dentistry, Taibah University, Al Madinah 41311, Saudi Arabia;
- Department of Prosthodontics, College of Dentistry, Ibb University, Ibb 70270, Yemen
| | - Omar Ghulam
- Dental Department, Prince Mohammad bin Abdulaziz Hospital (Ministry of National Guard-Health Affairs), Madinah 42324, Saudi Arabia; (O.G.); (M.K.); (H.T.)
| | - Majid Krsoum
- Dental Department, Prince Mohammad bin Abdulaziz Hospital (Ministry of National Guard-Health Affairs), Madinah 42324, Saudi Arabia; (O.G.); (M.K.); (H.T.)
| | - Suhail Binmahmoud
- Dental Department, Prince Sultan Armed Forces Hospital, Madinah 42375, Saudi Arabia;
| | - Hasan Taher
- Dental Department, Prince Mohammad bin Abdulaziz Hospital (Ministry of National Guard-Health Affairs), Madinah 42324, Saudi Arabia; (O.G.); (M.K.); (H.T.)
| | - Wael Elmalky
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah 41311, Saudi Arabia;
| | - Muhammad Sohail Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah 41311, Saudi Arabia;
- Department of Dental Materials, Islamic International Dental College, Riphah International University, Islamabad 44000, Pakistan
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16
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Clinical evaluation of zirconia cantilevered single-retainer resin-bonded fixed dental prostheses replacing missing canines and posterior teeth. J Dent 2021; 116:103907. [PMID: 34838845 DOI: 10.1016/j.jdent.2021.103907] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVES This clinical study evaluated the outcome and survival rate of resin-bonded fixed dental prostheses (RBFDPs) made of 3Y-TZP zirconia ceramic with a single-retainer design in the replacement of missing canines, premolars and molars. METHODS Twenty-one patients that were provided with twenty-seven cantilevered zirconia ceramic RBFDPs replacing maxillary or mandibular missing canines or posterior teeth were recruited from the patients' database at the University of Kiel, Germany. The preparation of the abutment teeth was minimal and limited to the enamel and consisted of a retainer wing and an occlusal rest on the abutment tooth. The restorations were observed over up to 12 years. RESULTS The patient age ranged from 16 to 72 years old with a mean age of 34 ± 21 years and 57% were females and 43% were males. The restorations were observed for a mean period of 53 ± 39 months with a minimum of 13 months and a maximum of 151 months of observation. No debonding for any of the restorations was detected, which amounts up to a survival rate of 100%. The development of treatable cervical caries on one abutment tooth of an elderly patient without extending to the retainer wing was the only recorded complication. CONCLUSIONS Zirconia ceramic single-retainer RBFDPs provide an esthetic, functional and minimally invasive treatment alternative to replace missing canines, premolar and molars with promising results due to excellent clinical outcome resulting from a survival rate of 100% and a success rate of 96.3% over a mean observation time of 53 ± 39 months. CLINICAL SIGNIFICANCE Zirconia ceramic single-retainer RBFDPs might be a valid minimally-invasive option for replacing missing canines and missing teeth in the posterior area especially for young patients, in whom implants are contraindicated and conventional fixed dental prostheses are too invasive.
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Influence of nanostructured alumina coating on the clinical performance of zirconia cantilevered resin-bonded fixed dental prostheses: Up to 3-year results of a prospective, randomized, controlled clinical trial. J Prosthet Dent 2021; 129:725-731. [PMID: 34420804 DOI: 10.1016/j.prosdent.2021.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 07/09/2021] [Accepted: 07/09/2021] [Indexed: 11/21/2022]
Abstract
STATEMENT OF PROBLEM The debonding of zirconia cantilevered resin-bonded fixed dental prostheses remains a technical complication because zirconia's chemical inertness impedes adequate surface preparation for bonding. Limited clinical evidence on the performance of various pretreatment methods for the bonding surface of zirconia resin-bonded fixed dental prostheses is available. PURPOSE The present prospective, randomized, controlled clinical trial aimed at evaluating the performance of zirconia resin-bonded fixed dental prostheses prepared with nanostructured alumina coating. MATERIAL AND METHODS The study adopted a prospective, randomized, controlled, double-blind (patients, operator) design to compare the performance of nanostructured alumina coating with that of conventional airborne-particle abrasion. Twenty-seven healthy patients needing a replacement of a missing maxillary or mandibular central or lateral incisor were screened and rated to be eligible, and 31 zirconia cantilevered resin-bonded fixed dental prostheses were randomly allocated into 1 of 2 groups. The first group (n=15), where the restoration bonding surface was airborne-particle abraded with 50-μm alumina, served as a control group. In the second group (n=16), the restorations were pretreated with nanostructured alumina coating. Treatment and data collection were standardized. The primary outcome evaluated was the survival of the RBFDPs as defined by the restoration not debonding. The Kaplan-Meier analysis of cumulative survival was performed, and nonparametric tests were used to determine patient-specific differences between both study groups (age, sex, restored arch, tooth replaced, bonding surface area) (α=.05). Retainer wing surfaces of debonded resin-bonded fixed dental prostheses were inspected under a scanning electron microscope. RESULTS Within a mean ±standard deviation observation period of 22.4 ±7.7 months (minimum, 8.3; maximum, 37.9 months), 3 debondings occurred, and the survival rate was 90.3%. The survival rate was 93.8% for the nanostructured alumina coating and 86.7% for the control group, with no statistically significant differences (log-rank, P=.54). No patient-specific differences were found between study groups (P>.05). As per the scanning electron micrographs, the majority of the nanostructured alumina-coated surfaces had large areas of nanostructured alumina residue, whereas the airborne-particle abraded surfaces exhibited predominantly adhesive failure with less cement residue. CONCLUSIONS Over a mean observation period of 2 years, both zirconia pretreatments showed promising and comparable clinical results; therefore, nanostructured alumina coating could be regarded as a viable alternative pretreatment method to airborne-particle abrasion.
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Laumbacher H, Strasser T, Knüttel H, Rosentritt M. Long-term clinical performance and complications of zirconia-based tooth- and implant-supported fixed prosthodontic restorations: A summary of systematic reviews. J Dent 2021; 111:103723. [PMID: 34119611 DOI: 10.1016/j.jdent.2021.103723] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/21/2021] [Accepted: 06/02/2021] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVES To present an overview on systematic reviews on prosthodontic zirconia restorations and to discuss long-term complications as well as information on anatomical and functional changes to the masticatory system. DATA/SOURCES MEDLINE, EMBASE, Trip medical, and Cochrane Library databases were searched for systematic reviews up to February 2021. Bias was assessed and clinical survival and complications were analyzed. STUDY SELECTION 38 eligible articles published between 2006 and 2021 were included. The reviews were based on 128 in vivo studies on approximately 10,000 zirconia restorations. 5-year cumulative survival rates varied between 91.2% and 95.9% for tooth-supported (TS) single crowns (SC), 89.4% and 100% for TS multi-unit fixed dental prostheses (FDP), 97.1% and 97.6% for implant-supported (IS) SCs and 93.0% and 100% for IS FDPs. Chipping was the most often technical complication, followed by framework fracture, loss of retention, marginal discrepancies/discoloration, occlusal roughness and abutment/screw loosening. Color mismatch was the only esthetic complication. Biological complications were caries, endodontic complications, tooth fracture, periodontal disease, abrasion/attrition, persisting pain, high sensitivity, peri‑implantitis and soft tissue issues. Patients with bruxism were only examined sporadically. CONCLUSIONS 5-year results for zirconia restorations were satisfactory. The predominant technical problem of veneering fractures could be overcome with adapted design or fabrication and application of monolithic restorations, but reviews of clinical studies on this subject are rare. The impact of zirconia restorations on the masticatory system remains unclear. CLINICAL SIGNIFICANCE Zirconia restorations are experiencing a rapidly increasing use in dental practice. Being highly wear-resistant, hard and durable, it can be assumed that they do not follow natural abrasion and changes in the masticatory system. Possible long-term effects on the stomatognathic system as a whole should therefore be considered.
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Affiliation(s)
- Harald Laumbacher
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042 Regensburg, Germany
| | - Thomas Strasser
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042 Regensburg, Germany
| | - Helge Knüttel
- University Library, University of Regensburg, 93042 Regensburg, Germany
| | - Martin Rosentritt
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042 Regensburg, Germany.
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Quigley NP, Loo DS, Choy C, Ha WN. Clinical efficacy of methods for bonding to zirconia: A systematic review. J Prosthet Dent 2021; 125:231-240. [DOI: 10.1016/j.prosdent.2019.12.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 12/03/2019] [Accepted: 12/03/2019] [Indexed: 01/20/2023]
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Al-Akhali M, Al-Dobaei E, Wille S, Mourshed B, Kern M. Influence of elapsed time between airborne-particle abrasion and bonding to zirconia bond strength. Dent Mater 2021; 37:516-522. [PMID: 33461761 DOI: 10.1016/j.dental.2020.12.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 12/20/2020] [Accepted: 12/30/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The airborne-particle abrasion of zirconia with alumina particle (APA) has been reported to result in the durable bonding of appropriate adhesive luting systems. However, whether a delay between APA and the application of the adhesive luting material might affect the resulting bond strength and its durability is unknown. METHODS A total of 140 disc-shaped zirconia specimens were divided according to the elapsed time between the APA of zirconia and its bonding into 5 test groups (15 min, 1 h, 4 h, 24 h, and 72 h). The specimens were airborne-particle abraded with 50-μm Al2O3, and then stored at room temperature according to the test group (n = 28/group). Surface free energy (SFE) was measured for 12 specimens per group using a goniometer. For each group 16 Plexiglas tubes filled with composite resin were bonded to the zirconia specimens with an adhesive luting resin (Panavia 21). Tensile bond strength (TBS) was tested for subgroups of 8 specimens after water storage for 3 days and for 150 days with 37,500 thermal cycles. RESULTS SFE decreased significantly within 24 h after APA. TBS after 3 days of water storage ranged from 38.3 (1 h) to 28.4 MPa (24 h) and after 150 days with thermocycling from 38.3 (15 min) to 24.8 MPa (24 h). SIGNIFICANCE Based on these results, the time between the APA of zirconia and the application of adhesive materials should be minimized when bonding nonretentive zirconia restorations clinically.
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Affiliation(s)
- Majed Al-Akhali
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel, Germany.
| | - Eglal Al-Dobaei
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel, Germany
| | - Sebastian Wille
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel, Germany
| | - Bilal Mourshed
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel, Germany
| | - Matthias Kern
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel, Germany
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Idris RI, Shoji Y, Lim TW. Occlusal force and occlusal contact reestablishment with resin-bonded fixed partial dental prostheses using the Dahl concept: A clinical study. J Prosthet Dent 2021; 127:737-743. [PMID: 33455729 DOI: 10.1016/j.prosdent.2020.11.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/20/2020] [Accepted: 11/20/2020] [Indexed: 11/30/2022]
Abstract
STATEMENT OF PROBLEM Space creation for a metal retainer of the resin-bonded fixed partial dental prostheses (RBFPDPs) with the Dahl concept remains controversial because of the lack of clinical studies. PURPOSE The purpose of this clinical study was to investigate the occlusal force and occlusal contact reestablishment of RBFPDPs cemented at an increased occlusal vertical dimension (the Dahl concept) and to evaluate the factors affecting them. MATERIAL AND METHODS A prospective clinical study was carried out on 28 participants receiving cantilevered RBFPDPs at an increased occlusal vertical dimension at the Faculty of Dentistry, University Teknologi MARA. Maximum occlusal forces were recorded at precementation, postcementation, and 12-week review visit by using pressure indicating film, while occlusal contact reestablishment was assessed at the precementation stage and 12-week review visit by using shim stock foils. The Wilcoxon signed-rank and chi-squared tests were used for statistical analysis (α=.05). RESULTS Significant differences were found for maximum occlusal force between the precementation and the postcementation and between the postcementation and the 12-week review of RBFPDPs (P<.05 for both) in all 28 participants. However, no significant difference was found between the precementation and the 12-week review (P=.085). The occlusal force reestablishment concerning sex, age, location, and arch of the prosthesis was found to be similar. Most of the participants (89.3%) achieved complete occlusal contact reestablishment and 10.7% partial occlusal reestablishment. The demographic and prosthesis factors were not significantly related to the occlusal reestablishment (P>.05). CONCLUSIONS Overall, occlusal force was reestablished after 12 weeks, and occlusal contact was completely reestablished in most participants after placement of RBFPDPs at an increased occlusal vertical dimension.
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Affiliation(s)
- Rostam Iffendi Idris
- Prosthodontic Resident, Faculty of Dentistry, Centre of Restorative Dentistry Studies, Jalan Hospital, University Teknologi MARA, Sungai Buloh Campus, Sungai Buloh, Selangor, Malaysia
| | - Yoshinobu Shoji
- Associate Professor, Faculty of Dentistry, Center of Oral & Maxillofacial Diagnostic and Medicine, Jalan Hospital, University Teknologi MARA, Sungai Buloh Campus, Sungai Buloh, Selangor, Malaysia
| | - Tong Wah Lim
- Associate Professor, Faculty of Dentistry, Centre of Restorative Dentistry Studies, Jalan Hospital, University Teknologi MARA, Sungai Buloh Campus, Sungai Buloh, Selangor, Malaysia.
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Gupta S, Abdulmajeed A, Donovan T, Boushell L, Bencharit S, Sulaiman TA. Monolithic Zirconia Partial Coverage Restorations: An In Vitro Mastication Simulation Study. J Prosthodont 2020; 30:76-82. [PMID: 33200849 DOI: 10.1111/jopr.13287] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/11/2020] [Indexed: 11/27/2022] Open
Abstract
PURPOSE To evaluate the survival rate (fatigue resistance), bonding efficiency and marginal integrity of monolithic zirconia partial and full coverage single restorations adhesively bonded to the tooth structure using air-particle abrasion, a primer with 10-methacryloyloxydecyl dihydrogen phosphate and a composite-resin cement (APC) protocol. MATERIALS AND METHODS Extracted human premolars (N = 32) were randomly divided into four groups of eight specimens each. Premolars were prepared for the following restorations: full crown (group 1, control), mesial-occlusal-distal-facial onlay (MODF, group 2) preserving 2 mm facio-lingual functional cusp width, mesial-occlusal-distal-lingual onlay (MODL, group 3) preserving 2 mm facio-lingual nonfunctional cusp width, mesial-occlusal-distal-buccal-lingual onlay (MODBL, group 4), overlay preparation. All restorations were milled from monolithic 3 mol% yttria (3Y) zirconia blocks (ZirCad, A1 LT, Ivoclar Vivadent) with CAD/CAM software presets at minimum occlusal and axial thicknesses of 1 mm. The intaglio surface of the restorations was air-particle abraded (50 µm Al2 O3 , 2-Bar pressure, 15 s, 10 mm distance) and primed. An adhesive cement system was used to bond the restorations. Each group was subjected to thermomechanical loading for 1.2 million cycles (force = 70 N, 1.4 Hz) with simultaneous thermocycling (5-55°C, 30 s dwell time) using a mastication simulator. All specimens were examined under scanning electron microscope (SEM) analysis (30, 100, and 150×) to evaluate cracks and marginal defects. Fracture of restoration and/or fracture within tooth structure, and debonding were considered modes of failure. RESULTS One specimen from group 2 debonded at 632,000 cycles. None of the specimens failed due to fracture. SEM analysis at 30× indicated marginal integrity issue of the remaining seven intact specimens of group 2 in the area of antagonist contact. No specimens from group 1, 3, and 4 demonstrated marginal integrity issue at 30×. None of the specimens demonstrated any microcrack at 100× and150×. CONCLUSIONS Due to its fatigue resistance, 3Y-zirconia is a viable option for partial and full coverage single restorations. Following a strict bonding protocol, zirconia demonstrated durable adhesion to the tooth structure. Occlusal contact on restoration margins should be avoided.
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Affiliation(s)
- Savita Gupta
- Division of Comprehensive Oral Health, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Awab Abdulmajeed
- Department of General Practice, School of Dentistry, Virginia Commonwealth University, Richmond, VA
| | - Terry Donovan
- Division of Comprehensive Oral Health, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Lee Boushell
- Department of General Dentistry, East Carolina University, Greenville, NC
| | - Sompop Bencharit
- Department of General Practice, School of Dentistry, Virginia Commonwealth University, Richmond, VA
| | - Taiseer A Sulaiman
- Division of Comprehensive Oral Health, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC
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Yazigi C, Elsayed A, Kern M. Secure and precise insertion of minimally invasive resin-bonded fixed dental prostheses after ridge augmentation by means of a positioning splint. J ESTHET RESTOR DENT 2020; 33:415-421. [PMID: 32945608 DOI: 10.1111/jerd.12656] [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] [Received: 07/09/2020] [Revised: 08/19/2020] [Accepted: 09/01/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Single-retainer resin-bonded fixed dental prostheses (RBFDPs) are described as an excellent minimally invasive treatment modality for the replacement of a single missing incisor even in cases of congenitally missing teeth that are often associated with hard and soft tissue defects that need to be properly managed to optimize the esthetic outcome. The lack of a retentive form due to the minimally invasive preparation form makes the adhesive bonding procedure for RBFDPs relatively technique-sensitive and might discourage practitioners from offering this treatment modality. CLINICAL CONSIDERATIONS A patient with both maxillary lateral incisors congenitally missing was assessed for eligibility for treatment with RBFDPs. Bilateral horizontal ridge defects were present and treated through ridge augmentation to ensure an ovate pontic design and enhance the esthetic outcome. A minimally invasive preparation within enamel was conducted; the restorations were digitally designed and milled out of (3Y-TZP) zirconia ceramic with labial veneering with feldspathic ceramic for enhanced esthetics. An improved design of positioning splints was used for the adhesive bonding procedure to ensure exact, secure, and flawless insertion of the restorations. CONCLUSIONS RBFDPs offer a highly esthetic treatment modality for missing teeth in the anterior area. Tissue defects could be overcome be means of a minor oral surgery, while using improved positioning splints might ensure flawless adhesive bonding and promote the usage of RBFDPs. CLINICAL SIGNIFICANCE Hard and soft tissue defects can be remarkably optimized through a minor ridge augmentation. Improved positioning splints allow an easy and secure positioning as well as visual inspection of the seating in end-position and complete removal of resin cement excess. Implementing the concept of insertion splints might promote RBFDPs for anterior tooth replacement as it helps preventing bonding errors.
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Affiliation(s)
- Christine Yazigi
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel
| | - Adham Elsayed
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel
| | - Matthias Kern
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel
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24
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Türkaslan S, Mutluay MM, Vallittu PK, Arola D, Tezvergil-Mutluay A. Fatigue resistance of metal-free cantilever bridges supported by labial laminate veneers. J Mech Behav Biomed Mater 2020; 103:103596. [PMID: 32090925 DOI: 10.1016/j.jmbbm.2019.103596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 11/18/2019] [Accepted: 12/10/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Süha Türkaslan
- Suleyman Demirel University, Faculty of Dentistry, Department of Prosthodontics, Isparta, Turkey
| | - Mustafa Murat Mutluay
- Adhesive Dentistry Research Group, Department of Restorative Dentistry and Cardiology, Institute of Dentistry, University of Turku, Turku, Finland; Institute of Dentistry, University of Eastern Finland, Kuopio, Finland; Kuopio University Hospital, Kuopio, Finland.
| | - Pekka K Vallittu
- Department of Biomaterials Science, Turku University, and City of Turku, Welfare Division, Turku, Finland
| | - Dwayne Arola
- Materials Science and Engineering, University of Washington, Seattle, WA, USA; Department of Restorative Dentistry and Department of Oral Health Sciences, Dental School, University of Washington Seattle, WA, USA
| | - Arzu Tezvergil-Mutluay
- Adhesive Dentistry Research Group, Department of Restorative Dentistry and Cardiology, Institute of Dentistry, University of Turku, Turku, Finland; Turku University Hospital, TYKS, Turku, Finland
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25
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Kontonasaki E, Giasimakopoulos P, Rigos AE. Strength and aging resistance of monolithic zirconia: an update to current knowledge. JAPANESE DENTAL SCIENCE REVIEW 2019; 56:1-23. [PMID: 31768195 PMCID: PMC6872834 DOI: 10.1016/j.jdsr.2019.09.002] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/02/2019] [Accepted: 09/17/2019] [Indexed: 01/01/2023] Open
Abstract
New zirconia compositions with optimized esthetic properties have emerged due to the fast-growing technology in zirconia manufacturing. However, the large variety of commercial products and synthesis routes, make impossible to include all of them under the general term of “monolithic zirconia ceramics”. Ultra- or high translucent monolithic formulations contain 3–8 mol% yttria, which results in materials with completely different structure, optical and mechanical properties. The purpose of this study was to provide an update to the current knowledge concerning monolithic zirconia and to review factors related to strength and aging resistance. Factors such as composition, coloring procedures, sintering method and temperature, may affect both strength and aging resistance to a more or less extend. A significant reduction of mechanical properties has been correlated to high translucent zirconia formualtions while regarding aging resistance, the findings are contradictory, necessitating more and thorough investigation. Despite the obvious advantages of contemporary monolithic zirconia ceramics, further scientific evidence is required that will eventually lead to the appropriate laboratory and clinical guidelines for their use. Until then, a safe suggestion should be to utilize high-strength partially-stabilized zirconia for posterior or long span restorations and fully-stabilized ultra-translucent zirconia for anterior single crowns and short span fixed partial dentures.
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Affiliation(s)
- Eleana Kontonasaki
- Department of Prosthodontics, Faculty of Dentistry, School of Health Sciences, Aristotle University of Thessaloniki, Greece
- Corresponding author at: Laboratory of Prosthodontics, Department of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece.
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26
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Savi A, Crescini A, Manfredi M, De Maria A, Bresciano M. Agenesis of a maxillary lateral incisor associated with bilateral canine inclusions: A noninvasive multidisciplinary approach. J ESTHET RESTOR DENT 2019; 31:542-552. [DOI: 10.1111/jerd.12515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/17/2019] [Accepted: 07/07/2019] [Indexed: 11/26/2022]
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27
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Kontonasaki E, Rigos AE, Ilia C, Istantsos T. Monolithic Zirconia: An Update to Current Knowledge. Optical Properties, Wear, and Clinical Performance. Dent J (Basel) 2019; 7:dj7030090. [PMID: 31480688 PMCID: PMC6784470 DOI: 10.3390/dj7030090] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/22/2019] [Accepted: 08/20/2019] [Indexed: 01/09/2023] Open
Abstract
The purpose of this paper was to update the knowledge concerning the wear, translucency, as well as clinical performance of monolithic zirconia ceramics, aiming at highlighting their advantages and weaknesses through data presented in recent literature. New ultra-translucent and multicolor monolithic zirconia ceramics present considerably improved aesthetics and translucency, which, according to the literature reviewed, is similar to those of the more translucent lithium disilicate ceramics. A profound advantage is their high strength at thin geometries preserving their mechanical integrity. Based on the reviewed articles, monolithic zirconia ceramics cause minimal wear of antagonists, especially if appropriately polished, although no evidence still exists regarding the ultra-translucent compositions. Concerning the survival of monolithic zirconia restorations, the present review demonstrates the findings of the existing short-term studies, which reveal promising results after evaluating their performance for up to 5 or 7 years. Although a significant increase in translucency has been achieved, new translucent monolithic zirconia ceramics have to be further evaluated both in vitro and in vivo for their long-term potential to preserve their outstanding properties. Due to limited studies evaluating the wear properties of ultra-translucent material, no sound conclusions can be made, whereas well-designed clinical studies are urgently needed to enlighten issues of prognosis and long-term survival.
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Affiliation(s)
- Eleana Kontonasaki
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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28
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Scaminaci Russo D, Cinelli F, Sarti C, Giachetti L. Adhesion to Zirconia: A Systematic Review of Current Conditioning Methods and Bonding Materials. Dent J (Basel) 2019; 7:dj7030074. [PMID: 31374820 PMCID: PMC6784479 DOI: 10.3390/dj7030074] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/13/2019] [Accepted: 07/06/2019] [Indexed: 11/16/2022] Open
Abstract
Background. Reliable bonding between resin composite cements and high strength ceramics is difficult to achieve because of their chemical inertness and lack of silica content that makes etching impossible. The purpose of this review is to classify and analyze the existing methods and materials suggested to improve the adhesion of zirconia to dental substrate by using composite resins, in order to explore current trends in surface conditioning methods with predictable results. Methods. The current literature, examining the bond strength of zirconia ceramics, and including in vitro studies, clinical studies, and a systematic review, was analyzed. The research in the literature was carried out using PubMed and Cochrane Library databases, only papers in English, published online from 2013 to 2018. The following keywords and their combinations were used: Zirconia, 3Y-TZP, Adhesion, Adhesive cementation, Bonding, Resin, Composite resin, Composite material, Dentin, Enamel. Results. Research, in PubMed and Cochrane Library databases, provided 390 titles with abstracts. From these, a total of 93 publications were chosen for analysis. After a full text evaluation, seven articles were discarded. Therefore, the final sample was 86, including in vitro, clinical studies, and one systematic review. Various adhesive techniques with different testing methods were examined. Conclusions. Airborne-particle abrasion and tribo-chemical silica coating are the pre-treatment methods with more evidence in the literature. Increased adhesion could be expected after physico-chemical conditioning of zirconia. Surface contamination has a negative effect on adhesion. There is no evidence to support a universal adhesion protocol.
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Affiliation(s)
- Daniele Scaminaci Russo
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy
| | - Francesca Cinelli
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy
| | - Chiara Sarti
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy
| | - Luca Giachetti
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy.
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29
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Akazawa N, Koizumi H, Nogawa H, Kodaira A, Burrow MF, Matsumura H. Effect of etching with potassium hydrogen difluoride and ammonium hydrogen difluoride on bonding of a tri-n-butylborane initiated resin to zirconia. Dent Mater J 2019; 38:540-546. [PMID: 31068549 DOI: 10.4012/dmj.2018-152] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The purpose of the current study was to evaluate the effect of etching with potassium hydrogen difluoride (KHF2) and ammonium hydrogen difluoride (NH4HF2) on the bond strength of a self-polymerizing methyl methacrylate resin (MMA-TBB) bonded to zirconia. Zirconia disks were prepared using the following surface treatment: no treatment, alumina blasting, and etching with KHF2 or NH4HF2. The specimens were bonded with the MMA-TBB. The shear bond (Ø=5 mm) strength was measured. The surface free energies of the specimens were determined by measuring contact angles. The KHF2 and NH4HF2 groups exhibited higher shear bond strength and surface free energy than did the alumina blasting and no treatment groups. Compared with alumina blasting, etching with KHF2 and NH4HF2 exhibited superior bonding ability of mechanical retention to zirconia.
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Affiliation(s)
- Nobutaka Akazawa
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
| | - Hiroyasu Koizumi
- Department of Dental Materials, Nihon University School of Dentistry.,Faculty of Dentistry, University of Hong Kong
| | - Hiroshi Nogawa
- Department of Fixed Prosthodontics, Nihon University School of Dentistry.,Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry
| | - Akihisa Kodaira
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry
| | | | - Hideo Matsumura
- Department of Fixed Prosthodontics, Nihon University School of Dentistry.,Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry
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30
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Zarone F, Di Mauro MI, Ausiello P, Ruggiero G, Sorrentino R. Current status on lithium disilicate and zirconia: a narrative review. BMC Oral Health 2019; 19:134. [PMID: 31272441 PMCID: PMC6610968 DOI: 10.1186/s12903-019-0838-x] [Citation(s) in RCA: 168] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 06/27/2019] [Indexed: 01/28/2023] Open
Abstract
Background The introduction of the new generation of particle-filled and high strength ceramics, hybrid composites and technopolymers in the last decade has offered an extensive palette of dental materials broadening the clinical indications in fixed prosthodontics, in the light of minimally invasive dentistry dictates. Moreover, last years have seen a dramatic increase in the patients’ demand for non-metallic materials, sometimes induced by metal-phobia or alleged allergies. Therefore, the attention of scientific research has been progressively focusing on such materials, particularly on lithium disilicate and zirconia, in order to shed light on properties, indications and limitations of the new protagonists of the prosthetic scene. Methods This article is aimed at providing a narrative review regarding the state-of-the-art in the field of these popular ceramic materials, as to their physical-chemical, mechanical and optical properties, as well as to the proper dental applications, by means of scientific literature analysis and with reference to the authors’ clinical experience. Results A huge amount of data, sometimes conflicting, is available today. Both in vitro and in vivo studies pointed out the outstanding peculiarities of lithium disilicate and zirconia: unparalleled optical and esthetic properties, together with high biocompatibility, high mechanical resistance, reduced thickness and favorable wear behavior have been increasingly orientating the clinicians’ choice toward such ceramics. Conclusions The noticeable properties and versatility make lithium disilicate and zirconia materials of choice for modern prosthetic dentistry, requiring high esthetic and mechanical performances combined with a minimal invasive approach, so that the utilization of such metal-free ceramics has become more and more widespread over time.
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Affiliation(s)
- Fernando Zarone
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University "Federico II" of Naples, Viale Pansini, 5 -, 80131, Naples, Italy
| | - Maria Irene Di Mauro
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University "Federico II" of Naples, Viale Pansini, 5 -, 80131, Naples, Italy.
| | - Pietro Ausiello
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University "Federico II" of Naples, Viale Pansini, 5 -, 80131, Naples, Italy
| | - Gennaro Ruggiero
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University "Federico II" of Naples, Viale Pansini, 5 -, 80131, Naples, Italy
| | - Roberto Sorrentino
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University "Federico II" of Naples, Viale Pansini, 5 -, 80131, Naples, Italy
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31
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Influence of different preparation forms on the loading-bearing capacity of zirconia cantilever FDPs. A laboratory study. J Prosthodont Res 2019; 63:347-353. [DOI: 10.1016/j.jpor.2018.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 10/08/2018] [Accepted: 10/10/2018] [Indexed: 11/21/2022]
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32
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Samran A, Al-Ammari A, El Bahra S, Halboub E, Wille S, Kern M. Bond strength durability of self-adhesive resin cements to zirconia ceramic: An in vitro study. J Prosthet Dent 2019; 121:477-484. [DOI: 10.1016/j.prosdent.2018.03.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 03/17/2018] [Accepted: 03/19/2018] [Indexed: 10/27/2022]
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33
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Alraheam IA, Ngoc CN, Wiesen CA, Donovan TE. Five-year success rate of resin-bonded fixed partial dentures: A systematic review. J ESTHET RESTOR DENT 2018; 31:40-50. [DOI: 10.1111/jerd.12431] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 09/11/2018] [Accepted: 09/16/2018] [Indexed: 12/01/2022]
Affiliation(s)
- Islam Abd Alraheam
- Department of Operative Dentistry, School of Dentistry; University of North Carolina; Chapel Hill NC
- Department of Conservative Dentistry; University of Jordan; Amman Jordan
| | - Caroline Nguyen Ngoc
- Department of Restorative Dentistry; Universite de Montreal; Montreal Quebec Canada
| | | | - Terence E. Donovan
- Department of Operative Dentistry; University of North Carolina; Chapel Hill NC
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34
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Tezulas E, Yildiz C, Evren B, Ozkan Y. Clinical procedures, designs, and survival rates of all-ceramic resin-bonded fixed dental prostheses in the anterior region: A systematic review. J ESTHET RESTOR DENT 2018; 30:307-318. [DOI: 10.1111/jerd.12389] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/11/2018] [Accepted: 04/23/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Emre Tezulas
- Research Assistant, Department of Prosthodontics; Faculty of Dentistry, Marmara University; Istanbul Turkey
| | - Coskun Yildiz
- Associate Professor, Department of Prosthodontics; Faculty of Dentistry, Marmara University; Istanbul Turkey
| | - Buket Evren
- Associate Professor, Department of Prosthodontics; Faculty of Dentistry, Marmara University; Istanbul Turkey
| | - Yasemin Ozkan
- Professor & Head, Department of Prosthodontics; Faculty of Dentistry, Marmara University; Istanbul Turkey
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35
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Spitznagel FA, Boldt J, Gierthmuehlen PC. CAD/CAM Ceramic Restorative Materials for Natural Teeth. J Dent Res 2018; 97:1082-1091. [PMID: 29906206 DOI: 10.1177/0022034518779759] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Advances in computer-aided design (CAD) / computer-aided manufacturing (CAM) technologies and their ease of application enabled the development of novel treatment concepts for modern prosthodontics. This recent paradigm shift in fixed prosthodontics from traditional to minimally invasive treatment approaches is evidenced by the clinical long-term success of bonded CAD/CAM glass-ceramic restorations. Today, defect-oriented restorations, such as inlays, onlays, and posterior crowns, are predominately fabricated from glass-ceramics in monolithic application. The variety of CAD/CAM ceramic restorative systems is constantly evolving to meet the increased demands for highly aesthetic, biocompatible, and long-lasting restorations. Recently introduced polymer-infiltrated ceramic network CAD/CAM blocks add innovative treatment options in CAD/CAM chairside 1-visit restorations. The material-specific high-edge stability enables the CAD/CAM machinability of thin restoration margins. Full-contour zirconia restorations are constantly gaining market share at the expense of bilayered systems. Advancements in material science and bonding protocols foster the development of novel material combinations or fabrication techniques of proven high-strength zirconia ceramics. CAD/CAM applications offer a standardized manufacturing process resulting in a reliable, predictable, and economic workflow for individual and complex teeth-supported restorations. More evidence from long-term clinical studies is needed to verify the clinical performance of monolithic polymer-infiltrated ceramic network and zirconia teeth-supported minimally invasive and extensive restorations.
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Affiliation(s)
- F A Spitznagel
- 1 Department of Prosthodontics, School of Dentistry, Heinrich-Heine-University, Düsseldorf, Germany
| | - J Boldt
- 1 Department of Prosthodontics, School of Dentistry, Heinrich-Heine-University, Düsseldorf, Germany
| | - P C Gierthmuehlen
- 1 Department of Prosthodontics, School of Dentistry, Heinrich-Heine-University, Düsseldorf, Germany
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36
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Virdee SS, Lynch CD, Sadaghiani L, Addy LD, Gilmour ASM, Blum IR, Wilson NHF. Contemporary teaching of bridges (fixed partial dentures) in Ireland and United Kingdom dental schools. Br Dent J 2018; 224:741-745. [PMID: 29747193 DOI: 10.1038/sj.bdj.2018.312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2017] [Indexed: 11/09/2022]
Affiliation(s)
- S S Virdee
- Clinical Lecturer & Honorary Specialty Registrar in Restorative Dentistry, School of Dentistry, University of Birmingham
| | - C D Lynch
- Professor/Consultant in Restorative Dentistry, University Dental School & Hospital, University College Cork, Wilton, Cork, Ireland
| | - L Sadaghiani
- Senior Lecturer/Consultant in Restorative Dentistry, School of Dentistry, Heath Park, Cardiff
| | - L D Addy
- Consultant in Restorative Dentistry, School of Dentistry, Heath Park, Cardiff
| | - A S M Gilmour
- Professor/Consultant in Restorative Dentistry, School of Dentistry, Heath Park, Cardiff
| | - I R Blum
- Director, King's College Maurice Wohl Dental Centre,Consultant/Senior Lecturer in Restorative Dentistry, King's College, London
| | - N H F Wilson
- Emeritus Professor of Dentistry, King's College, London
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37
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Ebeid K, Wille S, Salah T, Wahsh M, Zohdy M, Kern M. Evaluation of surface treatments of monolithic zirconia in different sintering stages. J Prosthodont Res 2018; 62:210-217. [DOI: 10.1016/j.jpor.2017.09.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 08/27/2017] [Accepted: 09/13/2017] [Indexed: 11/27/2022]
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38
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Chen J, Cai H, Ren X, Suo L, Pei X, Wan Q. A Systematic Review of the Survival and Complication Rates of All-Ceramic Resin-Bonded Fixed Dental Prostheses. J Prosthodont 2017; 27:535-543. [PMID: 28985448 DOI: 10.1111/jopr.12678] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2017] [Indexed: 02/05/2023] Open
Affiliation(s)
- Junyu Chen
- Department of Prosthodontics, West China Hospital of Stomatology; Sichuan University; Chengdu China
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology; Sichuan University; Chengdu China
| | - He Cai
- Department of Prosthodontics, West China Hospital of Stomatology; Sichuan University; Chengdu China
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology; Sichuan University; Chengdu China
| | - Xiaochun Ren
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology; Sichuan University; Chengdu China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology; Sichuan University; Chengdu China
| | - Lai Suo
- Department of Prosthodontics, West China Hospital of Stomatology; Sichuan University; Chengdu China
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology; Sichuan University; Chengdu China
| | - Xibo Pei
- Department of Prosthodontics, West China Hospital of Stomatology; Sichuan University; Chengdu China
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology; Sichuan University; Chengdu China
| | - Qianbing Wan
- Department of Prosthodontics, West China Hospital of Stomatology; Sichuan University; Chengdu China
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology; Sichuan University; Chengdu China
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39
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Kern M, Passia N, Sasse M, Yazigi C. Ten-year outcome of zirconia ceramic cantilever resin-bonded fixed dental prostheses and the influence of the reasons for missing incisors. J Dent 2017; 65:51-55. [DOI: 10.1016/j.jdent.2017.07.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 06/28/2017] [Accepted: 07/04/2017] [Indexed: 10/19/2022] Open
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40
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Blatz MB, Vonderheide M, Conejo J. The Effect of Resin Bonding on Long-Term Success of High-Strength Ceramics. J Dent Res 2017; 97:132-139. [PMID: 28876966 DOI: 10.1177/0022034517729134] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Digital manufacturing, all-ceramics, and adhesive dentistry are currently the trendiest topics in clinical restorative dentistry. Tooth- and implant-supported fixed restorations from computer-aided design (CAD)/computer-aided manufacturing (CAM)-fabricated high-strength ceramics-namely, alumina and zirconia-are widely accepted as reliable alternatives to traditional metal-ceramic restorations. Most recent developments have focused on high-translucent monolithic full-contour zirconia restorations, which have become extremely popular in a short period of time, due to physical strength, CAD/CAM fabrication, and low cost. However, questions about proper resin bonding protocols have emerged, as they are critical for clinical success of brittle ceramics and treatment options that rely on adhesive bonds, specifically resin-bonded fixed dental prostheses or partial-coverage restorations such as inlays/onlays and veneers. Resin bonding has long been the gold standard for retention and reinforcement of low- to medium-strength silica-based ceramics but requires multiple pretreatment steps of the bonding surfaces, increasing complexity, and technique sensitivity compared to conventional cementation. Here, we critically review and discuss the evidence on resin bonding related to long-term clinical outcomes of tooth- and implant-supported high-strength ceramic restorations. Based on a targeted literature search, clinical long-term studies indicate that porcelain-veneered alumina or zirconia full-coverage crowns and fixed dental prostheses have high long-term survival rates when inserted with conventional cements. However, most of the selected studies recommend resin bonding and suggest even greater success with composite resins or self-adhesive resin cements, especially for implant-supported restorations. High-strength ceramic resin-bonded fixed dental prostheses have high long-term clinical success rates, especially when designed as a cantilever with only 1 retainer. Proper pretreatment of the bonding surfaces and application of primers or composite resins that contain special adhesive monomers are necessary. To date, there are no clinical long-term data on resin bonding of partial-coverage high-strength ceramic or monolithic zirconia restorations.
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Affiliation(s)
- M B Blatz
- 1 Department of Preventive and Restorative Sciences, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
| | - M Vonderheide
- 1 Department of Preventive and Restorative Sciences, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
| | - J Conejo
- 1 Department of Preventive and Restorative Sciences, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
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41
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Rathmann F, Bömicke W, Rammelsberg P, Ohlmann B. Veneered zirconia inlay-retained fixed dental prostheses: 10-Year results from a prospective clinical study. J Dent 2017. [DOI: 10.1016/j.jdent.2017.06.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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42
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Lili Y, Debiao D, Ruoyu N, Deying C, Junling W. [Application of single-retainer all-ceramic resin-bonded fixed partial denture in replacing single anterior tooth]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2017; 35:399-402. [PMID: 28853507 DOI: 10.7518/hxkq.2017.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Objective In this study, we aimed to evaluate the clinical effect of single-retainer all-ceramic resin-bonded fixed partial denture (RBFPD) on the single anterior tooth loss patients. Methods A total of 20 single-retainer all-ceramic RBFPD
were fabricated and evaluated in a two-year follow-up observation. The restorations were examined on the basis of the American Public Health Association (APHA) criteria. Results A total of 20 single-retainer all-ceramic RBFPD achieved class A evaluation after a six-month follow-up observation. One single-retainer all-ceramic RBFPD was classified as class B for secondary caries after a one-year follow-up observation. After a two-year follow-up observation, one single-retainer all-ceramic RBFPD was classified as class B because of secondary caries, and one single-retainer all-ceramic RBFPD was classified as class B because of fracture. Conclusion Single-retainer all-ceramic RBFPD is a promising and optional method in replacing single anterior tooth.
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Affiliation(s)
- Yang Lili
- Dept. of Prosthodontics, School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - Du Debiao
- Bincheng Du's Oral Clinic in Binzhou of Shandong Province, Binzhou 256600, China
| | - Ning Ruoyu
- Dept. of Prosthodontics, School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - Chen Deying
- Dept. of Prosthodontics, School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - Wu Junling
- Dept. of Prosthodontics, School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
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43
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Edelhoff D, Prandtner O, Saeidi Pour R, Wichelhaus A, Liebermann A. Systematic development of esthetics and function in a young patient with maxillary dental aplasia. J ESTHET RESTOR DENT 2017; 29:247-255. [PMID: 28681501 DOI: 10.1111/jerd.12315] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Full-arch rehabilitations in young patients suffering from dental agenesis should compensate for the reduced vertical dimension of occlusion and restore both esthetics and function at minimal biological cost. This requires precise planning and maximum patient compliance during the preprosthetic phase. The pretreatment period with tooth-colored splints promotes a predictable outcome of the final restorations. Clinical considerations: Thanks to better restorative materials and adhesive techniques and increased knowledge of how to preserve sound tooth structures, prosthetic dentistry has increasingly turned toward minimally invasive procedures. The present clinical case documents a minimally/non-invasive maxillary full-arch rehabilitation of an agenesis patient with multiple dental aplasia, primary tooth persistence, and deficits in bone growth. The patient was pretreated with a tooth-colored CAD/CAM polycarbonate splint. Adequate esthetics and function were achieved by two zirconia-based single-wing adhesive fixed dental prostheses to replace the upper lateral incisors, lithium disilicate ceramic partial crowns for the posterior regions, and two feldspathic veneers for the upper central incisors. CONCLUSIONS Non-invasive pretreatment with a removable tooth-colored splint realizes the treatment goal simply and safely, reduces treatment time, increases predictability, and facilitates the transfer of the prototype to the final restorations. New restorative options permit the minimally invasive treatment of such patients. CLINICAL SIGNIFICANCE A pretreatment with a removable tooth-colored splint offers a simple and safe way to define the treatment goal, reduces treatment time, increases predictability, and facilitates the transfer of the results to the final restorations even in complex cases. New restorative options permit minimally invasive treatments of young patients with multiple dental agenesis.
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Affiliation(s)
- D Edelhoff
- Department of Prosthetic Dentistry, School of Dentistry, Ludwig-Maximilians-Universität, Goethestrasse 70, Munich, 80336, Germany
| | - O Prandtner
- Plattform Laboratory, Goethestrasse 47, Munich, 80336, Germany
| | - R Saeidi Pour
- Department of Prosthetic Dentistry, School of Dentistry, Ludwig-Maximilians-Universität, Goethestrasse 70, Munich, 80336, Germany
| | - A Wichelhaus
- Department of Orthodontics, School of Dentistry, Ludwig-Maximilians Universität, Goethestrasse 70, Munich, 80336, Germany
| | - A Liebermann
- Department of Prosthetic Dentistry, School of Dentistry, Ludwig-Maximilians-Universität, Goethestrasse 70, Munich, 80336, Germany
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Messias A, Neto MA, Amaro AM, Nicolau P, Roseiro LM. Effect of round curvature of anterior implant-supported zirconia frameworks: finite element analysis and in vitro study using digital image correlation. Comput Methods Biomech Biomed Engin 2017; 20:1236-1248. [DOI: 10.1080/10255842.2017.1348501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ana Messias
- Department of Dentistry, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
- CEMMPRE, Center for Mechanical Engineering, Materials and Process, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
| | - Maria Augusta Neto
- CEMMPRE, Center for Mechanical Engineering, Materials and Process, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
| | - Ana Martins Amaro
- CEMMPRE, Center for Mechanical Engineering, Materials and Process, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
| | - Pedro Nicolau
- Department of Dentistry, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
- CEMMPRE, Center for Mechanical Engineering, Materials and Process, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
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Spies BC, Pieralli S, Vach K, Kohal RJ. CAD/CAM-fabricated ceramic implant-supported single crowns made from lithium disilicate: Final results of a 5-year prospective cohort study. Clin Implant Dent Relat Res 2017; 19:876-883. [DOI: 10.1111/cid.12508] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 04/05/2017] [Accepted: 05/17/2017] [Indexed: 11/27/2022]
Affiliation(s)
- Benedikt Christopher Spies
- Department of Prosthetic Dentistry; Center for Dental Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg; Germany
| | - Stefano Pieralli
- Department of Prosthetic Dentistry; Center for Dental Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg; Germany
| | - Kirstin Vach
- Medical Center-University of Freiburg; Center for Medical Biometry and Medical Informatics, Institute for Medical Biometry and Statistics; Freiburg Germany
| | - Ralf-Joachim Kohal
- Department of Prosthetic Dentistry; Center for Dental Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg; Germany
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46
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Conejo J, Nueesch R, Vonderheide M, Blatz MB. Clinical Performance of All-Ceramic Dental Restorations. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s40496-017-0132-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Chen C, Chen Y, Lu Z, Qian M, Xie H, Tay FR. The effects of water on degradation of the zirconia-resin bond. J Dent 2017; 64:23-29. [PMID: 28414171 DOI: 10.1016/j.jdent.2017.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 04/07/2017] [Accepted: 04/09/2017] [Indexed: 10/19/2022] Open
Abstract
OBJECTIVES 10-methacryloyloxydecyldihydrogenphosphate (MDP) containing primers improve bonding of yttria-stabilised tetragonal zirconia (Y-TZP) to methacrylate resins. The present study investigated the role played by water in the deterioration of MDP-mediated zirconia-resin bonds. METHODS Grit-blasted Y-TZP plates were conditioned with two MDP primers and bonded with resin for shear bond strength (SBS) testing. Additional bonded plates were aged hydrothermally and compared with unaged Y-TZP after 24h of water-storage or 6 months of water/acid/alkali-storage. The monoclinic phase (m-ZrO2) in different groups was determined by X-ray diffraction. Hydrolytic stability of the coordinate bond between MDP and zirconia in neutral/acid/alkaline environment was analysed using thermodynamic calculations. Microleakage and release of the element phosphorus from MDP-mediated Y-TZP/resin-bonded interfaces were evaluated via methylene blue dye infiltration and inductively coupled plasma-mass spectrometry (ICP-MS). RESULTS Hydrothermal ageing did not significantly alter SBS. Ageing in acidic or neutral medium led to significant decline in SBS. The m-ZrO2 phase increased after hydrothermal ageing but no m-ZrO2 was detected in the water/acid/alkali-aged specimens. A higher equilibrium constant was identified in the MDP-t-ZrO2 complex when compared with the MDP-m-ZrO2 complex. MDP-conditioning failed to prevent infiltration of the methylene blue dye. Phosphorus was detected by ICP-MS from the solutions used for soaking the resin-bonded specimens. CONCLUSIONS Hydrolysis of the coordinate bond between MDP and ZrO2, rather than t→m phase transformation, weakens the bond integrity between MDP-conditioned Y-TZP and methacrylate resin. CLINICAL SIGNIFICANCE Hydrolysis of the coordinate bond between MDP and zirconia is responsible for deterioration of the integrity of the bond between MDP-conditioned Y-TZP and methacrylate resin.
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Affiliation(s)
- C Chen
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Y Chen
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Z Lu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - M Qian
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - H Xie
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.
| | - F R Tay
- Department of Endodontics, The Dental College of Georgia, Augusta University, Augusta, GA, 30912, USA.
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48
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Botelho MG, Dyson JE, Mui TH, Lam WY. Clinical audit of posterior three-unit fixed-movable resin-bonded fixed partial dentures – A retrospective, preliminary clinical investigation. J Dent 2017; 57:26-31. [DOI: 10.1016/j.jdent.2016.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/03/2016] [Accepted: 12/05/2016] [Indexed: 10/20/2022] Open
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49
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Fifteen-year survival of anterior all-ceramic cantilever resin-bonded fixed dental prostheses. J Dent 2017; 56:133-135. [DOI: 10.1016/j.jdent.2016.11.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 11/04/2016] [Accepted: 11/05/2016] [Indexed: 11/19/2022] Open
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50
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Mourshed B, Samran A, Alfagih A, Samran A, Abdulrab S, Kern M. Anterior Cantilever Resin-Bonded Fixed Dental Prostheses: A Review of the Literature. J Prosthodont 2016. [DOI: 10.1111/jopr.12555] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Bilal Mourshed
- Department of Prosthodontics; Al-Farabi Dental College; Riyadh Saudi Arabia
| | - Abdulaziz Samran
- Department of Prosthodontics; Propaedeutics and Dental Materials; School of Dentistry; Christian-Albrechts University; Kiel Germany
- Department of Fixed Prosthodontics; School of Dentistry; Ibb University; Ibb Yemen
- Department of Prosthodontics & Restorative Dental Sciences; School of Dentistry; Dar-Aluloom University; Riyadh Saudi Arabia
| | - Amal Alfagih
- Shiny Centrals Dental Private Center; Riyadh Saudi Arabia
| | - Ahalm Samran
- Shiny Centrals Dental Private Center; Riyadh Saudi Arabia
| | - Saleem Abdulrab
- Department of Restorative Dental Sciences; Al-Farabi Dental College; Riyadh Saudi Arabia
| | - Matthias Kern
- Department of Prosthodontics; Propaedeutics and Dental Materials; School of Dentistry; Christian-Albrechts University; Kiel Germany
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