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Hirata R, Hilgert LA, Sampaio CS, de Andrade OS, Melo G, Ritter AV. Quo vadis, esthetic dentistry? Part II: Composite resin overtreatment and social media appeal. J ESTHET RESTOR DENT 2024; 36:32-36. [PMID: 38142060 DOI: 10.1111/jerd.13162] [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: 09/15/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 12/25/2023]
Abstract
OBJECTIVES This article presents case reports highlighting over-treatments with resin composites, often misconceived as minimally invasive procedures. CLINICAL CONSIDERATIONS Tooth-colored restorative materials, such as ceramics and composites, have found widespread application to correct problems related to tooth color, shape, and alignment. When composite resin is used, these procedures can be done in a very conservative, cost-effective, and timely fashion. However, it is noteworthy that contemporary dental esthetic expectations are based on standards propagated by social media and other marketing and communications platforms. The abuse of and addiction to social media impacts can lead to unrealistic esthetic expectations and standards for both patients and dentists. CONCLUSIONS After a critical discussion on ceramic veneers published in part I of this 2-part series, this article directs attention towards what has become a trendy fashion, i.e., the use of direct composite resins as "non-prep" veneers in clinical situations that arguably required no restorative intervention at all. We further explore how social media influences the decision-making processes of both professionals and patients.
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Affiliation(s)
- Ronaldo Hirata
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York City, New York, USA
| | - Leandro Augusto Hilgert
- Department of Operative Dentistry, School of Health Sciences, University of Brasília, Brasilia, Brazil
| | - Camila S Sampaio
- Advanced Clinical Fellowship Programs in Esthetic, and Operative and Digital Dentistry, New York University College of Dentistry, New York City, New York, USA
| | | | - Ginger Melo
- Anatomy and Sculpture and Restorative Dentistry of UNIVAG, Várzea Grande, MT, Brazil
| | - André V Ritter
- University of Washington School of Dentistry, Seattle, Washington, USA
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Mohammed Dhaifullah EH, Zarnoog MS, Muqaybil MA, Alrogi AF, Albugami SM. Patient Awareness of Soft-Tissue Irritants After Placement of Porcelain Laminate Veneers. Cureus 2022; 14:e30434. [DOI: 10.7759/cureus.30434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2022] [Indexed: 11/07/2022] Open
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Alothman Y, Bamasoud MS. The Success of Dental Veneers According To Preparation Design and Material Type. Open Access Maced J Med Sci 2018; 6:2402-2408. [PMID: 30607201 PMCID: PMC6311473 DOI: 10.3889/oamjms.2018.353] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/03/2018] [Accepted: 11/04/2018] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Due to their high aesthetic outcome and long-term predictability, laminate veneers have become a common restorative procedure for anterior teeth. However, because of the variety in the preparation designs and the material types, the clinician faces a dilemma of which approach to use. AIM: To compare the survival rate of dental veneers according to different preparation designs and different material types. The sub-aim is to reach a favourable preparation design and material based on scientific evidence. METHODS: Comprehensive electronic search of the dental literature via PUBMED, MEDLINE and Scopus databases was performed using the following keywords: “porcelain veneers”, “composite veneers”, “all-ceramic veneers”, “success of porcelain veneers”, “preparation design”, “preparation geometry”, “patient’s satisfaction”. Additionally, references from the selected studies and reviews were searched for more information. RESULTS: Under the limitations of the available literature, the clinician preference is the decisive factor for choosing the preparation design. Nonetheless, incisal overlap preparation seems to have the most predictable outcome from all the preparation designs. CONCLUSION: Porcelain veneers show excellent aesthetic results and predictable longevity of the treatment, while composite veneers can be considered as a good conservative option, but with less durability.
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Bin-Shuwaish MS. Ceramic Veneers for Esthetic Restoration of Retained Primary Teeth: A 4-year Follow-up Case Report. Oper Dent 2017; 42:133-142. [DOI: 10.2341/15-363-s] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
SUMMARYRetained primary teeth in the smile zone can cause patient dissatisfaction, especially if associated with malposition of teeth. Orthodontic and prosthetic treatment options to treat the situation may not be accepted by some patients. Therefore, these patients tend to maintain their primary teeth and seek different esthetic options. Ceramic veneers may provide an esthetic treatment option to restore these teeth. However, the survival rates of ceramic restorations in such cases have not yet been established. This case report provides a step-by-step clinical description of the use of ceramic veneers for the restoration of retained primary canines and mild teeth malalignment, with a 4-year follow-up report, in a 28-year-old female patient. During restorative treatment, an effort was made to maintain the occlusion in group function to minimize stress and eliminate destructive forces on the retained primary teeth. After 4 years of function, the patient was still satisfied with the provided treatment.
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Affiliation(s)
- MS Bin-Shuwaish
- Mohammed S. Bin-Shuwaish, BDS, AEGD, MS, ABOD, assistant professor and consultant, Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudia Arabia
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Wakiaga JM, Brunton P, Silikas N, Glenny A, Gopakumar A, Boyle L. WITHDRAWN: Direct versus indirect veneer restorations for intrinsic dental stains. Cochrane Database Syst Rev 2015; 2015:CD004347. [PMID: 26630667 PMCID: PMC10663711 DOI: 10.1002/14651858.cd004347.pub3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The Cochrane Oral Health Group withdrew this review as of Issue 12, 2015. The review is out of date and does not meet current Cochrane methodological standards. The editorial group responsible for this previously published document have withdrawn it from publication.
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Affiliation(s)
- John M Wakiaga
- School of Dentistry, The University of ManchesterCochrane Oral Health GroupCoupland III Building, Oxford RoadManchesterUKM13 9PL
| | - Paul Brunton
- Leeds Dental InstituteFixed & Removable ProsthodonticsClarendon WayLeedsUKLS2 9LU
| | - Nick Silikas
- School of Dentistry, The University of ManchesterUnit of Biomaterials ScienceHigher Cambridge StreetManchesterUKM15 6FH
| | - Anne‐Marie Glenny
- School of Dentistry, The University of ManchesterCochrane Oral Health GroupCoupland III Building, Oxford RoadManchesterUKM13 9PL
| | - Ashish Gopakumar
- The University of LiverpoolDepartment of Restorative Dentistry, School of Dental SciencesRoom 303, Liverpool University Dental HospitalPembroke PlaceLiverpoolUKL3 5PS
| | - Liam Boyle
- The University of LiverpoolDepartment of Restorative Dentistry, School of Dental SciencesRoom 303, Liverpool University Dental HospitalPembroke PlaceLiverpoolUKL3 5PS
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Esthetic Rehabilitation of the Smile with No-Prep Porcelain Laminates and Partial Veneers. Case Rep Dent 2015; 2015:452765. [PMID: 26568893 PMCID: PMC4628695 DOI: 10.1155/2015/452765] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 09/29/2015] [Accepted: 09/29/2015] [Indexed: 11/17/2022] Open
Abstract
Rehabilitation of patients with anterior conoid teeth may present a challenge for the clinician, especially when trying to mimic the nature with composite resins. This clinical report exemplifies how a patient with conoid upper lateral incisors was rehabilitated with minimally invasive adhesive restorations. Following diagnostic wax-up and cosmetic mock-up, no-prep veneers and ceramic fragments (partial veneers) were constructed with feldspathic porcelain. This restorative material presents excellent reproduction of the optical properties of the dental structure, especially at minimal thicknesses. In this paper, the details about the treatment are described. A very pleasing outcome was achieved, confirming that minimally invasive adhesive restorations are an excellent option for situations in which the dental elements are healthy, and can be modified exclusively by adding material and the patient does not want to suffer any wear on the teeth.
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Trushkowsky RD, Alsadah Z, Brea LM, Oquendo A. The Interplay of Orthodontics, Periodontics, and Restorative Dentistry to Achieve Aesthetic and Functional Success. Dent Clin North Am 2015; 59:689-702. [PMID: 26140975 DOI: 10.1016/j.cden.2015.03.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Previously dentists focused on repair and maintenance of function. However, the emphasis of many patients and dentists is now on esthetics. Often there is a need for the disciplines of orthodontics, periodontics, restorative dentistry, and maxillofacial surgery to work together in order to achieve optimum results. Currently the sequencing planning process begins with esthetics and then function, structure, and ultimately biology.
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Affiliation(s)
- Richard D Trushkowsky
- Advanced Program for International Dentists in Aesthetic Dentistry, Department of Cariology and Comprehensive Care, New York University College of Dentistry, 345 East 24th Street, Clinic 7W, New York, NY 10010, USA.
| | - Zainab Alsadah
- Advanced Program for International Dentists in Aesthetic Dentistry, New York University College of Dentistry, 345 East 24th Street, Clinic 7W, New York, NY 10010, USA
| | - Luis M Brea
- Advanced Program for International Dentists in Aesthetic Dentistry, Department of Cariology and Comprehensive Care, New York University College of Dentistry, 345 East 24th Street, Clinic 7W, New York, NY 10010, USA
| | - Anabella Oquendo
- Advanced Program for International Dentists in Aesthetic Dentistry, Department of Cariology and Comprehensive Care, New York University College of Dentistry, 345 East 24th Street, Clinic 7W, New York, NY 10010, USA
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Grasso G, Belluz M, Camandona M, Zanirato M, Garattini G. Riabilitazione estetica e funzionale di una paziente adulta in III Classe borderline: sinergie fra trattamento ortodontico e restaurativo. DENTAL CADMOS 2013. [DOI: 10.1016/s0011-8524(13)70054-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Heintze S, Forjanic M, Ohmiti K, Rousson V. Surface deterioration of dental materials after simulated toothbrushing in relation to brushing time and load. Dent Mater 2010; 26:306-19. [DOI: 10.1016/j.dental.2009.11.152] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Accepted: 11/24/2009] [Indexed: 10/20/2022]
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Chander NG, Padmanabhan TV. Finite Element Stress Analysis of Diastema Closure with Ceramic Laminate Veneers. J Prosthodont 2009; 18:577-81. [DOI: 10.1111/j.1532-849x.2009.00490.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Nalbandian S, Millar BJ. The effect of veneers on cosmetic improvement. Br Dent J 2009; 207:E3; discussion 72-3. [DOI: 10.1038/sj.bdj.2009.609] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2009] [Indexed: 11/09/2022]
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Color stability of dental ceramics submitted to artificial accelerated aging after repeated firings. J Prosthet Dent 2009; 101:13-8. [DOI: 10.1016/s0022-3913(08)60282-6] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Thomason JM, Heydecke G, Feine JS, Ellis JS. How do patients perceive the benefit of reconstructive dentistry with regard to oral health-related quality of life and patient satisfaction? A systematic review. Clin Oral Implants Res 2007; 18 Suppl 3:168-88. [PMID: 17594380 DOI: 10.1111/j.1600-0501.2007.01461.x] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Reconstructive dentistry encompasses an enormous range of treatment modalities from the restoration of single teeth to the reconstruction of the whole dentoalveolar complex in edentulous patients. Some treatment modalities have been assessed in terms of quality-of-life (QoL) outcomes and satisfaction OBJECTIVES The aim of the present investigation was to search and review studies published between 1996 and 2006 in which the impact of the treatment was measured in terms of QoL outcome, ideally, oral health-related quality of life (OHRQoL). Patient satisfaction was also accepted as an outcome. MATERIALS AND METHODS The primary search engine used was NICB PubMed based on MeSH headings. Hand searching of the cited references in the included papers identified a number of additional studies. The primary focus of the search was to link treatment to QoL outcomes. RESULTS The majority of included studies involved the treatment of edentulous patients, particularly the mandible. The preponderance of the studies comparing conventional dentures (CDs) and implant-supported overdentures (IODs) were randomized-controlled trials (N = 18). There was compelling evidence that patients were more satisfied with IODs than CDs. There was strong evidence that OHRQoL can be significantly improved using IODs. Evidence suggesting that one retention system is superior to another needs further clarification. Although high satisfaction ratings have been reported for maxillary implant prostheses, the overall ratings given to the maxillary implant prostheses were not significantly greater than for CDs. There was only sparce information regarding QoL or satisfaction outcomes for the majority of other forms of reconstructive dentistry. CONCLUSION Apart from the restoration of the edentulous mandible with IODs or CD, where there is an accumulating body of evidence on the effect of treatment choice, there are many procedures for which there are little or no such data at all. As yet, the entire range of reconstructive treatment has witnessed insufficient investigations relating treatment to its effect on QoL or satisfaction. This is an area that needs to be expanded as a way of quantifying the effect of treatment choices.
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Affiliation(s)
- J Mark Thomason
- School of Dental Sciences, Newcastle University, Newcastle upon Tyne, UK.
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Simeone P, De Paoli C, De Paoli S, Leofreddi G, Sgrò S. Interdisciplinary Treatment Planning for Single-Tooth Restorations in the Esthetic Zone. J ESTHET RESTOR DENT 2007; 19:79-88; discussion 89. [PMID: 17374112 DOI: 10.1111/j.1708-8240.2007.00071.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
UNLABELLED This article presents a conservative approach for restoring single anterior teeth in patients with congenitally missing maxillary lateral incisors, emphasizing the importance of interdisciplinary treatment planning. Minor orthodontic treatment was necessary to create the space for implant placement. Once the fixtures were inserted and the temporary abutments connected to the implants, the provisionals were relined with the use of a repositioning stone key. From the diagnostic wax-up, it was decided that in order to attain a satisfying final esthetic outcome, it was necessary to also restore the distal aspect of the central incisors and the right first premolar for anatomical and functional reasons. Finally, after having screwed the abutments on the implants, inducing a torque of 20 Ncm, the metal-ceramic restorations were cemented with temporary cement. CLINICAL SIGNIFICANCE This article presents a systematic approach for restoring anterior teeth in the esthetic zone using a diagnostic additive wax-up and an interdisciplinary approach to optimize the final esthetic outcome.
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Stappert CFJ, Ozden U, Gerds T, Strub JR. Longevity and failure load of ceramic veneers with different preparation designs after exposure to masticatory simulation. J Prosthet Dent 2005; 94:132-9. [PMID: 16046967 DOI: 10.1016/j.prosdent.2005.05.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
STATEMENT OF PROBLEM Laminate veneers are widely used in the management of unesthetic anterior teeth. However, limited information is available regarding the influence of preparation design on longevity of ceramic veneers. PURPOSE This study evaluated the influence of preparation design on longevity and failure load of ceramic veneers bonded to human maxillary central incisors after cyclic loading and thermal cycling in a dual-axis masticatory simulator. MATERIAL AND METHODS Sixty-four caries-free maxillary central incisors were divided into 4 groups (n = 16). The control group remained unprepared (NP). For Group WP, a window preparation was made. Specimens in Group IOP were prepared with an incisal overlap of 2 mm without palatal chamfer. For Group CVP, specimens were prepared with a complete-veneer design of 3-mm incisal reduction and 2-mm palatal extension. Forty-eight IPS Empress 1 ceramic veneers were bonded adhesively with dual-polymerizing composite (Variolink II). All specimens were subjected to cyclic mechanical loading (1.2 million cycles, cycle frequency 1.3 Hz, invariable palatal load 49 N) and thermal cycling (5 degrees C-55 degrees C, dwell time 60 seconds, 5500 cycles) in a masticatory simulator. Failure was defined by bulk fracture of a specimen. Subcritical crack patterns were observed. Surviving specimens were loaded in a universal testing machine until fracture. The failure-load values (N) (1.5 mm/min crosshead speed) were automatically recorded by controlling software. Statistical analysis of data was performed by Kruskal-Wallis analysis of variance (alpha = .05) and pairwise Wilcoxon rank sum tests (alpha = .05). RESULTS Three specimens from group NP, 1 specimen each from the WP and CVP groups, and 2 specimens from group IOP fractured during fatigue. After 1.2 million cycles, the highest crack rates were observed for complete veneers and originated in the palatal concavity extending to the facial surface. The median (interquartile range = x .25 - x .75 ) failure loads (N) were as follows: NP 713.3 (404.4-777.1), WP 549.5 (477.5-597.7), IOP 695.3 (400.0-804.6), and CVP 519.2 (406.1-732.9). No significant differences in longevity and failure load were demonstrated between natural teeth and teeth restored with ceramic veneers ( P = .555). CONCLUSION Maxillary teeth restored with the 3 types of IPS Empress 1 veneers showed fracture resistance similar to that of unprepared incisors ( P = .555).
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Affiliation(s)
- Christian F J Stappert
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, NY 100100, USA.
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Stappert CFJ, Stathopoulou N, Gerds T, Strub JR. Survival rate and fracture strength of maxillary incisors, restored with different kinds of full veneers. J Oral Rehabil 2005; 32:266-72. [PMID: 15790381 DOI: 10.1111/j.1365-2842.2004.01401.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
This in vitro study evaluated the survival rate and fracture strength of different kinds of ceramic full veneers, fabricated with a new experimental press ceramic (EPC VP2117/TC2, Ivoclar-Vivadent AG, Schaan, Liechtenstein). Eighty, caries-free human maxillary central incisors were used as abutments and were randomly divided into one control group and four test-groups of 16 samples each. In group A, unprepared teeth served as control. In the test groups, four different types of full veneer preparations were performed. In test groups B/C, the preparation was maintained in enamel and the contact point was on the tooth/on the veneer, respectively. In test groups D/E, the preparation was extended into dentin and the contact point was on the tooth/on the veneer, respectively. All veneers were adhesively luted using Variolink II (Ivoclar-Vivadent AG). Then, the samples were exposed to the artificial mouth for 1.2 million chewing cycles (49 N). After exposure in the artificial mouth, a survival rate of the abutment teeth of 81-100% was reported among the different groups, but was not significantly different between the groups. However, no failures of the ceramic materials could be recognized. The median fracture strength of group A was 713.3 N, of group B 647.1 N, of group C 594.8 N, of group D 483.8 N and of group E 502.6 N. Among the different groups no significant difference was found. All mean values obtained were within the limits of clinical acceptance, indicating further clinical investigations on full veneers made out of the EPC.
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Affiliation(s)
- C F J Stappert
- Department of Prosthodontics, Faculty of Dentistry, Albert-Ludwigs-University, 79106 Freiburg, Germany.
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Wakiaga J, Brunton P, Silikas N, Glenny AM. Direct versus indirect veneer restorations for intrinsic dental stains. Cochrane Database Syst Rev 2004:CD004347. [PMID: 14974066 DOI: 10.1002/14651858.cd004347.pub2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Patients with discoloured teeth frequently present to the dentist requesting restorations designed to improve their appearance. For teeth that are sound, this might include the use of a veneer restoration. The veneer acts as a thin layer of a material covering the labial surface of a tooth and can be applied directly to the tooth, or by using indirect methods. OBJECTIVES To examine the effectiveness of direct versus indirect laminate veneer restorations. SEARCH STRATEGY The following electronic databases were searched: The Cochrane Oral Health Group's Trials Register, The Cochrane Central Register of Controlled Trials (CENTRAL), (The Cochrane Library Issue 3, 2002), MEDLINE (1980 to 19/11/2002) and EMBASE (1980 to 19/11/2002). There was no restriction on language. SELECTION CRITERIA All randomised controlled trials (RCTs) of participants with permanent anterior teeth suitable for restorations using laminate veneers, comparing direct (different composite materials) and indirect techniques for making dental veneers. The indirect restorations may be either composite or porcelain. The primary outcome was restoration failure. DATA COLLECTION AND ANALYSIS Assessment of relevance and validity and data extraction were conducted in triplicate. Authors of the primary studies were contacted to provide additional information as necessary. MAIN RESULTS Six full publications were screened as being potentially relevant to the review, only one trial was found to meet the review's inclusion criteria. Although the trial met the review's inclusion criteria with regard to participant characteristics, interventions and outcomes assessed, problems with the reporting of the data prevented any statistical analysis of the results. REVIEWER'S CONCLUSIONS There is no reliable evidence to show a benefit of one type of veneer restoration (direct or indirect) over the other with regard to the longevity of the restoration.
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Affiliation(s)
- J Wakiaga
- Department of Biomaterials Science, University Dental Hospital of Manchester, Higher Cambridge Street, Manchester, UK, M15 6FH
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Czochrowska EM, Stenvik A, Zachrisson BU. The esthetic outcome of autotransplanted premolars replacing maxillary incisors. Dent Traumatol 2002; 18:237-45. [PMID: 12427198 DOI: 10.1034/j.1600-9657.2002.00094.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Autotransplantation of developing premolars to replace maxillary incisors has been documented to provide physiologically sound results, but comprehensive studies of the esthetic outcome have not been made previously. In order to assess the applicability of this approach and to identify factors important for planning of treatment, 22 autotransplanted premolars reshaped to incisor morphology were compared to their natural, contralateral maxillary incisors by scoring of features considered important for esthetics (color, soft tissue appearance, tooth morphology, and position). The sum of scores for each feature was used to place the reshaped transplant in one of three categories - Match, Deviate, Mismatch. The 22 patients were asked to fill in a questionnaire which addressed the same features that were examined professionally, and the responses were categorized as either Satisfied, Acceptable, or Dissatisfied. Eleven of the 22 patients had received orthodontic treatment with fixed appliances following the transplantation. Most of the transplanted premolars matched the contralateral incisor, and the majority of patients were satisfied with the appearance of the transplant. Fourteen percentage of the transplants were categorized as Mismatch and 18% of patients reported dissatisfaction. The distribution in categories assessed professionally and by the patients was not significantly different. The color and gingival width of the transplanted tooth were scored as different from the natural incisor in about half of the bilateral comparisons. For those teeth categorized professionally as Mismatch and by patients as Dissatisfied, a potential for esthetic improvement could be identified, as allocation to these categories was primarily due to suboptimal positioning and restorative build-up of the transplant. Inter-disciplinary planning is important for successful esthetic results.
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Abstract
OBJECTIVES Porcelain veneers are steadily increasing in popularity among today's dental practitioners for conservative restoration of unaesthetic anterior teeth. As with any new procedure, in vitro and in vivo investigations are required to assess the ultimate clinical efficacy of these restorations. The current literature was therefore reviewed in search for the most important parameters determining the long-term success of porcelain veneers. DATA SOURCES Laboratory studies focusing on parameters in prediction of the clinical efficacy of porcelain veneers such as the tooth preparation for porcelain veneers, the selection and type of the adhesive system, the quality of marginal adaptation, the resistance against microleakage, the periodontal response, and the aesthetic characteristics of the restorations have been reviewed. The clinical relevance of these parameters was then determined by reviewing the results of short and medium to long-term in vivo studies involving porcelain veneers performed during the last 10 years. CONCLUSIONS The adhesive porcelain veneer complex has been proven to be a very strong complex in vitro and in vivo. An optimal bonded restoration was achieved especially if the preparation was located completely in enamel, if correct adhesive treatment procedures were carried out and if a suitable luting composite was selected. The maintenance of aesthetics of porcelain veneers in the medium to long term was excellent, patient satisfaction was high and porcelain veneers had no adverse effects on gingival health inpatients with an optimal oral hygiene. Major shortcomings of the porcelain veneer system were described as a relatively large marginal discrepancy, and an insufficient wear resistance of the luting composite. Although these shortcomings had no direct impact on the clinical success of porcelain veneers in the medium term, their influence on the overall clinical performance in the long term is still unknown and therefore needs further study.
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Affiliation(s)
- M Peumans
- Department of Operative Dentistry and Dental Materials, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Catholic University of Leuven, Belgium
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Magne P, Douglas WH. Rationalization of esthetic restorative dentistry based on biomimetics. JOURNAL OF ESTHETIC DENTISTRY 1999; 11:5-15. [PMID: 10337285 DOI: 10.1111/j.1708-8240.1999.tb00371.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
UNLABELLED The exponential progressivism that characterizes the current decade often comes with substantial financial implications. Dental care is not spared by this phenomenon. However, new generations of concepts emerging from biomimetics provide the operator with the ability to restore the biomechanical, structural, and esthetic integrity of teeth. The development of adhesion and the evolution of porcelain veneers constitute striking examples of this nascent process. Indications for bonding porcelain are extending to more perilous situations (crown-fractured incisors, nonvital teeth), resulting in considerable improvements, comprising both the medical-biologic aspect (economy of sound tissues and maintenance of tooth vitality) and the socioeconomical context (decrease of costs compared to traditional and more invasive prosthetic treatments). CLINICAL SIGNIFICANCE In the bonded porcelain veneer and its extensions, restorative dentistry has found new solutions for the anterior segment that balance the need for functional and esthetic reconstruction. The optimal stiffness of porcelain in thin section, the ideal surface characteristics, and the biomechanical continuum achieved through high performance bonding mean the crown of the tooth as a whole can support incisal or masticatory function. By the same token, the conduction of optical effects from within the tooth combined with the ideal surface features of the porcelain veneer make this restorative approach the ultimate in esthetic satisfaction, for both the practitioner and the patient.
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Affiliation(s)
- P Magne
- Minnesota Dental Research Center for Biomaterials and Biomechanics Department of Oral Science, School of Dentistry, University of Minnesota, Minneapolis, USA
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Meijering AC, Peters MC, DeLong R, Pintado MR, Creugers NH. Dimensional changes during veneering procedures on discoloured teeth. J Dent 1998; 26:569-76. [PMID: 9754745 DOI: 10.1016/s0300-5712(97)00038-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES The aim of the study was to determine the dimensional changes of teeth when veneering procedures are involved. METHODS Fifteen discoloured central incisors were selected from a group of 180 veneer restorations (VRs) composed of three different types of materials (direct resin composite, indirect resin composite and porcelain). Impressions and dies were made before treatment, after preparation and after placement and finishing the restoration. Contact stylus profilometry and subsequent analysis of the 3-D surface images provided quantitative data of the differences between the various treatment phases. RESULTS The preparation reduction was the most for indirect resin composite VRs and the least for direct resin composite VRs. All veneer restorations showed nearly the same thickness and dimensional change after treatment, except one, which resulted in an additional increase of volume of the tooth. CONCLUSION From the results of this study it is concluded that the dimensions of a discoloured tooth treated with a veneer restoration unintentionally increased, resulting in overcontour.
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Affiliation(s)
- A C Meijering
- Department of Occlusal Reconstruction and Oral Function, University of Nijmegen, The Netherlands.
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