Cervical margin relocation in indirect adhesive restorations: A literature review.

PURPOSE The aim of this review was to summarize the existing scientific literature investigating on cervical margin relocation technique (CMR) performed prior to the adhesive cementation of the indirect restorations. STUDY SELECTION An electronic search with no date restriction was conducted in the MEDLINE database, accessed through PubMed. The following main keywords were used: "cervical margin relocation", "coronal margin relocation", "deep margin elevation" and "proximal box elevation". RESULTS Seven in vitro studies and 5 clinical reports investigating on CMR are taken into consideration for the present review. The most frequently investigated parameter in almost all of the in vitro studies was the marginal adaptation of the indirect restorations. One study additionally assessed the influence of CMR on the fracture behavior of the restored teeth and one study assessed the bond strength of the indirect composite restoration to the proximal box floor. Clinical reports provided documentation with a detailed description of the treatment protocol. In the current literature no randomized controlled clinical trials or prospective or retrospective clinical studies on CMR technique could be found. CONCLUSIONS On the basis of the reviewed literature, it can be concluded that currently there is no strong scientific evidence that could either support or discourage the use of CMR technique prior to restoration of deep subgingival defects with indirect adhesive restorations. Randomized controlled clinical trials are necessary to provide the reliable evidence on the influence of CMR technique on the clinical performance, especially on the longevity of the restorations and the periodontal health.

[1]  P. Magne,et al.  Interactions between impression materials and immediate dentin sealing. , 2009, The Journal of prosthetic dentistry.

[2]  R. Spreafico,et al.  Current clinical concepts for adhesive cementation of tooth-colored posterior restorations. , 1998, Practical periodontics and aesthetic dentistry : PPAD.

[3]  A. Vichi,et al.  Influence of phosphoric acid etching on microleakage of a self-etch adhesive and a self-adhering composite. , 2012, Australian dental journal.

[4]  R. Frankenberger,et al.  Luting of ceramic inlays in vitro: marginal quality of self-etch and etch-and-rinse adhesives versus self-etch cements. , 2008, Dental materials : official publication of the Academy of Dental Materials.

[5]  B. Jacquot,et al.  In vitro evaluation of microleakage of indirect composite inlays cemented with four luting agents. , 2005, The Journal of prosthetic dentistry.

[6]  J. V. van Dijken,et al.  Nine-year evaluation of a polyacid-modified resin composite/resin composite open sandwich technique in Class II cavities. , 2007, Journal of dentistry.

[7]  R. Spreafico,et al.  Evaluation of the In Vitro Effects of Cervical Marginal Relocation Using Composite Resins on the Marginal Quality of CAD/CAM Crowns. , 2016, Journal of Adhesive Dentistry.

[8]  J. V. van Dijken,et al.  Longevity of Extensive Class II Open-sandwich Restorations with a Resin-modified Glass-ionomer Cement , 1999, Journal of dental research.

[9]  A. Preti,et al.  The success of indirect restorations in posterior teeth: a systematic review of the literature. , 2015, Minerva stomatologica.

[10]  G. Handel,et al.  Influence of proximal box elevation technique on marginal integrity of adhesively luted Cerec inlays , 2016, Clinical Oral Investigations.

[11]  T. Attin,et al.  Influence of a proximal margin elevation technique on marginal adaptation of ceramic inlays. , 2013, Acta odontologica Scandinavica.

[12]  V. Rousson,et al.  Clinical effectiveness of direct class II restorations - a meta-analysis. , 2012, The journal of adhesive dentistry.

[13]  Cecilia Goracci,et al.  Microleakage in class II restorations: open vs closed centripetal build-up technique. , 2010, Operative dentistry.

[14]  J. Maynard,et al.  Surgical crown lengthening: evaluation of the biological width. , 2003, Journal of periodontology.

[15]  S. Majidinia,et al.  Evaluation of the efficacy of flowable composite as lining material on microleakage of composite resin restorations: A systematic review and meta-analysis. , 2016, Quintessence international.

[16]  R. Spreafico,et al.  Deep Margin Elevation: A Paradigm Shift , 2012 .

[17]  Ingber Js,et al.  The "biologic width"--a concept in periodontics and restorative dentistry. , 1977 .

[18]  M. Carrabba,et al.  Microleakage of Class II restorations and microtensile bond strength to dentin of low-shrinkage composites. , 2013, American journal of dentistry.

[19]  C. Frese,et al.  Proximal box elevation with resin composite and the dogma of biological width: clinical R2-technique and critical review. , 2014, Operative dentistry.

[20]  D. Pashley,et al.  Clinical considerations of microleakage. , 1990, Journal of endodontics.

[21]  M. Ferrari,et al.  The science of bonding: from first to sixth generation. , 2000, Journal of the American Dental Association.

[22]  M. Özcan,et al.  Survival Rate of Resin and Ceramic Inlays, Onlays, and Overlays , 2016, Journal of dental research.

[23]  É. Araújo,et al.  Reestablishing biologic width with forced eruption. , 2003, Quintessence international.

[24]  V. Rousson,et al.  Meta-Analysis of the Influence of Bonding Parameters on the Clinical Outcome of Tooth-colored Cervical Restorations. , 2015, The journal of adhesive dentistry.

[25]  B. Uludag,et al.  Microleakage of ceramic inlays luted with different resin cements and dentin adhesives. , 2009, The Journal of prosthetic dentistry.

[26]  R. Frankenberger,et al.  Effect of proximal box elevation with resin composite on marginal quality of resin composite inlays in vitro. , 2012, Journal of dentistry.

[27]  S. Carson,et al.  Rubber dam may increase the survival time of dental restorations , 2017, Evidence-Based Dentistry.

[28]  L. Ceballos,et al.  Influence of proximal box elevation on bond strength of composite inlays , 2016, Clinical Oral Investigations.

[29]  J. Murray,et al.  A clinical trial of the glass-ionomer cement-composite resin "sandwich" technique in Class II cavities in permanent premolar and molar teeth. , 1990, Quintessence international.

[30]  M. Veneziani.  Adhesive restorations in the posterior area with subgingival cervical margins: new classification and differentiated treatment approach. , 2010, The European journal of esthetic dentistry : official journal of the European Academy of Esthetic Dentistry.

[31]  Lorenzo Breschi,et al.  Dental adhesion review: aging and stability of the bonded interface. , 2008, Dental materials : official publication of the Academy of Dental Materials.

[32]  M V Cardoso,et al.  Current aspects on bonding effectiveness and stability in adhesive dentistry. , 2011, Australian dental journal.

[33]  A. Kielbassa,et al.  Restoring proximal cavities of molars using the proximal box elevation technique: Systematic review and report of a case. , 2015, Quintessence international.

[34]  Robert Eber,et al.  Interactions between the gingiva and the margin of restorations. , 2003, Journal of clinical periodontology.

[35]  Massimo Frascaria,et al.  Adhesive Cementation of Indirect Composite Inlays and Onlays: A Literature Review. , 2015, Compendium of continuing education in dentistry.

[36]  H. Löe,et al.  The influence of margins of restorations on the periodontal tissues over 26 years , 2001 .

[37]  J. Perdigão.  Dentin bonding as a function of dentin structure. , 2002, Dental clinics of North America.

[38]  R. Spreafico,et al.  Evidence-based concepts and procedures for bonded inlays and onlays. Part I. Historical perspectives and clinical rationale for a biosubstitutive approach. , 2015, The international journal of esthetic dentistry.

[39]  P. Lambrechts,et al.  Technique-sensitivity of contemporary adhesives. , 2005, Dental materials journal.

[40]  R. Frankenberger,et al.  Effect of proximal box elevation with resin composite on marginal quality of ceramic inlays in vitro , 2012, Clinical Oral Investigations.

[41]  T. Attin,et al.  Influence of proximal box elevation on the marginal quality and fracture behavior of root-filled molars restored with CAD/CAM ceramic or composite onlays , 2015, Clinical Oral Investigations.

[42]  I. Krejci,et al.  Evidence-based concepts and procedures for bonded inlays and onlays. Part II. Guidelines for cavity preparation and restoration fabrication. , 2015, The international journal of esthetic dentistry.