P. Petersen, The World Oral Health Report 2003: continuous improvement of oral health in the 21st century - the approach of the WHO Global Oral Health Programme, Community Dentistry and Oral Epidemiology, vol.15, issue.s1, 2003.
DOI : 10.1161/01.CIR.0000051456.68470.C8

R. Bagramian, F. Garcia-godoy, and A. Volpe, The global increase in dental caries. A pending public health crisis, Am J Dent, vol.22, pp.3-8, 2009.

. Bio-intelligence-service, Study on the Potential for Reducing Mercury Pollution from Dental Amalgam and Batteries. Paris: BIO Intelligence Service: Final report prepared for the European Commission -DG ENV, 2012.

D. Edelhoff and J. Sorensen, Tooth structure removal associated with various preparation designs for posterior teeth, Int J Periodontics Restorative Dent, vol.22, pp.241-249, 2002.

S. Mcgill and J. Holmes, The 7/8 Crown: A Lost Art, Operative Dentistry, vol.37, issue.5, pp.453-457, 2012.
DOI : 10.2341/11-402-T

X. Chen, T. Chadwick, R. Wilson, R. Hill, and M. Cattell, Crystallization and flexural strength optimization of fine-grained leucite glass-ceramics for dentistry, Dental Materials, vol.27, issue.11, pp.1153-1161, 2011.
DOI : 10.1016/j.dental.2011.08.009

W. Lin, C. Ercoli, C. Feng, and D. Morton, The Effect of Core Material, Veneering Porcelain, and Fabrication Technique on the Biaxial Flexural Strength and Weibull Analysis of Selected Dental Ceramics, Journal of Prosthodontics, vol.105, issue.5, pp.353-362, 2012.
DOI : 10.1111/j.1532-849X.2012.00845.x

J. Drummond, Degradation, Fatigue, and Failure of Resin Dental Composite Materials, Journal of Dental Research, vol.87, issue.8, pp.710-719, 2008.
DOI : 10.1177/154405910808700802

R. Ansong, F. B. Chung, K. Mancl, L. Ishibe, M. Raigrodski et al., Fracture toughness of heat-pressed and layered ceramics, The Journal of Prosthetic Dentistry, vol.109, issue.4, pp.234-240, 2013.
DOI : 10.1016/S0022-3913(13)60051-7

P. Magne and U. Belser, Porcelain versus composite inlays/onlays: effects of mechanical loads on stress distribution, adhesion, and crown flexure

K. Yamanel, A. Caglar, K. Gulsahi, and U. Ozden, Effects of different ceramic and composite materials on stress distribution in inlay and onlay cavities: 3-D finite element analysis, Dental Materials Journal, vol.28, issue.6, pp.661-670, 2009.
DOI : 10.4012/dmj.28.661

W. Mormann, B. Stawarczyk, A. Ender, B. Sener, T. Attin et al., Wear characteristics of current aesthetic dental restorative CAD/CAM materials: Two-body wear, gloss retention, roughness and Martens hardness, Journal of the Mechanical Behavior of Biomedical Materials, vol.20, pp.113-125, 2013.
DOI : 10.1016/j.jmbbm.2013.01.003

S. Gladys, B. Van-meerbeek, S. Inokoshi, G. Willems, M. Braem et al., Clinical and semiquantitative marginal analysis of four tooth-coloured inlay systems at 3 years, Journal of Dentistry, vol.23, issue.6, pp.329-338, 1995.
DOI : 10.1016/0300-5712(95)98768-X

N. Krämer and R. Frankenberger, Leucite-reinforced glass ceramic inlays after six years: wear of luting composites, Oper Dent, vol.25, pp.466-472, 2000.

H. Darmani, A. Hiyasat, and M. Milhem, Cytotoxicity of dental composites and their leached components, Quintessence Int, vol.38, pp.789-795, 2007.

J. Durner, W. Spahl, J. Zaspel, H. Schweikl, R. Hickel et al., Eluted substances from unpolymerized and polymerized dental restorative materials and their Nernst partition coefficient, Dental Materials, vol.26, issue.1, pp.91-99, 2010.
DOI : 10.1016/j.dental.2009.08.014

S. John and K. , Biocompatibility of Dental Materials, Dental Clinics of North America, vol.51, issue.3, pp.747-760, 2007.
DOI : 10.1016/j.cden.2007.03.003

J. Wataha, F. Rueggeberg, C. Lapp, J. Lewis, P. Lockwood et al., In vitro cytotoxicity of resin-containing restorative materials after aging in artificial saliva, Clinical Oral Investigations, vol.3, issue.3, pp.144-149, 1999.
DOI : 10.1007/s007840050093

A. Bakopoulou, I. Triviai, A. Tsiftsoglou, and P. Garefis, In vitro assessment of cytotoxicity of resin-based dental restorative materials on WEHI 13 var fibroblasts, Int J Prosthodont, vol.19, pp.13-16, 2006.

J. Manhart, A. Scheibenbogen-fuchsbrunner, H. Chen, and R. Hickel, A 2-year clinical study of composite and ceramic inlays, Clinical Oral Investigations, vol.4, issue.4, pp.192-198, 2000.
DOI : 10.1007/s007840000086

J. Manhart, H. Chen, P. Neuerer, A. Scheibenbogen-fuchsbrunner, and R. Hickel, Three-year clinical evaluation of composite and ceramic inlays

P. Magne and A. Knezevic, Simulated fatigue resistance of composite resin versus porcelain CAD/CAM overlay restorations on endodontically treated molars, Quintessence Int, vol.40, pp.125-133, 2009.

P. Magne and A. Knezevic, Influence of overlay restorative materials and load cusps on the fatigue resistance of endodontically treated molars, Quintessence Int, vol.40, pp.729-737, 2009.

R. Frankenberger, C. Reinelt, A. Petschelt, and N. Krämer, Operator vs. material influence on clinical outcome of bonded ceramic inlays, Dental Materials, vol.25, issue.8, pp.960-968, 2009.
DOI : 10.1016/j.dental.2009.02.002

D. Fasbinder, J. Dennison, D. Heys, and K. Lampe, The clinical performance of CAD/CAM-generated composite inlays, The Journal of the American Dental Association, vol.136, issue.12, pp.1714-1723, 2005.
DOI : 10.14219/jada.archive.2005.0116

M. Thordrup, F. Isidor, and P. Hörsted-bindslev, A prospective clinical study of indirect and direct composite and ceramic inlays: ten-year results, Quintessence Int, vol.37, pp.139-144, 2006.

F. Chabouis, H. Smail-faugeron, V. Attal, and J. , Clinical efficacy of composite vs ceramic for inlays and onlays -a systematic review

R. Hickel, J. Roulet, S. Bayne, S. Heintze, I. Mjor et al., Recommendations for conducting controlled clinical studies of dental restorative materials. Science Committee Project 2/98?FDI World Dental Federation study design (Part I) and criteria for evaluation (Part II) of direct and indirect restorations including onlays and partial crowns, J Adhes Dent, vol.9, issue.1, pp.121-147, 2007.

S. Bayne and G. Schmalz, Reprinting the classic article on USPHS evaluation methods for measuring the clinical research performance of restorative materials, Clinical Oral Investigations, vol.302, issue.4, pp.209-214, 2005.
DOI : 10.1007/s00784-005-0017-0

G. Ryge, The California dental association quality evaluation system: a standard for self-assessment.I nQuality Evaluation of Dental Restorations: Criteria for Placement and Replacement, pp.273-290

U. Pallesen and J. Van-dijken, An 8-year evaluation of sintered ceramic and glass ceramic inlays processed by the Cerec CAD/CAM system, European Journal of Oral Sciences, vol.108, issue.3, pp.239-246, 2000.
DOI : 10.1034/j.1600-0722.2000.108003239.x

V. Qvist, L. Johannessen, and M. Bruun, Progression of Approximal Caries in Relation to Iatrogenic Preparation Damage, Journal of Dental Research, vol.71, issue.7, pp.1370-1373, 1992.
DOI : 10.1177/00220345920710070401

A. Lussi and M. Gygax, Iatrogenic damage to adjacent teeth during classical approximal box preparation, Journal of Dentistry, vol.26, issue.5-6, pp.435-441, 1998.
DOI : 10.1016/S0300-5712(97)00014-6

W. Fennis, R. Kuijs, M. Barink, C. Kreulen, N. Verdonschot et al., Can internal stresses explain the fracture resistance of cusp-replacing composite restorations?, European Journal of Oral Sciences, vol.6, issue.5, pp.443-448, 2005.
DOI : 10.1016/0109-5641(89)90003-1

W. Fennis, R. Kuijs, C. Kreulen, N. Verdonschot, and N. Creugers, Fatigue resistance of teeth restored with cuspal-coverage composite restorations, Int J Prosthodont, vol.17, pp.313-317, 2004.

H. Fron, J. Vergnes, C. Moussally, S. Cazier, A. Simon et al., Effectiveness of a new one-step self-etch adhesive in the restoration of non-carious cervical lesions: 2-Year results of a randomized controlled practice-based study, Dental Materials, vol.27, issue.3, pp.304-312, 2011.
DOI : 10.1016/j.dental.2010.11.006

R. Hickel, A. Peschke, M. Tyas, I. Mjör, S. Bayne et al., FDI World Dental Federation: clinical criteria for the evaluation of direct and indirect restorations???update and clinical examples, Clinical Oral Investigations, vol.24, issue.Supplement 1, pp.349-366, 2010.
DOI : 10.1007/s00784-010-0432-8

Y. Zhao, D. Rahardja, and Y. Qu, Sample size calculation for the Wilcoxon???Mann???Whitney test adjusting for ties, Statistics in Medicine, vol.51, issue.3, pp.462-468, 2008.
DOI : 10.1002/sim.2912

R. Frankenberger, M. Taschner, F. Garcia-godoy, A. Petschelt, and N. Krämer, Leucite-reinforced glass ceramic inlays and onlays after 12 years, J Adhes Dent, vol.10, pp.393-398, 2008.

N. Krämer, M. Taschner, U. Lohbauer, A. Petschelt, and R. Frankenberger, Totally bonded ceramic inlays and onlays after eight years, J Adhes Dent, vol.10, pp.307-314, 2008.

P. Guess, J. Strub, N. Steinhart, M. Wolkewitz, and C. Stappert, All-ceramic partial coverage restorations???Midterm results of a 5-year prospective clinical splitmouth study, Journal of Dentistry, vol.37, issue.8, pp.627-637, 2009.
DOI : 10.1016/j.jdent.2009.04.006

S. Heintze, A. Cavalleri, M. Forjanic, G. Zellweger, and V. Rousson, Wear of ceramic and antagonist???A systematic evaluation of influencing factors in vitro, Dental Materials, vol.24, issue.4, pp.433-449, 2008.
DOI : 10.1016/j.dental.2007.06.016

J. Manhart, P. Neuerer, A. Scheibenbogen-fuchsbrunner, and R. Hickel, Three-year clinical evaluation of direct and indirect composite restorations in posterior teeth, The Journal of Prosthetic Dentistry, vol.84, issue.3, pp.289-296, 2000.
DOI : 10.1067/mpr.2000.108774

M. Peumans, D. Munck, J. Van-landuyt, K. Poitevin, A. Lambrechts et al., Two-year clinical evaluation of a self-adhesive luting agent for ceramic inlays, J Adhes Dent, vol.12, pp.151-161, 2010.

G. Sjogren, M. Molin, and J. Van-dijken, A 10-year prospective evaluation of CAD/CAM-manufactured (Cerec) ceramic inlays cemented with a chemically cured or dual-cured resin composite, Int J Prosthodont, vol.17, pp.241-246, 2004.

G. Moncada, J. Martin, E. Fernández, M. Hempel, I. Mjör et al., Sealing, Refurbishment and Repair of Class I and Class II Defective Restorations, The Journal of the American Dental Association, vol.140, issue.4, pp.425-432, 2009.
DOI : 10.14219/jada.archive.2009.0191

E. Vierron and B. Giraudeau, Sample size calculation for multicenter randomized trial: Taking the center effect into account, Contemporary Clinical Trials, vol.28, issue.4, pp.451-458, 2007.
DOI : 10.1016/j.cct.2006.11.003

. Haute-autorité-de-santé, Méthodes Quantitatives pour Évaluer les Interventions Visant à Améliorer les Pratiques. Saint-Denis la Plaine: Haute Autorité de Santé, 2007.

T. Fleming, Addressing Missing Data in Clinical Trials, Annals of Internal Medicine, vol.154, issue.2, pp.113-117, 2011.
DOI : 10.7326/0003-4819-154-2-201101180-00010

F. Chabouis, H. Chabouis, F. Gillaizeau, F. Durieux, P. Chatellier et al., Randomization in clinical trials: stratification or minimization? Clin Oral Investig: The HERMES free simulation software, 2013.

H. Fron, Performances comparées des inlays-onlays composites ou céramiques réalisés par CFAO directe dans le cadre des pertes de substance postérieures moyennes à importantes: essai clinique randomisé multicentrique: élaboration du protocole, Master's thesis, 2010.

P. Austin, A. Manca, M. Zwarenstein, D. Juurlink, and M. Stanbrook, A substantial and confusing variation exists in handling of baseline covariates in randomized controlled trials: a review of trials published in leading medical journals, Journal of Clinical Epidemiology, vol.63, issue.2, pp.142-153, 2010.
DOI : 10.1016/j.jclinepi.2009.06.002

I. White, N. Horton, J. Carpenter, and S. Pocock, Strategy for intention to treat analysis in randomised trials with missing outcome data, BMJ, vol.342, issue.feb07 1, p.40, 2011.
DOI : 10.1136/bmj.d40

L. Yu, A. Chan, S. Hopewell, J. Deeks, and D. Altman, Reporting on covariate adjustment in randomised controlled trials before and after revision of the 2001 CONSORT statement: a literature review, Trials, vol.36, issue.1, p.59, 2010.
DOI : 10.1093/ije/dym087

S. Pocock, S. Assmann, L. Enos, and L. Kasten, Subgroup analysis, covariate adjustment and baseline comparisons in clinical trial reporting: current practiceand problems, Statistics in Medicine, vol.134, issue.19, pp.2917-2930, 2002.
DOI : 10.1002/sim.1296

C. Ich-steering, ICH Harmonised Tripartite Guideline: Statistical principles for clinical trials, International Conference on Harmonisation E9 Expert Working Group, pp.1905-1942, 1999.

K. Schulz, D. Altman, D. Moher, and C. Group, CONSORT 2010 Statement, Obstetrics & Gynecology, vol.115, issue.5, pp.726-732, 2010.
DOI : 10.1097/AOG.0b013e3181d9d421

I. Boutron, D. Moher, D. Altman, K. Schulz, P. Ravaud et al., Extending the CONSORT Statement to Randomized Trials of Nonpharmacologic Treatment: Explanation and Elaboration, Annals of Internal Medicine, vol.148, issue.4, pp.295-309, 2008.
DOI : 10.7326/0003-4819-148-4-200802190-00008

S. Hopewell, M. Clarke, D. Moher, E. Wager, P. Middleton et al., CONSORT for reporting randomised trials in journal and conference abstracts, The Lancet, vol.371, issue.9609, pp.281-283, 2008.
DOI : 10.1016/S0140-6736(07)61835-2

A. Chan, J. Tetzlaff, D. Altman, A. Laupacis, P. Gøtzsche et al., SPIRIT 2013 Statement: Defining Standard Protocol Items for Clinical Trials, SPIRIT 2013 statement: defining standard protocol items for clinical trials, pp.200-207, 2013.
DOI : 10.7326/0003-4819-158-3-201302050-00583