Influence of proximal box elevation on the marginal quality and fracture behavior of root-filled molars restored with CAD/CAM ceramic or composite onlays

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• 作者：Irina Ilgenstein ; Nicola U. Zitzmann ; Julia Bühler…
• 关键词：Root ; filled molars ; Subgingival margins ; Proximal box elevation ; Ceramic onlay ; Composite onlay ; Fracture resistance ; Marginal quality
• 刊名：Clinical Oral Investigations
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：19
• 期：5
• 页码：1021-1028
• 全文大小：644 KB
• 参考文献：1.Adolphi G, Zehnder M, Bachmann LM, Gohring TN (2007) Direct resin composite restorations in vital versus root-filled posterior teeth: a controlled comparative long-term follow-up. Oper Dent 32:437-42View Article PubMed
  2.Wendt SL Jr, Harris BM, Hunt TE (1987) Resistance to cusp fracture in endodontically treated teeth. Dent Mater 3:232-35View Article PubMed
  3.Magne P, Knezevic A (2009) Thickness of CAD-CAM composite resin overlays influences fatigue resistance of endodontically treated premolars. Dent Mater 25:1264-268View Article PubMed
  4.Dietschi D, Duc O, Krejci I, Sadan A (2007) Biomechanical considerations for the restoration of endodontically treated teeth: a systematic review of the literature—part 1. Composition and micro- and macrostructure alterations. Quintessence Int 38:733-43PubMed
  5.ElAyouti A, Serry MI, Geis-Gerstorfer J, Lost C (2011) Influence of cusp coverage on the fracture resistance of premolars with endodontic access cavities. Int Endod J 44:543-49View Article PubMed
  6.Jiang W, Bo H, Yongchun G, LongXing N (2010) Stress distribution in molars restored with inlays or onlays with or without endodontic treatment: a three-dimensional finite element analysis. J Prosthet Dent 103:6-2View Article PubMed
  7.Hitz T, Ozcan M, Gohring TN (2010) Marginal adaptation and fracture resistance of root-canal treated mandibular molars with intracoronal restorations: effect of thermocycling and mechanical loading. J Adhes Dent 12:279-86PubMed
  8.Randow K, Glantz PO (1986) On cantilever loading of vital and non-vital teeth. An experimental clinical study. Acta Odontol Scand 44:271-77View Article PubMed
  9.Dietschi D, Duc O, Krejci I, Sadan A (2008) Biomechanical considerations for the restoration of endodontically treated teeth: a systematic review of the literature, part II (evaluation of fatigue behavior, interfaces, and in vivo studies). Quintessence Int 39:117-29PubMed
  10.Dietschi D, Olsburgh S, Krejci I, Davidson C (2003) In vitro evaluation of marginal and internal adaptation after occlusal stressing of indirect class II composite restorations with different resinous bases. Eur J Oral Sci 111:73-0View Article PubMed
  11.Frankenberger R, Hehn J, Hajto J, Kramer N, Naumann M, Koch A, Roggendorf MJ (2013) Effect of proximal box elevation with resin composite on marginal quality of ceramic inlays in vitro. Clin Oral Investig 17:177-83View Article PubMed
  12.Zaruba M, Gohring TN, Wegehaupt FJ, Attin T (2013) Influence of a proximal margin elevation technique on marginal adaptation of ceramic inlays. Acta Odontol Scand 71:317-24View Article PubMed
  13.Schmidt JC, Sahrmann P, Weiger R, Schmidlin PR, Walter C (2013) Biologic width dimensions—a systematic review. J Clin Periodontol 40:493-04View Article PubMed
  14.Dietschi D, Spreafico R (1998) Current clinical concepts for adhesive cementation of tooth-colored posterior restorations. Prac Periodontics Aesthet Dent : PPAD 10:47-4, quiz 56
  15.Rocca GT, Krejci I (2007) Bonded indirect restorations for posterior teeth: the luting appointment. Quintessence Int 38:543-53PubMed
  16.Rocca GT, Krejci I (2007) Bonded indirect restorations for posterior teeth: from cavity preparation to provisionalization. Quintessence Int 38:371-79PubMed
  17.Frese C, Wolff D, Staehle HJ (2014) Proximal box elevation with resin composite and the dogma of biological width: clinical R2-technique and critical review. Oper Dent 39:22-1View Article PubMed
  18.Chan KC, Boyer DB (1989) Curing light-activated composite cement through porcelain. J Dent Res 68:476-80View Article PubMed
  19.El-Mowafy OM, Rubo MH (2000) Influence of composite inlay/onlay thickness on hardening of dual-cured resin cements. J Can Dent Assoc 66:147PubMed
  20.Lutz F, Krejci I, Oldenburg T (1986) Elimination of polymerisation stresses at the margins of posterior composite resin restorations: a new restorative technique. Quintessence Int 17:777-84PubMed
  21.Rocca GT, Gregor L, Sandoval MJ, Krejci I, Dietschi D (2012) In vitro evaluation of marginal and internal adaptation after occlusal stressing of indirect class II composite restorations with different resinous bases and interface treatments. “Post-fatigue adaptation of indirect composite restorations- Clin Oral Investig 16:1385-393View Article PubMed
  22.Attia A, Abdelaziz KM, Freitag S, Kern M (2006) Fracture load of composite resin and feldspathic all-ceramic CAD/CAM crowns. J Prosthet Dent 95:117-23View Article PubMed
  23.Rocca GT, Bonnafous F, Rizcalla N, Krejci I (2010) A technique to improve the esthetic aspects of CAD/CAM composite resin restorations. J Prosthet Dent 104:273-75View Article PubMed
  24.Lin CL, Chang YH, Liu PR (2008) Multi-factorial analysis of a cusp-replacing adhesive premolar restoration: a finite element study. J Dent 36:194-03View Article PubMed
  25.Magne P, Knezevic A (2009) Simulated fatigue resistance of composite resin versus porcelai
• 作者单位：Irina Ilgenstein (1)
  Nicola U. Zitzmann (1)
  Julia Bühler (1)
  Florian J. Wegehaupt (2)
  Thomas Attin (2)
  Roland Weiger (1)
  Gabriel Krastl (3)
  
  1. Department of Periodontology, Endodontology, and Cariology, University of Basel, Hebelstrasse 3, 4056, Basel, Switzerland
  2. Department of Preventive Dentistry, Periodontology, and Cariology, University of Zurich, Zurich, Switzerland
  3. Department of Operative Dentistry and Periodontology, University of Würzburg, Würzburg, Germany
  
• 刊物类别：Medicine
• 刊物主题：Dentistry
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1436-3771

文摘

Objectives This study investigated the influence of proximal box elevation (PBE) with composite resin when applied to deep proximal defects in root-filled molars with mesio-occluso-distal (MOD) cavities, which were subsequently restored with computer-aided designed/computer-aided manufacturing (CAD/CAM) ceramic or composite restorations. Materials and method Root canal treatment was performed on 48 human mandibular molars. Standardized MOD cavities were prepared with the distal box located 2?mm below the cemento-enamel junction (CEJ). The teeth were randomly assigned to one of four experimental groups (n--2). In groups G1 and G2, the distal proximal box was elevated up to the level of the CEJ with composite resin (PBE). No elevation was performed in the remaining two groups (G3, G4). CAD/CAM restorations were fabricated with feldspathic ceramic (Vita Mark II, CER) in groups G1 (PBE-CER) and G3 (CER) or with resin nano-ceramic blocks (Lava Ultimate, LAV) in groups G2 (PBE-LAV) and G4 (LAV). Replicas were taken before and after thermomechanical loading (TML; 1.2 Mio cycles; 49?N; 3,000 thermocycles between 50?°C and 5?°C). Following TML, load was applied until failure. Fracture analysis was performed under a stereomicroscope (×16). Marginal quality before and after TML (tooth restoration, composite restoration) was evaluated using scanning electron microscopy (×200). Results After TML, lower percentages of continuous margins were observed in groups G1–G3 compared with pre-TML assessments; however, the differences were not statistically significant. For group G4-LAV, the marginal quality after TML was significantly better than in any other group. The highest mean fracture value was recorded for group G4. No significant difference was found for this value between the groups with PBE compared with the groups without PBE, regardless of the material used. The specimens restored with ceramic onlays exhibited fractures that were mainly restricted to the restoration while, in teeth restored with composite onlays, the percentage of catastrophic failures (fractures beyond bone level) was increased. Conclusion PBE had no impact on either the marginal integrity or the fracture behavior of root canal-treated mandibular molars restored with feldspathic ceramic onlays. CAD/CAM-fabricated composite onlays were more favorable than ceramic onlays in terms of both marginal quality and fracture resistance, particularly in specimens without PBE. Clinical relevance Composite onlays with or without PBE may be a viable approach for the restoration of root-filled molars with subgingival MOD cavities.