Journal of Oral Implantology October 2014 - (Page 589)

CASE REPORT Repair Technique for Fractured Implant-Supported MetalCeramic Restorations: A Clinical Report Amanda Fucci Wady, DDS, MSc1 ´ Andre Gustavo Paleari, DDS, MSc, PhD1 Thallita Pereira Queiroz, DDS, MSc, PhD2 Rogerio Margonar, DDS, MSc, PhD2* The fracture of porcelain structures have been related in either natural dentition or implant-supported restorations. Techniques using a composite resin or indirect methods can be used. This article presents a porcelain fracture on implant-supported metal-ceramic restoration. IPS Empress e.max laminate veneer restoration was used to repair the fracture. With this technique, it was possible to restore aesthetics and function, combined with low cost and patient satisfaction. Key words: fracture, ceramics, repair, laminate veneer, implantology INTRODUCTION B ecause of their esthetic benefits and satisfactory mechanical properties, 1 metal-ceramic (MC) restorations have been used for several years.1-3 During this time, porcelain fracture occurred at rates of 2.3-8%.4-6 In addition, clinical studies showed the prevalence of ceramic fractures ranged from 5-10% over 10 years of use.7 Although the success of metal-ceramic crowns and fixed partial dentures in natural dentition is well established, scarce data are available on the porcelain fracture of implant-supported MC restorations.8,9 Some researchers have shown that porcelain9-12 fractures occur at a higher rate in implant-supported restorations than do fractures involving metal ceramics in natural dentition.9-12 Another factor associated to porcelain fractures that should be considered is whether the crown is screw-retained or cemented-retained. Some researchers8,13-15 have suggested that the presence 1 UNESP, Univ Estadual Paulista, Araraquara Dental School, Department of Dental Materials and Prosthodontics, Araraquara, ˜ Sao Paulo, Brazil. 2 ˜ Araraquara University Center - UNIARA, Araraquara, Sao Paulo, Brazil. * Corresponding author, e-mail: rogeriomargonar@terra.com.br DOI: 10.1563/AAID-JOI-D-12-00085 of a screw-access hole in an MC crown can weaken the porcelain around the opening, resulting in porcelain fracture, while cement-retained restorations can overcome this problem. In general, the reasons for the porcelain failures may be related to repeated stresses, strains during chewing, trauma7,16,17 or laboratory mistakes.18 Various techniques for porcelain repair have been suggested. There are direct methods using a composite resin to restore the fractured porcelain.4,19,20 In addition, indirect methods can be achieved. These techniques use porcelain in a laboratory procedure.21,22 The advantages of direct methods are less time, lower cost, and easy application. The disadvantages may be low strength, poor wear qualities, and poor esthetics.23-26 The indirect methods involves clinical and laboratory procedures but may be more esthetic.27 Furthermore, the clinical success of porcelain repair depends on the bond between the ceramic and the composite resin.18,28 The research has studied different treatments using bonding agents and acid application.18,29,30 According to the reports described herein, it is still not clear what the technique of choice for dentists should be, especially when the fractured restoration involves implant-supported MC prosthesis. Thus, this article Journal of Oral Implantology 589

Table of Contents for the Digital Edition of Journal of Oral Implantology October 2014

New AAIP Affiliates Increase JOI Readership
Letter to the Editor
Bone Response From a Dynamic Stimulus on a One-Piece and Multi-Piece Implant Abutment and Crown by Finite Element Analysis
Effect of Platelet-Rich Plasma on the Healing of Mandibular Defects Treated With Fresh Frozen Bone Allograft: A Radiographic Study in Dogs
Efficacy of Growth Factor in Promoting Early Osseointegration
Assessment of Candida Species Colonization and Denture-Related Stomatitis in Bar- and Locator-Retained Overdentures
A Simple Solution for Vector Control in Vertical Alveolar Distraction Osteogenesis
Maxillary Ridge Augmentation With Custom-Made CAD/CAM Scaffolds. A 1-Year Prospective Study on 10 Patients
A Retrospective 3- to 5-Year Study of the Reconstruction of Oral Function Using Implant- Supported Prostheses in Patients With Hypohidrotic Ectodermal Dysplasia
Effects of a New Implant Abutment Design on Peri-Implant Soft Tissues
Repair Technique for Fractured Implant-Supported Metal-Ceramic Restorations: A Clinical Report
Full-Mouth Rehabilitation for a Patient With Dentinogenesis Imperfecta: A Clinical Report
New Method to Increase Inter-alveolar Height With Preservation of Crestal Cortical Bone for Implant Treatment
Implant Placement With a Guided Surgery System Based on Stress Analyses Utilizing the Bone Density: A Clinical Case Report
A Novel Technique for Osteotome Internal Sinus Lifts With Simultaneous Placement of Tapered Implants to Improve Primary Stability
Maxillary Sinus Augmentation and Implant Placement Using Venous Blood Without Graft Material: A Case Letter
Modification of Maxillary Sinus Floor With Orthodontic Treatment and Implant Therapy: A Case Letter
A Surgical Guide for Optimal Placement and Immediate Restoration of Implant
Osseointegrated Dental Implants in Growing Children: A Literature Review

Journal of Oral Implantology October 2014