Journal of Oral Implantology February 2013 - (Page 44)

RESEARCH The Effect of Different Surface Treatments on CementRetained Implant-Supported Restorations Murat Kurt, DDS, PhD1* ¨ ¨ Tolga Kulunk, DDS, PhD1 Cagrı Ural, DDS, PhD1 ¸ ˘ ¨ ¨ xafak Kulunk, DDS, PhD1 S ¨ xengul Danisman, DDS, PhD2 S x Soner Savas, DDS, PhD2 x The purpose of this study was to evaluate the effects of the various surface treatment methods on the retention of single crowns on implant abutments. The study included 50 single crowns that were cemented with adhesive resin cement onto the ITI solid abutments. The specimens were randomly divided into 5 groups, each including 10 specimens according to the following surface treatments: group C, control, abutments remained unaltered as control; group L, etching with CO2 laser; group SB, sandblasting with 50-lm Al2O3; group MS: coating with titanium nitride (TiAlN) with a radiofrequency magnetron sputtering system; and group SP, silicoating by SilanoPen. After the surface treatment procedures were finished, the casted crowns were cemented onto the abutments, and thermocycling was applied to simulate oral environment. The uniaxial tensile force was applied to all test crowns using a universal test machine (Instron) with a crosshead speed of 0.5 mm/min. The load required to dislodge each crown was recorded in Newton. The lowest tensile bond strength values were obtained with group MS (223.26 6 14.30 N) and significantly differ from all other groups except group C. Group SB showed highest test results (506.02 6 18.04 N) and differs from other groups (P , .05). The test values that were obtained in group MS-group C did not show significant differences (P . .05). Sandblasting is an effective method to increase bond strength. Also, Silano-Pen and laser application is advisable for increasing the crown retention to abutments. Titanium aluminum nitride coating with magnetron sputtering technique seems to be ineffective. Key Words: implant abutment, retention, coating, surface treatment, laser INTRODUCTION I ncreasing numbers of edentulous and partially edentulous patients are being treated with implant-supported prostheses.1 The long-term success of dental implants is well-documented.2 Cast fixed partial prostheses for these patients may be screw-retained or cement-retained restorations. Both of them have some advantages and disadvantages. Screw-retained implant-sup- 1 Department of Prosthodontics, Faculty of Dentistry, University of Ondokuz Mayis, Turkey-Samsun. 2 Department of Mechanical Engineering, Faculty of Engineering, University of Erciyes, Turkey-Kayseri. * Corresponding author, e-mail: muratk@omu.edu.tr DOI: 10.1563/AAID-JOI-D-10-00151 44 Vol. XXXIX /No. One /2013 ported prostheses may require additional maintenance because screws may loosen or break, and these prostheses can also cause esthetic problems in the anterior region.1 However, screw-retained prostheses are also associated with nonpassive superstructures, partially unretained restorations resulting from loosening or breakage of fastening screws and rapid loading of the implant interface.3 Cement-retained crown is a choice for many patients who receive implants for several reasons, including esthetics, occlusal stability, overcoming angulation problems, and the fabrication of a passively fitting restoration. Cement-retained prostheses, on the other hand, allow for optimal esthetics and occlusion.3 The crown retention on

Table of Contents for the Digital Edition of Journal of Oral Implantology February 2013

Could the Fountain of Youth Be All in Your Bones?
Vertical Bone Augmentation With Simultaneous Implant Placement Using Particulate
Evaluation of the Bone Healing Process Utilizing Platelet-Rich Plasma Activated by Thrombin
Effect of Model Parameters on Finite Element Analysis of Micromotions in Implant Dentistry
Peri-Implant Defect Augmentation With Autogenous Bone: A Study in Beagle Dogs
Would Nitric Oxide be an Effective Marker for Earlier Stages of Peri-Implant Disease? An
The Effect of Different Surface Treatments on Cement-Retained Implant-Supported
Effect of Rotating Osteotomes on Primary Implant Stability—An In Vitro Investigation
Horizontal Augmentation Through the Ridge-Split Procedure: A Predictable Surgical
The Bis-Acryl Stent
Clinical, Histological, and Histomorphometrical Analysis of Maxillary Sinus Augmentation
A Technique to Salvage a Single Implant-Supported Fixed Dental Prosthesis Having a
Ridge Expansion and Immediate Placement With Piezosurgery and Screw Expanders in
Pterygoid Implants for Maxillofacial Rehabilitation of a Patient With a Bilateral Maxillectomy
Technology in Maxillary Premolar Region: A New Strategy for Soft Tissue Management
Fracture of Anterior Iliac Crest Following Bone Graft Harvest in an Anorexic Patient: Case
A Technique for Constructing a New Maxillary Overdenture to a Nonretrievable Implant
Edentulous Maxillary Arch Fixed Implant Rehabilitation Using a Hybrid Prosthesis Made of

Journal of Oral Implantology February 2013