Journal of Oral Implantology June 2012 - (Page 298)

LITERATURE REVIEW A Comparison Between Screw- and Cement-Retained Implant Prostheses. A Literature Review Rola Shadid, BDS, MSc* Nasrin Sadaqa, BDS, MSc Implant-supported restorations can be secured to implants with screws (screw-retained), or they can be cemented to abutments which are attached to implants with screws (cementretained). This literature review discusses the advantages and disadvantages of each method of retention from different aspects. These aspects include: ease of fabrication and cost, esthetics, access, occlusion, retention, incidence of loss of retention, retrievability, clinical prosthesis fit, restriction of implant position, effect on peri-implant tissue health, provisionalization, immediate loading, impression procedures, porcelain fracture, and clinical performance. Peer-reviewed literature published in the English language between 1955 and 2010 was reviewed using PubMed and hand searches. Since the choice of using either method of retention is still controversial, this review article offers some clinical situations that prefer one method of retention over the other. The review demonstrated that each method of retention has certain advantages and disadvantages; however, there are some clinical situations in which it is better to select one method of retention rather than the other. Key Words: screw-retained, cement-retained, passivity, retention, review INTRODUCTION ith the high rate of implant success for edentulous, partially edentulous, and single tooth restorations, the concept of implant therapy is now a highly predictable treatment modality. Implant dentistry has seen rapid and remarkable progress in recent years. Several questions have been raised concerning materials as well as designs of both implants and implant abutments to achieve maximum clinical success rates. Department of Prosthodontics, Arab American University, Jenin, Palestinian Territory. * Corresponding author, e-mail: rola_shadeed@yahoo. com DOI: 10.1563/AAID-JOI-D-10-00146 W 298 One of the debates is the choice between screw- and cement-retained implant prostheses, which has long been discussed, but the best type of implant prosthesis remains controversial among practitioners. There are few publications that comprehensively compare the 2 types of retention. The aim of this review of the literature was to provide an overview of the advantages and disadvantages of the cement- and screwretained restorations, and also to suggest some clinical situations that advocate for one method of retention over the other. The factors that are affected by different methods of retention of the prostheses to the implants are: ease of fabrication and cost, esthetics, access, occlusion, retention, incidence of loss of retention, retrievability, passivity of fit, restriction of implant position, effect on Vol. XXXVIII/No. Three/2012

Table of Contents for the Digital Edition of Journal of Oral Implantology June 2012

Editorial
Relationships Between the Gonial Angle and Mandibular Ramus Morphology in Dentate Subjects: A Panoramic Radiophotometric Study
A Comparison of Peripheral Marginal Bone Loss at Dental Implants Measured With Conventional Intraoral Film and Digitized Radiographs
Microstrains Around Standard and Mini Implants Supporting Different Bridge Designs
Surface and Biomechanical Study of Titanium Implants Modified by Laser With and Without Hydroxyapatite Coating, in Rabbits
Survival and Success Rates of Immediately and Early Loaded Implants: 12-Month Results From a Multicentric Randomized Clinical Study
Posttreatment Quantification of Patient Experiences With Full-Arch Implant Treatment Using a Modification of the OHIP-14 Questionnaire
Correlation Between Occlusal Forces and Marginal Bone Levels Around Implant- Retained Restorations: A Clinico-Radiological Study
The Influence of Maximum Bite Force on Patient Satisfaction and Quality of Life of Patients Wearing Mandibular Implant Overdentures
Guided Flapless Surgery With Immediate Loading for the High Narrow Ridge Without Grafting
Estimation of the Safe Distance Between the Implant and an Adjacent Tilted Implant Using Trigonometry
Chair-Side Fabrication of a Fixed Implant-Supported Prosthesis in an Edentulous Mandible From A Diagnostic Wax-Up: A Clinical Report
A Comparison Between Screw- and Cement-Retained Implant Prostheses. A Literature Review

Journal of Oral Implantology June 2012