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KMID : 0602720100140020138
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Implantology
2010 Volume.14 No. 2 p.138 ~ p.151
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The Classification and Comparison of Implant Prosthesis according to Types of Retention. Part I: Screw Retained Prosthesis vs Cement Retained Prosthesis
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Chung Chae-Heon
Son Mee-Kyung
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Abstract
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The retaining methods of implant prostheses can be divided into screw-retained and cement-retained types. Screwretained prosthesis have many advantages, such as retrievability, better retention for reduced interocclusal spaces and easy repair, while their disadvantages include the possibility of screw loosening, relatively high cost, technique sensitivity and difficulty of achieving passive fit. In comparison, cement-retained prosthesis provides good esthetic, passivity and occlusal benefit because no screw holes are involved; however, they are difficult to retrieve. To combine the advantages of both types of prosthesis, screw and cement-retained implant prostheses (SCP) have been introduced. In Part I of this article, the advantages, disadvantages, ideal placement position, impression techniques and occlusal considerations of screw-retained and cement-retained prosthesis are discussed and SCP methods are introduced in Part II.
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KEYWORD
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cement retained prosthesis, passive fit, retrievability, SCP, screw retained prosthesis
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