Effects of Screw- and Cement-Retained Implant-Supported Prostheses on Bone

Abstract

There were no important differences in the σ1 analysis and the displacement between the SFP and CFP. The differences in marginal bone level reported between SFP and CFP in some clinical studies may not be related to a mechanical factor.

Biomechanical Behavior of Tooth-Implant Supported Prostheses With Different Implant Connections

“…5,7,14,15 Regardless of the clinical success of TISP when certain criteria are strictly followed, improper fit between the implant and prosthetic abutment may still be a risk factor for mechanical and biological failures. [16][17][18] Macro-and micromovements in the implant-abutment interface can expose the joint to undesirable and concentrated stresses, which may cause loosening or fracture of the prosthetic screw 19 or even bone resorption. 20 Studies on the biomechanical behavior of TISP have mainly evaluated the Purpose: Biomechanical behavior of tooth-implant-supported prostheses (TISPs) with external and internal implants was compared.…”

Analysis of Bone-implant Interfacial Stress during Disocclusion in Complete Implant-supported Prosthesis: A Finite Element Study

“…Functional loads generate stresses, and these will be transferred through all materials that compose a implantsupported prosthesis, from the veneering material to the peri-implant bone. The type and amount of stresses reaching each component of the implant-bone-prosthesis complex are critical for the clinical longevity of an oral rehabilitation [5,14,16]. Biomechanical stress may result on biological or prosthetic complications in a dental implant-prosthesis complex [16].…”

“…In the present study, a non-cantilevered complete implant-supported prosthesis with short implants placed in the posterior mandibular region, representing a viable form of oral rehabilitation, was designed and analyzed using the 3-D finite element method. Numerical modeling of peri-implant structures for biomechanical studies presents the advantage of being non-invasive, and also allows identification and calculation of stresses, strains and displacements at bone-implant interface [3,4,7,8,[11][12][13][14][15]. In the present simulation, the principal maximum and minimum stresses were analyzed.…”

“…Using the finite element method (FEM), many experimental and computational biomechanical studies have analyzed a variety of situations involving rehabilitation with dental implants [3,8,[11][12][13][14][15]. This method has been widely used in implant dentistry biomechanics.…”

“…This method has been widely used in implant dentistry biomechanics. An example is the evaluation of stress distribution at the implant-bone interface and between implants and prosthetic abutments under different conditions and varying size of implants and method of retention [13][14][15]. Therefore, it is considered a valuable method to assess stresses and displacements in structures such as implantsupported prostheses.…”