A three-dimensional finite element analysis of the stress distribution on morse taper implants surface

Abstract

Moreover, these 5mm implants were positioned at the cortical bone level, which has higher elastic modulus and may have influenced at the stress distribution. However, despite the higher stresses, these implants were well able to withstand the applied forces.

The influence of crown‐to‐implant ratio on marginal bone levels around splinted short dental implants: A radiological and clincial short term analysis

“…42 Based on finite element analysis CIR was identified to play a role in stress reduction, as an increased CIR resulted in higher stress concentrations around peri-implant bone. 15 Following these findings, from a biomechanical point of view increased MBL can be expected with higher CIRs, as mechanical overloading, as well as disuse, provokes periimplant bone resorption. 26,27 As clinical CIR is considered more relevant than anatomical CIR for biomechanical analyses only clinical CIR was calculated in the present study.…”

“…In addition, it is reported that an increased CIR may not be a risk factor for dental implant failure under appropriate plaque control . Based on finite element analysis CIR was identified to play a role in stress reduction, as an increased CIR resulted in higher stress concentrations around peri‐implant bone . Following these findings, from a biomechanical point of view increased MBL can be expected with higher CIRs, as mechanical overloading, as well as disuse, provokes peri‐implant bone resorption …”

“…In the long term, implants of <10 mm are reported to be as predictable as longer implants . Based on finite element analyses implant length only plays a minor role when considering stress concentrations operating on the implant bone interface . Instead implant diameter is suggested to be a more effective design parameter to avoid an overload of peri‐implant bone .…”

“…The magnitude of marginal bone loss (MBL) is stated to be an essential indicator for implant stability and long‐term survival rates, whereby the highest rate of peri‐implant bone loss is observed during the first year of implant loading . Regarding biomechanical characteristics, high crown‐to‐implant ratios (CIR) are reported to have an unfavorable influence, resulting in increased MBL . Thus, the resulting alteration of the clinical CIR is associated with even more tensions on the most cervical peri‐implant bone …”

“…21,24,25 Regarding biomechanical characteristics, high crown-to-implant ratios (CIR) are reported to have an unfavorable influence, resulting in increased MBL. 15,26 Thus, the resulting alteration of the clinical CIR is associated with even more tensions on the most cervical peri-implant bone. 27 In consequence, as with the use of short dental implants, the establishment of high Crown-to-Implant ratios (>1.5) is often unavoidable, their indication has to be considered critical from this point of view.…”