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- Title
The prognostic accuracy of resonance frequency analysis in predicting failure risk of immediately restored implants.
- Authors
Atieh, Momen A.; Alsabeeha, Nabeel H. M.; Payne, Alan G. T.; Silva, Rohana K.; Schwass, Donald S.; Duncan, Warwick J.
- Abstract
Objectives It is of imperative clinical significance to define a safe threshold for planned immediate implant restoration. The aim of this report was to evaluate the prognostic accuracy of resonance frequency analysis ( RFA) measurements recorded at two different times (implant placement and 8-week post-implant placement) and to determine the optimal threshold value for predicting failure risk of immediately restored/loaded implants. Material and methods Twenty-eight 8- or 9-mm-diameter implants were placed in either a fresh molar extraction socket or a healed site. An electronic RFA device was used to record the implant stability quotients ( ISQs) at implant placement surgery, 8 weeks and 1 year. Receiver operating characteristic ( ROC) analysis was used to identify the optimal cut-off level. Sensitivity and specificity were also determined at the selected cut-off value. Results The area under the ROC curve for RFA at 8 weeks was 0.93 with a significant P-value ( P = 0.001). The optimum cut-off value for detecting implant stability was 60.5 ISQ measured at 8 weeks, with sensitivity and specificity of 95.2% and 71.4%, respectively. Conclusions The implant stability measurements after 8 weeks showed a better accuracy in predicting implants that were at risk of failure than those taken at the time of implant placement.
- Subjects
DENTAL implant complications; IMMEDIATE loading (Dentistry); PROGNOSIS; RECEIVER operating characteristic curves; SENSITIVITY &; specificity (Statistics); OSSEOINTEGRATION; OVERLAY dentures; DENTAL radiography
- Publication
Clinical Oral Implants Research, 2014, Vol 25, Issue 1, p29
- ISSN
0905-7161
- Publication type
Article
- DOI
10.1111/clr.12057