Browsing by Author "Bural, Canan"

Now showing 1 - 4 of 4

Citation Count: 14
Comparative Ex Vivo Evaluation of Two Electronic Percussive Testing Devices Measuring the Stability of Dental Implants
(Amer Acad Periodontology, 2014) Geckili, Onur; Bilhan, Hakan; Cilingir, Altug; Bilmenoglu, Caglar; Ates, Gokcen; Urgun, Aliye Ceren; Bural, Canan
Background: A comparative ex vivo study was performed to determine electronic percussive test values (PTVs) measured by cabled and wireless electronic percussive testing (EPT) devices and to evaluate the intra-and interobserver reliability of the wireless EPT device. Methods: Forty implants were inserted into the vertebrae and forty into the pelvis of a steer, a safe distance apart. The implants were all 4.3 mm wide and 13 mm long, from the same manufacturer. PTV of each implant was measured by four different examiners, using both EPT devices, and compared. Additionally, the intra-and interobserver reliability of the wireless EPT device was evaluated. Results: Statistically significant differences (P < 0.05) were observed between PTVs made by the two EPT devices. PTVs measured by the wireless EPT device were significantly higher than the cabled EPT device (P < 0.05), indicating lower implant stability. The intraobserver reliability of the wireless EPT device was evaluated as excellent for the measurements in type II bone and good-to-excellent in type IV bone; interobserver reliability was evaluated as fair-to-good in both bone types. Conclusion: The wireless EPT device gives PTVs higher than the cabled EPT device, indicating lower implant stability, and its inter-and intraobserver reliability is good and acceptable.
Citation Count: 13
Comparison of the Primary Stability of Two Implant Designs in Two Different Bone Types: An In Vitro Study
(Quintessence Publishing Co inc, 2015) Bilhan, Hakan; Bilmenoglu, Caglar; Urgun, Aliye Ceren; Ates, Gokcen; Bural, Canan; Cilingir, Altug; Geckili, Onur
Purpose: Achievement of primary stability upon surgical placement of dental implants is a key factor for successful osseointegration and depends mainly on implant-related factors. The aim of this study was to compare and assess the primary stability of implants with active and regular threads in type 2 as well as type 4 bone. Materials and Methods: Fresh cow vertebrae and a pelvis were used as models of type 4 bone and type 2 bone, respectively. Implants with two different designs-regular-threaded and active-threaded-both 4.3 mm wide and 13 mm long, were placed in both types of bone (n = 80). Stability measurements were completed by four prosthodontists using two different Periotest devices and resonance frequency analysis. Statistical analyses were performed with the Mann-Whitney U test. Results: No statistically significant differences were found between the implant types in either type of bone in the stability measured with different methods. For both implant types, the mean resonance frequency values in type 2 bone were statistically significantly higher than in type 4 bone, whereas the mean Periotest values in type 2 bone were statistically significantly lower than in type 4 bone. Conclusion: Within the limitations of this in vitro study in bone types 2 and 4, the active-threaded implant, which was invented to increase primary stability, did not show higher primary stability compared to a regular-threaded implant.
Citation Count: 8
Determination of the Optimum Torque to Tighten the Smartpegs of Magnetic Resonance Frequency Analyses Devices: An Ex Vivo Study
(Allen Press inc, 2015) Geckili, Onur; Cilingir, Altug; Bural, Canan; Bilmenoglu, Caglar; Bilhan, Hakan
The aim of this study was to find an optimal value for tightening the Smartpegs for magnetic radiofrequency analysis devices (RFAs) devices. Thirty implants were placed in 3 cow ribs. The RFA value of each implant was measured in buccal and mesial directions after tightening the Smartpegs with 1, 3, 4, 8, 9, 10, and 11 Ncm. Additionally, 4 different examiners measured the RFA after hand tightening the Smartpegs, and the results were compared. The buccal implant stability quotient (ISQ) values when the Smartpegs were tightened to 1Ncm were significantly lower than the ISQ values when the Smartpegs were tightened to 3, 4, 8, 9, 10, and 11 Ncm (P<.05). The mesial ISQ values when the Smartpegs were tightened to 1, 3, and 4 Ncm were significantly lower than the ISQ values when the Smartpegs were tightened with higher torque values (P<.05). The buccal measurements made by 1 examiner was significantly lower than 3 Ncm (P<.05), and the buccal measurements made by 1 examiner was significantly lower than 4 Ncm (P<.05). The mesial ISQ values measured by 2 examiners were significantly lower than 3 Ncm (P<.05), and the mesial ISQ values measured by the other 2 examiners were significantly lower than 8 Ncm (P<.05). The tightening of the Smartpegs should be standardized by the manufacturer to a range of 5-8 Ncm in order to gain reliable objective RFA values, instead of leaving it to subjective finger pressure.
Citation Count: 23
The Evaluation of the Reliability of Periotest for Implant Stability Measurements: An In Vitro Study
(Allen Press inc, 2015) Bilhan, Hakan; Cilingir, Altug; Bural, Canan; Bilmenoglu, Caglar; Sakar, Olcay; Geckili, Onur
Periotest (Medizintechnik Gulden, Modautal, Germany) is a widely accepted implant stability measurement method, although the reliability is not well known. The aim of this in vitro study was to investigate the reliability of the Periotest in implant stability measurements. Thirty implants were placed in 3 cow ribs. The stability of each implant was measured by insertion torque, resonance frequency analyses, and Periotest and then compared. The Periotest values (PTVs) were measured by 4 different examiners. The measurements were repeated twice in both the buccal and mesial directions, for each implant at 2-hour intervals and the intra-and interobserver reliability of Periotest was measured. Results showed that the intraobserver reliability of the Periotest was excellent for the buccal PTVs but fair to poor for the mesial PTVs. The interobserver reliability of the Periotest was excellent for the buccal PTVs but poor for the mesial PTVs. No significance was found between the PTVs and IT values (P =.803) and PTVs and ISQ values, whereas a 47.1% significant correlation was detected between the IT values and ISQ values (P =.009). The present study indicates that only Periotest measurements from buccal result in excellent intra-and interobserver reliability for the quantification of the implant stability.