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      Influence of Resonance Frequency Analysis (RFA) Measurements for Successful Osseointegration of Dental Implants During the Healing Period and Its Impact on Implant Assessed by Osstell Mentor Device

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          Abstract

          AIM:

          This study aimed to investigate and assess primary and secondary dental implant stability during the osseointegration period.

          METHODS:

          A total of 77 implants were placed in 42 patients with 26 males and 16 females. The study was conducted by comparing the resonance frequency analysis (RFA) values of the implants inserted in the lower jaw. RFA was done immediately after implant insertion and after 12 weeks. Results were statistically evaluated using SPSS Statistics for Windows, Version 7.1. Level of significance was set at P < 0.05.

          RESULTS:

          Significant differences were detected between the primary and secondary stability values, respectively. Maximum RFA value of 88 and the minimum value of 52 were observed. Stability values increased during the following three months, and all implants were successfully integrated without complication.

          CONCLUSION:

          Our results indicate and suggest that there is a strong linear correlation between implant stability and ISQ values that can be directly estimated by the RFA, especially in the posterior edentulous mandible. Osstell implant device could represent a useful tool which can be used to identify the risk for implant failure.

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          Most cited references41

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          Osseointegration and its experimental background.

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            Osseointegrated titanium implants. Requirements for ensuring a long-lasting, direct bone-to-implant anchorage in man.

            A total of 2895 threaded, cylindrical titanium implants have been inserted into the mandible or the maxilla and 124 similar implants have been installed in the tibial, temporal or iliac bones in man for various bone restorative procedures. The titanium screws were implanted without the use of cement, using a meticulous technique aiming at osseointegration--a direct contact between living bone and implant. Thirty-eight stable and integrated screws were removed for various reasons from 18 patients. The interface zone between bone and implant was investigated using X-rays, SEM, TEM and histology. The SEM study showed a very close spatial relationship between titanium and bone. The pattern of the anchorage of collagen filaments to titanium appeared to be similar to that of Sharpey's fibres to bone. No wear products were seen in the bone or soft tissues in spite of implant loading times up to 90 months. The soft tissues were also closely adhered to the titanium implant, thereby forming a biological seal, preventing microorganism infiltration along the implant. The implants in many cases had been allowed to permanently penetrate the gingiva and skin. This caused no adverse tissue effects. An intact bone-implant interface was analyzed by TEM, revealing a direct bone-to-implant interface contact also at the electron microscopic level, thereby suggesting the possibility of a direct chemical bonding between bone and titanium. It is concluded that the technique of osseointegration is a reliable type of cement-free bone anchorage for permanent prosthetic tissue substitutes. At present, this technique is being tried in clinical joint reconstruction. In order to achieve and to maintain such a direct contact between living bone and implant, threaded, unalloyed titanium screws of defined finish and geometry were inserted using a delicate surgical technique and were allowed to heal in situ, without loading, for a period of at least 3--4 months.
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              Implant stability measurements using resonance frequency analysis: biological and biomechanical aspects and clinical implications.

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                Author and article information

                Journal
                Open Access Maced J Med Sci
                Open Access Maced J Med Sci
                Open Access Macedonian Journal of Medical Sciences
                Republic of Macedonia (ID Design 2012/DOOEL Skopje )
                1857-9655
                15 December 2019
                13 December 2019
                : 7
                : 23
                : 4110-4115
                Affiliations
                [1 ]Dental Implant Center “Vita Dent”, Tetovo, Republic of Macedonia
                [2 ]University Clinic for Maxillofacial Surgery, Ss “Cyril and Methodius” University of Skopje, Skopje, Republic of Macedonia
                [3 ]Department of Prosthodontics, Faculty of Dental Medicine, Ss Cyril and Methodius University of Skopje, Skopje, Republic of Macedonia
                [4 ]Sante Plus Aesthetic Hospital, Skopje, Republic of Macedonia
                [5 ]Optimum Dental Practice, Lahore, Pakistan
                Author notes
                [* ] Correspondence: Aleksandar Stamatoski. University Clinic for Maxillofacial Surgery, Ss “Cyril and Methodius” University of Skopje, Skopje, Republic of Macedonia. E-mail: alexandar.stamatoski@ 123456gmail.com
                Article
                OAMJMS-7-4110
                10.3889/oamjms.2019.716
                7061400
                32165961
                1bc14f7c-e777-4cef-b597-8982e0cea557
                Copyright: © 2019 Denis Bafijari, Alberto Benedetti, Aleksandar Stamatoski, Florent Baftijari, Zoran Susak, Darko Veljanovski.

                This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0)

                History
                : 05 October 2019
                : 19 November 2019
                : 20 November 2019
                Categories
                Dental Sciences

                implant stability,primary stability,osseointegration,resonance frequency analysis

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