Journal of Pharmaceutical Negative Results ¦ Volume 13 ¦ Special Issue 7 ¦ 2022 500 Evaluation Of Immediate Bone Level Changes Around Different Implant Systems From Surgical Stage To Prosthetic Stage - A Retrospective Study Madhura Deshmukh 1 , Nabeel Ahmed 2 *, Harini Sri 3 , Sanjog Agarwal 4 , Dhanraj Ganapathy 5 1 Post graduate student, Department of Prosthodontics and Implantology, Saveetha Dental College And Hospitals, Saveetha Institute Of Medical And Technical Sciences, Saveetha University, Chennai-600077,Tamilnadu,India, Email: 151909004.sdc@saveetha.com 2 Senior lecturer, Department of Prosthodontics and Implantology, Saveetha Dental College And Hospitals, Saveetha Institute Of Medical And Technical Sciences, Saveetha University, Chennai-600077,Tamilnadu,India, Email: nabeel.5610@gmail.com 3 Post graduate student, Department of Prosthodontics and Implantology, Saveetha Dental College And Hospitals, Saveetha Institute Of Medical And Technical Sciences, Saveetha University, Chennai-600077,Tamilnadu,India 4 Post graduate student, Department of Prosthodontics and Implantology, Saveetha Dental College And Hospitals, Saveetha Institute Of Medical And Technical Sciences, Saveetha University, Chennai-600077,Tamilnadu,India, Email: 151909002.sdc@saveetha.com 5 Professor and Head, Department of Prosthodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Email: dhanraj@saveetha.com This study evaluates the immediate bone level changes around different implant systems from placement to 3 months post - operative radiographically. The assessment of bone loss at the crestal module level of different implant systems relates the findings to the image on a radiograph. The purpose of this study was to evaluate the immediate changes to marginal bone level radiographically around different implant systems. A total of 100 implant radiographs were assessed which were placed in different areas of the jaw. It was found that thread exposure of Straumann roxolid SLActive™ surface implants was least compared to Nobel Biocare™ conical connection / Groovy and Equinox™ implant systems. Thus, radiographs serve as critical parameters to evaluate marginal bone changes surrounding dental implants. Keywords: Implant, bone, radiograph, marginal, periimplant DOI: 10.47750/pnr.2022.13.S07.067 INTRODUCTION Implant dentistry employs considerable clinical skills in an effort to cope with the consequences of partial and/or complete edentulism. Long term clinical success of dental implants depends on the amount of crestal bone around the implants. The crestal module of implant receives the prosthetic component and hence the design of implant systems influences the marginal bone loss around implants. The clinical tests which are commonly used to evaluate tissues surrounding natural teeth are also utilized in implant dentistry. Studies on the changes of the marginal bone around dental implants have significance not only for the functional maintenance but also for the esthetic success of the dental implant (1,2). Current implant placement procedures utilize both non-submerged and submerged techniques. Several parameters are described to work out success or failure in future evaluations of dental implants. One of these parameters is observation of changes in peri-implant bone levels(3). Success of dental implants is mainly dependent on integration between implants and intra oral soft and hard tissue. In both the sub-merged and non-submerged approaches, initial breakdown occurs at the implant tissue interface and begins at the crestal region in successfully osseointegrated endosteal implants. Eventually, well osseointegrated implants act as anchors for various prosthetic reconstructions of fully and partially edentulous patients(4). Thus, maintenance of osseointegration in steady state at marginal bone level is imperative. Also in routine clinical practice, the restoring prosthodontist uses one particular system of implant and its original components including abutments and screws as supplied by the same manufacturer. Discrepancies greater than 10 mm are reported to result in bacterial infiltration and inadequate screw mechanics(5,6). Successful osseointegration being a prerequisite for functional dental implants ,its continuous monitoring in an objective and quantitative manner is significant for determining the status of implant stability. Historically, the only gold standard method