en Periodontology Periodontology Original article Original article <div> <table align="center" hspace="0" vspace="0"> <tbody> <tr> <td style="padding: 0in 12px; text-align: justify;" valign="top"><span style="font-size:13pt"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="font-family:" verdana=""><span style="color:#2e74b5">Background and Aim</span></span></span></b><b><span style="font-size:9.0pt"><span style="font-family:" verdana=""><span style="color:#2e74b5">:</span></span></span></b><b> </b><span style="font-size:9.0pt"><span style="font-family:" verdana="">Immediate implant placement is a predictable therapeutic option to replace the missing teeth. However, it is technique-sensitive, and requires strict case selection criteria. Tooth extraction triggers the biologic phenomenon of bone resorption, which is not prevented with immediate implant placement. This study aimed to evaluate the influence of deproteinized bovine bone mineral (DBBM) use on vertical bone loss around immediately placed mandibular molar implants. &nbsp;</span></span></span></span><br> <span style="font-size:13pt"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="font-family:" verdana=""><span style="color:#2e74b5">Materials and Methods:</span></span></span></b><span style="font-size:9.0pt"><span style="font-family:" verdana=""> In this non-randomized clinical study, 14 patients with immediate molar implants in the lower jaw, restored with screw-retained single crowns were evaluated. The case group (with bone material use) received DBBM in conjunction with implant placement, while no grafting was performed in the control group. The vertical bone level changes were radiographically measured at the mesial and distal implant sides as the distance between the implant shoulder and first implant-bone contact in apical direction. Measurements were made at two time points of six months postoperatively and one year post-functional loading. The acquired data were statistically analyzed using two-way ANOVA. </span></span></span></span><br> <span style="font-size:13pt"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="font-family:" verdana=""><span style="color:#2e74b5">Results</span></span></span></b><span style="font-size:9.0pt"><span style="font-family:" verdana=""><span style="color:#2e74b5">:<b> </b></span></span></span><span style="font-size:9.0pt"><span style="font-family:" verdana="">The mean values for vertical bone loss at the mesial and distal reference points were greater in the control group (without bone replacement material use) than in the case group both six months postoperatively and one year post-functional loading. The difference was statistically significant at both time points (P<0.05).<b><span style="color:#2e74b5"></span></b></span></span></span></span><br> <span style="font-size:13pt"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="font-family:" verdana=""><span style="color:#2e74b5">Conclusion:</span></span></span></b> <span style="font-size:9.0pt"><span style="font-family:" verdana="">Within the limitation of this study, it can be concluded that the use of DBBM in immediate implants can reduce vertical bone loss. &nbsp;</span></span></span></span></td> </tr> </tbody> </table> </div> <div style="text-align: justify;"></div> Bone Substitutes, Therapeutic Use, Dental Implantation, Bone Resorption 148 154 http://jrdms.dentaliau.ac.ir/browse.php?a_code=A-10-900-1&slc_lang=en&sid=1 D Veljanovski darkoveljanovski@gmail.com 100319475328460010410 0000000290040764 Yes Clinic for Oral Surgery “Hami Optimum”, Skopje, N. Macedonia B Stefanovikj stefanovikb@yahoo.com 100319475328460010411 0000000340275482 No Dental practice “Optimum Dental”, Skopje, N. Macedonia Ma Bogdanovski caparoska@yahoo.com 100319475328460010412 0000000173374343 No Dental practice “Molar”, Skopje, N. Macedonia M Stojkova aleksandrapivkova@yahoo.com 100319475328460010413 0000000335998125 No Dental practice “Lukanovski”, Skopje, N. Macedonia D Krstevski sclaus@gmail.com 100319475328460010414 0000000312742717 No Dental practice “Stela”, Skopje, N. Macedonia