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A technology called Trace Registration (TR) has been introduced to allow dynamic navigation of implant placement without the need for a thermoplastic stent. This study was undertaken in order to validate the accuracy of the TR protocol for dynamically guided implant surgery. A retrospective, observational, in vivo study was performed using dynamic navigation via the TR protocol. The preoperative cone beam computed tomography (CBCT) plan was superimposed and registered (aligned) with the postoperative CBCT scan to assess accuracy parameters. A total of 136 implants were placed in 59 partially edentulous arches. Mean deviation between the planned and actual position for all implants was 0.67 mm at the coronal level (entry point), 0.9 mm at the apical level, and 0.55 mm in depth, with an angle discrepancy of 2.50 degrees. Tracing 5 to 6 teeth tended to improve accuracy results compared to tracing 3 to 4 teeth. TR is as accurate as traditional registration and statically guided methods for implant surgery.The aim of this systematic review was to assess in patients with gingival recessions and noncarious cervical lesions (NCCLs) whether restoration of NCCLs may influence the percentage of root coverage following surgical root coverage procedures compared to surgical root coverage procedures without subsequent restoration. Four studies (randomized controlled trials) assessing the effects of NCCL restoration in combination with surgical root coverage procedures were included. Meta-analyses showed no significant differences in overall root coverage, CAL gain, and KTW change between test and control groups. In teeth with NCCLs and gingival recessions, restoration of NCCLs does not affect the clinical outcomes of surgical root coverage.The purpose of this clinical study was to evaluate, through clinical and radiographic parameters, the 2-year implant survival and success rates of single, narrow, immediately loaded implants (3.1-mm diameter) placed in fresh extraction sockets or healed sites in the anterior region. A total of 16 patients were treated with 16 narrow single implants in fresh extraction sockets and healed sites, and restored immediately with temporary crowns. After 3 months, the implants were finally restored with screw-retained or cemented lithium disilicate crowns. Implant success and survival rates were both 100% due to stable marginal bone levels and shallow probing pocket depths after 2 years of follow-up. Within the limits of this clinical study, narrow 3.1-mm dental implants can be used successfully as a minimally invasive alternative in healed sites with a thin bone crest and in the presence of a reduced interdental space. Provided that stability of soft and hard peri-implant tissues were obtained in postextraction sites of mandibular incisors and maxillary lateral incisors with immediate provisional restoration, the 2-year results can be successfully maintained over time.Maintaining soft and hard tissues around dental implants after tooth extraction is one of the major challenges in implant dentistry. After tooth extraction, the subsequent loss of bone and soft tissue is inevitable due to the partial resorption of the buccal bone plate. The recently described socket shield technique addresses the problem by maintaining the buccal piece of the tooth in the extraction socket in order to preserve the buccal bone. As with every new technique, specific complications, like infection of the buccal piece of the tooth, can occur. learn more Herein, the authors present a clinical case that developed a complication with the socket shield technique and the consequential surgical management.Missing canines compromise function and esthetics and therefore should be restored. In case of a retained canine, there can be a conservative approach of classic orthodontic eruption. If that is not effective, an alternative treatment method is to remove the retained tooth, followed by implant placement or transalveolar autotransplantation of the retained canine. En bloc autotransplantation of a retained canine, with surrounding bone, preserves canine periodontium and increases chances for revascularization and vitality of the transplanted tooth. This paper presents an en bloc autotransplantation of retained canines in the mandible in two female patients resulting in canine vitality after 1.5 years with proper pocket depth, physiologic tooth mobility, and positive reaction to ethyl chloride.A number of treatment options have been explored for peri-implantitis. Seven rough-surfaced implants that failed from peri-implantitis were retrieved. Surfaces were treated by different methods saline, chlorhexidine, citric acid, 35% phosphoric acid etch gel, hydrogen peroxide, implantoplasty, airborne-particle abrasion, laser, and titanium brush. Implants were observed under scanning electron microscopy. Chemical agents failed to remove any biologic debris. Airborne-particle abrasion, laser, and titanium brush removed part of the biologic debris, and implantoplasty showed complete biologic debris removal. In ex vivo failed implants, implantoplasty showed complete disturbance and removal of bacterial biofilm.This study evaluates the microbial colonization in the peri-implant sulci and in implant-abutment interfaces of Laser-Lok implants (BioHorizons) with laser-microgrooved abutments (test group) and machined abutments (control group) 18 months after functional loading Real-time polymerase chain reaction revealed significantly greater total and specific microbial load in both the peri-implant sulcus and implant-abutment interface in the control group (P ≤ .05) Similarly, there was a significant reduction in the radiographic crestal bone loss in the test group (P ≤ .05) In total, 14 patients were assessed for clinical and radiographic parameters and microbial evaluation Peptostreptococcus micros and Porphyromonas gingivalis were positively correlated with site-specific plaque scores and bleeding scores, and mean crestal bone loss, respectively Hence, the authors propose using Laser-Lok implants with laser-microgrooved abutments to reduce microbial colonization and consequently preserve the crestal bone levels.

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