Crespi Roberto, Capparè Paolo, Gherlone Enrico, Romanos George E
Department of Dentistry, Vita Salute University, San Raffaele Hospital, Milan, Italy.
Int J Oral Maxillofac Implants. 2007 Nov-Dec;22(6):955-62.
The aim of this study was to evaluate the clinical and radiographic outcome of dental implants immediately placed and loaded into fresh extraction sockets after 18 months.
Twenty-seven patients, 15 women and 12 men, received a total of 160 implants; 150 were placed immediately after extraction. The sockets in the study had fully preserved walls, and 10 were placed in healed sites. Immediately after surgical procedure, all patients received the temporary prosthetic reconstruction in occlusion. Five months postsurgery, definitive metal-ceramic restorations were cemented on abutments. Follow-up visits were performed for the assessment of clinical parameters. Intraoral digital radiographic examinations were performed 3 and 18 months after implant placement.
Minor swelling of the gingival mucosa was observed, but no mucositis or flap dehiscence with suppuration were found. Mean marginal bone loss 1 year 18 months after immediate loading was 0.65 +/- 0.58 mm to the mesial side and 0.84 +/- 0.69 mm to the distal side in the maxilla and 1.13 +/- 0.51 mm mesially and 1.24 +/- 0.60 mm distally in the mandible. There was no difference between splinted and nonsplinted implants with respect to marginal bone loss.
Within the limits of this clinical study, the results indicate that immediate loading of implants placed in immediate extraction sites can be carried out successfully. (Case Series)
本研究旨在评估即刻种植并在18个月后加载到新鲜拔牙窝中的牙种植体的临床和影像学结果。
27例患者，15例女性和12例男性，共植入160颗种植体；150颗在拔牙后即刻植入。研究中的拔牙窝壁完全保留，10颗植入已愈合部位。手术结束后，所有患者即刻进行临时修复体咬合重建。术后5个月，在基台上粘结最终的金属烤瓷修复体。进行随访以评估临床参数。在种植体植入后3个月和18个月进行口腔内数字化影像学检查。
观察到牙龈黏膜有轻微肿胀，但未发现黏膜炎或伴有化脓的瓣裂开。即刻加载后1年（18个月），上颌种植体近中侧平均边缘骨吸收为0.65±0.58mm，远中侧为0.84±0.69mm；下颌种植体近中侧为1.13±0.51mm，远中侧为1.24±0.60mm。夹板式种植体和非夹板式种植体在边缘骨吸收方面无差异。
在本临床研究的范围内，结果表明即刻种植于即刻拔牙部位的种植体即刻加载可成功进行。（病例系列）
