A prospective, multicenter study assessing the DENTSPLY Implants, OsseoSpeed™ TX, length 6 mm in the posterior maxilla and mandible: a 1-year follow-up study

• Published in: Clinical oral implants research Vol. 27; no. 4; pp. 452 - 457
• Main Authors: Han, Jie, Zhang, Xiao, Tang, Zhihui, Zhang, Li, Shi, Dong, Meng, Huanxin
• Format: Journal Article
• Language: English
• Published: Denmark Blackwell Publishing Ltd 01.04.2016; Wiley Subscription Services, Inc
• Subjects: Alveolar Bone Loss - etiology; Bone implants; Bone loss; Chipping; Complications; Dental Implantation, Endosseous - adverse effects; Dental Implants; Dental materials; Dental Prosthesis Design; Dental Prosthesis, Implant-Supported - adverse effects; Dental prosthetics; Dental Restoration Failure; early-loading; Follow-Up Studies; Gum disease; Humans; implant; Mandible; Mandible - surgery; marginal bone loss; Maxilla; Maxilla - surgery; Mechanical loading; Pain; Periodontitis; posterior; Prospective Studies; Prostheses; short; Surgery; Surgical implants; Sweden; early-loading; posterior; short; implant; marginal bone loss; periodontitis
• DOI: 10.1111/clr.12587
• ISSN: 0905-7161; 1600-0501

Objective The aim of this multicenter study was to prospectively assess clinical and radiographic outcomes of short implants (length 6 mm) in the posterior region and early‐loading with splinted‐fixed dental prostheses. Materials and methods A total of 45 subjects (77.8% with chronic periodontitis) were enrolled at three study sites. In total, 95 implants (diameter 4 mm, length 6 mm; OsseoSpeed™ 4.0 S; DENTSPLY Implants; Mölndal, Sweden) were placed, two or three implants per subject, using one‐stage surgery and loaded with a screw‐retained splinted ceramic‐fixed prosthesis 6 weeks later. Clinical and radiographic examinations were performed preoperatively, post‐surgery, at loading, and 6 and 12 months after prosthesis placement. Results Four implants failed before loading; all other implants showed favorable clinical and radiographic findings throughout the observation period (1‐year survival and success rate: 95.8%). Postoperative pain and swelling were negligible. Mean changes in marginal bone levels measured from loading were minimal (0.01 ± 0.37 and −0.13 ± 0.46 mm after 6 months and 1 year, respectively). Bone loss less than 1.00 mm was found in 77.5% implants, and bone gain was found in 15.5% implants. Probing depth change less than 2 mm was found in 98.7% of the implants between loading and 1‐year follow‐up. Prosthetic complications included one ceramic veneer chipping. Conclusion One‐year data indicate that the use of 6‐mm‐long implants is a predictable treatment. This provides a good treatment option in situations with limited bone height in posterior regions.