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Clin Oral Implants Res. 2016 Apr;27(4):452-7. doi: 10.1111/clr.12587. Epub 2015 Apr 9.

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.

Author information

1
Department of Periodontology, Peking University School of Stomatology, Beijing, China.
2
The first dental center, Peking University School of Stomatology, Beijing, China.
3
The 2nd dental center, Peking University School of Stomatology, Beijing, China.

Abstract

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.

KEYWORDS:

early-loading; implant; marginal bone loss; periodontitis; posterior; short

PMID:
25855871
DOI:
10.1111/clr.12587
[Indexed for MEDLINE]

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