Immediate Functional Loading of Brånemark System® Implants with Enhanced Initial Stability: A Prospective 1– to 2‐Year Clinical and Radiographic Study
- 1 March 2003
- journal article
- clinical trial
- Published by Wiley in Clinical Implant Dentistry and Related Research
- Vol. 5 (s1), 10-20
- https://doi.org/10.1111/j.1708-8208.2003.tb00011.x
Abstract
Background: The interest in the benefits of immediate loading of titanium implants has recently involved fixed prostheses for partially edentulous areas. The advantages of this approach well justify the need for extending the procedure to all regions of the mouth. Current available clinical literature on this subject is incomplete. Purpose: The purpose of this study is to investigate the clinical outcome of the immediate loading of Brånemark System® implants (Nobel Biocare AB, Gothenburg, Sweden) inserted with enhanced initial stability principally in posterior sites (78%). Materials and Methods: The present study was conducted in 26 consecutively treated patients. A total of 50 Brånemark System machined surface implants were placed supporting 30 fixed temporary partial dentures in light occlusion. All implants were followed up for a minimum of 1 year of function. Minimum requirements for immediate loading were proposed. Bone quality and quantity were classified according to Lekholm and Zarb's criteria. Stability of the marginal bone level, both mesial and distal, was measured on the basis of radiographic analysis. Implant survival rate was calculated according to Kaplan‐Meier analysis. The peak insertion torque employed during fixture placement was between 40 and 72 Ncm, except in the case of one implant that was lost. Results: Overall survival rate was 98%. An unpaired t‐test revealed bone remodeling conforming to biologic width establishment (p < .005). Conclusions: Within the limit of this study, immediate loading appears to be a viable procedure in posterior sites and for a growing number of clinical indications. Enhanced implant stability and light occlusion seem to be security factors. In spite of unfavorable conditions such as the presence of quality 4 bone and a lack of splinting, all implants with enhanced primary stability survived.Keywords
This publication has 28 references indexed in Scilit:
- Immediate loading of single‐tooth ITI implants in the anterior maxilla: a prospective 5‐year pilot studyClinical Oral Implants Research, 2002
- Crestal Bone Changes Around Titanium Implants. A Histometric Evaluation of Unloaded Non‐Submerged and Submerged Implants in the Canine MandibleThe Journal of Periodontology, 2000
- Immediate functional loading of Brånemark dental implants. An l8‐month clinical follow‐up studyClinical Oral Implants Research, 1999
- Some clinical and radiographical features of submerged and non‐submerged titanium implants. A 5‐year follow‐up study.Clinical Oral Implants Research, 1997
- Dimension of the periimplant mucosaJournal of Clinical Periodontology, 1996
- The peri‐implant hard and soft tissues at different implant systems. A comparative study in the dog.Clinical Oral Implants Research, 1996
- Radiographical and histological characteristics of ssubmerged and nonsubmerged titanium implants. An experimental study in the Labrador dog.Clinical Oral Implants Research, 1996
- Osseointegration of Brånemark fixtures using a single‐step operating technique. A preliminary prospective one‐year study in the edentulous mandible.Clinical Oral Implants Research, 1995
- Clinical and radiographical features of submerged and nonsubmerged titanium implantsClinical Oral Implants Research, 1994
- Osseointegrated Titanium Implants:Requirements for Ensuring a Long-Lasting, Direct Bone-to-Implant Anchorage in ManActa Orthopaedica, 1981