Abstract |
The aim of the present study of single-tooth implants was to compare the success rate and marginal bone resorption of a narrow-diameter self-tapping implant placed in less available bone volume with the standard-diameter self-tapping implant placed in a well-dimensioned alveolar process. A new abutment technique and a different permanent abutment design were also evaluated. Fifty-five patients were included in the study; 27 patients received 28 standard-diameter (3.75-mm) implants, and 28 patients received 32 narrow-diameter (3.25-mm) implants replacing either a central or a lateral incisor in the maxilla. In an attempt to create an ideal emergence profile and to regenerate papillae, individual acrylic resin tooth-shaped temporary abutments were fabricated, based on impressions made immediately following implant placement, and connected to the implant after 6 months. A minimum of 2 months were then allowed before definitive restorative procedures were performed. Impressions were always made at the implant level. Follow-up examinations were performed at 6 months after loading and 1, 2, and 3 years after loading. Two narrow-diameter implants were lost after 6 months, but no other failures were subsequently observed in any of the groups after that. In both groups, marginal bone loss followed the same pattern and was recorded radiographically to be a mean of 0.4 mm from the first to the last examination.
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Authors | E Andersen, E Saxegaard, B M Knutsen, H R Haanaes |
Journal | The International journal of oral & maxillofacial implants
(Int J Oral Maxillofac Implants)
2001 Mar-Apr
Vol. 16
Issue 2
Pg. 217-24
ISSN: 0882-2786 [Print] United States |
PMID | 11324210
(Publication Type: Clinical Trial, Controlled Clinical Trial, Journal Article, Research Support, Non-U.S. Gov't)
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Topics |
- Adolescent
- Adult
- Alveolar Bone Loss
(complications, etiology)
- Bone Density
- Dental Abutments
- Dental Implantation, Endosseous
- Dental Implants, Single-Tooth
(adverse effects)
- Dental Prosthesis Design
- Dental Restoration Failure
- Female
- Humans
- Incisor
- Life Tables
- Male
- Maxilla
- Middle Aged
- Patient Satisfaction
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