Impact of implant length and diameter on survival rates
|Despite the high success rates of endosseous oral implants, restrictions have been advocated to their placement with regard to the bone available in height and volume. The use of short or nonstandard‐diameter implants could be one way to overcome this limitation.|
53 human studies evaluated.
Implant length: A relatively high number (12) indicated an increased failure rate with short implants which was associated with operators’ learning curves, a routine surgical preparation (independent of the bone density), the use of machined‐surfaced implants, and the placement in sites with poor bone density. Recent publications (22) reporting an adapted surgical preparation and the use of textured‐surfaced implants have indicated survival rates of short implants comparable with those obtained with longer ones.
Implant diameter: Few publications reported an increased failure rate, which was mainly associated with the operators’ learning curves, poor bone density, implant design and site preparation, and the use of a wide implant when primary stability had not been achieved with a standard‐diameter implant. More recent publications with an adapted surgical preparation, new implant designs and adequate indications have demonstrated that implant survival rate and diameter have no relationship.
Renouard F, Nisand D
|Clin Oral Implants Res. 2006 Oct;17 Suppl 2:35-51. https://doi.org/10.1111/j.1600-0501.2006.01349.x|
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