Survival of NobelDirect Implants: An Analysis of 550 Consecutively Placed Implants at 18 Different Clinical Centers

Abstract

Background: A recently introduced implant, the NobelDirect (Nobel Biocare AB, Göteborg, Sweden), has previously been documented with substantial bone resorption in a large number of operated cases.

Biomechanical evaluation of one-piece and two-piece small-diameter dental implants: In-vitro experimental and three-dimensional finite element analyses

“…The success rate of G-NP implants has previously been reported to be lower for 3-mm diameter implants subject to immediate/early loading. 6 However, the results of the present study did not indicate that high stress will always result in overloading-induced bone loss when one-piece implants are used. Another design of one-piece implants showed no significant difference for the stress in the surrounding bone compared to two-piece implants.…”

“…One stated benefit of the one-piece G-NP implant is preservation of the marginal bone level due to the absence of an implant-abutment junction, but some short-term retrospective clinical studies have found these implants to be associated with poor outcomes. 6,12,26,27 The radiographic results indicated the presence of extensive marginal bone loss (>3 mm) around the G-NP implants. The success rate of G-NP implants has previously been reported to be lower for 3-mm diameter implants subject to immediate/early loading.…”

“…5 Nevertheless, some studies still report good results for small-diameter implants. 6,7 Where alveolar bone width is limited, the use of narrow-diameter implants may produce good survival rates. 8,9 Many researchers are cautious about using small-diameter implants, 10,11 since different designs of small-diameter implants have recently been introduced into the market.…”

Plasma in dentistry

“…Since the implant surface is the first part to interact with the host, it has been thoroughly investigated in an attempt to hasten the early host-to-implant response [14,15]. The rationale for its modification focuses upon implant interaction with biofluids, which positively alters the cascade of events leading to bone healing and intimate interaction with the surface [16].…”

Zirconia ceramics in metal-free implant dentistry

“…The fabrication of the two ceramic parts with high precision is a technical challenge because of the brittleness of the ceramic. A gap present between the body part and the abutment increases the risk of bacterial accumulation and thus increases the risk of peri-implant inflammation reaction and bone loss [35]. Therefore, this kind of construction does not prevail in the marketplace.…”