Abstract
BackgroundThe aim of the current study was to comparatively assess the primary stability of different Straumann® implant designs (BLX, Straumann Tapered Effect, Bone Level Tapered, and Standard Plus) via resonance frequency analysis by using an implant insertion model in freshly slaughtered bovine ribs with and without cortical bone. Tapered Effect (4.1 × 10 mm), Bone Level Tapered (4.1 × 10 mm), Standard Plus (4.1 × 10 mm), and BLX (4.0 × 10 mm) implants were inserted into the distal epiphysis on the longitudinal axis of the freshly slaughtered bovine ribs. As a control, implants with the same sizes were inserted into the proximal diaphysis. The stability of the implants was examined with resonance frequency analysis.ResultsBLX and Tapered Effect implants showed higher implant stability quotient values in both study and control groups. All implant systems showed a significant decrease of mechanical anchorage in the study group. BLX and Bone Level Tapered designs had a significantly lower loss of mechanical anchorage in the lack of cortical bone.ConclusionBoth Tapered Effect and BLX designs could ensure sufficient initial stability; however, BLX implants could be an appropriate option in the lack of cortical bone and poor bone quality at the implant recipient site.Clinical relevanceBLX is a novel implant system, which could be especially beneficial in the presence of spongious bone type at posterior maxillae.
Highlights
The primary stability of a dental implant plays a key role in implant integration and long-term successful clinical outcome
The evaluation of the mean primary stability values of the implants inserted only in type IV bone in both groups revealed that the BLX design had significantly higher mechanical anchorage compared to other implant systems (p 0.043) (Fig. 3)
Differences in Implant stability quotient (ISQ) values for each implant design regarding the presence of cortical bone All implant systems showed a significant decrease of mechanical anchorage in the study group (BLX p 0.000*, Tapered Effect (TE) p 0.001*, Bone Level Tapered (BLT) p 0.000*, and Standard Plus (SP) p 0.002*, respectively)
Summary
The primary stability of a dental implant plays a key role in implant integration and long-term successful clinical outcome. Considering the implant recipient site, primary implant stability could be affected by several factors such as bone density, thickness of the cortical bone, and height of the alveolar ridge. Several studies have clearly showed that improving primary stability via bi-cortical anchorage plays a great role in the success of immediate loading protocols such as All-on-4TM [12] and All-on-3 [13] and implant placements following sinus floor augmentation. The aim of the current study was to comparatively assess the primary stability of different Straumann® implant designs (BLX, Straumann Tapered Effect, Bone Level Tapered, and Standard Plus) via resonance frequency analysis by using an implant insertion model in freshly slaughtered bovine ribs with and without cortical bone. The stability of the implants was examined with resonance frequency analysis
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