Bibliographic reviews

Numeri Uno 23; 2015, 6-7

Clinical Oral Implant Research, Early View, First Published online on 2013, April 8th

The authors verified bone behaviour at 3 months around experimental implants inserted in sites with a peri-implant gap of 1.2 mm, left to heal without biomaterials, only with coagulum (control) and filled with DBBM (test). They found that at 3 months the gap was largely occupied by connective tissue, the residual defect was significantly less in sites with coagulum (0.48 mm) compared to sites with DBBM (0.88 mm).

Clinical Oral Implant Research, 2012; 23: 542-549

The implants were positioned in vivo in standard sites (Control Group), in sights with small circumferential defects (Test Group 1) and in sites with large circumferential defects (Test Group 2). No bone regeneration technique was used in the Test Groups, and the implants were left to heal in the void. At three months osteointegration was observed around all the implants, though in the Test Groups 1 and 2 the BIC was still low and a layer of dense connective tissue, directly proportional to the extent of the defect, had filled the gap. The dimensions of the defects were therefore able to influence the results. So clinically it should be borne in mind that non regenerated bone defects show longer healing times.

Clinical Oral Implants Research, first published online 2010 Nov 19

A radiographic survey was conducted on the behaviour of bone around 282 implants inserted in lifted sinuses with different variables: autologous bone from the iliac crest compared to bovine bone, implants placed at the same time as the sinus lift procedure compared to deferred implant placement. At 24 months, the implant survival rate was higher in the group rehabilitated with implants placed at the same time as the sinus lift procedure (99.3%) compared to deferred implant placement (96.5%); crestal bone reabsorption was signifi cantly lower in the group treated with bovine bone compared to the one treated with autologous bone. Within the fi rst group, the crestal bone reabsorption at 2 years was in turn signifi cantly less in cases where the implants were placed at the same time as the sinus lift procedure compared to deferred implants.

Clinical Oral Implant Research, 22(9), 2011: 1082-3

In the first hours of contact with the biological fluids, a smooth titanium surface treated with Plasma Cleaning favoured the adhesion of in-vivo fibroblasts. The authors suggest that this protocol could potentially bolster the attachment of mucous to the implant posts.

Dental Material Journal, 30: 183-192, 2011

This study once again reconfirms how surface roughening positively influences the immunohistochemical parameters of neo-osteogenesis.

Clinical Oral Implant Research 21: 756–765, 2010

The in-vitro behaviour of the Sweden & Martina surfaces in contact with human osteoblastic cell culture demonstrates that the roughening of the surface offers greater contact area and interconnection with the bone interface.

Minerva Stomatologica, 58:317-30, 2009;

The in-vitro experimental protocol verifi ed the capacity of laser treatment to remove from various implant surfaces the bacterial load induced to simulate the presence of perimplantitis. The results confi rm the effectiveness of laser treatment; however, the authors recommend repeated applications.

IADR General Session & Exhibition - Abstract Collection, 2007

The Sweden & Martina surfaces adequately promote cell growth and differentiation.

Il Circolo, Rivista Periodica di Odontostomatologia, 1: 27-34, 2004

IN-VITRO EVALUATION OF A NEW IMPLANT SURFACE WITH NANOSTRUCTURED MORPHOLOGY

The complex surface morphology of nanostructured surfaces causes significant platelet activation, if compared to a smooth surface. Attachment tests of osteoblastic cells on nanostructured surfaces show a good level of interaction and complete colonisation of the cells. The results are a necessary in-vitro premise of the good functionality of these surfaces.