Can placement of an immediate bone level tapered implant and subperiosteal xenograft help maintain bone architecture in esthetic areas?

Caiazzo A, Brugnami F, Mehra P. Journal of Oral Biology and Craniofacial Research 9 (2019) 186-189.


The goal of the study was to evaluate if the buccal plate preservation (BBP) technique in implant immediacy in conjunction with cerabone® prevents alveolar ridge resorption.

20 patients were subjected to single tooth extraction in the aesthetic zone. In four-wall intact sockets implants were placed immediately following curettage. Spaces between the buccal plate and implant were augmented with cerabone® according to the BBP technique. Sites were stabilized by sutures, but no primary wound closure was achieved. CBCTs were taken immediately after implant placement (T1) and six months post-surgery (T2) to evaluate buccal plate resorption. Measurements were performed at two sites of the socket, at 1mm and at 4mm below the cementoenamel junction of the adjacent teeth.

– Mean bone thickness was 2.86mm (range 1.4–5.3) at T1 at the 1mm point, and 3.09mm (range 1.8–5.3) at the 4mm point
– At T2, the thicknesses were 2.49mm (range 1.2–4.9) at M1, and 2.83mm (range 1.5–5) at M2
– The mean of the difference between T1 and T2 was −0.19±0.85mm at the 1mm point and −0.05±0.99mm at the 4mm point
– The difference between the means at T1 and T2 was not statistically significant
– No implants were lost, all remained successfully in function over the whole observation period 

The results showed excellent stability of the buccal plate contour six months post-operative. The authors concluded that the BBP technique can be successfully used in combination with immediate implant placement.

Dr. Alfonso Caiazzo