Randomized controlled clinical study assessing two membranes for guided bone regeneration of peri‐implant bone defects: 3‐year results

Abstract

Both treatment modalities resulted in minor, but ongoing contour changes of the peri-implant tissues. Stable interproximal bone levels and healthy tissues can be obtained with membranes up to 3 years.

Efficacy of lateral bone augmentation performed simultaneously with dental implant placement: A systematic review and meta‐analysis

“…Combined mesial and distal marginal bone level changes based on 3 studies (Basler et al., ; Jung, Fenner, Hammerle, & Zitzmann, ; Ramel, Wismeijer, Hammerle, & Jung, ) at a mean follow‐up of 74 months (range 36–150) were −0.19 mm (range 0.04 to −0.61). Mesial and distal values were reported separately in one study (Jung, Halg, Thoma, & Hammerle, ).…”

“…Final PD values were reported in 4 studies (Basler et al., ; Jung et al., , ; Schwarz, Schmucker, & Becker, ) and amounted to 3.4 mm (2.4 to 3.9). PD changes amounted to 0.2 mm [36 months (Basler et al., )]. BOP at the last follow‐up (36 and 96 months, respectively) ranged between 11.0 and 48.1% (Basler et al., ; Schwarz et al., ).…”

“…PD changes amounted to 0.2 mm [36 months (Basler et al., )]. BOP at the last follow‐up (36 and 96 months, respectively) ranged between 11.0 and 48.1% (Basler et al., ; Schwarz et al., ). The level of the mucosa shifted more apically ranging between 0.1 and 0.6 mm (Jung et al., ).…”

“…Contour changes at the buccal aspect of the implant sites between crown insertion and the 3‐year follow‐up were evaluated by means of superimposition of the surface STL files and measurement of the mean distance between the surfaces in the relevant area. The changes amounted to −0.3 mm without significant differences between non‐resorbable and resorbable membrane sites (Basler et al., ).…”

Guided bone regeneration

“…Each of the two membrane types (resorbable and non-resorbable) has its own pros and cons. The type of membrane does not affect the clinical outcome if the clinician carefully follows the principles of GBR 5 - 8 . Decomposition materials, generated during resorbable membrane resorption, may interfere with new bone formation and mechanical stability as a barrier membrane 9 .…”