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Performance and safety of collagenated xenogeneic bone block for lateral alveolar ridge augmentation and staged implant placement. A monocenter, prospective single‐arm clinical study
Author(s) -
Schwarz Frank,
Mihatovic Ilja,
Ghanaati Shahram,
Becker Jürgen
Publication year - 2017
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/clr.12902
Subject(s) - medicine , dentistry , implant , alveolar ridge , ridge , crown (dentistry) , fixation (population genetics) , bleeding on probing , orthodontics , surgery , periodontal disease , geology , paleontology , population , environmental health
Objectives To assess the clinical safety and performance of collagenated xenogeneic bone block ( CXBB ) for lateral alveolar ridge augmentation and two‐stage implant placement. Material & Methods In ten patients exhibiting a single‐tooth gap, the surgical procedure included the preparation of mucoperiosteal flaps, a rigid fixation of CXBB (Geistlich Bio‐Graft ® ) using an osteosynthesis screw, and contour augmentation. After 24 weeks of submerged healing, the primary endpoint was defined as the final ridge width sufficient to place an adequately dimensioned titanium implant at the respective sites. Secondary outcomes included, for example, the gain in ridge width (mm). Clinical parameters (e.g., bleeding on probing – BOP , probing depth – PD , mucosal recession – MR ) were assessed immediately after the cementation of the crown and at the final visit. Results At 24 weeks, implant placement could be achieved in 8 of 10 patients exhibiting a mean gain in ridge width (mean ± SD ) of 3.88 ± 1.75 mm. Histological analysis has pointed to a homogeneous osseous organization of CXBB . The changes of mean BOP , PD , and MR values at the final visit amounted to 16.62 ± 32.02%, 0.04 ± 0.21 mm, and −0.04 ± 0.12 mm, respectively. Conclusions CXBB may be successfully used to support lateral alveolar ridge augmentation and two‐stage implant placement.