CASE OF THE MONTH     |   09/2025

Ridge Augmentation in a Four-Walled Defect Using a Fully Resorbable Magnesium Membrane: A Clinical Case Report

Dr. Tamas Szekely

A young male patient presented with an inflamed lower right first molar (tooth 46). Due to the poor prognosis of the tooth, extraction was indicated and performed. Given the extent of local inflammation, no immediate implant placement was planned. Following a healing period, clinical and radiographic evaluation revealed insufficient volume and contour of the alveolar ridge, as anticipated. The mesial and distal bone walls remained intact, forming a classic four-walled defect. Autologous bone chips were harvested and mixed with cerabone® plus to create a cohesive grafting material.  A NOVAMag® membrane was selected for this procedure due to its excellent space-maintaining properties and full resorbability. The membrane was folded over the augmented site and fixated both lingually and buccally with NOVAMag® fixation screws.

At the 5-month follow-up, CBCT imaging demonstrated significant bone regeneration and defect resolution, allowing for successful implant placement. Intraoperative findings confirmed the presence of healthy, well-vascularized bone. After three months, uncovering revealed nearly complete bone coverage over the cover screw. A customized healing abutment was used to shape the emergence profile, followed by the placement of a screw-retained monolithic zirconia crown, achieving both functional and aesthetic restoration.

The „Case Of The Month“ highlights every month a clinical case, which distinguished itself by the clinical results or the treatment concept in combination with the applied botiss biomaterials. The selection of the case is based on content relevance and quality of the documentation.

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