Fibre Retention Osseous Resective Surgery (FibReORS). (PART 1)

The position of the most apical inter-dental portion of the alveolar crest is classically used in osseous resective surgery (ORS) to establish the amount of the inter-proximal and buccal/lingual bone resection. Supracrestal fibres connected to the root cementum are always present coronal to the alveolar crest both in healthy and diseased sites.

The students will learn a surgical approach, supported by strong evidence, that combines the classical method of osseous resection with the gingival fibre retention technique. A description of the surgical procedure in four steps will be provided (flap design, marginal soft tissue removal and fibre retention, ORS, suture of the flap). The proposed and clinically long-term controlled technique shifts the bottom of the defect in a more coronal position at the level of the connective tissue fibre attachment, establishing a significantly more conservative supporting bone resection.