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International Journal of Periodontics & Restorative Dentistry
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Int J Periodontics Restorative Dent 40 (2020), No. 3     9. Apr. 2020
Int J Periodontics Restorative Dent 40 (2020), No. 3  (09.04.2020)

Online Article, Page e95-e102, doi:10.11607/prd.4498, PubMed:32233185


Online Article: Minimally Invasive Management of Implant-Supported Rehabilitation in the Posterior Maxilla, Part II. Surgical Techniques and Decision Tree
Stacchi, Claudio / Spinato, Sergio / Lombardi, Teresa / Bernardello, Fabio / Bertoldi, Carlo / Zaffe, Davide / Nevins, Myron
Insufficient crestal bone is a common feature encountered in the edentulous posterior maxilla due to atrophy of the alveolar ridge and maxillary sinus pneumatization. Numerous surgical techniques, grafting materials, and timing protocols have been proposed for implant-supported rehabilitation of posterior maxillae with limited bone height. In the majority of potential implant sites, residual bone height is less than 8 mm and the clinician has to select either a lateral or transcrestal sinus-elevation technique or placing short implants as the correct surgical option. Nevertheless, guidelines for selecting the best option remains mostly based on the personal experience and skills of the surgeon. The role of sinus anatomy in healing and graft remodeling after sinus floor augmentation is crucial. In addition to the evaluation of residual bone height, the clinician should consider that histologic and clinical outcomes are also influenced by the buccal-palatal bone wall distance. Therefore, three main clinical scenarios may be identified and treated with either a lateral or transcrestal sinus-elevation technique or short implants. This article introduces a new decision tree for a minimally invasive approach based on current evidence to help the clinician safely and predictably manage implant-supported treatment of the atrophic posterior maxilla.