Article

Trephine bone core sinus elevation graft.

Implant Dentistry (Impact Factor: 1.11). 07/2004; 13(2):148-52. DOI: 10.1097/01.ID.0000127525.98819.B6
Source: PubMed

ABSTRACT The sinus cavity often limits the amount of available bone for the placement of implants in the posterior maxilla. The sinus lift operation and graft is a technique that can add grafted bone in excess of 10 to 16 mm through a lateral wall quadrilateral osteotomy. However, when moderate alveolar atrophy is present, an osteotome technique can provide an average bone height in crease of 3.5 mm. This article presents the trephine bone core sinus elevation graft, which is intended to increase bone height 4 to 8 mm. This procedure is especially indicated when adjacent teeth are present and there is only moderate atrophy of the alveolus.

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    Dataset: 2013 EJOS
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    ABSTRACT: In the posterior maxillary sextants, the residual dimensions of the edentulous ridge can considerably limit the insertion of implants with the desired length and diameter. A minimally invasive procedure for transcrestal sinus floor elevation (tSFE), namely the Smart Lift technique, which is based on a standardized sequence of specifically designed drills and osteotomes, was introduced in 2008 and subsequently validated in a series of recent studies. The present technical note describes the use of the technique by a staged approach, called incremental tSFE (i-tSFE), in the augmentation of severely resorbed edentulous ridges. The i-tSFE consists of 2 staged tSFE procedures performed with a transcrestal access, the second of which is performed concomitantly with implant placement. In the present case series, 3 patients with severe bone atrophy (residual bone height, 2 to 3 mm) in the edentulous posterior maxilla were treated with i-tSFE. At the second surgical stage of i-tSFE, implants at least 8 mm long were placed at all sites, and the success of the implant-supported restoration was monitored to 6 months (1 patient) or 3 years (2 patients). Histologic findings from an augmented site showed the presence of newly formed bone, bone marrow spaces with numerous vascular canals, and residual graft particles occupying approximately 50%, 15%, and 35% of the total area, respectively. The results of the study showed that i-tSFE can be performed successfully with the Smart Lift technique to rehabilitate atrophic maxillary posterior sextants. Copyright © 2015 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
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    ABSTRACT: The loss of maxillary posterior teeth leads to a dimensional reduction of the bone crest, which is partly due to the pneumatization of the maxillary sinus. Transcrestal sinus floor elevation (tSFE) is a bone augmentation procedure based on the creation of an access through the edentulous bone crest. To date, several techniques for tSFE have been proposed and validated. Recently, we proposed a simplified, minimally invasive technique for tSFE (namely, the Smart Lift technique) which is based on the use of specifically designed drills and osteotomes. The present paper describes the post-extraction dimensional alterations of the alveolar crest in the maxillary posterior sextants focusing on the contribution of sinus pneumatization, illustrates the operative steps of the Smart Lift technique and presents available data on clinical and patient-centered outcomes of tSFE when performed with this specific technique.The Smart Lift technique represents a simplified, user-friendly option, since it allows for a substantial extent of sinus lift at limited operation times along with limited morbidity.
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