Trephine bone core sinus elevation graft.
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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ABSTRACT: The present study was performed to comparatively evaluate the effectiveness and post-operative morbidity of transcrestal sinus floor elevation (tSFE) performed with a minimally invasive procedure (Smart Lift technique) combined with the additional use of two graft biomaterials. Thirty sites in 30 patients were randomly assigned to tSFE in association with either deproteinized bovine bone mineral (DBBM) (n = 15) or synthetic hydroxyapatite in a collagen matrix (S-HA) (n = 15). In both groups, the extent of the sinus lift (SL) and the height of the graft apical to the implant apex (aGH) were assessed on periapical radiographs taken immediately after surgery and at 6 months following surgery. Surgical and post-surgical complications as well post-surgical pain and discomfort were also assessed. The results of the study indicated that (i) immediately post-surgery, both DBBM and S-HA resulted in substantial SL and aGH, which were maintained at 6 months, (ii) greater aGH and SL were observed in S-HA group compared with DBBM group at 6 months post-surgery and (iii) limited surgical complications and post-operative pain/discomfort were associated with the use of both graft biomaterials. The Smart Lift technique in conjunction with the additional use of either S-HA or DBBM may provide a predictable elevation of the maxillary sinus floor along with limited post-surgical complications and post-operative pain/discomfort. SL and aGH were significantly greater at 6 months for S-HA than DBBM.Clinical Oral Implants Research 10/2011; 23(4):424-32. · 3.43 Impact Factor
- 04/2012; , ISBN: 978-953-51-0487-2
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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.The European Journal of Surgery 12/2013; 4(3):51-56.