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: Sinus floor elevation can be done by lateral maxillary approach or crestal approach by osteotome techniques as a function of residual bone height. The osteotome technique has been developed for minor sinus floor elevation. This is a method with relatively high predictability but is technically demanding. During the past decade, different osteotome-mediated sinus floor elevation techniques have been developed to augment the sinus for predictable implant placement. All these methods aim to access a better, predictable sinus augmentation with low morbidity. Some of these techniques require special equipment or materials, complicated procedure, and a long learning curve. This article describes an innovative approach to sinus augmentation, namely, piezoelectric-assisted osteotome-mediated sinus floor elevation. This method uses a newly designed piezoelectric tip, which can perform sinus floor osteotomy in a simple and atraumatic way. This approach has the greatest advantages of good tactile sense in osteotomy, least perforation, patient comfort with the least and lightest malleting, and shortened surgery. This method may be the most favorable osteotome technique in the future.Implant dentistry 08/2010; 19(4):299-306. · 1.51 Impact Factor
- 04/2012; , ISBN: 978-953-51-0487-2
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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