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Author: Robert Horowitz

Abstract:

DFDBA/FDBA putty in an collagen/gelatin carrier (Regenaform) was studied as a sinus augmentation graft material.  Analysis of healing of this material elucidated vital bone ingrowth, graft resorption and/or conversion to vital bone and radiographic changes consistent with vital bone formation during healing and maintenance of height and volume in the grafted site.  This material did not migrate even when perforations existed and formed significantly more vital bone than prior sinus graft studies showed with other materials.  Vital bone formation was 3 – 5 times greater than has been shown using bovine bone as a graft material in sinus augmentation.

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Ziv Mazor, Robert A. Horowitz, Marco Del Corso, Hari S. Prasad, Michael D. Rohrer, and David M. Dohan Ehrenfest

Key Words: Blood platelets; bone regeneration; dental implants; fibrin; maxillary sinus; wound healing

Background: Sinus augmentation with simultaneous implant placement without bone graft material is a hotly debated technique. This technique could be improved and secured by the use of an autologous leukocyte- and platelet-rich fibrin (PRF) (Choukroun’s technique) concentrate. The objectives of this study were to assess the relevance of PRF clots and membranes as the sole filling material during a lateral sinus lift with immediate implantation using radiologic and histologic analyses in a case series.

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Michael Peleg, DMD / Ziv Mazor, DMD / Arun K. Garg. DMD

Key words: atrophic maxilla, bone graft, dental implants, sinus augmentation, sinus mucosa

This study assessed the efficacy of augmentation grafting of the maxillary sinus with the simultaneous placement of dental implants in patient with less than 5 mm of alveolar crestal bone height in the posterior maxilla prior to grafting, although the procedure has traditionally been contraindicated based on empirical data. A total of 160 hydroxyapatite-coated implants was placed into 63 grafted maxilary sunuses in 63 patients whose crestal bone height in this region ranged from 3 to 5 mm.

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Ziv Mazor, DMD / Donald K. Cohen, PhD

Key words: dental implants, early loading, microtexture, surface properties

Purpose: This investigation was conducted to obtain preliminary roughness data on a microtextured implant surface and to determine its ability to sustain a 1-stage surgical procedure and early full occlusal loading of single-tooth restorations in humans.

Materials and Methods: Three-dimensional (3D) vertical scanning interferometry was conducted on samples of the test surface (MTX) and 2 control surfaces (Osseotite and sandblasted/acid-etched [SLA]).