Analysis of the influence of residual alveolar bone height on sinus augmentation outcomes

Gustavo Avila‐Ortiz; Rodrigo Neiva; Pablo Galindo‐Moreno; Ivan Rudek; Erika Benavides; Hom‐Lay Wang

doi:10.1111/j.1600-0501.2011.02270.x

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Analysis of the influence of residual alveolar bone height on sinus augmentation outcomes

Journal article

Peer reviewed

Analysis of the influence of residual alveolar bone height on sinus augmentation outcomes

Gustavo Avila‐Ortiz, Rodrigo Neiva, Pablo Galindo‐Moreno, Ivan Rudek, Erika Benavides and Hom‐Lay Wang

Clinical oral implants research, Vol.23(9), pp.1082-1088

09/2012

DOI: 10.1111/j.1600-0501.2011.02270.x

PMID: 22092705

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Abstract

Introduction\nMaxillary sinus augmentation is a predictable implant site development technique for posterior atrophic maxillary ridges. However, graft consolidation requires adequate angiogenesis and migration of osteogenic cells from native bone. Therefore, the amount of residual bone height (RBH) may play a role in the rate of graft maturation. The purpose of this study was to analyze the influence of RBH in the histomorphometric outcomes of maxillary sinus augmentation procedures.\nMaterial and methods\nPatients in need of sinus augmentation were recruited for the study. Customized radiographic guides were fabricated and a cone‐beam computerized tomography scan was obtained at baseline. Two examiners measured RBH on the scans at the locations marked by the radiographic guide. Sinus grafting was performed by a lateral window approach using a particulated mineralized allograft. Patients were followed up for 6 months. At the time of implant placement, bone core biopsies were harvested using the radiographic guide, which was converted into a surgical guide. Samples were histomorphometrically analyzed. Proportion of vital bone (%VB), remaining allograft particles (%RA), and non‐mineralized tissue (%NMT) were quantified. Categorical analysis of correlation of RBH (<4 or ≥4 mm) with%VB and%RA was performed using a statistical model.\nResults\nTwenty‐one patients underwent sinus augmentation for a total of 21 sinuses. One patient developed an infection after grafting and was excluded. Histomorphometric analysis revealed that mean%VB was 20.47 ± 18.25, mean %RA was 29.04 ± 24.94, and average %NMT was 50.47 ± 12.76. No significant correlation between RBH and %VB (r = 0.016; P = 0.951), and RBH and % (r = 0.009; P = 0.971) was found. Similarly, categorical analysis of correlation showed no statistical significance.\nConclusion\nThese findings suggest that the remaining alveolar bone height does not appear to influence the maturation and consolidation of an allograft in the maxillary sinus.

bone substitutes

bone regeneration

clinical trials

clinical research

guided tissue regeneration

sinus floor elevation

Details

Title: Subtitle: Analysis of the influence of residual alveolar bone height on sinus augmentation outcomes
Creators: Gustavo Avila‐Ortiz - University of Michigan School of Dentistry
Rodrigo Neiva - University of Florida College of Dentistry
Pablo Galindo‐Moreno - University of Granada School of Dentistry
Ivan Rudek - University of Michigan School of Dentistry
Erika Benavides - University of Michigan School of Dentistry
Hom‐Lay Wang - University of Michigan School of Dentistry
Resource Type: Journal article
Publication Details: Clinical oral implants research, Vol.23(9), pp.1082-1088
DOI: 10.1111/j.1600-0501.2011.02270.x
PMID: 22092705
NLM abbreviation: Clin Oral Implants Res
ISSN: 0905-7161
eISSN: 1600-0501
Number of pages: 7
Language: English
Date published: 09/2012
Academic Unit: Periodontics
Record Identifier: 9984065802902771

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