Simultaneous implant placement and bone grafting with particulate mineralized allograft in sites with buccal wall defects, a three-year follow-up and review of literature

Le, Bach T. and Borzabadi-Farahani, Ali 2014. Simultaneous implant placement and bone grafting with particulate mineralized allograft in sites with buccal wall defects, a three-year follow-up and review of literature. Journal of Cranio-Maxillofacial Surgery 42 (5) , pp. 552-559. 10.1016/j.jcms.2013.07.026

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Abstract

Objectives To assess the relationship between the vertical buccal defect size and the outcome of single-stage (non-submerged) implant placement and simultaneously augmentation of sites with mineralized particulate allograft (Puros Cancellous) using collagen membranes (Ossix Plus). Subjects and methods Records of 108 partially edentulous patients with localized, buccal bone defects in the posterior maxilla and/or mandible [156 tissue-level Straumann implants, 38 male, 70 female, average age = 46.7 (6.4) years] were used for this study. Sectional CBCT scans were used to evaluate ridge forms before implant placement and after bone grafting (36 ± 2.2 months). The initial vertical buccal wall defect was recorded by measuring the amount of vertical Implant Platform's Rough Surface Exposure (IPRSE) when implants were placed [small (<3 mm), medium (3–5 mm), and large (>5 mm)]. The ridge contour at 36 (±2.2) months was classified into 3 categories [completely corrected (no IPRSE seen on CBCT), partially improved (some IPRSE seen on CBCT), no difference/worse]. Results Complete defect correction occurred in 66 (61.1%) patients followed by improved ridge contours in 38 patients. Significant differences were observed in the outcome of simultaneous grafting of sites with different pre-treatment vertical defect sizes (chi-square = 69.394, df = 4, P < 0.001). Two graft failures (one needed regrafting) and 2 implant failures were also seen. Treatment was effective in complete correction of 100% and 79.3% of small and medium-sized vertical defects, respectively. Large-sized defects showed only partial improvement in 90% of cases, without any complete correction. Cumulative implant and graft survival was 98.1%. Conclusions Single-stage implant placement and simultaneous grafting with mineralized particulate allograft showed promising outcome in correcting small and medium sized vertical buccal wall bone defects (<5 mm).

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Dentistry
Publisher:	Elsevier
ISSN:	1010-5182
Date of First Compliant Deposit:	25 October 2024
Date of Acceptance:	2014
Last Modified:	15 Nov 2024 11:18
URI:	https://orca.cardiff.ac.uk/id/eprint/173371

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