Lateral Ridge Augmentation Using Autogenous Block Grafts and Guided Bone Regeneration: A 10-Year Prospective Case Series Study.

Chappuis, Vivianne; Cavusoglu, Yeliz; Buser, Daniel; von Arx, Thomas (2017). Lateral Ridge Augmentation Using Autogenous Block Grafts and Guided Bone Regeneration: A 10-Year Prospective Case Series Study. Clinical implant dentistry and related research, 19(1), pp. 85-96. Wiley 10.1111/cid.12438

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BACKGROUND The use of autogenous block grafts harvested from intraoral donor sites has proven to be effective for the reconstruction of horizontal bone defects. PURPOSE The objective of this study was to analyze implant success and the rate of block graft resorption 10 years after ridge augmentation to elucidate contributing factors influencing graft maintenance. MATERIALS AND METHODS A staged horizontal block graft augmentation was performed in 52 implant sites exhibiting severe horizontal bone atrophy using autogenous block grafts protected by DBBM and collagen membranes. The crest width was assessed intraoperatively at surgery and at re-entry after 6 months. At the 10 year reexamination clinical and radiographic parameters were assessed using cone beam computed tomography. RESULTS The 10-year implant success rate amounted to 98.1%, with minimal peri-implant bone loss (-0.17 mm for the maxilla, -0.09 mm for the mandible). The surface resorption rate after 10 years was 7.7% (0.38 mm). Grafts originating from the chin demonstrated significantly better graft maintenance at 10 years compared to retromolar grafts. Recipient site and age had no significant impact on graft resorption, whereas females showed more bone loss at the 10-year examination. CONCLUSIONS Lateral ridge augmentation using autogenous block grafts and guided bone regeneration demonstrated a favorable success rate of 98.1% with minimal block graft resorption of 7.7% after 10 years. Modulating factors were origin of the graft and gender.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Oral Surgery and Stomatology

UniBE Contributor:

Chappuis, Vivianne; Buser, Daniel and von Arx, Thomas

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1523-0899

Publisher:

Wiley

Language:

English

Submitter:

Sarah Last

Date Deposited:

20 Jun 2017 15:32

Last Modified:

20 Jun 2017 15:32

Publisher DOI:

10.1111/cid.12438

PubMed ID:

27476677

Uncontrolled Keywords:

anorganic bovine bone mineral; autogenous block grafts; bone regeneration; bone remodeling; bone resorption; clinical trial; collagen membrane; cone beam computed tomography; dental implants; implant design; ridge augmentation

BORIS DOI:

10.7892/boris.98408

URI:

https://boris.unibe.ch/id/eprint/98408

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