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Autogenous onlay bone grafts fixed with screw implants for the treatment of severely resorbed maxillae. Radiographic evaluation of preoperative bone dimensions, postoperative bone loss, and changes in soft-tissue profile.
Umeå University, Faculty of Medicine, Department of Odontology, Oral and Maxillofacial Surgery.
1996 (English)In: International Journal of Oral and Maxillofacial Surgery, ISSN 0901-5027, E-ISSN 1399-0020, Vol. 25, no 5, 351-359 p.Article in journal (Refereed) Published
Abstract [en]

Thirty patients with severely resorbed edentulous maxillae underwent combined treatment of iliac bone onlay graft and titanium implants. The patients were followed for 3 years. They were radiographically examined before surgery to evaluate the bone volume at the intended implant sites. Only 13/156 implant sites were suitable for implant insertion. The bone level at the implant surfaces was evaluated after 6 months and 1, 2, and 3 years, respectively. There was a continuing decrease of the bone level throughout the follow-up period with a mean loss of 4.9 mm after 3 years and with no difference between sexes. Twenty-six implants were radiographically examined before removal, and only three of these implant sites showed radiographic signs of failure. The soft-tissue profile was analyzed cephalometrically by the subtraction technique. The upper lip generally moved inward and the apex of the nose and the columella downward and inward. The anterior facial height increased in most of the patients, resulting in a downward and inward change of the lower lip, the mentolabial sulcus, the soft-tissue pogonion, and the soft-tissue gnathion.

Place, publisher, year, edition, pages
1996. Vol. 25, no 5, 351-359 p.
Keyword [en]
alveolar ridge augmentation, bone transplantation, cephalometry, endosteal implants, maxilla, tomography
National Category
Dentistry
Identifiers
URN: urn:nbn:se:umu:diva-32422PubMedID: 8961015OAI: oai:DiVA.org:umu-32422DiVA: diva2:303138
Available from: 2010-03-11 Created: 2010-03-11 Last updated: 2017-12-12Bibliographically approved

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