This report details surgical procedures for ridge expansion by means of splitting the crest of an edentulous ridge. Atrophic bony ridges present a unique challenge to the dental implant surgeon. In the past, onlay grafts of bone harvested from the hip, maxillary tuberosity, symphysis of the chin, or external oblique ridge have all been used with success in reconstruction of atrophic ridges. How...

This report reviewed the published data concerning different methods for vertical augmentation of the posterior mandible for implant placement. The main purpose was to compare and contrast the different treatment methods, with a more detailed review of the use of the interpositional osteotomy to vertically augment the posterior mandible. After the data review, we present a case illustrating thi...

補綴治療の目的には,歯 の喪失によって低下 した口腔 機能の回復がある。欠損部 と残存歯の状態,欠 損様式等 の種々の状況 を十分 に考慮 した うえで,架 橋義歯,可 撤 式義歯,イ ンプラン ト等により口腔機能の回復を行 う。 しかし,顎 堤が低位 あるいはまた狭小な場合は,補 綴治 療のみで口腔機能の回復 を行 うことが困難 なことも多 い。 このような症例においては,補 綴治療の前処置とし て,骨 移植やGBR法 等の外科的手法を用いて顎堤の増 量が行われている。現在,こ れらの手法によって顎堤 を 増量 させ ることは可能ではあるが,よ り効率が良 く,簡 便かつ確実な顎堤の増量法の開発が望まれている。 元来生体 には自己修復力がある。両生類のイモリにお いては,四 肢や顎を切断除去 して も完全に再生復元す る ことが知 られてお り,イ モリには強力な自己修復力があ る...

Guided bone regeneration (GBR) is a reconstructive procedure of alveolar ridge using membranes. This procedure is indicated when there is no sufficient bone for implantation, or in the case of optimal implant installation for esthetic or functional needs. GBR can be performed before implant placement, when there is not enough bone for initial stability of implants and less predictable outcomes ...

The Magdalena Ridge Observatory Interferometer (MROI) is a US federally funded project to construct the world’s most ambitious optical/IR (0.6-2.4micron) imaging interferometer at a 10,500ft-altitude site in New Mexico. In its initial phase it will consist of 6 telescopes, each 1.4m in diameter, separated by distances ranging from 7.5m to 340m. A second phase will upgrade the interferometer to ...

Thin alveolar ridges prevent dental implant placement. A variety of autogenous, allografts, xenografts, and alloplastic onlay grafts, alone or in different combinations, have been used to provide sufficient ridge width for proper positioning of endosseous implants. Disadvantages with the iliac crest donor site include significant resorption, patient morbidity, and high costs due to hospitalizat...

BACKGROUND Osseointegrated implants have been documented as efficacious, however, their placement may be contraindicated in some patients due to insufficient bone volume. Techniques such as guided bone regeneration (GBR), immediate implantation, and distraction osteogenesis (DO) have been utilized as ridge enhancement therapies. RATIONALE This systematic review evaluates dental implant surviv...

Objective: The present study aimed to assess ridge augmentation with an allograft bone ring versus GBR titanium

Materials and methods This study included 300 human adult skulls, which were obtained from the Forensic Osteology Research Center, Faculty of Medicine, Chiang Mai University. The metopic suture and supraorbital ridge were observed macroscopically. The degree of supraorbital ridge was classifi ed into 4 levels. The 1st level had a massive prominence, the 2nd showed fair prominence, the 3rd indic...

Background. Lateral ridge augmentation is conventionally accomplished by means of autogenous bone grafts. However, due to its complications, the application of autogenous bone graft substitutes, e.g. mineralized corticocancellous allograft, is ecommended. Methods. In the present study, twelve patients were included, with insufficient alveolar ridge widths in the designated sites for dental impl...