In the maxillary anterior region, reconstruction of the localized alveolar ridge defect is very important in enhancing the esthetics of fixed partial denture. A 40-year-old female patient presented with a chief complaint of the inconvenience and unesthetic problem of 3-unit maxillary anterior prosthesis due to alveolar ridge resorption. After removal of old prosthesis, intraoral examination rev...

Scientific literature describes autogenous bone as the gold standard among graft materials for alveolar reconstructive procedures. Alveolar ridge augmentation has been clinically achieved with different forms of autogenous bone, including autogenous cortical bone particulate (ACBP). However, few histologic studies demonstrating the biologic potential and healing dynamics following the use of AC...

The maxillary posterior area is the most challenging site for the dental implant. Although the sinus graft is a predictable and successful technique for rehabilitation of atrophic and pneumatized posterior maxilla, when there is severe destruction of alveolar bone, a very long crown length remains challenging after successful dental implants installation with sinus graft. We performed vertical ...

Measurements of seafloor asymmetry at about 360000 pairs of conjugate points along 1250 profiles across the midAtlantic Ridge (MAR) provide new constraints on models for the upwelling of the buoyant asthenosphere. The sign and amplitude of the asymmetry vary systematically and are functions of the distance between the spreading center and the location of the inferred location of maximum regiona...

Several techniques and materials have been suggested for alveolar ridge preservation (ARP) after dental extraction and before implant placement. This literature review aimed to discuss the histological and clinical aspects of alveolar healing and the ARP procedure after dental extraction and to verify whether it allows dental implant placement (with or without further augmentation). Despite the...

Young’s Branch (YB), located on a portion of the Wayne National Forest in Lawrence County, is located on bedrocks belonging to the Allegheny group. By contrast, Bluegrass Ridge (BR), the other study area in Lawrence County, is underlain by sedimentary strata of the Connemaugh group. The bedrock complex includes a combination of sandstones, sandy shales (or siltstones), and clay shales (Denton e...

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...

OBJECTIVE Forced eruption has been proposed for the reconstruction of deficient bone and soft tissue. The aim of this study was to examine the changes in the alveolar ridge width and the vertical levels of the interproximal bone and papilla following forced eruption. METHODS Patients whose hopeless maxillary anterior teeth were expected to undergo severe bone resorption and soft tissue recess...

The consequences of exodontia include alveolar bone resorption and ultimately atrophy to basal bone of the edentulous site/ridges. Ridge resorption proceeds quickly after tooth extraction and significantly reduces the possibility of placing implants without grafting procedures. The aims of this article are to describe the rationale behind alveolar ridge augmentation procedures aimed at preservi...