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Related Concept Videos

Bone Structure01:55

Bone Structure

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Within the skeletal system, the structure of a bone, or osseous tissue, can be exemplified in a long bone, like the femur, where there are two types of osseous tissue: cortical and cancellous.
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Bone Remodeling01:40

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Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
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Compact Bone01:27

Compact Bone

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Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
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Bone Disorders01:29

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Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
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The Hyoid Bone01:12

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The hyoid bone is a small U-shaped bone located in the upper neck at the level of the inferior mandible, with its tips pointing posteriorly. It does not directly articulate with any other bone in the body. The hyoid acts as the attachment site for the tongue, the larynx, and the pharynx. It is held in position by a series of small muscles attached from above or below. These muscles help to move the hyoid up/down or forward/back in coordination with movements of the tongue, larynx, and pharynx...
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Spongy Bone01:09

Spongy Bone

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All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
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Related Experiment Video

Updated: Feb 5, 2026

Calvarial Model of Bone Augmentation in Rabbit for Assessment of Bone Growth and Neovascularization in Bone Substitution Materials
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Calvarial Model of Bone Augmentation in Rabbit for Assessment of Bone Growth and Neovascularization in Bone Substitution Materials

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Vertical Bone Augmentation Using Ring Technique with Three Different Materials in the Sheep Mandible Bone.

Yohei Jinno, Ryo Jimbo, Martin Lindström

    The International Journal of Oral & Maxillofacial Implants
    |September 20, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Autogenous bone best maintained volume in sheep mandible augmentation using the ring technique. Osseointegration showed low bone-to-implant contact (BIC) across all graft materials.

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    Area of Science:

    • Oral and Maxillofacial Surgery
    • Biomaterials Science
    • Regenerative Dentistry

    Background:

    • The ring technique is utilized for bone augmentation in dental implantology.
    • Evaluating different bone graft materials is crucial for successful osseointegration.

    Purpose of the Study:

    • To assess volumetric changes and osseointegration of the ring technique using autogenous bone, bovine bone, and biphasic bone substitute in sheep mandibles.
    • To compare the efficacy of different bone graft materials in maintaining augmented bone volume and promoting bone-to-implant contact.

    Main Methods:

    • Three groups of sheep mandibles were augmented using the ring technique with autogenous bone, bovine bone, or biphasic bone substitute, stabilized with dental implants.
    • Three-dimensional imaging was used to calculate volumetric alterations, and histologic and histomorphometric analyses were performed after 5 weeks.

    Main Results:

    • Autogenous bone demonstrated significantly higher material retention and bone area compared to bovine bone and biphasic bone substitute.
    • No significant new bone formation was observed around implants in any group.
    • Bone-to-implant contact (BIC) values were low across all groups, with no statistically significant differences.

    Conclusions:

    • Autogenous bone is effective in maintaining bone volume in the augmented area using the ring technique.
    • The turned implant surface showed limited osseointegration, indicated by low BIC values, regardless of the graft material used.