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Dental Implant Glossary (K-R)


Keratinized Gingiva (mucosa) The portion of the gingiva that is covered by keratinized epithelium.
Mandibular Basal Bone That portion of the body of the mandible that remains after resorption of the alveolar process. This bone is considered stable and is utilized with the subperiosteal implant.
Mandibular Nerve The third division of the trigeminal nerve. This nerve leaves the skull through the foramen ovale and provides motor innervation to the muscles of mastication, to the tensor palati, the tensor tympani, the anterior belly of the digastric and the mylohyoid muscles. It provides general sensory innervation to the teeth and gingiva, the mucosa, of the cheek and floor of mouth, the epithelium of the anterior two-thirds of the tongue, the meninges, and the skin of the lower portion of the face.
ManAibular Staple (Bone Plate) A form of a trans-osseous implant in which a plate is placed partially into the inferior border, and a series of retentive pins are placed partially into the inferior border with two continuous screws going trans-cortically and penetrating the mouth in the-cuspid area.
Maxillary Sinus The anatomical space located superior to the posterior maxillary alveolar which limits the volume of alveolar bone in this area. A landmark in maxillary implant surgery.
Mental Foramen (a)opening in the lateral surface of the mandible which allows the exit of the third division of the trigeminal nerve and vessels. (b) considered one of the five landmarks for the subperiosteal implant and anatomy.
Mesostructure Bar Any appliance interposed between the infrastructure and superstructure.
Metals (implant) Strong and relatively ductile substances that provide electropositive ions to a corrosive environment and can be polished to a high luster, characterized by metallic atomic bonding. Most often used for surgical implants because of stainless steel titanium, the formation of inert oxide layer
Mucogingival Junction The scalloped linear area denoting the approximation or separation of the gingiva and the alveolar mucosa.
Mucoperiosteum A layer, or connective tissue, that covers bone.Periosteum in the oral cavity that is significant to periodontics is covered with mucosa (alveolaror gingiva) and in the same instance gives rise tomuscle insertion.
Mylohyoid Ridge An oblique ridge on the lingual surface of the mandible which extends from the level of the roots of the last molar as a bony attachment for the mylohyoid muscles which form the floor of the mouth. Determines the lingual boundary of the mandibular subperiosteal.
Nasal Spine A median, sharp process formed by the forward elongation of the maxillae at the lower margin of the anterior aperture of the nose. Used to support a maxillary subperiosteal implant.
Non-Resorbable Substances that show relatively limited in-vivo degradation.
Oral Implant A device or inert substance, biologic or alloplastic, that is surgically inserted into soft or hard tissues, to be used for functional or cosmetic purposes.
Osseointegration Implies that a contact is established without interposition of non-bone tissue between normal remodeled bone and an implant entailing a sustained transfer and distribution of load from the implant to and within the bone tissue.
Passivation Metals and alloys are made less corrosive through surface treatment to produce a thin and stable inert oxide layer along all external surfaces. This is called the passive corrosion condition or a passivated implant.
Pericervical The circular bone resorption that occurs about the necks of endosteal implants shortly after their insertion and that continues slowly during the time of the implant biologic presence.
Peri-Implantitis General term defining disease process surrounding and/or involving implanted foreign materials. Can be traumatic, ulcerative, resorptive, exfoliative.
Permucosal Pin Implants (syn: needle) Endosseous dental implants, shafts of which are threaded or smooth, used in bipodial or tripodial configurations as an abutment.
Polymer A naturally occurring or synthetic substance consisting of giant molecules formed from smaller molecules of the same substance.
Polymer Tooth "Replica Tooth" Polyhydroxylethy1methacrylate (PMMA) alone or in combination with other polymers used to form an implant, shaped like a tooth root recently extracted and immediately placed into tooth's alveolus.
Pterygoid Notch This notch is located at the pyramidal process of the palatine bone between the pterygoid processes and the maxillary tuberosity. This has been considered a landmark for the distal limit of the maxillary subperiosteal implant.
Ramus Frame Full arch implant of tripodial design which consists of a horizontal supragingival connecting bar with endosteal segments placed into the two rami and symphyseal areas.
Ramus Implant Refer to Horizontal Endosteal Implant
Receptor Sites Areas in bone or soft tissue which are prepared to receive an implant.
Receptor Site Former A duplicate form of a root shaped or blade shaped body of an implant. Designed to form an osseous implant receptor site for implant shapes that are not prepared with rotating instruments. Utilized for compression of intramedullary trabeculation and/or expansion of intramedullary space.
Reimplantation Act of reinserting a tooth into the alveolar socket from which it had been avulsed.
Residual Ridge A remnant of the alveolar process and soft tissue covering after teeth are removed.
Resorption (of bone) A loss of bone substances by physiologic or pathologic means is considered associated with the natural aging process, metabolic disturbances and trauma.
Ridge (alveolar) The alveolar process and its soft tissue covering that remain after the teeth are removed.
Ridge Crest The highest continuous surface of the alveolar ridge.

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