| periapical tissue | Tissue surrounding the apex of a tooth, including the apical portion of the periodontal membrane and alveolar bone. (12 Dec 1998) |
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| periapical | <dentistry> X-ray of individual teeth or groups of teeth. (08 Jan 1998) |
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| periapical abscess | <dentistry> Acute or chronic inflammation of tissues surrounding the apical portion of a tooth, associated with the collection of pus, resulting from infection following pulp infection through a carious lesion or as a result of an injury causing pulp necrosis. (12 Dec 1998) |
| periapical cemental dysplasia | <dentistry> A benign, painless, non-neoplastic condition of the jaws which occurs almost exclusively in middle-aged black females. The lesions are usually multiple, most frequently involve vital mandibular anterior teeth, surround the root apices, and are initially radiolucent (becoming more opaque as they mature). Synonym: periapical osteofibrosis. (21 Jun 2000) |
| periapical curettage | <dentistry, procedure> Removal of a cyst or granuloma from its pathologic bony crypt, utilizing a curette, the removal of tooth fragments and debris from sockets at the time of extraction or of bone sequestra subsequently. (05 Mar 2000) |
| periapical cyst | An inflammatory odontogenic cyst derived histogenetically from Malassez' epithelial rests surrounding the root apex of a nonvital tooth. Synonym: periapical cyst, radicular cyst, root end cyst. (05 Mar 2000) |
| periapical diseases | Diseases of the periapical tissue. (12 Dec 1998) |
| periapical granuloma | Chronic nonsuppurative inflammation of periapical tissue resulting from irritation following pulp disease or endodontic treatment. (12 Dec 1998) |
| periapical osteofibrosis | <dentistry> A benign, painless, non-neoplastic condition of the jaws which occurs almost exclusively in middle-aged black females. The lesions are usually multiple, most frequently involve vital mandibular anterior teeth, surround the root apices, and are initially radiolucent (becoming more opaque as they mature). Synonym: periapical osteofibrosis. (21 Jun 2000) |
| periapical periodontitis | Inflammation of the periapical tissue. It includes general, unspecified, or acute nonsuppurative inflammation. Chronic nonsuppurative inflammation is periapical granuloma. Suppurative inflammation is periapical abscess. (12 Dec 1998) |
| periapical radiograph | A radiograph demonstrating tooth apices and surrounding structures in a particular intraoral area. (05 Mar 2000) |
| adenoid tissue | A structure found within the lymphatic system that consists of lymphocytes within a network of fibres. (09 Oct 1997) |
| adipose tissue | <anatomy> Connective tissue that has been specialised to store fat. See: adipocyte. (25 Jun 1999) |
| aerenchymous tissue | A type of plant tissue in which cells are unusually large, resulting in large air spaces in the plant organ, such tissues are often referred to as spongy and usually provide increased buoyancy. (09 Oct 1997) |
| areolar tissue | Loose, irregularly arranged connective tissue that consists of collagenous and elastic fibres, a protein polysaccharide ground substance, and connective tissue cells (fibroblasts, macrophages, mast cells, and sometimes fat cells, plasma cells, leukocytes, and pigment cells). (05 Mar 2000) |
| bone tissue | A connective tissue, the matrix of which consists of collagen fibres and ground substance and in which are deposited calcium salts (phosphate, carbonate, and some fluoride) in the form of an apatite. Synonym: bone tissue. (05 Mar 2000) |