Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2009-5-4
pubmed:abstractText
The aim of this was to evaluate the histology of periapical lesions in teeth treated with periapical surgery. After root-end resection, the root tip was removed together with the periapical pathological tissue. Histologic sectioning was performed on calcified specimens embedded in methylmethacrylate (MMA) and on demineralized specimens embedded in LR White (Fluka, Buchs, Switzerland). The samples were evaluated with light and transmission electron microscopy (TEM). The histologic findings were classified into periapical abscesses, granulomas, or cystic lesions (true or pocket cysts). The final material comprised 70% granulomas, 23% cysts and 5% abscesses, 1% scar tissues, and 1% keratocysts. Six of 125 samples could not be used. The cystic lesions could not be subdivided into pocket or true cysts. All cysts had an epithelium-lined cavity, two of them with cilia-lined epithelium. These results show the high incidence of periapical granulomas among periapical lesions obtained during apical surgery. Periapical abscesses were a rare occasion. The histologic findings from samples obtained during apical surgery may differ from findings obtained by teeth extractions. A determination between pocket and true apical cysts is hardly possible when collecting samples by apical surgery.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1878-3554
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
35
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
634-42
pubmed:meshHeading
pubmed-meshheading:19410074-Apicoectomy, pubmed-meshheading:19410074-Bicuspid, pubmed-meshheading:19410074-Cicatrix, pubmed-meshheading:19410074-Cilia, pubmed-meshheading:19410074-Coloring Agents, pubmed-meshheading:19410074-Epithelium, pubmed-meshheading:19410074-Humans, pubmed-meshheading:19410074-Incisor, pubmed-meshheading:19410074-Mandible, pubmed-meshheading:19410074-Maxilla, pubmed-meshheading:19410074-Methylmethacrylate, pubmed-meshheading:19410074-Microscopy, Electron, Transmission, pubmed-meshheading:19410074-Microtomy, pubmed-meshheading:19410074-Molar, pubmed-meshheading:19410074-Odontogenic Cysts, pubmed-meshheading:19410074-Periapical Abscess, pubmed-meshheading:19410074-Periapical Diseases, pubmed-meshheading:19410074-Periapical Granuloma, pubmed-meshheading:19410074-Plastic Embedding, pubmed-meshheading:19410074-Radicular Cyst, pubmed-meshheading:19410074-Tissue Fixation
pubmed:year
2009
pubmed:articleTitle
Histology of periapical lesions obtained during apical surgery.
pubmed:affiliation
Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland. schulz@zmk.unibe.ch
pubmed:publicationType
Journal Article