Palatal mucosa under dentures: a qualitative histologic and histochemical analysis.
Identifieur interne : 004B92 ( Ncbi/Merge ); précédent : 004B91; suivant : 004B93Palatal mucosa under dentures: a qualitative histologic and histochemical analysis.
Auteurs : A K Sharma ; F D MirzaSource :
- The Journal of prosthetic dentistry [ 0022-3913 ] ; 1986.
Descripteurs français
- KwdFr :
- Adulte, Adulte d'âge moyen, Collagène (métabolisme), Contrainte mécanique, Humains, Kératines (métabolisme), Muqueuse de la bouche (anatomopathologie), Mâchoire édentée (anatomopathologie), Mâchoire édentée (métabolisme), Palais (anatomopathologie), Ponction-biopsie à l'aiguille, Prothèse dentaire complète supérieure, Protéines contractiles (métabolisme), Protéines de la matrice extracellulaire, Sujet âgé.
- MESH :
- anatomopathologie : Muqueuse de la bouche, Mâchoire édentée, Palais.
- métabolisme : Collagène, Kératines, Mâchoire édentée, Protéines contractiles.
- Adulte, Adulte d'âge moyen, Contrainte mécanique, Humains, Ponction-biopsie à l'aiguille, Prothèse dentaire complète supérieure, Protéines de la matrice extracellulaire, Sujet âgé.
English descriptors
- KwdEn :
- Adult, Aged, Biopsy, Needle, Collagen (metabolism), Contractile Proteins (metabolism), Denture, Complete, Upper, Extracellular Matrix Proteins, Humans, Jaw, Edentulous (metabolism), Jaw, Edentulous (pathology), Keratins (metabolism), Middle Aged, Mouth Mucosa (pathology), Palate (pathology), Stress, Mechanical.
- MESH :
- chemical , metabolism : Collagen, Contractile Proteins, Keratins.
- metabolism : Jaw, Edentulous.
- pathology : Jaw, Edentulous, Mouth Mucosa, Palate.
- Adult, Aged, Biopsy, Needle, Denture, Complete, Upper, Extracellular Matrix Proteins, Humans, Middle Aged, Stress, Mechanical.
Abstract
These histologic observations of the epithelium and connective tissue are in close agreement with a host of earlier workers. The striking feature is an increase in thickness of epithelium due to an increase in constituent cell layers, but a decrease in keratinization, with keratin mainly of the parakeratinized variety. There is a definite reduction of collagen fiber network in regions of stress where the fibers present an irregular arrangement in contrast to the normal wavy pattern. Marked chronic inflammatory exudate is also seen. Histochemical investigation of the connective tissue under dentures revealed the presence of a highly elastic and resistant oxytalan fiber network, especially in regions that showed a reduction in collagen fibers. Thus the connective tissue response under dentures is in sharp contrast to what is expected. This abnormal behavior of the connective tissue is probably a reaction to the changes in epithelium. As a result of reduction in keratinization, a highly resistant and protective layer, the connective tissue exhibits altered metabolism and function. We hypothesize that connective tissue takes up a more dominant role of protection and absorption of stress, a role hitherto fulfilled by the epithelium. Thus stresses exerted by dentures on connective tissues are prevented from reaching the bone where they could cause resorption. We therefore feel that denture wear not only results in change within the epithelium, but in an equally significant reaction of the connective tissue. This reaction results in the appearance of a highly resistant and elastic oxytalan fiber system, which assists the connective tissue to react successfully to the stresses exerted on it.
PubMed: 2430097
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Palatal mucosa under dentures: a qualitative histologic and histochemical analysis.</title><author><name sortKey="Sharma, A K" sort="Sharma, A K" uniqKey="Sharma A" first="A K" last="Sharma">A K Sharma</name></author><author><name sortKey="Mirza, F D" sort="Mirza, F D" uniqKey="Mirza F" first="F D" last="Mirza">F D Mirza</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1986">1986</date><idno type="RBID">pubmed:2430097</idno><idno type="pmid">2430097</idno><idno type="wicri:Area/PubMed/Corpus">005271</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">005271</idno><idno type="wicri:Area/PubMed/Curation">005271</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">005271</idno><idno type="wicri:Area/PubMed/Checkpoint">005271</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">005271</idno><idno type="wicri:Area/Ncbi/Merge">004B92</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Palatal mucosa under dentures: a qualitative histologic and histochemical analysis.</title><author><name sortKey="Sharma, A K" sort="Sharma, A K" uniqKey="Sharma A" first="A K" last="Sharma">A K Sharma</name></author><author><name sortKey="Mirza, F D" sort="Mirza, F D" uniqKey="Mirza F" first="F D" last="Mirza">F D Mirza</name></author></analytic><series><title level="j">The Journal of prosthetic dentistry</title><idno type="ISSN">0022-3913</idno><imprint><date when="1986" type="published">1986</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Aged</term><term>Biopsy, Needle</term><term>Collagen (metabolism)</term><term>Contractile Proteins (metabolism)</term><term>Denture, Complete, Upper</term><term>Extracellular Matrix Proteins</term><term>Humans</term><term>Jaw, Edentulous (metabolism)</term><term>Jaw, Edentulous (pathology)</term><term>Keratins (metabolism)</term><term>Middle Aged</term><term>Mouth Mucosa (pathology)</term><term>Palate (pathology)</term><term>Stress, Mechanical</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte</term><term>Adulte d'âge moyen</term><term>Collagène (métabolisme)</term><term>Contrainte mécanique</term><term>Humains</term><term>Kératines (métabolisme)</term><term>Muqueuse de la bouche (anatomopathologie)</term><term>Mâchoire édentée (anatomopathologie)</term><term>Mâchoire édentée (métabolisme)</term><term>Palais (anatomopathologie)</term><term>Ponction-biopsie à l'aiguille</term><term>Prothèse dentaire complète supérieure</term><term>Protéines contractiles (métabolisme)</term><term>Protéines de la matrice extracellulaire</term><term>Sujet âgé</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Collagen</term><term>Contractile Proteins</term><term>Keratins</term></keywords><keywords scheme="MESH" qualifier="anatomopathologie" xml:lang="fr"><term>Muqueuse de la bouche</term><term>Mâchoire édentée</term><term>Palais</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Jaw, Edentulous</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Collagène</term><term>Kératines</term><term>Mâchoire édentée</term><term>Protéines contractiles</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Jaw, Edentulous</term><term>Mouth Mucosa</term><term>Palate</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Aged</term><term>Biopsy, Needle</term><term>Denture, Complete, Upper</term><term>Extracellular Matrix Proteins</term><term>Humans</term><term>Middle Aged</term><term>Stress, Mechanical</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte</term><term>Adulte d'âge moyen</term><term>Contrainte mécanique</term><term>Humains</term><term>Ponction-biopsie à l'aiguille</term><term>Prothèse dentaire complète supérieure</term><term>Protéines de la matrice extracellulaire</term><term>Sujet âgé</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">These histologic observations of the epithelium and connective tissue are in close agreement with a host of earlier workers. The striking feature is an increase in thickness of epithelium due to an increase in constituent cell layers, but a decrease in keratinization, with keratin mainly of the parakeratinized variety. There is a definite reduction of collagen fiber network in regions of stress where the fibers present an irregular arrangement in contrast to the normal wavy pattern. Marked chronic inflammatory exudate is also seen. Histochemical investigation of the connective tissue under dentures revealed the presence of a highly elastic and resistant oxytalan fiber network, especially in regions that showed a reduction in collagen fibers. Thus the connective tissue response under dentures is in sharp contrast to what is expected. This abnormal behavior of the connective tissue is probably a reaction to the changes in epithelium. As a result of reduction in keratinization, a highly resistant and protective layer, the connective tissue exhibits altered metabolism and function. We hypothesize that connective tissue takes up a more dominant role of protection and absorption of stress, a role hitherto fulfilled by the epithelium. Thus stresses exerted by dentures on connective tissues are prevented from reaching the bone where they could cause resorption. We therefore feel that denture wear not only results in change within the epithelium, but in an equally significant reaction of the connective tissue. This reaction results in the appearance of a highly resistant and elastic oxytalan fiber system, which assists the connective tissue to react successfully to the stresses exerted on it.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">2430097</PMID><DateCompleted><Year>1986</Year><Month>12</Month><Day>15</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0022-3913</ISSN><JournalIssue CitedMedium="Print"><Volume>56</Volume><Issue>5</Issue><PubDate><Year>1986</Year><Month>Nov</Month></PubDate></JournalIssue><Title>The Journal of prosthetic dentistry</Title><ISOAbbreviation>J Prosthet Dent</ISOAbbreviation></Journal><ArticleTitle>Palatal mucosa under dentures: a qualitative histologic and histochemical analysis.</ArticleTitle><Pagination><MedlinePgn>574-82</MedlinePgn></Pagination><Abstract><AbstractText>These histologic observations of the epithelium and connective tissue are in close agreement with a host of earlier workers. The striking feature is an increase in thickness of epithelium due to an increase in constituent cell layers, but a decrease in keratinization, with keratin mainly of the parakeratinized variety. There is a definite reduction of collagen fiber network in regions of stress where the fibers present an irregular arrangement in contrast to the normal wavy pattern. Marked chronic inflammatory exudate is also seen. Histochemical investigation of the connective tissue under dentures revealed the presence of a highly elastic and resistant oxytalan fiber network, especially in regions that showed a reduction in collagen fibers. Thus the connective tissue response under dentures is in sharp contrast to what is expected. This abnormal behavior of the connective tissue is probably a reaction to the changes in epithelium. As a result of reduction in keratinization, a highly resistant and protective layer, the connective tissue exhibits altered metabolism and function. We hypothesize that connective tissue takes up a more dominant role of protection and absorption of stress, a role hitherto fulfilled by the epithelium. Thus stresses exerted by dentures on connective tissues are prevented from reaching the bone where they could cause resorption. We therefore feel that denture wear not only results in change within the epithelium, but in an equally significant reaction of the connective tissue. This reaction results in the appearance of a highly resistant and elastic oxytalan fiber system, which assists the connective tissue to react successfully to the stresses exerted on it.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Sharma</LastName><ForeName>A K</ForeName><Initials>AK</Initials></Author><Author ValidYN="Y"><LastName>Mirza</LastName><ForeName>F D</ForeName><Initials>FD</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>J Prosthet Dent</MedlineTA><NlmUniqueID>0376364</NlmUniqueID><ISSNLinking>0022-3913</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D003285">Contractile Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D016326">Extracellular Matrix Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="C016598">microfibrillar protein</NameOfSubstance></Chemical><Chemical><RegistryNumber>68238-35-7</RegistryNumber><NameOfSubstance UI="D007633">Keratins</NameOfSubstance></Chemical><Chemical><RegistryNumber>9007-34-5</RegistryNumber><NameOfSubstance UI="D003094">Collagen</NameOfSubstance></Chemical></ChemicalList><CitationSubset>D</CitationSubset><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000328" MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000368" MajorTopicYN="N">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001707" MajorTopicYN="N">Biopsy, Needle</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003094" MajorTopicYN="N">Collagen</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003285" MajorTopicYN="N">Contractile Proteins</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003827" MajorTopicYN="Y">Denture, Complete, Upper</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D016326" MajorTopicYN="Y">Extracellular Matrix Proteins</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007575" MajorTopicYN="N">Jaw, Edentulous</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000473" MajorTopicYN="Y">pathology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D007633" MajorTopicYN="N">Keratins</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008875" MajorTopicYN="N">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009061" MajorTopicYN="N">Mouth Mucosa</DescriptorName><QualifierName UI="Q000473" MajorTopicYN="Y">pathology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010159" MajorTopicYN="N">Palate</DescriptorName><QualifierName UI="Q000473" MajorTopicYN="Y">pathology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013314" MajorTopicYN="N">Stress, Mechanical</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1986</Year><Month>11</Month><Day>1</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1986</Year><Month>11</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1986</Year><Month>11</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">2430097</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list></list><tree><noCountry><name sortKey="Mirza, F D" sort="Mirza, F D" uniqKey="Mirza F" first="F D" last="Mirza">F D Mirza</name><name sortKey="Sharma, A K" sort="Sharma, A K" uniqKey="Sharma A" first="A K" last="Sharma">A K Sharma</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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