Osteocyte Density in the Peri-Implant Bone of Immediately Loaded and Submerged Dental Implants
Identifieur interne : 005D33 ( Main/Exploration ); précédent : 005D32; suivant : 005D34Osteocyte Density in the Peri-Implant Bone of Immediately Loaded and Submerged Dental Implants
Auteurs : Raquel R. M. Barros [Brésil] ; Marco Degidi ; Arthur B. Jr Novaes [Brésil] ; Adriano Piattelli [Italie] ; Jamil A. Shibli [Brésil] ; Giovanna Iezzi [Italie]Source :
- Journal of periodontology [ 0022-3492 ] ; 2009.
Descripteurs français
- KwdFr :
- Adaptation physiologique (physiologie), Adulte, Adulte d'âge moyen, Calcification physiologique (physiologie), Contrainte mécanique, Humains, Implants dentaires, Mandibule (anatomopathologie), Moelle osseuse (anatomopathologie), Mâchoire partiellement édentée (), Mâchoire partiellement édentée (rééducation et réadaptation), Mâle, Mécanotransduction cellulaire (physiologie), Numération cellulaire, Ostéo-intégration (physiologie), Ostéocytes (anatomopathologie), Ostéocytes (physiologie), Piliers dentaires, Pose d'implant dentaire endo-osseux (), Propriétés de surface, Prothèse dentaire implanto-portée, Prothèse dentaire partielle provisoire, Prothèse partielle fixe, Remodelage osseux (physiologie).
- MESH :
- anatomopathologie : Mandibule, Moelle osseuse, Ostéocytes.
- physiologie : Adaptation physiologique, Calcification physiologique, Mécanotransduction cellulaire, Ostéo-intégration, Ostéocytes, Remodelage osseux.
- rééducation et réadaptation : Mâchoire partiellement édentée.
- Pascal (Inist)
- Adulte, Adulte d'âge moyen, Contrainte mécanique, Humains, Implants dentaires, Mâchoire partiellement édentée, Mâle, Numération cellulaire, Ostéocyte, Densité, Implant, Os, Dent, Dentisterie, Piliers dentaires, Pose d'implant dentaire endo-osseux, Propriétés de surface, Prothèse dentaire implanto-portée, Prothèse dentaire partielle provisoire, Prothèse partielle fixe.
English descriptors
- KwdEn :
- Adaptation, Physiological (physiology), Adult, Bone, Bone Marrow (pathology), Bone Remodeling (physiology), Calcification, Physiologic (physiology), Cell Count, Density, Dental Abutments, Dental Implantation, Endosseous (methods), Dental Implants, Dental Prosthesis, Implant-Supported, Dentistry, Denture, Partial, Fixed, Denture, Partial, Temporary, Humans, Implant, Jaw, Edentulous, Partially (rehabilitation), Jaw, Edentulous, Partially (surgery), Male, Mandible (pathology), Mechanotransduction, Cellular (physiology), Middle Aged, Osseointegration (physiology), Osteocyte, Osteocytes (pathology), Osteocytes (physiology), Stress, Mechanical, Surface Properties, Tooth.
- MESH :
- chemical : Dental Implants.
- methods : Dental Implantation, Endosseous.
- pathology : Bone Marrow, Mandible, Osteocytes.
- physiology : Adaptation, Physiological, Bone Remodeling, Calcification, Physiologic, Mechanotransduction, Cellular, Osseointegration, Osteocytes.
- rehabilitation : Jaw, Edentulous, Partially.
- surgery : Jaw, Edentulous, Partially.
- Adult, Cell Count, Dental Abutments, Dental Prosthesis, Implant-Supported, Denture, Partial, Fixed, Denture, Partial, Temporary, Humans, Male, Middle Aged, Stress, Mechanical, Surface Properties.
Abstract
Background: The role of osteocytes in bone structure and function remains partially unresolved. Their participation in mechanotransduction, i.e., the conversion of a physical stimulus into a cellular response, has been hypothesized. The present study was an evaluation of the osteocyte density in the peri-implant bone of immediately loaded and submerged dental implants. Methods: Fourteen male patients were included in the study; all of them were partially edentulous and needed a posterior mandibular restoration. Implants were inserted in these areas; half of the sample was loaded immediately (included in a fixed provisional prosthesis on the same day as implant surgery), whereas the other half was left to heal submerged. Fourteen implants (seven immediately loaded and seven unloaded) were retrieved with a trephine after a healing period of 8 weeks. The specimens were treated to obtain thin ground sections, and histomorphometry was used to evaluate the osteocyte index in the peri-implant bone. Results: A higher and statistically significant number of osteocytes was found in the peri-implant bone around immediately loaded implants (P = 0.0081). A correlation between the percentage of bone-implant contact and osteocyte density was found for immediately loaded implants (P= 0.0480) but not for submerged implants (P= 0.2667). Conclusion: The higher number of osteocytes in the peri-implant bone around immediately loaded implants could be related to the functional adaptation required by the loading stimulus, which also explains the hypothesized involvement of the osteocytes in the maintenance of the bone matrix.
Affiliations:
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Le document en format XML
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Barros</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology, School of Dentistry of Ribeirão Preto, University of Sao Paulo</s1><s2>Ribeirão Preto, SP</s2><s3>BRA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Brésil</country><placeName><region type="state">État de São Paulo</region><settlement type="city">São Paulo</settlement></placeName><orgName type="university">Université de São Paulo</orgName></affiliation></author><author><name sortKey="Degidi, Marco" sort="Degidi, Marco" uniqKey="Degidi M" first="Marco" last="Degidi">Marco Degidi</name></author><author><name sortKey="Novaes, Arthur B Jr" sort="Novaes, Arthur B Jr" uniqKey="Novaes A" first="Arthur B. Jr" last="Novaes">Arthur B. 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M." last="Barros">Raquel R. M. Barros</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology, School of Dentistry of Ribeirão Preto, University of Sao Paulo</s1><s2>Ribeirão Preto, SP</s2><s3>BRA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Brésil</country><placeName><region type="state">État de São Paulo</region><settlement type="city">São Paulo</settlement></placeName><orgName type="university">Université de São Paulo</orgName></affiliation></author><author><name sortKey="Degidi, Marco" sort="Degidi, Marco" uniqKey="Degidi M" first="Marco" last="Degidi">Marco Degidi</name></author><author><name sortKey="Novaes, Arthur B Jr" sort="Novaes, Arthur B Jr" uniqKey="Novaes A" first="Arthur B. Jr" last="Novaes">Arthur B. Jr Novaes</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology, School of Dentistry of Ribeirão Preto, University of Sao Paulo</s1><s2>Ribeirão Preto, SP</s2><s3>BRA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Brésil</country><placeName><region type="state">État de São Paulo</region><settlement type="city">São Paulo</settlement></placeName><orgName type="university">Université de São Paulo</orgName></affiliation></author><author><name sortKey="Piattelli, Adriano" sort="Piattelli, Adriano" uniqKey="Piattelli A" first="Adriano" last="Piattelli">Adriano Piattelli</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Dental School, University of Chieti-Pescara</s1><s2>Chieti</s2><s3>ITA</s3><sZ>4 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Italie</country><wicri:noRegion>Chieti</wicri:noRegion></affiliation></author><author><name sortKey="Shibli, Jamil A" sort="Shibli, Jamil A" uniqKey="Shibli J" first="Jamil A." last="Shibli">Jamil A. Shibli</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Department of Periodontology, Dental Research Division, Guarulhos University</s1><s2>Guarulhos, SP</s2><s3>BRA</s3><sZ>5 aut.</sZ></inist:fA14><country>Brésil</country><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Iezzi, Giovanna" sort="Iezzi, Giovanna" uniqKey="Iezzi G" first="Giovanna" last="Iezzi">Giovanna Iezzi</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Dental School, University of Chieti-Pescara</s1><s2>Chieti</s2><s3>ITA</s3><sZ>4 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Italie</country><wicri:noRegion>Chieti</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Journal of periodontology</title><title level="j" type="abbreviated">J. periodontol.</title><idno type="ISSN">0022-3492</idno><imprint><date when="2009">2009</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of periodontology</title><title level="j" type="abbreviated">J. periodontol.</title><idno type="ISSN">0022-3492</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adaptation, Physiological (physiology)</term><term>Adult</term><term>Bone</term><term>Bone Marrow (pathology)</term><term>Bone Remodeling (physiology)</term><term>Calcification, Physiologic (physiology)</term><term>Cell Count</term><term>Density</term><term>Dental Abutments</term><term>Dental Implantation, Endosseous (methods)</term><term>Dental Implants</term><term>Dental Prosthesis, Implant-Supported</term><term>Dentistry</term><term>Denture, Partial, Fixed</term><term>Denture, Partial, Temporary</term><term>Humans</term><term>Implant</term><term>Jaw, Edentulous, Partially (rehabilitation)</term><term>Jaw, Edentulous, Partially (surgery)</term><term>Male</term><term>Mandible (pathology)</term><term>Mechanotransduction, Cellular (physiology)</term><term>Middle Aged</term><term>Osseointegration (physiology)</term><term>Osteocyte</term><term>Osteocytes (pathology)</term><term>Osteocytes (physiology)</term><term>Stress, Mechanical</term><term>Surface Properties</term><term>Tooth</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adaptation physiologique (physiologie)</term><term>Adulte</term><term>Adulte d'âge moyen</term><term>Calcification physiologique (physiologie)</term><term>Contrainte mécanique</term><term>Humains</term><term>Implants dentaires</term><term>Mandibule (anatomopathologie)</term><term>Moelle osseuse (anatomopathologie)</term><term>Mâchoire partiellement édentée ()</term><term>Mâchoire partiellement édentée (rééducation et réadaptation)</term><term>Mâle</term><term>Mécanotransduction cellulaire (physiologie)</term><term>Numération cellulaire</term><term>Ostéo-intégration (physiologie)</term><term>Ostéocytes (anatomopathologie)</term><term>Ostéocytes (physiologie)</term><term>Piliers dentaires</term><term>Pose d'implant dentaire endo-osseux ()</term><term>Propriétés de surface</term><term>Prothèse dentaire implanto-portée</term><term>Prothèse dentaire partielle provisoire</term><term>Prothèse partielle fixe</term><term>Remodelage osseux (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Dental Implants</term></keywords><keywords scheme="MESH" qualifier="anatomopathologie" xml:lang="fr"><term>Mandibule</term><term>Moelle osseuse</term><term>Ostéocytes</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Dental Implantation, Endosseous</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Bone Marrow</term><term>Mandible</term><term>Osteocytes</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Adaptation physiologique</term><term>Calcification physiologique</term><term>Mécanotransduction cellulaire</term><term>Ostéo-intégration</term><term>Ostéocytes</term><term>Remodelage osseux</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Adaptation, Physiological</term><term>Bone Remodeling</term><term>Calcification, Physiologic</term><term>Mechanotransduction, Cellular</term><term>Osseointegration</term><term>Osteocytes</term></keywords><keywords scheme="MESH" qualifier="rehabilitation" xml:lang="en"><term>Jaw, Edentulous, Partially</term></keywords><keywords scheme="MESH" qualifier="rééducation et réadaptation" xml:lang="fr"><term>Mâchoire partiellement édentée</term></keywords><keywords scheme="MESH" qualifier="surgery" xml:lang="en"><term>Jaw, Edentulous, Partially</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Cell Count</term><term>Dental Abutments</term><term>Dental Prosthesis, Implant-Supported</term><term>Denture, Partial, Fixed</term><term>Denture, Partial, Temporary</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Stress, Mechanical</term><term>Surface Properties</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Adulte</term><term>Adulte d'âge moyen</term><term>Contrainte mécanique</term><term>Humains</term><term>Implants dentaires</term><term>Mâchoire partiellement édentée</term><term>Mâle</term><term>Numération cellulaire</term><term>Ostéocyte</term><term>Densité</term><term>Implant</term><term>Os</term><term>Dent</term><term>Dentisterie</term><term>Piliers dentaires</term><term>Pose d'implant dentaire endo-osseux</term><term>Propriétés de surface</term><term>Prothèse dentaire implanto-portée</term><term>Prothèse dentaire partielle provisoire</term><term>Prothèse partielle fixe</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Background: The role of osteocytes in bone structure and function remains partially unresolved. Their participation in mechanotransduction, i.e., the conversion of a physical stimulus into a cellular response, has been hypothesized. The present study was an evaluation of the osteocyte density in the peri-implant bone of immediately loaded and submerged dental implants. Methods: Fourteen male patients were included in the study; all of them were partially edentulous and needed a posterior mandibular restoration. Implants were inserted in these areas; half of the sample was loaded immediately (included in a fixed provisional prosthesis on the same day as implant surgery), whereas the other half was left to heal submerged. Fourteen implants (seven immediately loaded and seven unloaded) were retrieved with a trephine after a healing period of 8 weeks. The specimens were treated to obtain thin ground sections, and histomorphometry was used to evaluate the osteocyte index in the peri-implant bone. Results: A higher and statistically significant number of osteocytes was found in the peri-implant bone around immediately loaded implants (P = 0.0081). A correlation between the percentage of bone-implant contact and osteocyte density was found for immediately loaded implants (P= 0.0480) but not for submerged implants (P= 0.2667). Conclusion: The higher number of osteocytes in the peri-implant bone around immediately loaded implants could be related to the functional adaptation required by the loading stimulus, which also explains the hypothesized involvement of the osteocytes in the maintenance of the bone matrix.</div></front></TEI><affiliations><list><country><li>Brésil</li><li>Italie</li></country><region><li>État de São Paulo</li></region><settlement><li>São Paulo</li></settlement><orgName><li>Université de São Paulo</li></orgName></list><tree><noCountry><name sortKey="Degidi, Marco" sort="Degidi, Marco" uniqKey="Degidi M" first="Marco" last="Degidi">Marco Degidi</name></noCountry><country name="Brésil"><region name="État de São Paulo"><name sortKey="Barros, Raquel R M" sort="Barros, Raquel R M" uniqKey="Barros R" first="Raquel R. M." last="Barros">Raquel R. M. Barros</name></region><name sortKey="Novaes, Arthur B Jr" sort="Novaes, Arthur B Jr" uniqKey="Novaes A" first="Arthur B. Jr" last="Novaes">Arthur B. Jr Novaes</name><name sortKey="Shibli, Jamil A" sort="Shibli, Jamil A" uniqKey="Shibli J" first="Jamil A." last="Shibli">Jamil A. Shibli</name></country><country name="Italie"><noRegion><name sortKey="Piattelli, Adriano" sort="Piattelli, Adriano" uniqKey="Piattelli A" first="Adriano" last="Piattelli">Adriano Piattelli</name></noRegion><name sortKey="Iezzi, Giovanna" sort="Iezzi, Giovanna" uniqKey="Iezzi G" first="Giovanna" last="Iezzi">Giovanna Iezzi</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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