The role of quantitative single photon emission computerized tomography (SPECT) in the osseous integration process of dental implants
Identifieur interne : 009064 ( Main/Exploration ); précédent : 009063; suivant : 009065The role of quantitative single photon emission computerized tomography (SPECT) in the osseous integration process of dental implants
Auteurs : O. Khan [Trinité-et-Tobago] ; A. Archibald [Trinité-et-Tobago] ; E. Thomson [Trinité-et-Tobago] ; P. Maharaj [Trinité-et-Tobago]Source :
- Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics [ 1079-2104 ] ; 2000.
Descripteurs français
- KwdFr :
- Adulte d'âge moyen, Femelle, Humains, Implants dentaires, Mâchoire édentée (imagerie diagnostique), Mâchoire édentée (rééducation et réadaptation), Mâle, Médronate de technétium (99mTc), Ostéo-intégration, Ostéoblastes (physiologie), Pose d'implant dentaire endo-osseux, Radiographie, Tomographie par émission monophotonique (utilisation).
- MESH :
- imagerie diagnostique : Mâchoire édentée.
- physiologie : Ostéoblastes.
- rééducation et réadaptation : Mâchoire édentée.
- utilisation : Tomographie par émission monophotonique.
- Pascal (Inist)
- Adulte d'âge moyen, Femelle, Humains, Implants dentaires, Mâle, Médronate de technétium (99mTc), Ostéo-intégration, Pose d'implant dentaire endo-osseux, Radiographie, Tomoscintigraphie, Photon, Exploration, Implant, Titane, Dent, Biomatériau, Analyse quantitative, Tissu osseux, Edentation, Mandibule, Evaluation performance, Ostéointégration, Ostéoblaste, Densité intégration, Coefficient activité, Adulte, Antilles, Activité ostéoblastique.
- Wicri :
- topic : Titane, Biomatériau, Analyse quantitative, Adulte.
English descriptors
- KwdEn :
- Activity coefficient, Adult, Biomaterial, Dental Implantation, Endosseous, Dental Implants, Edentulousness, Emission tomography, Exploration, Female, Humans, Implant, Integration density, Jaw, Edentulous (diagnostic imaging), Jaw, Edentulous (rehabilitation), Male, Mandible, Middle Aged, Osseointegration, Osseous tissue, Osteoblast, Osteoblastic activity, Osteoblasts (physiology), Osteointegration, Performance evaluation, Photon, Quantitative analysis, Radiography, Technetium Tc 99m Medronate, Titanium, Tomography, Emission-Computed, Single-Photon (utilization), Tooth, West Indies.
- MESH :
- chemical : Dental Implants, Technetium Tc 99m Medronate.
- diagnostic imaging : Jaw, Edentulous.
- physiology : Osteoblasts.
- rehabilitation : Jaw, Edentulous.
- utilization : Tomography, Emission-Computed, Single-Photon.
- Dental Implantation, Endosseous, Female, Humans, Male, Middle Aged, Osseointegration, Radiography.
Abstract
Objective. To evaluate the integration process of endosseous dental implants by using quantitative bone single photon emission computerized tomography (SPECT). Methods. Five consecutive patients receiving titanium implants (Astra Tech, Mölndal, Sweden) in the normal edentulous jaw were evaluated by bone SPECT before loading and at regular intervals up to 5 months after loading. Osteoblastic activity at the implant site was compared with activity within the skull (reference) to calculate an osteoblastic activity index (Al). Results. A time activity curve obtained by plotting Al against time over 5 months showed 3 distinct phases of osteoblastic activity: (1) a rise in osteoblastic activity, part of which may reflect postoperative changes, (2) maximum activity about 1 month after implant, and (3) a gradual falloff in the Al, which returned to pre-implant levels at about 4 months. Conclusions. We conclude that this method offers a simple, reproducible, objective, and physiologic approach to studying the osseous integration process that occurs after endosseous dental implants. In this small series of patients, this osseous integrative process appears to have become established approximately 4 months after loading. This method also has the capability of quantitating bone activity in absolute terms of μCi/gram (microcuries per gram) and can be useful when bone grafting and other surgical procedures are involved.
Affiliations:
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Le document en format XML
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<term>Adult</term>
<term>Biomaterial</term>
<term>Dental Implantation, Endosseous</term>
<term>Dental Implants</term>
<term>Edentulousness</term>
<term>Emission tomography</term>
<term>Exploration</term>
<term>Female</term>
<term>Humans</term>
<term>Implant</term>
<term>Integration density</term>
<term>Jaw, Edentulous (diagnostic imaging)</term>
<term>Jaw, Edentulous (rehabilitation)</term>
<term>Male</term>
<term>Mandible</term>
<term>Middle Aged</term>
<term>Osseointegration</term>
<term>Osseous tissue</term>
<term>Osteoblast</term>
<term>Osteoblastic activity</term>
<term>Osteoblasts (physiology)</term>
<term>Osteointegration</term>
<term>Performance evaluation</term>
<term>Photon</term>
<term>Quantitative analysis</term>
<term>Radiography</term>
<term>Technetium Tc 99m Medronate</term>
<term>Titanium</term>
<term>Tomography, Emission-Computed, Single-Photon (utilization)</term>
<term>Tooth</term>
<term>West Indies</term>
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<keywords scheme="KwdFr" xml:lang="fr"><term>Adulte d'âge moyen</term>
<term>Femelle</term>
<term>Humains</term>
<term>Implants dentaires</term>
<term>Mâchoire édentée (imagerie diagnostique)</term>
<term>Mâchoire édentée (rééducation et réadaptation)</term>
<term>Mâle</term>
<term>Médronate de technétium (99mTc)</term>
<term>Ostéo-intégration</term>
<term>Ostéoblastes (physiologie)</term>
<term>Pose d'implant dentaire endo-osseux</term>
<term>Radiographie</term>
<term>Tomographie par émission monophotonique (utilisation)</term>
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<term>Technetium Tc 99m Medronate</term>
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<keywords scheme="MESH" xml:lang="en"><term>Dental Implantation, Endosseous</term>
<term>Female</term>
<term>Humans</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Osseointegration</term>
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<term>Femelle</term>
<term>Humains</term>
<term>Implants dentaires</term>
<term>Mâle</term>
<term>Médronate de technétium (99mTc)</term>
<term>Ostéo-intégration</term>
<term>Pose d'implant dentaire endo-osseux</term>
<term>Radiographie</term>
<term>Tomoscintigraphie</term>
<term>Photon</term>
<term>Exploration</term>
<term>Implant</term>
<term>Titane</term>
<term>Dent</term>
<term>Biomatériau</term>
<term>Analyse quantitative</term>
<term>Tissu osseux</term>
<term>Edentation</term>
<term>Mandibule</term>
<term>Evaluation performance</term>
<term>Ostéointégration</term>
<term>Ostéoblaste</term>
<term>Densité intégration</term>
<term>Coefficient activité</term>
<term>Adulte</term>
<term>Antilles</term>
<term>Activité ostéoblastique</term>
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<front><div type="abstract" xml:lang="en">Objective. To evaluate the integration process of endosseous dental implants by using quantitative bone single photon emission computerized tomography (SPECT). Methods. Five consecutive patients receiving titanium implants (Astra Tech, Mölndal, Sweden) in the normal edentulous jaw were evaluated by bone SPECT before loading and at regular intervals up to 5 months after loading. Osteoblastic activity at the implant site was compared with activity within the skull (reference) to calculate an osteoblastic activity index (Al). Results. A time activity curve obtained by plotting Al against time over 5 months showed 3 distinct phases of osteoblastic activity: (1) a rise in osteoblastic activity, part of which may reflect postoperative changes, (2) maximum activity about 1 month after implant, and (3) a gradual falloff in the Al, which returned to pre-implant levels at about 4 months. Conclusions. We conclude that this method offers a simple, reproducible, objective, and physiologic approach to studying the osseous integration process that occurs after endosseous dental implants. In this small series of patients, this osseous integrative process appears to have become established approximately 4 months after loading. This method also has the capability of quantitating bone activity in absolute terms of μCi/gram (microcuries per gram) and can be useful when bone grafting and other surgical procedures are involved.</div>
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