Two‐stage IMZ implants and ITI implants inserted in a single‐stage procedure
Identifieur interne : 008343 ( Main/Exploration ); précédent : 008342; suivant : 008344Two‐stage IMZ implants and ITI implants inserted in a single‐stage procedure
Auteurs : Kees Heydenrijk [Pays-Bas] ; Gerry M. Raghoebar [Pays-Bas] ; Henny J. A. Meijer [Pays-Bas] ; Willy A. Van Der Reijden [Pays-Bas] ; Arie Jan Van Winkelhoff [Pays-Bas] ; Boudewijn Stegenga [Pays-Bas]Source :
- Clinical Oral Implants Research [ 0905-7161 ] ; 2002-08.
Descripteurs français
- KwdFr :
- Adulte d'âge moyen, Analyse appariée, Analyse de régression, Bacteroides (isolement et purification), Conception de prothèse dentaire, Femelle, Humains, Implants dentaires (), Implants dentaires (microbiologie), Indice de plaque dentaire, Loi du khi-deux, Mâchoire édentée (), Mâchoire édentée (rééducation et réadaptation), Mâle, Ostéo-intégration, Overdenture, Poche parodontale (), Porphyromonas gingivalis (isolement et purification), Pose d'implant dentaire endo-osseux (), Prevotella intermedia (isolement et purification), Propriétés de surface, Prothèse dentaire implanto-portée, Résorption alvéolaire (), Résorption alvéolaire (microbiologie), Résultat thérapeutique, Rétention d'appareil de prothèse dentaire, Statistique non paramétrique, Échec de restauration dentaire, Études de faisabilité, Études de suivi, Études prospectives.
- MESH :
- isolement et purification : Bacteroides, Porphyromonas gingivalis, Prevotella intermedia.
- microbiologie : Implants dentaires, Résorption alvéolaire.
- rééducation et réadaptation : Mâchoire édentée.
- Wicri :
- topic : Adulte d'âge moyen, Analyse appariée, Analyse de régression, Conception de prothèse dentaire, Femelle, Humains, Implants dentaires, Indice de plaque dentaire, Loi du khi-deux, Micro-organisme, Mâchoire édentée, Mâle, Ostéo-intégration, Overdenture, Poche parodontale, Pose d'implant dentaire endo-osseux, Propriétés de surface, Prothèse dentaire implanto-portée, Résorption alvéolaire, Résultat thérapeutique, Rétention d'appareil de prothèse dentaire, Statistique non paramétrique, Titane, Échec de restauration dentaire, Études de faisabilité, Études de suivi, Études prospectives.
English descriptors
- KwdEn :
- Abutment, Actinobacillus actinomycetemcomitans, Alveolar Bone Loss (classification), Alveolar Bone Loss (microbiology), Bacteroides (isolation & purification), Baseline examination, Batenburg, Bone loss, Buser, Calculus, Chi-Square Distribution, Clin, Clinical microbiology, Clinical parameters, Clinical periodontology, Colonisation, Colonization, Crestal, Crestal bone loss, Crestal level, Danser, Dental Implantation, Endosseous (methods), Dental Implants (classification), Dental Implants (microbiology), Dental Plaque Index, Dental Prosthesis Design, Dental Prosthesis, Implant-Supported, Dental Restoration Failure, Dental implants, Denture, Denture Retention, Denture, Overlay, Edentulous, Edentulous patients, Ericsson, Evaluation period, Feasibility Studies, Female, Follow-Up Studies, Frequency distribution, Friedman test, Gingivalis, Heydenrijk, High incidence, Humans, Impl, Implant, Implant insertion, Implant sites, Implant system, Implant systems, Implants research, Insertion, International journal, Jaw, Edentulous (rehabilitation), Jaw, Edentulous (surgery), Lindhe, Male, Mandible, Mandibular, Mandibular denture, Marginal bone loss, Matched-Pair Analysis, Maxillofacial, Maxillofacial implants, Maxillofacial prosthetics, Maxillofacial surgery, Meijer, Microbiological, Microgap, Microorganism, Middle Aged, Mombelli, Mucosa score, Nonsubmerged, Nonsubmerged implants, Nonsubmerged procedure, Nonsubmerged titanium implants, Observation period, Oral impl, Oral implantology, Osseointegrated, Osseointegrated implants, Osseointegration, Osseointegration period, Overdenture, Overdentures, Pathogen, Periodontal, Periodontal Pocket (classification), Periodontal pathogens, Periodontology, Plaque, Plaque score, Pocket depth, Porphyromonas gingivalis, Porphyromonas gingivalis (isolation & purification), Present study, Prevotella intermedia (isolation & purification), Prospective Studies, Quirynen, Radiograph, Radiographic, Radiographic evaluation, Radiographic view, Regression Analysis, Soft tissues, Sola fase, Statistics, Nonparametric, Surface Properties, Surgical procedure, Target microorganisms, Titanium, Titanium implants, Treatment Outcome, Winkelhoff, Winkelhoff wolf.
- MESH :
- chemical , classification : Dental Implants.
- classification : Alveolar Bone Loss, Periodontal Pocket.
- isolation & purification : Bacteroides, Porphyromonas gingivalis, Prevotella intermedia.
- methods : Dental Implantation, Endosseous.
- microbiology : Alveolar Bone Loss, Dental Implants.
- rehabilitation : Jaw, Edentulous.
- surgery : Jaw, Edentulous.
- Teeft :
- Abutment, Actinobacillus actinomycetemcomitans, Baseline examination, Batenburg, Bone loss, Buser, Calculus, Chi-Square Distribution, Clin, Clinical microbiology, Clinical parameters, Clinical periodontology, Colonisation, Colonization, Crestal, Crestal bone loss, Crestal level, Danser, Dental Plaque Index, Dental Prosthesis Design, Dental Prosthesis, Implant-Supported, Dental Restoration Failure, Dental implants, Denture, Denture Retention, Denture, Overlay, Edentulous, Edentulous patients, Ericsson, Evaluation period, Feasibility Studies, Female, Follow-Up Studies, Frequency distribution, Friedman test, Gingivalis, Heydenrijk, High incidence, Humans, Impl, Implant, Implant insertion, Implant sites, Implant system, Implant systems, Implants research, Insertion, International journal, Lindhe, Male, Mandible, Mandibular, Mandibular denture, Marginal bone loss, Matched-Pair Analysis, Maxillofacial, Maxillofacial implants, Maxillofacial prosthetics, Maxillofacial surgery, Meijer, Microbiological, Microgap, Microorganism, Middle Aged, Mombelli, Mucosa score, Nonsubmerged, Nonsubmerged implants, Nonsubmerged procedure, Nonsubmerged titanium implants, Observation period, Oral impl, Oral implantology, Osseointegrated, Osseointegrated implants, Osseointegration, Osseointegration period, Overdenture, Overdentures, Pathogen, Periodontal, Periodontal pathogens, Periodontology, Plaque, Plaque score, Pocket depth, Porphyromonas gingivalis, Present study, Prospective Studies, Quirynen, Radiograph, Radiographic, Radiographic evaluation, Radiographic view, Regression Analysis, Soft tissues, Sola fase, Statistics, Nonparametric, Surface Properties, Surgical procedure, Target microorganisms, Titanium, Titanium implants, Treatment Outcome, Winkelhoff, Winkelhoff wolf.
Abstract
Abstract: The aim of this study was to evaluate the feasibility of using a two‐stage implant system in a single‐stage procedure and to study the impact of the microgap at crestal level and to monitor the microflora in the peri‐implant area. Forty edentulous patients (Cawood & Howell class V–VI) participated in this study. After randomisation, 20 patients received two IMZ implants inserted in a single‐stage procedure and 20 patients received two ITI implants. After 3 months, overdentures were fabricated, supported by a bar and clip attachment. A standardised clinical and radiographic evaluation was performed immediately after denture insertion and 6 and 12 months later. Twelve months after loading, peri‐implant samples were collected with sterile paper points and analysed for the presence of putative periodontal pathogens using culture techniques. One IMZ implant was lost due to insufficient osseointegration. With regard to the clinical parameters at the 12 months evaluation, significant differences for plaque score and probing pocket depth (IMZ: mean 3.3 mm, ITI: mean 2.9 mm) were found between the two groups. The mean bone loss in the first year of functioning was 0.6 mm for both groups. Prevotella intermedia was detected more often in the ITI group (12 implants) than in the IMZ group (three implants). Porphyromonas gingivalis was found in three patients. In one of these patients an implant showed bone loss of 1.6 mm between T0 and T12. Some associations were found between clinical parameters and the target microorganisms in the ITI group. These associations were not present in the IMZ group. The short‐term results indicate that two‐stage implants inserted in a single‐stage procedure may be as predictable as one‐stage implants. The microgap at crestal level in nonsubmerged IMZ implants seems to have no adverse influence on the peri‐implant microbiological colonisation and of crestal bone loss in the first year of functioning. The peri‐implant sulcus can and does harbour potential periodontal pathogens without signs of peri‐implantitis during the evaluation period of 1 year.
Url:
DOI: 10.1034/j.1600-0501.2002.130405.x
Affiliations:
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Raghoebar, Henny J.A. Meijer, Boudewijn Stegenga, Department ofOral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital Groningen.Willy A. van der Reijden, Arie Jan vanWinkelhoff, Department of Oral Biology, Section of Clinical Periodontal Microbiology, Academic Centre for Dentistry Amsterdam</wicri:regionArea><wicri:noRegion>Academic Centre for Dentistry Amsterdam</wicri:noRegion></affiliation></author><author><name sortKey="Raghoebar, Gerry M" sort="Raghoebar, Gerry M" uniqKey="Raghoebar G" first="Gerry M." last="Raghoebar">Gerry M. Raghoebar</name><affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Pays-Bas</country><wicri:regionArea>Kees Heydenrijk, Gerry M. Raghoebar, Henny J.A. Meijer, Boudewijn Stegenga, Department ofOral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital Groningen.Willy A. van der Reijden, Arie Jan vanWinkelhoff, Department of Oral Biology, Section of Clinical Periodontal Microbiology, Academic Centre for Dentistry Amsterdam</wicri:regionArea><wicri:noRegion>Academic Centre for Dentistry Amsterdam</wicri:noRegion></affiliation></author><author><name sortKey="Meijer, Henny J A" sort="Meijer, Henny J A" uniqKey="Meijer H" first="Henny J. A." last="Meijer">Henny J. A. Meijer</name><affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Pays-Bas</country><wicri:regionArea>Kees Heydenrijk, Gerry M. Raghoebar, Henny J.A. Meijer, Boudewijn Stegenga, Department ofOral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital Groningen.Willy A. van der Reijden, Arie Jan vanWinkelhoff, Department of Oral Biology, Section of Clinical Periodontal Microbiology, Academic Centre for Dentistry Amsterdam</wicri:regionArea><wicri:noRegion>Academic Centre for Dentistry Amsterdam</wicri:noRegion></affiliation></author><author><name sortKey="Van Der Reijden, Willy A" sort="Van Der Reijden, Willy A" uniqKey="Van Der Reijden W" first="Willy A." last="Van Der Reijden">Willy A. Van Der Reijden</name><affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Pays-Bas</country><wicri:regionArea>Kees Heydenrijk, Gerry M. Raghoebar, Henny J.A. Meijer, Boudewijn Stegenga, Department ofOral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital Groningen.Willy A. van der Reijden, Arie Jan vanWinkelhoff, Department of Oral Biology, Section of Clinical Periodontal Microbiology, Academic Centre for Dentistry Amsterdam</wicri:regionArea><wicri:noRegion>Academic Centre for Dentistry Amsterdam</wicri:noRegion></affiliation></author><author><name sortKey="Van Winkelhoff, Arie Jan" sort="Van Winkelhoff, Arie Jan" uniqKey="Van Winkelhoff A" first="Arie Jan" last="Van Winkelhoff">Arie Jan Van Winkelhoff</name><affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Pays-Bas</country><wicri:regionArea>Kees Heydenrijk, Gerry M. Raghoebar, Henny J.A. Meijer, Boudewijn Stegenga, Department ofOral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital Groningen.Willy A. van der Reijden, Arie Jan vanWinkelhoff, Department of Oral Biology, Section of Clinical Periodontal Microbiology, Academic Centre for Dentistry Amsterdam</wicri:regionArea><wicri:noRegion>Academic Centre for Dentistry Amsterdam</wicri:noRegion></affiliation></author><author><name sortKey="Stegenga, Boudewijn" sort="Stegenga, Boudewijn" uniqKey="Stegenga B" first="Boudewijn" last="Stegenga">Boudewijn Stegenga</name><affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Pays-Bas</country><wicri:regionArea>Kees Heydenrijk, Gerry M. Raghoebar, Henny J.A. Meijer, Boudewijn Stegenga, Department ofOral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital Groningen.Willy A. van der Reijden, Arie Jan vanWinkelhoff, Department of Oral Biology, Section of Clinical Periodontal Microbiology, Academic Centre for Dentistry Amsterdam</wicri:regionArea><wicri:noRegion>Academic Centre for Dentistry Amsterdam</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Clinical Oral Implants Research</title><title level="j" type="alt">CLINICAL ORAL IMPLANTS RESEARCH</title><idno type="ISSN">0905-7161</idno><idno type="eISSN">1600-0501</idno><imprint><biblScope unit="vol">13</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="371">371</biblScope><biblScope unit="page" to="380">380</biblScope><biblScope unit="page-count">10</biblScope><publisher>Blackwell Science, Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2002-08">2002-08</date></imprint><idno type="ISSN">0905-7161</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0905-7161</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Abutment</term><term>Actinobacillus actinomycetemcomitans</term><term>Alveolar Bone Loss (classification)</term><term>Alveolar Bone Loss (microbiology)</term><term>Bacteroides (isolation & purification)</term><term>Baseline examination</term><term>Batenburg</term><term>Bone loss</term><term>Buser</term><term>Calculus</term><term>Chi-Square Distribution</term><term>Clin</term><term>Clinical microbiology</term><term>Clinical parameters</term><term>Clinical periodontology</term><term>Colonisation</term><term>Colonization</term><term>Crestal</term><term>Crestal bone loss</term><term>Crestal level</term><term>Danser</term><term>Dental Implantation, Endosseous (methods)</term><term>Dental Implants (classification)</term><term>Dental Implants (microbiology)</term><term>Dental Plaque Index</term><term>Dental Prosthesis Design</term><term>Dental Prosthesis, Implant-Supported</term><term>Dental Restoration Failure</term><term>Dental implants</term><term>Denture</term><term>Denture Retention</term><term>Denture, Overlay</term><term>Edentulous</term><term>Edentulous patients</term><term>Ericsson</term><term>Evaluation period</term><term>Feasibility Studies</term><term>Female</term><term>Follow-Up Studies</term><term>Frequency distribution</term><term>Friedman test</term><term>Gingivalis</term><term>Heydenrijk</term><term>High incidence</term><term>Humans</term><term>Impl</term><term>Implant</term><term>Implant insertion</term><term>Implant sites</term><term>Implant system</term><term>Implant systems</term><term>Implants research</term><term>Insertion</term><term>International journal</term><term>Jaw, Edentulous (rehabilitation)</term><term>Jaw, Edentulous (surgery)</term><term>Lindhe</term><term>Male</term><term>Mandible</term><term>Mandibular</term><term>Mandibular denture</term><term>Marginal bone loss</term><term>Matched-Pair Analysis</term><term>Maxillofacial</term><term>Maxillofacial implants</term><term>Maxillofacial prosthetics</term><term>Maxillofacial surgery</term><term>Meijer</term><term>Microbiological</term><term>Microgap</term><term>Microorganism</term><term>Middle Aged</term><term>Mombelli</term><term>Mucosa score</term><term>Nonsubmerged</term><term>Nonsubmerged implants</term><term>Nonsubmerged procedure</term><term>Nonsubmerged titanium implants</term><term>Observation period</term><term>Oral impl</term><term>Oral implantology</term><term>Osseointegrated</term><term>Osseointegrated implants</term><term>Osseointegration</term><term>Osseointegration period</term><term>Overdenture</term><term>Overdentures</term><term>Pathogen</term><term>Periodontal</term><term>Periodontal Pocket (classification)</term><term>Periodontal pathogens</term><term>Periodontology</term><term>Plaque</term><term>Plaque score</term><term>Pocket depth</term><term>Porphyromonas gingivalis</term><term>Porphyromonas gingivalis (isolation & purification)</term><term>Present study</term><term>Prevotella intermedia (isolation & purification)</term><term>Prospective Studies</term><term>Quirynen</term><term>Radiograph</term><term>Radiographic</term><term>Radiographic evaluation</term><term>Radiographic view</term><term>Regression Analysis</term><term>Soft tissues</term><term>Sola fase</term><term>Statistics, Nonparametric</term><term>Surface Properties</term><term>Surgical procedure</term><term>Target microorganisms</term><term>Titanium</term><term>Titanium implants</term><term>Treatment Outcome</term><term>Winkelhoff</term><term>Winkelhoff wolf</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte d'âge moyen</term><term>Analyse appariée</term><term>Analyse de régression</term><term>Bacteroides (isolement et purification)</term><term>Conception de prothèse dentaire</term><term>Femelle</term><term>Humains</term><term>Implants dentaires ()</term><term>Implants dentaires (microbiologie)</term><term>Indice de plaque dentaire</term><term>Loi du khi-deux</term><term>Mâchoire édentée ()</term><term>Mâchoire édentée (rééducation et réadaptation)</term><term>Mâle</term><term>Ostéo-intégration</term><term>Overdenture</term><term>Poche parodontale ()</term><term>Porphyromonas gingivalis (isolement et purification)</term><term>Pose d'implant dentaire endo-osseux ()</term><term>Prevotella intermedia (isolement et purification)</term><term>Propriétés de surface</term><term>Prothèse dentaire implanto-portée</term><term>Résorption alvéolaire ()</term><term>Résorption alvéolaire (microbiologie)</term><term>Résultat thérapeutique</term><term>Rétention d'appareil de prothèse dentaire</term><term>Statistique non paramétrique</term><term>Échec de restauration dentaire</term><term>Études de faisabilité</term><term>Études de suivi</term><term>Études prospectives</term></keywords><keywords scheme="MESH" type="chemical" qualifier="classification" xml:lang="en"><term>Dental Implants</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Alveolar Bone Loss</term><term>Periodontal Pocket</term></keywords><keywords scheme="MESH" qualifier="isolation & purification" xml:lang="en"><term>Bacteroides</term><term>Porphyromonas gingivalis</term><term>Prevotella intermedia</term></keywords><keywords scheme="MESH" qualifier="isolement et purification" xml:lang="fr"><term>Bacteroides</term><term>Porphyromonas gingivalis</term><term>Prevotella intermedia</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Dental Implantation, Endosseous</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Implants dentaires</term><term>Résorption alvéolaire</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Alveolar Bone Loss</term><term>Dental Implants</term></keywords><keywords scheme="MESH" qualifier="rehabilitation" xml:lang="en"><term>Jaw, Edentulous</term></keywords><keywords scheme="MESH" qualifier="rééducation et réadaptation" xml:lang="fr"><term>Mâchoire édentée</term></keywords><keywords scheme="MESH" qualifier="surgery" xml:lang="en"><term>Jaw, Edentulous</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Abutment</term><term>Actinobacillus actinomycetemcomitans</term><term>Baseline examination</term><term>Batenburg</term><term>Bone loss</term><term>Buser</term><term>Calculus</term><term>Chi-Square Distribution</term><term>Clin</term><term>Clinical microbiology</term><term>Clinical parameters</term><term>Clinical periodontology</term><term>Colonisation</term><term>Colonization</term><term>Crestal</term><term>Crestal bone loss</term><term>Crestal level</term><term>Danser</term><term>Dental Plaque Index</term><term>Dental Prosthesis Design</term><term>Dental Prosthesis, Implant-Supported</term><term>Dental Restoration Failure</term><term>Dental implants</term><term>Denture</term><term>Denture Retention</term><term>Denture, Overlay</term><term>Edentulous</term><term>Edentulous patients</term><term>Ericsson</term><term>Evaluation period</term><term>Feasibility Studies</term><term>Female</term><term>Follow-Up Studies</term><term>Frequency distribution</term><term>Friedman test</term><term>Gingivalis</term><term>Heydenrijk</term><term>High incidence</term><term>Humans</term><term>Impl</term><term>Implant</term><term>Implant insertion</term><term>Implant sites</term><term>Implant system</term><term>Implant systems</term><term>Implants research</term><term>Insertion</term><term>International journal</term><term>Lindhe</term><term>Male</term><term>Mandible</term><term>Mandibular</term><term>Mandibular denture</term><term>Marginal bone loss</term><term>Matched-Pair Analysis</term><term>Maxillofacial</term><term>Maxillofacial implants</term><term>Maxillofacial prosthetics</term><term>Maxillofacial surgery</term><term>Meijer</term><term>Microbiological</term><term>Microgap</term><term>Microorganism</term><term>Middle Aged</term><term>Mombelli</term><term>Mucosa score</term><term>Nonsubmerged</term><term>Nonsubmerged implants</term><term>Nonsubmerged procedure</term><term>Nonsubmerged titanium implants</term><term>Observation period</term><term>Oral impl</term><term>Oral implantology</term><term>Osseointegrated</term><term>Osseointegrated implants</term><term>Osseointegration</term><term>Osseointegration period</term><term>Overdenture</term><term>Overdentures</term><term>Pathogen</term><term>Periodontal</term><term>Periodontal pathogens</term><term>Periodontology</term><term>Plaque</term><term>Plaque score</term><term>Pocket depth</term><term>Porphyromonas gingivalis</term><term>Present study</term><term>Prospective Studies</term><term>Quirynen</term><term>Radiograph</term><term>Radiographic</term><term>Radiographic evaluation</term><term>Radiographic view</term><term>Regression Analysis</term><term>Soft tissues</term><term>Sola fase</term><term>Statistics, Nonparametric</term><term>Surface Properties</term><term>Surgical procedure</term><term>Target microorganisms</term><term>Titanium</term><term>Titanium implants</term><term>Treatment Outcome</term><term>Winkelhoff</term><term>Winkelhoff wolf</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Adulte d'âge moyen</term><term>Analyse appariée</term><term>Analyse de régression</term><term>Conception de prothèse dentaire</term><term>Femelle</term><term>Humains</term><term>Implants dentaires</term><term>Indice de plaque dentaire</term><term>Loi du khi-deux</term><term>Micro-organisme</term><term>Mâchoire édentée</term><term>Mâle</term><term>Ostéo-intégration</term><term>Overdenture</term><term>Poche parodontale</term><term>Pose d'implant dentaire endo-osseux</term><term>Propriétés de surface</term><term>Prothèse dentaire implanto-portée</term><term>Résorption alvéolaire</term><term>Résultat thérapeutique</term><term>Rétention d'appareil de prothèse dentaire</term><term>Statistique non paramétrique</term><term>Titane</term><term>Échec de restauration dentaire</term><term>Études de faisabilité</term><term>Études de suivi</term><term>Études prospectives</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract">Abstract: The aim of this study was to evaluate the feasibility of using a two‐stage implant system in a single‐stage procedure and to study the impact of the microgap at crestal level and to monitor the microflora in the peri‐implant area. Forty edentulous patients (Cawood & Howell class V–VI) participated in this study. After randomisation, 20 patients received two IMZ implants inserted in a single‐stage procedure and 20 patients received two ITI implants. After 3 months, overdentures were fabricated, supported by a bar and clip attachment. A standardised clinical and radiographic evaluation was performed immediately after denture insertion and 6 and 12 months later. Twelve months after loading, peri‐implant samples were collected with sterile paper points and analysed for the presence of putative periodontal pathogens using culture techniques. One IMZ implant was lost due to insufficient osseointegration. With regard to the clinical parameters at the 12 months evaluation, significant differences for plaque score and probing pocket depth (IMZ: mean 3.3 mm, ITI: mean 2.9 mm) were found between the two groups. The mean bone loss in the first year of functioning was 0.6 mm for both groups. Prevotella intermedia was detected more often in the ITI group (12 implants) than in the IMZ group (three implants). Porphyromonas gingivalis was found in three patients. In one of these patients an implant showed bone loss of 1.6 mm between T0 and T12. Some associations were found between clinical parameters and the target microorganisms in the ITI group. These associations were not present in the IMZ group. The short‐term results indicate that two‐stage implants inserted in a single‐stage procedure may be as predictable as one‐stage implants. The microgap at crestal level in nonsubmerged IMZ implants seems to have no adverse influence on the peri‐implant microbiological colonisation and of crestal bone loss in the first year of functioning. The peri‐implant sulcus can and does harbour potential periodontal pathogens without signs of peri‐implantitis during the evaluation period of 1 year.</div></front></TEI><affiliations><list><country><li>Pays-Bas</li></country></list><tree><country name="Pays-Bas"><noRegion><name sortKey="Heydenrijk, Kees" sort="Heydenrijk, Kees" uniqKey="Heydenrijk K" first="Kees" last="Heydenrijk">Kees Heydenrijk</name></noRegion><name sortKey="Meijer, Henny J A" sort="Meijer, Henny J A" uniqKey="Meijer H" first="Henny J. A." last="Meijer">Henny J. A. Meijer</name><name sortKey="Raghoebar, Gerry M" sort="Raghoebar, Gerry M" uniqKey="Raghoebar G" first="Gerry M." last="Raghoebar">Gerry M. Raghoebar</name><name sortKey="Stegenga, Boudewijn" sort="Stegenga, Boudewijn" uniqKey="Stegenga B" first="Boudewijn" last="Stegenga">Boudewijn Stegenga</name><name sortKey="Van Der Reijden, Willy A" sort="Van Der Reijden, Willy A" uniqKey="Van Der Reijden W" first="Willy A." last="Van Der Reijden">Willy A. Van Der Reijden</name><name sortKey="Van Winkelhoff, Arie Jan" sort="Van Winkelhoff, Arie Jan" uniqKey="Van Winkelhoff A" first="Arie Jan" last="Van Winkelhoff">Arie Jan Van Winkelhoff</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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