Study Comparing OsseoSpeed™ Implants of Two Different Lengths in the Upper and Lower Posterior Jaw
An Open, Prospective, Randomized, Multi-center Study Comparing OsseoSpeed™ Implant 6 mm With OsseoSpeed™ Implant 11 mm in the Posterior Maxilla and Mandible. A 5-year Follow-up Study.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
研究の種類
研究の種類
入学 (実際)
入学
段階
段階
- 適用できない
連絡先と場所
研究場所
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California
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Los Angeles、California、アメリカ、90089-0641
- USC School of Dentistry
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Iowa
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Iowa City、Iowa、アメリカ、52242-1010
- The University of Iowa, College of Dentistry
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London、イギリス、SE1 9RT
- King's College London Dental Institute at Guy's King's and St Thomas' Hospitals
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Apeldoorn、オランダ、7315
- Praktijk De Mondhoek
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Victoria
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Melbourne、Victoria、オーストラリア、3010
- School of Dental Science, University of Melbourne
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Göteborg、スウェーデン、SE 405 30
- Dept. of Parodontology, Göteborg University
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参加基準
適格基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Provision of informed consent
- Aged 20-70 years at enrolment
- History of edentulism in the study area of at least four months
- Neighboring tooth/teeth to the planned bridge must have natural root(s)
- Presence of natural teeth, partial prosthesis and/or implants in the opposite jaw in contact with the planned bridge.
- Deemed by the investigator to have a bone height of at least 11 mm and a bone width of minimum 6 mm
- Deemed by the investigator as likely to present an initially stable implant situation
Exclusion Criteria:
- Unlikely to be able to comply with study procedures, as judged by the investigator
- Earlier graft procedures in the study area
- Uncontrolled pathologic processes in the oral cavity
- Known or suspected current malignancy
- History of radiation therapy in the head and neck region
- History of chemotherapy within 5 years prior to surgery
- Systemic or local disease or condition that could compromise post-operative healing and/or osseointegration
- Uncontrolled diabetes mellitus
- Corticosteroids or any other medication that could influence post-operative healing and/or osseointegration
- Smoking more than 10 cigarettes/day
- Present alcohol and/or drug abuse
- Involvement in the planning and conduct of the study (applies to both Astra Tech staff and staff at the study site)
- Previous enrolment in the present study.
- Severe non-compliance to protocol as judged by the investigator and/or Astra Tech
- Simultaneous participation in another clinical study, or participation in a clinical study during the last 6 months
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:なし(オープンラベル)
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
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実験的:Group-1, Implant length 6 mm
Subjects treated with OsseoSpeed™ implant, length: 6 mm
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OsseoSpeed™ dental implant, length: 6 mm
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他の:Group-2, Implant length 11 mm
Subjects treated with OsseoSpeed™ implant, length: 11 mm
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OsseoSpeed™ dental implant, length: 11 mm
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この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Radiological Assessments of Marginal Bone Level Alteration
時間枠:Evaluated from implant installation to 5 years follow-up after implant placement
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Marginal Bone Level determined from radiographs and expressed as the difference from a reference point on the implant to the most coronal bone-to-implant contact on the mesial and distal aspect of the implant. Marginal Bone Level expressed in millimeters at the 5 year follow-up visit compared to values obtained at delivery of temporary restoration i.e. loading (baseline). Positive value = bone gain, Negative value = bone loss. |
Evaluated from implant installation to 5 years follow-up after implant placement
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二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Overall Implant Survival
時間枠:Evaluated 5 years after implant placement
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Overall implant survival, measured on implant level
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Evaluated 5 years after implant placement
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Evaluation of the Periimplant Mucosa Condition - By Assessment BoP
時間枠:Measured at the 5-year follow-up visit after loading
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Condition of the periimplant mucosa by assessment of Bleeding on Probing (BoP).
Presented as s count of implants that show presence of BoP.
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Measured at the 5-year follow-up visit after loading
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Evaluation of the Periimplant Mucosa Condition - By Assessment of Change in PPD
時間枠:Evaluated at implant loading and at the 5-year follow-up visit.
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Condition of the periimplant mucosa by assessment of change in probing pocket depth (PPD). Change in pocket depth expressed in millimeters at the 5-year follow-up visit, compared to values obtained at delivery of permanent restoration, i.e. loading (baseline). Negative value = increased pocket depth. |
Evaluated at implant loading and at the 5-year follow-up visit.
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Presence of Plaque
時間枠:Evaluated at the 5-year follow-up visit after loading.
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Presence of plaque was evaluated at four surfaces around each study position (mesial, facial, distal and lingual). Plaque was recorded as presence or absence of plaque by visual inspection. A study position was considered as bleeding "yes" if at least one of the four surfaces around the implant showed presence of bleeding on probing. |
Evaluated at the 5-year follow-up visit after loading.
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協力者と研究者
捜査官
捜査官
- スタディディレクター:Anna-Karin Lundgren、Direktor Clinical Research, Dentsply Sirona Implants, Mölndal, SWEDEN
出版物と役立つリンク
一般刊行物
- Gulje F, Abrahamsson I, Chen S, Stanford C, Zadeh H, Palmer R. Implants of 6 mm vs. 11 mm lengths in the posterior maxilla and mandible: a 1-year multicenter randomized controlled trial. Clin Oral Implants Res. 2013 Dec;24(12):1325-31. doi: 10.1111/clr.12001. Epub 2012 Sep 3.
- Zadeh HH, Gulje F, Palmer PJ, Abrahamsson I, Chen S, Mahallati R, Stanford CM. Marginal bone level and survival of short and standard-length implants after 3 years: An Open Multi-Center Randomized Controlled Clinical Trial. Clin Oral Implants Res. 2018 Aug;29(8):894-906. doi: 10.1111/clr.13341. Epub 2018 Jul 12.
研究記録日
主要日程の研究
研究開始
研究開始
一次修了 (実際)
一次修了
研究の完了 (実際)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
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