Accuracy of Complete-Arch Implant Photogrammetry
Accuracy of Complete-arch Implant Scans Obtained Using Intraoral Photogrammetry and a Mobile-phone Based Photogrammetry.
調査の概要
詳細な説明
Accurate recording of implant positions is essential for the passive fit and long-term success of complete-arch implant-supported prostheses. Photogrammetry-based technologies have emerged as promising alternatives to conventional digital impression techniques for capturing implant positions with high accuracy. While intraoral photogrammetry systems have demonstrated favorable results, the clinical performance of recently introduced mobile-phone-based photogrammetry systems remains insufficiently investigated.
This prospective comparative clinical study aims to evaluate the accuracy and chairside time of complete-arch implant scans obtained using an intraoral photogrammetry system and a mobile-phone-based photogrammetry system in edentulous patients restored with complete-arch implant-supported prostheses. Each participant will undergo implant scanning using both systems according to the manufacturers' recommendations. The resulting digital datasets will be compared with a reference dataset to determine scan accuracy.
The primary outcome measures will be linear and angular discrepancies between the implant positions captured by each photogrammetry system and the reference dataset. Secondary outcome measures will include the chairside time required for scan acquisition. Statistical analyses will be performed to compare the accuracy and efficiency of the evaluated systems.
研究の種類
入学 (推定)
連絡先と場所
研究連絡先
- 名前：Mohammed El-Sawy, PhD
- 電話番号：00201061314522
- メール：mohamed.elsawy@dent.menofia.edu.eg
研究場所
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Menoufia
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Shibīn al Kawm、Menoufia、エジプト、2266166
- 募集
- Mohammed El-Sawy
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コンタクト：
- Mohammed Elsawy
- メール：mohamed.elsawy@dent.menofia.edu.eg
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参加基準
適格基準
就学可能な年齢
- 大人
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Adults aged 18 years or older.
- Completely edentulous patients rehabilitated with implant-supported complete-arch prostheses.
- Presence of at least four osseointegrated implants in the edentulous arch.
- Patients able to undergo digital implant scanning procedures.
- Patients willing to participate and provide written informed consent.
Exclusion Criteria:
- Patients with unstable or failed implants.
- Presence of peri-implant disease, active oral infection, or significant soft-tissue inflammation around the implants.
- Inadequate access for placement of photogrammetry scan bodies or markers.
- Patients with conditions that prevent proper scanning procedures (e.g., inability to maintain mouth opening or remain still during data acquisition).
- Patients requiring immediate implant placement or immediate loading protocols.
- Patients unwilling or unable to provide informed consent.
- Incomplete clinical records or inability to complete all study procedures.
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
コホートと介入
グループ/コホート |
介入・治療 |
|---|---|
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Intraoral Photogrammetry (IPG)
Participants will undergo complete-arch implant scanning using an intraoral photogrammetry system (IPF Elite, Shining 3D).
Implant positions will be digitally recorded according to the manufacturer's instructions.
Linear and angular discrepancies relative to the reference dataset, as well as chairside scanning time, will be evaluated.
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A photogrammetry-based digital impression system used to capture the three-dimensional positions of implants in complete-arch rehabilitations.
The system records implant locations through specialized scan bodies and generates a digital dataset for subsequent accuracy analysis.
他の名前：
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Mobile-Phone-Based Photogrammetry
Participants will undergo complete-arch implant scanning using a mobile-phone-based photogrammetry system (T-Marker).
Implant positions will be digitally recorded according to the manufacturer's instructions.
Linear and angular discrepancies relative to the reference dataset, as well as chairside scanning time, will be evaluated.
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A smartphone-assisted photogrammetry system used to capture the three-dimensional positions of implants in complete-arch rehabilitations.
The system acquires photographic data through coded markers and generates a digital dataset for subsequent accuracy analysis.
他の名前：
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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
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Linear Discrepancy of Complete-Arch Implant Scans
時間枠：Immediately after scan acquisition and digital analysis (same study visit).
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Assessment of the linear deviation (μm) between implant positions captured using intraoral photogrammetry and mobile-phone-based photogrammetry systems and those recorded in the reference dataset.
Lower values indicate greater accuracy.
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Immediately after scan acquisition and digital analysis (same study visit).
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協力者と研究者
スポンサー
捜査官
- 主任研究者：Mohammed A. El-Sawy, PhD、Menoufia University
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
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
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
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