Comparative Accuracy of Conventional Scan Bodies, Intra-oral Photogrammetry, and Calibrated Scan Flags in Full-Arch Implant Scanning
Ориентир для пациента и семьи
Простыми словами
Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.
- Что изучают
- В протоколе указаны: Intervention 1, Intervention 2, Intervention 3, Control.
- Кому может быть актуально
- Состояния в реестре: Accuracy of Different Scanning Techniques. Базовые параметры: Без ограничений · Все.
- Что важно проверить
- Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
- Где проводится
- Список центров уточняется — проверьте первичный протокол.
- Следующий шаг
- Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →
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Официальное название
Comparative Accuracy of Conventional Scan Bodies, Intra-oral Photogrammetry, and Calibrated Scan Flags in Full-Arch Implant Scanning: An In-Vitro Study
Обзор
To assess and compare the accuracy of digital scans obtained using three different scanning protocols -conventional scan bodies, Intra-oral photogrammetry, and calibrated scan flags- on completely edentulous dental model with full-arch implants.
Подробное описание
Digital scans have revolutionized prosthetic workflows by offering increased efficiency and accuracy compared to conventional techniques . Studies highlight that their accuracy depends on the scanning protocol and equipment used. Conventional scan bodies, which are well-established and commonly used for digital scans, are generally reliable; however, their accuracy can be influenced by factors such as angulation, the number of implants, and the scanning technique. Intra-oral photogrammetry has gained attention for its ability to accurately record implant positions without relying on physical scan bodies . Many systems utilize this technology to improve accuracy, particularly in complex full-arch cases, though direct comparisons with other methods remain limited. Calibrated Scan Flags represent a novel approach, incorporating enhanced features to reduce errors associated with angulation and improve the capture of implant positions. While initial studies suggest improved precision, further comparative data are required . Previous research comparing these methods often focuses on isolated factors, such as time efficiency or user preferences, with limited emphasis on accuracy. Therefore, a direct comparative analysis of these three scanning protocols is needed to address this gap.
Вмешательства
- Процедура Intervention 1
Digital scans using conventional scan bodies scanned with an intra-oral scanner. - Процедура Intervention 2
Digital scans using intra-oral photogrammetry scanned with an intra-oral scanner. - Процедура Intervention 3
Digital scans using calibrated scan flags scanned with an intra-oral scanner. - Процедура Control
Digital scans using conventional scan bodies scanned with a desktop scanner.
Первичные конечные точки
- Accuracy of multiunit abutment positions [Срок оценки: 7 days]
Критерии участия
Критерии включения
- Edentulous dental model simulating completely edentulous patients.
- Model containing full-arch implant analogs placed in standardized positions.
- Access to compatible scan bodies for all three scanning protocols.
Критерии исключения
- Dental models with defects, such as fractures or irregularities, that may influence scanning accuracy.
- Implant analogs placed at non-standardized or inconsistent angles.
- Scan bodies or equipment showing signs of wear or damage that could compromise results.
Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.
Здоровые добровольцы: Нет
Дизайн исследования
- Распределение
- Рандомизированное
- Модель
- Параллельные группы
- Маскирование
- Простое слепое
- Основная цель
- Диагностика
Центры проведения
Список центров уточняется — проверьте первичный протокол.
Публикации
- Ma B, Yue X, Sun Y, Peng L, Geng W. Accuracy of photogrammetry, intraoral scanning, and conventional impression techniques for complete-arch implant rehabilitation: an in vitro comparative study. BMC Oral Health. 2021 Dec 10;21(1):636. doi: 10.1186/s12903-021-02005-0. PMID 34893053
- Buzayan M, Baig MR, Yunus N. Evaluation of accuracy of complete-arch multiple-unit abutment-level dental implant impressions using different impression and splinting materials. Int J Oral Maxillofac Implants. 2013 Nov-Dec;28(6):1512-20. doi: 10.11607/jomi.2958. PMID 24278919
Идентификаторы
NCT: NCT07200440 · Mohamed El Saharty Scan