Набор по приглашению NCT05943782

Evaluation of CAD/CAM Onlays Fabricated by Subtractive Versus Additive Digital Manufacturing Techniques.

Без фазы С лечением Caries,Dental Broken Teeth Fracture Tooth Defective Dentition

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: onlay manufactured by milling, Onlay manufactured by 3D printing.
Кому может быть актуально: Состояния в реестре: Caries,Dental, Broken Teeth, Fracture Tooth, Defective Dentition. Базовые параметры: 18 лет — 50 лет · 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: Египет
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

Functional Evaluation of CAD/CAM Onlays Fabricated by Subtractive Versus Additive Digital Manufacturing Techniques. A One Year Randomized Clinical Trial.

Обзор

Aim of the study: The aim of this RCT is to evaluate CAD/CAM onlays fabricated by subtractive technique (brilliant crios) versus additive technique (varseosmile crown plus material), in terms of clinical functional evaluation following the FDI criteria and three-dimensional digital evaluation of the marginal and internal fit by triple scan protocol. Materials and methods: A total of 30 patients will be enrolled in the clinical trial following the eligibility criteria. Then, the patients will be randomly allocated to receive either 3D printed onlays or milled ones. A blinded operator will prepare a standardized cavity for the restoration and an impression will be performed. After designing the restoration on the Exocad software, A dentist not involved in the clinical part of the study will receive the STL file of the design and envelopes containing the information necessary only to manufacture the restorations (tooth numbers and restorative materials) to proceed with either the milling or printing procedures. Try in and cementation procedures will be similarly performed for both groups by a blinded operator. Finally, the marginal and internal fit will be evaluated by using the triple scan protocol for digital 3D assessment. Also, a baseline, six months and 12 months assessments will be performed by a blinded examiner, not involved in the clinical part for assessing the functional clinical performance of the re3stprations using the FDI criteria. Finally, the data will be statistically analyzed.

Подробное описание

Statement of the problem: Several randomized clinical trials (RCT) investigated the clinical performance of milled ceramic and composite posterior indirect adhesive restorations. However, none investigated that of 3D printed ones and the differences in their fabrication process and material properties of these restorations may impact their clinical performance. Therefore, clinical assessment of that novel additive technique is required.

Materials and methods: A total of 30 patients will be enrolled in the clinical trial following the eligibility criteria. Then, the patients will be randomly allocated to receive either 3D printed onlays or milled ones. A blinded operator will prepare a standardized cavity for the restoration and an impression will be performed. After designing the restoration on the Exocad software, A dentist not involved in the clinical part of the study will receive the STL file of the design and envelopes containing the information necessary only to manufacture the restorations (tooth numbers and restorative materials) to proceed with either the milling or printing procedures. Try in and cementation procedures will be similarly performed for both groups by a blinded operator. Finally, the marginal and internal fit will be evaluated by using the triple scan protocol for digital 3D assessment.

Also, a baseline, six months and 12 months assessments will be performed by a blinded examiner, not involved in the clinical part for assessing the functional clinical performance of the re3stprations using the FDI criteria. Finally, the data will be statistically analyzed.

Вмешательства

Процедура onlay manufactured by milling
indirect restorations for treating mutilated molars manufactured by CAD/CAM subtractive technique
Процедура Onlay manufactured by 3D printing
indirect restorations for treating mutilated molars manufactured by CAD/CAM additive technique

Первичные конечные точки

Marginal and internal fit. [Срок оценки: Immediate after treatment]

Вторичные конечные точки (1)

clinical functional evaluation . [Срок оценки: one year]

Критерии участия

Критерии включения

Presence of caries lesion, defective amalgam, or composite restorations in posterior dentition (molars), suitable for the restoration with ceramic onlays.
Presence of antagonist tooth.
Adult patients (age: 18-50 years) of both genders.
Good general and oral health; Able to tolerate necessary restorative procedures and willing to sign an informed consent.
Absence of orthodontic appliances.
Absence of malocclusion and tooth malformation.