Evaluation of Composite Veneers Fabricated by 3D Printing and Milling Technologies
2026年8月10日 更新者：youssef alaa
Evaluation of Composite Veneers Fabricated by 3D Printing and Milling Technologies (Randomized Controlled Clinical Trial & In-Vitro Study)
The clinical study aimed to evaluate the clinical performance, color stability, and wear of indirect composite veneers produced using 3D printing and milling technologies.
調査の概要
状態
完了
詳細な説明
A total of fifty-six anterior indirect veneers will be fabricated using 3D printing and milling technologies.
The veneers will be divided into two groups according to the technique of fabrication.
Group I: 28 veneers will be done using 3D printing technology (VarseoSmile TriniQ, Bego), and group II: 28 veneers will be done using milling technology (Cerasmart 270, GC).
Veneer restorations will be fabricated checked, and cemented, then will be evaluated using the modified FDI criteria at baseline, three months, six months, and one year.
Moreover, color stability and surface wear of the restorations will be evaluated in each follow-up session.
研究の種類
介入
入学 (実際)
14
段階
- 適用できない
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究場所
-
-
-
Alexandria、エジプト
- Faculty of dentistry, Alexandria university
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-
参加基準
研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。
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
いいえ
説明
Inclusion Criteria:
- Healthy adult patients aged 18 to 45 years.
- Patients requiring veneer restorations due to discoloration, misalignment, tooth malformation or having irregular tooth shape that can be treated without full coverage.
- Patients meeting the criteria for Class I or Class II veneers according to the LeSage veneer classification system.
- Patients requiring veneers restorations on their bilateral maxillary anterior teeth.
- The selected teeth should be vital with absence of clinical signs and symptoms of periapical pathology.
- Patients having a normal occlusal relationship between upper and lower teeth (class I Angle classification).
- Patients capable of tolerating rubber dam applications.
- Patients willing to attend regular follow-up appointments.
Exclusion Criteria:
- Bad oral hygiene (Oral Hygiene Index Simplified >3).
- Non-vital teeth or endodontically treated teeth.
- Severe periodontal disease.
- Patients with para-functional habits (e.g., bruxism, attrition, wear facets).
- Dentin exposure more than 20% of the prepared surface for veneer.
- Prescence of smoking/vaping habits
研究計画
このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。
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：ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
アクティブコンパレータ：Group I: 28 veneers will be done using 3D printing technology (VarseoSmile TriniQ, Bego)
|
A total of fifty-six anterior indirect veneers will be fabricated using 3D printing and milling technologies.
The veneers will be divided into two groups according to the technique of fabrication.
Group I: 28 veneers will be done using 3D printing technology (VarseoSmile TriniQ, Bego), and group II: 28 veneers will be done using milling technology (Cerasmart 270, GC).
Veneer restorations will be fabricated checked, and cemented, then will be evaluated using the modified FDI criteria at baseline, three months, six months, and one year.
Moreover, color stability and surface wear of the restorations will be evaluated in each follow-up session.
|
|
アクティブコンパレータ：group II: 28 veneers will be done using milling technology (Cerasmart 270, GC)
|
A total of fifty-six anterior indirect veneers will be fabricated using 3D printing and milling technologies.
The veneers will be divided into two groups according to the technique of fabrication.
Group I: 28 veneers will be done using 3D printing technology (VarseoSmile TriniQ, Bego), and group II: 28 veneers will be done using milling technology (Cerasmart 270, GC).
Veneer restorations will be fabricated checked, and cemented, then will be evaluated using the modified FDI criteria at baseline, three months, six months, and one year.
Moreover, color stability and surface wear of the restorations will be evaluated in each follow-up session.
|
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 |
|---|---|---|
|
The functional properties of the examined veneer restorations
時間枠：1 year
|
All veneers were assessed clinically at 1 week (baseline) and subsequently at 3, 6, and 12 months, following the FDI evaluation criteria and scoring system, which indicates: Functional properties: (F1) Fracture of material and retention.
(F2) Marginal adaptation.
(F3) Proximal contact point.
(F4) Form and contour.
(F5) Occlusion and wear.
Each evaluated property was scored according to the FDI criteria using the following clinical scores: Score 1: Clinically excellent/very good (VG), Score 2: Clinically good (CG), score 3: Clinically satisfactory (CS), score 4: Clinically unsatisfactory (CU), score 5: Clinically poor (PO).
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1 year
|
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The biological properties of the examined veneer restorations
時間枠：1 year
|
All Veneers were assessed clinically at 1 week (baseline) and subsequently at 3, 6, and 12 months, following the revised FDI evaluation criteria and scoring system, which indicates: Biological properties (B1) Caries at restoration margins.
(B2) Dental hard tissue defects at the restoration margin.
(B3) Postoperative hypersensitivity and pulpal status.
Each evaluated property was scored according to the FDI criteria using the following clinical scores: Score 1: Clinically excellent/very good (VG), Score 2: Clinically good (CG), Score 3: Clinically satisfactory (CS), Score 4: Clinically unsatisfactory (CU), Score 5: Clinically poor (PO).
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1 year
|
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The aesthetic properties of the examined veneers
時間枠：1 year
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All veneers were assessed clinically at 1 week (baseline) and subsequently at 3, 6, and 12 months, following the FDI evaluation criteria and scoring system, which indicates: Aesthetic properties: (A1) Surface luster and surface texture.
(A2) Marginal staining.
(A3) Color match.
Each evaluated property was scored according to the FDI criteria using the following clinical scores: Score 1: Clinically excellent/very good (VG), Score 2: Clinically good (CG), Score 3: Clinically satisfactory (CS), Score 4: Clinically unsatisfactory (CU), Score 5: Clinically poor (PO).
|
1 year
|
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The color stability of the examined veneers
時間枠：1 year
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All Veneers were assessed clinically at 1 week (baseline) and subsequently at 3, 6, 9, and 12 months using the vita easy shade spectrophotometer.
The CIEDE2000 formula will be used to measure the color change.
|
1 year
|
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Wear resistance of the examined veneers
時間枠：1 year
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All Veneers were scanned clinically using an intra oral scanner at 1 week (baseline) and subsequently at 3, 6, and 12 months.
The different scans were compared to baseline scan to assess the volume loss and accordingly the wear resistant.
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1 year
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協力者と研究者
ここでは、この調査に関係する人々や組織を見つけることができます。
スポンサー
研究記録日
これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。
主要日程の研究
研究開始 (実際)
2025年5月1日
一次修了 (実際)
2026年8月5日
研究の完了 (実際)
2026年8月5日
試験登録日
最初に提出
2026年8月5日
QC基準を満たした最初の提出物
2026年8月5日
最初の投稿 (実際)
2026年8月10日
学習記録の更新
投稿された最後の更新 (実際)
2026年8月12日
QC基準を満たした最後の更新が送信されました
2026年8月10日
最終確認日
2026年8月1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。