Posterior Resin Bite Turbos Effect on Maxillary Expansion Using a HYRAX Expander in Early Adolescents (HYRAX_ RME_SME)
Effect of Posterior Disarticulatory Resin Bite Turbos on the Rate of Maxillary Expansion Using HYRAX Expander in Early Adolescent Patients: Randomized Controlled Clinical Trial
調査の概要
状態
詳細な説明
This study is conducted as part of a Master's thesis in Orthodontics and aims to investigate the influence of posterior disarticulatory resin bite turbos on the rate of maxillary expansion achieved using a HYRAX expander in early adolescent patients.
The study evaluates whether modifying occlusal contacts can affect skeletal and dental responses during rapid maxillary expansion.
Participants will be monitored clinically throughout the expansion phase.
Participants will be assigned in two groups:
group 1: with posterior bite turbos group 2: without posterior bite turbos
Digital intraoral scans will be taken on a weekly basis to assess changes in maxillary dimensions and to accurately measure the rate and pattern of expansion over time.
These serial digital records provide high-resolution, non-invasive documentation of treatment progress.
CBCT will be taken before the expansion and after retention phase for skeletal and dental measurement .
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前：Donia Alashker
- 電話番号：00201557372170
- メール：donyaalashker7@mans.edu.eg
研究場所
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Al Mansurah、エジプト
- 募集
- Orthodontic Department - Faculty of Dentistry Mansoura University
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コンタクト：
- Faculty of Dentistry Mansoura University
- 電話番号：0020502267151
- メール：dentfac@mansoura.edu.eg
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-
参加基準
適格基準
就学可能な年齢
- 子
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Patients aged 10-14 years.
- Bilateral posterior cross bite.
- Functional lateral cross bite.
- Good general and oral health.
- Normal to decreased vertical height )average FMA 29.7 °± 4.2 °).23
Exclusion Criteria:
- Patients with cleft lip and palate.
- Severe facial asymmetry.
- Anterior open bite.
- Systemic conditions affecting tooth movement (e.g., diabetes, bone disorders).
- Previous orthodontic treatment.
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：ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的：group 1: HYRAX with posterior bite turbos
Participants in this arm receive a HYRAX rapid maxillary expansion appliance combined with posterior disarticulatory resin bite turbos.
The bite turbos are placed on posterior teeth to achieve occlusal disclusion, aiming to minimize occlusal interference during expansion and potentially enhance skeletal response.
The HYRAX expander is activated according to a standardized protocol throughout the treatment period, with regular follow-up using clinical assessment and weekly intraoral scans.
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Description: Arm 1: Participants in this group receive a HYRAX rapid maxillary expansion appliance combined with posterior disarticulatory resin bite turbos. The bite turbos are placed on the posterior teeth to disclude the occlusion, aiming to reduce occlusal interference and potentially enhance skeletal response during maxillary expansion. The HYRAX appliance is activated according to a standardized expansion protocol. |
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アクティブコンパレータ：Group 2 : Expansion without posterior bite turbos
Participants in this arm receive a HYRAX rapid maxillary expansion appliance without the use of posterior disarticulatory resin bite turbos.
The appliance is activated according to a standardized expansion protocol similar to the experimental group.
Patients are followed throughout the treatment period with regular clinical assessments and weekly intraoral scans to monitor changes in maxillary dimensions.
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Participants in this group receive a HYRAX rapid maxillary expansion appliance alone without the use of posterior bite turbos.
The appliance is activated following the same standardized expansion protocol as the intervention group.
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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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The effect of occlusal disarticulation on the rate of maxillary expansion by linear measurements made on digital models
時間枠：Baseline and weekly during the active phase of expansion and after 3 months of retention
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Dental landmarks and measurements on models : d3 :Canine tip. d4: Central fissure of first premolar. d6 :Central fissure of first permanent molar. d_3( inter canine width): Distance between left and right d3. d_4 (inter first premolar width) : Distance between left and right d4. d_6(inter first molar width): Distance between left and right d6. |
Baseline and weekly during the active phase of expansion and after 3 months of retention
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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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-The effect of the posterior disarticulation on alveolar bone changes by CBCT .
時間枠：baseline and after three months of retention after complete active expansion
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Skeletal transverse, vertical, nasal width changes and axial inclination of posterior teeth will be evaluated .
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baseline and after three months of retention after complete active expansion
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pain felt by the patient after activating the expansion screw
時間枠：first two weeks in active phase of expansion
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ain will be assessed using the Visual Analogue Scale (VAS), a 100 mm line with "no pain" at the left end and "the worst unbearable pain" at the right, which corresponds to a pain score between 0 and 10.
All participants will be asked to place a vertical mark indicating the level of pain on the VAS 4 h after each activation for the first two weeks in diary sheet containing the actual size of a 100mm of VAS. 25
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first two weeks in active phase of expansion
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協力者と研究者
スポンサー
捜査官
- 主任研究者：Donia Alashker、Faculty of Dentistry Mansoura 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
本研究に関する用語
その他の研究ID番号
- MS.26.02.145
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
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