Digital vs Analog Impression in Cases of All-on-4 - Prosthesis
In a Post -Covid-19 World, What is the Clinical Influence of Digital vs Analog Impression in Cases of All-on-4 - Prosthesis ?
Fifty six patients were randomly enrolled in the study. Participants were randomly stratified into two control groups and two test groups, from which conventional pick up and digital impressions were made respectively. Patients of group 1 (CIG Axial) and 3 (DIG Axial) received 4 axial implants whereas, group 2 patients (CIG Tilted), and group 4 (DIG Tilted) received two anterior axial implants and two distal tilted implants.
All participants received hybrid dentures. Bone loss, implant loss, maintenance of prosthesis were evaluated at 6m,12m, and 24 months follow up period.
調査の概要
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
-
-
-
Giza、エジプト、12451
- OctoberUMSA
-
-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- completely edentulous patients with age range from 50-65 years.
- physically and psychologically eligible participants for implants placement.
- adequate bone to receive 4 interforaminal implants.
Exclusion Criteria:
participants were excluded if
- medical conditions that precludes implants placement
- smokers
- patients suffering from any parafunctional habits
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:独身
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:(CIG Axial)
received 4 axial implants and conventional impression
|
patients received 4 axial implants and digital impression
|
|
実験的:(DIG Axial)
received 4 axial implants and digital impression
|
received two anterior axial implants and two distal tilted implants, and digital impression
patients received 4 axial implants and conventional impression
|
|
アクティブコンパレータ:CIG Tilted
received two anterior axial implants and two distal tilted implants, and conventional impression
|
received two anterior axial implants and two distal tilted implants, and digital impression
|
|
実験的:(DIG Tilted)
received two anterior axial implants and two distal tilted implants, and digital impression
|
patients received 4 axial implants and digital impression
received two anterior axial implants and two distal tilted implants, and conventional impression
|
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 |
|---|---|---|
|
implant loss
時間枠:24 months
|
The implants were considered surviving if they were clinically stable and functioning without any mobility.
Failure was defined removal of implants due to loss of integration, pain, implant mobility, paraesthesia, neuropathies or psychological reasons.
Calculation of the estimated failure rate was performed by dividing the number of implant failures by the total exposure time of the implant.
The total exposure time is the interval of time the implants could be followed for the entire observation time or up to failure of the implants that were lost during the follow-up period.
|
24 months
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
crestal bone loss
時間枠:24 months
|
Standardized periapical radiographs with long cone paralleling technique using film holders were used for the assessment of crestal bone loss.
The loss of marginal bone relative to the implant shoulder at the mesial and distal of each implant was measured in mm and then the mean was calculated and statistically estimated.
A digital intraoral imaging system was used (Digora phosphor plate reader, Soredex Tuusula, Finland).
All the radiographs were scanned and then uploaded into the computer for assessing bone loss over time.
The "ImageJ" software was used to take the measurements on the computer screen.
Postoperative radiographs with the implants placed at the crest of the bone were compared with the 6,12 and 24 m radiographs.
|
24 months
|
その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
maintenance
時間枠:24 months
|
During the follow-up period, prosthodontic (mechanical) complications for the four groups were registered and calculated according to the following events: number of screw loosening or screw fracture of the abutment, number of screw loosening or screw fracture of the prosthesis, number of framework fracture, fractured acrylic resin, number of prosthetic teeth fracture and loss of cover of access hole.
|
24 months
|
協力者と研究者
捜査官
- 主任研究者:Dina Elawady、Lecturer
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (実際)
研究の完了 (実際)
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
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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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