自由歯肉の限界安定性に対する 2 つの異なる縫合技術の使用の効果
ガミースマイルの治療のための審美的な歯冠延長後の自由歯肉の限界安定性に対する 2 つの異なる縫合技術の使用の効果 (無作為化臨床試験)
Gummy smile is one of the major esthetic problems nowadays; it is due to several causes that either dental or skeletal. Etiology of the gummy smile is altered passive eruption, vertical maxillary excess, different gingival enlargement conditions, deficient maxillary lip length and excessive maxillary lip mobility, dento alveolar extrusion, combination of all these factors.
Altered passive eruption is considered to be one of the most major causes, it is classified into two types according to the location of the mucogingival junction with respect to the bone crest and each type has two subtypes . Esthetic crown lengthening is the treatment of choice for subtype B in both types as bone removal is mandatory to create a space for the biological width.
Most of the studies stated that there is some degree of relapse of the gingival tissues after the procedures in the follow ups, that relapse was related to the biotype of the gingival tissues, the flap placement close or far from the bone can be correlated to the suturing technique used for closure of the tissues.
In the investigator's study comparing of two different suturing technique was done to evaluated their effect on gingival tissue relapse, 30 patients (26 females and 4 males) were divided between 2 groups each group consisted of 15 patients. In the first group vertical mattress suturing technique was done in the secondperiosteal vertical suturing technique was.
Evaluation of the tissue relapse was done through the assessment of the amount of the attached gingival tissues level of gingival margin and marginal tissue contour before and after the surgery.
The results of the study showed that tissue relapse was more in the periosteal suturing technique group that was related to the pressure on the tissues due to the fixation of the suture at the periostium, the papillary tissue also showed more inflammation in the follow up period prior to suture removal. The figure of eight group showed less relapse and tissue inflammation as it prevents flap edge overlap and is tension free therefore better blood supply to the tissue.
Patients were generally satisfied post-surgical with their smile, gingival tissue visibility and teeth dimensions inspite of the relapse but it was better than prior to surgery. Also they would recommend it to other patients complaining from the same problem.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
Thirty patients (26 females, 4 males), who were candidates for esthetic crown lengthening, participated in this prospective clinical trial.
Group I (15 patients) (vertical mattress suturing technique) :
Esthetic crown lengthening procedure: internal bevel, sulcular and interdental incisions, flap elevation, bone removal then External vertical mattress suture was done (periosteal suture).
Group II (15 patients) (periosteal vertical suturing technique) :
Esthetic crown lengthening procedure: internal bevel, sulcular and interdental incisions, flap elevation, bone removal then periosteal vertical suture was done
研究の種類
研究の種類
入学 (実際)
入学
段階
段階
- 適用できない
連絡先と場所
研究場所
-
-
-
Cairo、エジプト
- Faculty of Dentistry Ain Shams University
-
-
参加基準
適格基準
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:
- Patients complaining from gummy smile (altered passive eruption)
- Bone level is 2 mm or less from the cemento enamel junction
- Teeth included were free from any periodontal destruction
- Good compliance with the plaque control instructions following initial therapy.
- Availability for follow up and maintenance program
Exclusion Criteria:
- Presence of systemic diseases which could influence the outcome of the therapy (American society of anesthesiologists I, ASA I).
- Patient suffering from periodontitis stage 4 grade c.
- Presence of smoking habit.
- Presence of occlusion interference.
- Pregnant females and lactating females. .
- Vulnerable groups of patients (handicapped, mentally retarded, prisoners).
- Restored teeth.
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
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
|
アクティブコンパレータ:vertical mattress suturing technique
vertical mattress suturing technique is done to close the flap |
vertical mattress suturing technique used for flap closure after esthetic crown lengthening |
|
アクティブコンパレータ:periosteal vertical suturing technique
periosteal vertical suturing technique is done to close the flap |
figure of eight suturing technique used for flap closure after esthetic crown lengthening |
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
evaluation of the marginal soft tissue levels rebound
時間枠:6 months
|
determination of soft tissue rebound: is measured as the difference between (the level of free gingival margin after suturing) and (the level of the free gingival margin 6 months post surgical) both measured from fixed reference point on the stent to the free gingival margin |
6 months
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Supracrestal gingival tissue
時間枠:6 months
|
the difference between the bone level and the free gingival margin (measured from a fixed reference point on the stent) |
6 months
|
|
Patient satisfaction
時間枠:at 6 months post surgical
|
questionnaire (After surgery)
|
at 6 months post surgical
|
協力者と研究者
捜査官
捜査官
- スタディディレクター:ahmed gamal, professor、faculty of dentistry ain shams university
研究記録日
主要日程の研究
研究開始 (実際)
研究開始
一次修了 (実際)
一次修了
研究の完了 (実際)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
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
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
その他の研究ID番号
- PER16-35M
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?
IPD プランの説明
when the study is done the results will be published with the protocol
IPD 共有時間枠
the data will be available starting next month and for 1 year
IPD 共有アクセス基準
the keywords esthetic crown lengthening, suturing techniques in dentistry
IPD 共有サポート情報タイプ
- STUDY_PROTOCOL
- SAP
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。