Assessment of Lateral and Vertical Tissue Displacement Obtained by the Retraction Cord and Diode Laser

Study Overview
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Brief Summary
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In fixed prosthodontic treatment, deflection of gingival tissues for diagnosis or making an impression is one of the important phases. Gingival displacement is defined as displacement of gingival tissues both in vertical and lateral dimensions. Lateral retraction displaces the tissues so that an adequate bulk of impression material can be interfaced with the prepared tooth. Vertical retraction exposes the uncut portion of the tooth apical to the finish line Conventional gingival retraction cord technique may injure the healthy epithelial lining and result in postoperative gingival recession The diode laser has been used for displacing gingiva to make a deﬁnitive impression. Rather than displacing gingival tissue, it removes the epithelial lining from the sulcus. The aim of the Study is to compare between the Ultrapak retraction cord and diode laser regarding the amount of vertical and lateral retraction and patient comfort.

Official Title
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Assessment of Lateral and Vertical Tissue Displacement Obtained by the Retraction Cord and Diode Laser

Conditions
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Endodontically-Treated Teeth, Spacing of Anterior Maxillary Teeth, Broken Teeth Injury With Complication

Intervention / Treatment
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* Device: diode laser
* Device: ultrapak Knitted retraction cord


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age range of the patients from 20-45 years old; able to read and sign the informed consent document, illiterate patient will be avoided. Patients able physically and psychologically to tolerate conventional restorative procedures. Patients with no active periodontal disease. Patients with thick gingival biotype. Patients with teeth problems indicated for full coverage restoration . Vital or non vital teeth. Good Oral hygiene. Exclusion Criteria: Patients with poor oral hygiene. Patients with thin gingival biotype. Pregnant women. Unmotivated patients. Patients with gingival recession. Patients with psychiatric problems or unrealistic expectation . patient suffer from parafunctional habit . Smokers and heavy caffeine consumers.

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Gingival retraction by ultrapak retraction cord<br> | Device: ultrapak Knitted retraction cord<br>* using Ultrapak Knitted retraction cord as a gingival retraction method retraction cord will be applied for 8-10 mins then an impression will be taken , poured to obtain a cast and the die sectioned<br>|
| Experimental: Gingival retraction by diode laser<br> | Device: diode laser<br>* using Ultrapak Knitted retraction cord as a gingival retraction method . using Wiser Cordless Dental Diode Laser from Doctor Smile Dental Laser By LAMBDA SpA Italy as a gingival retraction method.• The tip of diode laser, will be angled toward the soft tissue and away from the prepared tooth, will be passed along the gingival sulcus to remove the sulcular epithelium. Constant and steady short brushing strokes gently removed the lining of the sulcus in order to achieve a full 360-degree trough. The tip will be constantly cleaned with a gauze sponge wetted with hydrogen peroxide to remove debris and to eliminate potential bacterial contamination. sufﬁcient epithelium will be removed to place the impression material and visualize the ﬁnishing line. The tissue will be kept moist with water during the procedure then impression will be taken<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Amount of lateral tissue displacement | Measured using Stereomicroscope | through study completion,up to 24 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Amount of vertical tissue displacement | Measured using Stereomicroscope | through study completion,up to 24 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Gingival retraction, Gingival displacement, Diode laser