Evaluation of the Sandblasting on the Rebonding Strength
NCT ID: NCT04606043
Last Updated: 2020-10-28
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
20 participants
INTERVENTIONAL
2011-06-20
2012-06-15
Brief Summary
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The aim of this study is to compare Two rebonding procedures by applying a split-mouth design. The clinical failure rates of the two rebonding procedures will be evaluated.
Detailed Description
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An information sheet will be given to each possible candidate. Then consent forms will be obtained.
All patients will receive both rebonding procedures by applying split-mouth design. Each patient will be asked to select an opaque sealed envelope from a box with 20 ones. Ten envelopes will Include instructions for applying sandblasting prior to acid-etching on the right upper premolars and acid-etching alone on the left upper premolars. In contrast, the other ten envelopes will include opposite instructions.
A total sample of 80 premolars will be obtained to study the clinical failure rates of the two rebonding procedures.
The 80 premolars will be randomly divided into two groups:
* The first group in which the enamel will be prepared using sandblasting prior to acid-etching.
* The second group in which the enamel will be prepared using acid-etching alone.
Conditions
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Study Design
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RANDOMIZED
CROSSOVER
OTHER
SINGLE
Study Groups
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Sandblasting
The enamel surfaces will be subjected to sandblasting prior to acid etching
Sandblasting
Sandblasting will be applied onto the vestibular surfaces of the teeth before applying the etchant.
Acid Etching Alone
Acid etching will be applied alone before the rebounding procedures
Acid Etching
Only acid etching will be applied onto the vestibular surfaces of the teeth before rebonding
Interventions
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Sandblasting
Sandblasting will be applied onto the vestibular surfaces of the teeth before applying the etchant.
Acid Etching
Only acid etching will be applied onto the vestibular surfaces of the teeth before rebonding
Eligibility Criteria
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Inclusion Criteria
2. willing and able to comply with the trial procedures
3. No crossbite, scissor bite, or occlusal interferences with the bonded/rebonded brackets in the premolars region (to prevent any potential early bond failure)
4. no craniofacial anomalies.
Exclusion Criteria
2. any need for ortho-surgical treatment or teeth extraction.
13 Years
18 Years
ALL
No
Sponsors
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Damascus University
OTHER
Responsible Party
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Principal Investigators
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Ahmad Rami Dirie, DDS MSc
Role: PRINCIPAL_INVESTIGATOR
Specialist and Clinical Lecturer, Department of Orthodontics, University of Aleppo
Heba M. Al-Ibrahim, DDS
Role: PRINCIPAL_INVESTIGATOR
MSc student in Orthodontics, University of Damascus
Jamal Dabbas, DDS MSc PhD
Role: STUDY_DIRECTOR
Professor of Orthodontics, Department of Orthodontics, University of Aleppo
Mohammad Y Hajeer, DDS MSc PhD
Role: STUDY_DIRECTOR
Professor of Orthodontics, Department of Orthodontics, University of Damascus
Locations
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Department of Orthodontics, University of Aleppo Dental School
Aleppo, , Syria
Countries
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References
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Egan FR, Alexander SA, Cartwright GE. Bond strength of rebonded orthodontic brackets. Am J Orthod Dentofacial Orthop. 1996 Jan;109(1):64-70. doi: 10.1016/s0889-5406(96)70164-6.
Bishara SE, Laffoon JF, Vonwald L, Warren JJ. The effect of repeated bonding on the shear bond strength of different orthodontic adhesives. Am J Orthod Dentofacial Orthop. 2002 May;121(5):521-5. doi: 10.1067/mod.2002.123042.
Faust JB, Grego GN, Fan PL, Powers JM. Penetration coefficient, tensile strength, and bond strength of thirteen direct bonding orthodontic cements. Am J Orthod. 1978 May;73(5):512-25. doi: 10.1016/0002-9416(78)90241-5. No abstract available.
Mizrahi E. Success and failure of banding and bonding. A clinical study. Angle Orthod. 1982 Apr;52(2):113-7. doi: 10.1043/0003-3219(1982)0522.0.CO;2.
Dirie AR, Hajeer MY, Dabbas J, Al-Ibrahim HM. Evaluation of sandblasting with acid etching versus acid etching alone in the preparation of enamel for rebonding orthodontic brackets: An in vitro study and a randomized controlled trial. J World Fed Orthod. 2021 Mar;10(1):3-8. doi: 10.1016/j.ejwf.2020.12.001. Epub 2021 Jan 7.
Other Identifiers
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UADS-2020-01
Identifier Type: -
Identifier Source: org_study_id