| The effects of ozone gas application on shear bond strength of orthodontic brackets to enamel. | |
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MedLine Citation:
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PMID: 18435374 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To investigate the possibility that ozone may have an adverse effect on the bond strength of orthodontic brackets and to determine the area of residual adhesive on teeth after the debonding of brackets. METHODS: 60 extracted premolars teeth were used in this study. Resin coated APC brackets (3M) were bonded according to the manufacturers' instructions. Bonded teeth were randomly divided into two groups. The teeth in Group 1 were subjected to a 10-second dosage of ozone from the HealOzone unit (Kavo) after etching and to a further 10 seconds of ozone after bonding the brackets using a 5 mm delivery cup. Teeth in Group 2 were used as a control. Debonding was carried out using a testing instrument at a cross-head speed of 1 mm/minute. RESULTS: The Mann-Whitney test revealed no significant differences in shear bond strength between the two groups (P = 0.337). The mean shear bond strength (11.66 MPa) of Group 1 (subjected to ozone) was not significantly different than the mean shear bond strength (10.88 MPa) of Group 2 (not subjected to ozone). A Pearson Chi-square test of the Adhesive Remnant Index (ARI) revealed no significant difference in residual adhesive among the groups tested. |
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Authors:
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Amna Hassan Al Shamsi; James Leo Cunningham; Philip-John Lamey; Edward Lynch |
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Publication Detail:
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Type: Comparative Study; Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: American journal of dentistry Volume: 21 ISSN: 0894-8275 ISO Abbreviation: Am J Dent Publication Date: 2008 Feb |
Date Detail:
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Created Date: 2008-04-25 Completed Date: 2008-07-15 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8806701 Medline TA: Am J Dent Country: United States |
Other Details:
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Languages: eng Pagination: 35-8 Citation Subset: D |
Affiliation:
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Restorative Department, School of Dentistry, Queen's University, Grosvenor Rd., Belfast, Northern Ireland BT12 6BP, United Kingdom. alshamsiamna@hotmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acid Etching, Dental Dental Bonding* Dental Cements / chemistry* Dental Debonding / instrumentation Dental Enamel / ultrastructure* Humans Image Processing, Computer-Assisted Lasers Orthodontic Brackets* Oxidants, Photochemical / chemistry* Ozone / chemistry* Replica Techniques Shear Strength Stress, Mechanical Surface Properties |
| Chemical | |
Reg. No./Substance:
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0/Dental Cements; 0/Oxidants, Photochemical; 0/accelerated Portland cement; 10028-15-6/Ozone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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