Papers by Ayman Aboushala
Compendium of Continuing Education in Dentistry, 2002
This article reviews the efficacy of a new 6.5% hydrogen peroxide tooth-whitening gel strip for b... more This article reviews the efficacy of a new 6.5% hydrogen peroxide tooth-whitening gel strip for bleaching teeth that have been intrinsically stained from tetracycline. Given the severity of staining in the cases presented during a recently conducted clinical trial, the resulting efficacy is dramatic. Additionally, the continuous use of these strips for 30 minutes per day, twice daily for 2 months with no meaningful adverse effects is noteworthy.
Compendium of continuing education in dentistry (Jamesburg, N.J.: 1995)
This study evaluated the clinical response following extended daily use of a trayless 6.5% hydrog... more This study evaluated the clinical response following extended daily use of a trayless 6.5% hydrogen peroxide (H2O2) tooth bleaching gel in patients with tetracycline stains. In this clinical trial, participants (N = 30) were assigned to a strip product following screening for tetracycline staining. Subjects used the product for 6 months, with clinical safety and efficacy measurements assessed at the end of each month. The strips were used for 30 minutes twice daily (maxillary arch only). Treatment efficacy was determined by the tooth color change from baseline using an expanded VITA shade guide. Additional shades were added on either side, representing colors whiter than B1 and darker than C4. The strips averaged shade reduction in Months 1, 2, and 3 visits, respectively. Of all the subjects, 65% reached B1 color by Month 6. Treatment was generally well tolerated. Mild and transient tooth sensitivity (46.7%) and oral discomfort (43.3%) were the most common adverse events associated ...
Compendium of continuing education in dentistry (Jamesburg, N.J. : 1995), 2011
This study evaluated the clinical response following extended daily use of a trayless 6.5% hydrog... more This study evaluated the clinical response following extended daily use of a trayless 6.5% hydrogen peroxide (H2O2) tooth bleaching gel in patients with tetracycline stains. In this clinical trial, participants (N = 30) were assigned to a strip product following screening for tetracycline staining. Subjects used the product for 6 months, with clinical safety and efficacy measurements assessed at the end of each month. The strips were used for 30 minutes twice daily (maxillary arch only). Treatment efficacy was determined by the tooth color change from baseline using an expanded VITA shade guide. Additional shades were added on either side, representing colors whiter than B1 and darker than C4. The strips averaged shade reduction in Months 1, 2, and 3 visits, respectively. Of all the subjects, 65% reached B1 color by Month 6. Treatment was generally well tolerated. Mild and transient tooth sensitivity (46.7%) and oral discomfort (43.3%) were the most common adverse events associated ...
Compendium of continuing education in dentistry (Jamesburg, N.J. : 1995), 2002
This article reviews the efficacy of a new 6.5% hydrogen peroxide tooth-whitening gel strip for b... more This article reviews the efficacy of a new 6.5% hydrogen peroxide tooth-whitening gel strip for bleaching teeth that have been intrinsically stained from tetracycline. Given the severity of staining in the cases presented during a recently conducted clinical trial, the resulting efficacy is dramatic. Additionally, the continuous use of these strips for 30 minutes per day, twice daily for 2 months with no meaningful adverse effects is noteworthy.
Compendium of continuing education in dentistry (Jamesburg, N.J. : 1995), 2003
Despite proven strength, durability, and improved esthetics, ceramometal restorations have not co... more Despite proven strength, durability, and improved esthetics, ceramometal restorations have not consistently enabled the most esthetic, lifelike reproduction of natural dentition. Also, inherent weaknesses in many metal-free materials have precluded their use in the high stress-bearing posterior region. Therefore, as a result of the need for esthetic and durable all-ceramic restorations, manufacturers have introduced ceramics with an increased alumina or zirconia content that are recommended for placement anywhere in the mouth for single units and as far back as the first premolar.
The Journal of Prosthetic Dentistry, 1997
Statement of problem. Fracture strength of interim fixed partial prosthesis is of great concern, ... more Statement of problem. Fracture strength of interim fixed partial prosthesis is of great concern, especially in long-span restorations or areas of heavy occlusal stress. Purpose. Effects of a plasma-treated woven polyethylene fiber (Ribbond) on the fracture strength of polymethyl methacrylate (Coldpac) and a resin-based two-phase curing provisional restorative material (Provipont DC) were evaluated. Material and methods. A polyvinyl siloxane template was used to fabricate three-unit posterior provisional prostheses on a stainless steel die with two abutments 22 mm apart. The reinforced groups were fabricated by affixing 3 mm wide pieces of fiber treated with methyl methacrylate monomer or polyisocyanate (activator part of Provipont DC) on the occlusal surfaces of abutments. The interim materials were mixed, according to the manufacturers' specifications, and placed in the template. The template was pressed on the die and held secure until complete setting of the material occurred by light curing (Provipont DC) or autopolymerization (PMMA). The specimens were divided into 4 groups of 10 each (A, reinforced Provipont DC; B, unreinforced Provipont DC; C, reinforced PMMA; and D, unreinforced PMMA). A central compressive load force was exerted on the specimen to determine the fracture load of the restorations. Results. The data revealed mean fracture loads of A, 65.59 _* I1.27 kg; B, 46.59 -+ 14.84 kg; C, 53.46 _+ 7.76 kg; and D, 49.86 _+ 14.44 kg. Conclusion. Plasma-treated polyethylene reinforced PMMA restorations showed no significant increase in fracture loads when compared with unreinforced restorations (p > 0.10), whereas reinforced resin-based restorations revealed significantly higher fracture loads (p < 0.01) than the unreinforced resin-based and
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Papers by Ayman Aboushala