An in-vitro evaluation of mechanical and esthetic properties of orthodontic sealants
نویسندگان
چکیده
OBJECTIVE To evaluate mechanical and esthetic Properties of two commercially available orthodontic sealants: Opal(®)Seal (OS) and L.E.D. Pro Seal (PS). MATERIALS AND METHODS Discs of each sealant were prepared to test the following properties: Micro hardness, wear resistance and color stability. Samples were randomly selected after the wear test for SEM imaging to analyze surface morphology. RESULTS OS was significantly harder than PS (P < 0.001). PS was significantly more wear resistant than OS (P < 0.05). PS showed a greater ∆E*ab (increased staining) when placed in wine or coffee showing a significant difference (P < 0.05). SEM showed particle size, shape and distribution were different for PS and OS reflecting the pattern seen on wear surfaces. CONCLUSION Both orthodontic sealants are beneficial for protecting enamel. However with better wear properties PS was superior in resisting mechanical stresses. OS was more color stable.
منابع مشابه
Contemporary Esthetic Orthodontic Archwires – A Review
Growing demand of invisible braces byesthetically conscious patients has led to remarkable inventions in materials for esthetic labial archwires. Archwires with excellent optical clarity and mechanical properties comparable to conventional archwires have been manufactured by almost all the leading companies of orthodontic products in the past two decades, but their clinical use is still limited...
متن کاملAn evaluation of willingness to pay for orthodontic treatments in patients of Shiraz Dental School Clinic
BACKGROUND AND AIM: Estimation of need and demand for orthodontic treatment is important for both health professionals and health policymakers. Need assessment is traditionally done using experts’ opinions; however, patient-centered evaluation can provide a bigger picture of patient’s esthetic and psychological needs. The willingness to pay (WTP) technique is a potentially valid tool for assess...
متن کاملEvaluation of the Effect of an Experimental Herbal versus Fluoridated Mouthwash on Frictional Resistance and Surface Roughness between Orthodontic Brackets and Two Types of Archwire: In Vitro Study
Introduction: The present study aimed to evaluate an experimental herbal mouthwash, as compared to sodium fluoride mouthwash on the frictional resistance and surface roughness between brackets and two rectangular archwire types. Methods: A total of 60 premolar׳s brackets engaged with 0.019×0.025 archwires made of stainless steel and nickel-titanium alloys were used in this study. The samples we...
متن کاملمقایسه میزان ریزنشت نانوکامپوزیت Flowable، کامپوزیت Flowable و سیلنت Conventional در فیشورسیلنت تراپی دندانهای دائمی در شرایط آزمایشگاهی
Background and Aim: Novel dental materials including nanocomposites have been introduced in recent years. It is claimed that they have superior properties such as high esthetic, low wear, increased filler content resulting in better mechanical properties, and releasing ions i.e. fluoride and amorphous calcium phosphate that are important for enamel remineralization. Considering these features, ...
متن کاملContemporary Esthetic Orthodontic Archwires – A Review
Growing demand of invisible braces by esthetically conscious patients has led to remarkable inventions in materials for esthetic labial archwires. Archwires with excellent optical clarity and mechanical properties comparable to conventional archwires have been manufactured by almost all the leading companies of orthodontic products in the past two decades, but their clinical use is still limite...
متن کامل