Esthetically acceptable restorations have become more attainable due to the improvement in restorative materials.1 All-ceramic restorations are among the most esthetically pleasing substitutes for tooth structure due to their similar optical properties compared to natural dentition.2 Despite the esthetic qualities of all-ceramic materials, restorative dentists may have difficulty choosing the optimal shade for a restoration, because of individual differences in shade perception and the ability to match the natural dentition.3 Therefore, modifications with metallic oxide stains are often required to correct slight shade imperfections when compared to adjacent natural teeth. This process is known as extrinsic staining.4Extrinsic staining is the superficial application of a stain to the outermost layer of a ceramic restoration. It is conventionally applied with a fine porcelain brush in order to recreate the special characteristics required to mimic a natural tooth.4, 5 A potential major drawback of this technique is that the layer of stain is thinly applied and is directly exposed to the oral environment.

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We first started out as ?The Paperback Exchange,? a chain of physical bookstores where we would part exchange your beloved books for new stories to transport you to faraway places. However, as shopping started to evolve to online shops and marketplaces, we bid our stores goodbye to become ?PBShop.? This transition has only allowed us to blossom as we now ship thousands of titles to book lovers across the globe. We pride ourselves in being a community of local book lovers which allows our passion and devotion to shine in everything we do. In 2020 we not only celebrated our 20th birthday but our 1st birthday as being completely employee owned after becoming an E.O.T in September 2019. We are proud to be different and embrace standing apart on a book mountain by working from a virtual inventory which allows us to provide thousands of books that may be difficult to get for your bookshelf or your studies. Working with a number of different suppliers allows us to explore other avenues such as puzzles, sheet music and even stationery so we really do have something for everyone. Life is about being versatile in all realms of existence. If this is your first visit or you are a returning customer, we would like to welcome you to the PBShop family, for there is no friend as loyal as a book. We are a company who put our customers at the centre of everything we do as we understand the importance of reading because once you learn to read, you will forever be free. There are a whole lot of things in this world of ours that we are yet to explore, which is why we will forever inspire curious minds.

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Pbshop.co.uk Ltd
Unit 22 Horcott Industrial Estate, Horcott Road, Fairford, GL7 4BX, United Kingdom

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We ask all customers to contact us for authorisation should they wish to return their order. Orders returned without authorisation may not be credited.
If you wish to return, please contact us within 14 days of receiving your order to obtain authorisation.

Returns requested beyond this time will not be authorised.

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Books are shipped from UK warehouse. Delivery thereafter is between 4 and 14 business days dependant upon your location - please do contact us with any queries you may have.

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Shipping rates within U.S.A.
Order quantity	7 to 14 business days	7 to 14 business days
First item	US$ 0.00	US$ 0.00

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