--- title: Instructions For Seating C&B Restorations description: Seat your ALLZ and other Zirconia based C&B restorations with PRO-Craft's instructions. --- [Pro Craft Dental Lab Blog ](https://blog.pro-craft.com) # [Instructions For Seating C&B Restorations](https://blog.pro-craft.com/blog/seating-c-b-restorations) Written by [Nicole Donnelly](https://blog.pro-craft.com/author/nicole-donnelly) | July 31, 2017 # Instructions For Seating C&B Restorations Jul 31, 2017 **Instructions For Seating ALLZ and Other Zirconia Based C&B Restorations ** Like most metals, zirconia exhibits a strong affinity for phosphate groups. We can take advantage of this fact with phosphate containing primers, such as Z-Prime Plus. (BISCO DENTAL) Unfortunately, saliva also contains phosphates in the form of phospholipids, so when an ALLZ Zirconia C&B is tried in the patient's mouth and comes in contact with saliva, the phosphate groups in the saliva bind to the zirconia oxide and cannot be rinsed out with water. Attempting to use phosphoric acid (which is full of phosphate groups) to “clean” the saliva out only makes the problem worse. The recommended way to successfully remove these phosphate groups from the interior of a crown is with the use of Ivoclean from Ivoclar. This is a zirconia oxide solution placed inside the restoration for 20 seconds and rinsed out. Due to the large concentration of free zirconia oxide in the Ivoclean, it acts as a sponge and binds to the phosphate groups that were previously bound to the ALLZ restoration. Once the Ivoclean is rinsed out , you will have a fresh bonding surface for the Z-Prime Plus to bond to. **The protocol would be:** - Try in ALLZ Zirconia - Rinse saliva out of restoration. - Place Ivoclean in restoration for 20 seconds and rinse. - Cement restoration with Z-Prime plus and place with cement of your choice or for best results bond. Share Tweet Share Mail   ## Pro-Craft Dental Lab Updates ### [40 Years of Quality & Commitment: The PRO-Craft Story](https://blog.pro-craft.com/pro-craft-dental-quality-commitment) By Nicole Donnelly • 31 Mar, 2022 • For over 40 years, PRO-Craft Dental Laboratory has been a leading industry staple for high quality cosmetic and digital restorative needs. This is our secret to staying consistent, and how we help you streamline the restorative process and eliminate inconsistencies. ### [Dental Impression Materials and Trays](https://blog.pro-craft.com/dental-impression-materials-and-trays) By Nicole Donnelly • 15 Feb, 2022 • To create an accurate dental impression, it's critical to utilize the correct materials and trays. To help you select the materials and trays best fit for your dental practice, we’ve created this guide. ### [Dangers of Offshoring Dental Lab Work](https://blog.pro-craft.com/dangers-of-offshoring-dental-lab-work) 01 Feb, 2022 • The dangers of offshoring dental work include a lack of oversight ensuring quality standards and a lack of transparency. ### [How to Avoid Common Impression Errors](https://blog.pro-craft.com/how-to-avoid-common-impression-errors) By Nicole Donnelly • 18 Jan, 2022 • An accurate impression is the foundation to creating successful bridges, crowns, or dentures. Yet there are multiple factors that can affect accuracy. Here are some solutions to the most common dental impression errors. ### [Guide to Choosing a Dental Laboratory](https://blog.pro-craft.com/guide-to-choosing-a-dental-laboratory) By Nicole Donnelly • 04 Jan, 2022 • Finding a dental laboratory that can consistently provide quality dental restorations and great customer service can be challenging. In this ultimate guide to choosing a dental laboratory, we will go through the 10 fundamentals of excellence that can help you understand the difference between an average lab and an exceptional lab. ### [Troubleshooting Digital Impressions](https://blog.pro-craft.com/troubleshooting-digital-impressions) 08 Dec, 2021 • As the use of digital impressions increases in popularity, it’s important for dentists to develop a standard troubleshooting procedure for their intraoral scanners. In this blog we show you how to troubleshoot those most common issues. ### [Digital versus Traditional Impressions](https://blog.pro-craft.com/digital-versus-traditional-impressions) 23 Nov, 2021 • A digital impression is a technology that allows dentists to create a virtual, computer-generated replica of the mouth by using an oral scanning device. But how does it compare to traditional impressions and what are it's benefits? We answer those questions. ### [How to Take the Perfect Dental Impression](https://blog.pro-craft.com/dental-impressions) By Nicole Donnelly • 04 Nov, 2021 • Here are 14 dental laboratory tips to getting your dental impressions right the first time. Including recommendations on trays, adhesives, and materials.     ### TREATMENT OF OSA AND SNORING 12 Mar, 2019 • The American Academy of Sleep Medicine (AASM) now recommends oral applications such as EMA as a front-line treatment for snoring and mild to moderate sleep apnea and in cases where CPAP has not been tolerated. ### Useful Information From The Bench 11 Dec, 2017 • Instructions For Seating ALLZ and Other Zirconia Based C&B Restorations Like most metals, zirconia exhibits a strong affinity for phosphate groups. We can take advantage of this fact with phosphate containing primers, such as Monobond Plus and Z-Prime Plus. Unfortunately, saliva also contains phosphates in the form of phospholipids, so when an ALLZ Zirconia C&B is tried in the patient’s mouth and comes in contact with saliva, the phosphate groups in the saliva bind to the zirconia oxide and cannot be rinsed out with water. Attempting to use phosphoric acid (which is full of phosphate groups) to “clean” the saliva out only makes the problem worse. The recommended way to successfully remove these phosphate groups from the interior of a crowns with the use of Ivoclean from Ivoclar. This is a zirconia oxide solution placed inside the restoration for 20 seconds and rinsed out. Due to the large concentration of free zirconia oxide in the Ivoclean, it acts as a sponge and binds to the phosphate groups that were previously bound to the ALLZ restoration. Once the Ivoclean is rinsed out, you will have a fresh bonding surface for the Monobond plus or Z-Prime Plus to bond to. The protocol would be: 1. Try in ALLZ Zirconia 2. Rinse saliva out of restoration 3. Place Ivoclean in restoration for 20 seconds and rinse 4. Cement restoration with Z-Prime plus/ Monobond Plus and place with cement of your choice or for best results bond. 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