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Dental Tribune Middle East & Africa Edition | 3/2016 lab tribune 2 ADA CERP is a service of the American Dental Association to assist dental professionals in identifying quality providersof continuing dental education. ADA CERP does not approve or endorse individual courses or instructors, nor does it imply acceptance of credit hours by boards of dentistry. Join the largest educational network in dentistry! www.DTStudyClub.com – education everywhere and anytime – live and interactive webinars – more than 1,000 archived courses – a focused discussion forum – free membership – no travel costs – no time away from the practice – interaction with colleagues and experts across the globe – a growing database of scientific articles and case reports – ADA CERP-recognized credit administration register for FREE Dental Tribune Study Club ◊Page1 Howdoesit affect restorations? With the modern translucent substructures less light would reflect, what reduces the brightness of the fabricated restora- tion. To counteract this effect, IPS e.max Ceram “Power Dentin” and“PowerIncisal”materialsweredeveloped(Fig.5). WhereisIPSPowerDentinfromDeepDentin? Deep Dentin is basically developed to enhance the Chroma di- mensionofashade,andsubsequent- ly increases opacity and value of the ceramic restoration, whereas Power Dentin is developed to enhance the Value dimension of a shade in the firstplace,andindirectlyandslightly increasethechromaofaceramicres- toration. Whatisthechangeneededonthelay- eringdiagramafterPOWER? nochangeisrequiredonthefamiliar layeringdiagram,Powerdentinisad- ditional optional layer, just like Deep dentin, but deep dentin enhance the chroma, while Power dentin en- hancethevalue,soitcanbe: 1- either placed bucckly as an inter- mediate layer between the frame and the Dentin layer, and especially in the cervical third where build up ceramicatitsmaximumthickness. 2-orusedinsteadofDentin,forcom- pletebodybuildup. In what case scenarios IPS POWER is recommended? (Fig.6,7) 1- patient cases when translucent frameworks are used, Like Zenostar (T or MT) zirconium oxide (ZrO2), or lithium disilicate (LS2) IPS e.max (LT orHT) 2- patient cases when natural teeth clearlyexhibitgreaterbrightness. 3-patientcaseswhenwehaveathick space bucckly, or extremely thin space bucckly, to layer on with IPS e.maxCeram. 4- patient cases when natural teeth which need to be shade-matched ex- hibithighfluracense, what’svisually interpretedashighervalueeffect. 5- patient cases when Bleach colors offinalrestorationisrequired,Power bleachdentin&Incisalrangeexhibit highervalueandsubsequentlyhigh- erbleachcolorstability. 6- patient cases when more light- from the inside out- required for the restorations, knowing that intraoral is a dark cavity, and slightly brighter restorations are always recommend- ed to compensate the lack of light insidethemouthwhererestorations willendupaftercementation.fig 7- patient cases when stumps (pre- paredtooth)arenotvitalandexhibit discoloration What are the delivery forms of IPS Power? IPS e.max Ceram Power Dentin (PD) materials are available in all A – D shades and 4 Bleach BL shades. The IPSe.maxCeramPowerIncisalmate- rialsareavailablein4shades.Notein (Fig. 8,9) a comparison in few shades andincisalsbetweenbefore/afterIPS Power. CaseReport inPictures Figure10:Discoloredgrayishstump,andbrightnaturaladjacent centralBL4. Figure 11:Using IPS e.max Ceram Power Dentin BL4 & Power BL incisal tobuildup thecentral,wasimperative tohelpcounteract the grayish effect, and match the level of brightness exist in the natural symmetrical central, IPS e.max Press MO0 frame was used, and bleach XL try-in material from VarioLink II was also used todo the tryinbeforecementation. Figure 12: Picture was taken right after cementation, it shows thematchinginallshadedimensionsandespeciallyValue. Contact Information IvoclarVivadent AG Bendererstrasse2 9494Schaan/Liechtenstein Tel.:+4232353535 E-mail:info@ivoclarvivadent.com www.ivoclarvivadent.com