Current All-Ceramic Systems in Dentistry: A Review
Maria Jacinta M.C. Santos, DDS, MSc, PhD; Max Dorea Costa, DDS, MSc; José H. Rubo, DDS, MSc, PhD; Luis Fernando Pegoraro, DDS, MSc, PhD; and Gildo C. Santos Jr., DDS, MSc, PhD

This article aims to help clinicians understand the advantages and disadvantages of a myriad of ceramic materials and technique options available in dentistry today. The microstructural components, materials’ properties, indications, and names of products are discussed to help clarify their use. Key topics will include ceramics, particle-filled glasses, polycrystalline ceramics, CAD⁄CAM, and adhesive cementation.

Universal Adhesives: The Next Evolution in Adhesive Dentistry?
Gary Alex, DMD

Universal adhesive systems have the potential to significantly simplify and expedite adhesive protocols and may indeed represent the next evolution in adhesive dentistry. But what defines a universal system, and are all these new systems truly “universal” and everything they are claimed to be? This article examines the origin, chemistry, strengths, weaknesses, and clinical relevance of this new genre of dental adhesives.

Use of a Resin-Modified Glass-Ionomer (RMGI) Liner in Conservative Direct Treatment of Deep Caries
John F. Weston, DDS

In this case report, a resin-modified glass-ionomer (RMGI) liner was utilized in deep restorations on premolars that had old, existing amalgam restorations and were experiencing microleakage and sensitivity problems. The materials and technique used allowed for conservative treatment while delivering an esthetic and functionally pleasing result.

Bonding a Veneered Zirconia Anterior Fixed Partial Denture
Nathaniel C. Lawson, DMD, PhD; Ramakiran Chavali, BDS, MS; and John O. Burgess, DDS, MS

Research regarding the wear properties of zirconia has shown that it is more friendly to opposing enamel than veneering porcelain. This case report documents the rationale and procedure for bonding a veneered zirconia restoration. The case demonstrates that, when properly designed, veneered zirconia restorations offer acceptable esthetic and mechanical properties for anterior fixed partial dentures.

Dental Repair Material: A Resin-Modified Glass-Ionomer Bioactive Ionic Resin-Based Composite
Theodore P. Croll, DDS; Joel H. Berg, DDS, MS; and Kevin J. Donly, DDS, MS

This report documents treatment and repair of three carious teeth that were restored with a new dental repair material that features the characteristics of both resin-modified glass-ionomer restorative cement (RMGI) and resin-based composite (RBC). The restorative products presented are reported by the manufacturer to be the first bioactive dental materials with an ionic resin matrix, a shock-absorbing resin component, and bioactive fillers that mimic the physical and chemical properties of natural teeth. 

Provisional Materials: Advances Lead to Extensive Options for Clinicians
John C. Comisi, DDS, MAGD

The progression of provisional materials to bis-acrylics has lead to such improvements as easier handling, improved compressive and tensile strength, less water sorption, and less shrinkage. This review of current products affirms that the choices of provisional materials available for the dental professional today are quite extensive and have advanced the quality of interim restorations.

Predictably Replacing Maxillary Incisors with Implants Using 3-D Planning and Guided Implant Surgery
Peter S. Wöhrle, DMD, MMedSc, CDT

Replacement of multiple adjacent teeth in the esthetic zone with dental implants is a surgical and restorative challenge, especially when an esthetic outcome is essential. Sound diagnosis and treatment planning can be combined with use of cone-beam computed tomography (CBCT) and 3-dimensional (3-D) software to achieve desired results. Placement of implants using guided surgical templates is critical when there is limited space between adjacent teeth or limited bone volume.

CBCT Technology for Diagnosis and Treatment Planning: What General Practitioners Should Consider
Curtis E. Jansen, DDS

Beyond diagnosing fractures and tooth/root anomalies and assessing hard tissue before and after implant placement, cone-beam computed tomography (CBCT) can be beneficial for performing more common diagnostic tasks, such as panoramic x-rays and bitewings. CBCT, which uses a fraction of the radiation dose of medical CT, can also be used to help clinicians create digital versions of their conventional impressions and poured models for digital transmission to other dental team members. For the growing number of practitioners who place implants, CBCT provides the ability to execute “top-down” treatment planning to offer patients restorative-based implant placement.

Contemporary Dental CAD/CAM: Modern Chairside/Lab Applications and the Future of Computerized Dentistry
Neal Patel, DDS

CAD/CAM in dentistry has been particularly useful in enabling the fabrication of custom, patient-specific restorations and prosthetics without the need for traditional analog dental laboratory methods. While the optimal use of CAD/CAM technology must be determined on a case-by-case basis, it is important for clinicians to recognize the opportunity to utilize computerized technology in patient therapy to provide more highly efficient, accurate, and potentially ideal outcomes.

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