QUINTESSENCE OF DENTAL TECHNOLOGY 2021/2022, VOLUME 44

EDITORIAL
Looking Ahead and Moving Forward
Sillas Duarte, Jr

MASTERPIECE
Healing Guided by Design: The Crown-Lengthening Procedure Revisited
Eric Van Dooren Florin Cofar Ioana Popp Ioan Cofar Marcelo Giordani Gustavo Giordani Victor Clavijo

MASTERCLASS
RepliCAD—Digital Impression Strategies to Replicate the Soft Tissue Architecture and Teeth Position for Predictability in Final Restorations
Victor Clavijo Ricardo Recena Paulo Fernando Mesquita de Carvalho Willy Clavijo Leonardo Bocabella

BIOMATERIALS UPDATE
Gradient Multilayered Zirconia
Sillas Duarte, Jr Victor Clavijo Willy Clavijo/Jin-Ho Phark

MASTERPIECE
The Modified All-On-4 Concept: Keeping Teeth for Lip Support and to Maintain Patients’ Identity
Iñaki Gamborena Yoshihiro Sasaki Markus B. Blatz

Library-Based Design:
Workflow and Bottlenecks
Florin Cofar Ioan Barbur Gustavo Giordani Marcelo Giordani Ioan Cofar Eric Van Dooren Ioana Popp Paul Ficut

Minimally Invasive Esthetic Approach in Full-Mouth Rehabilitation:
Combining a Digital Workflow Using Intraoral and Facial Scanners
Anabell Bologna Rafael Laplana

MASTERCLASS
Push the Limits: Porcelain Laminate Veneer Preparation for Intraoral Scanning
Masayuki Okawa Akikazu Shinya Shogo Yamamoto

The Digital Alveolar Support Technique:
Use of Natural Shape to Design the Soft Tissue
Florin Cofar Ioan Barbur Gustavo Giordani Marcelo Giordani Ioan Cofar Eric Van Dooren Ioana Popp Paul Ficut

Virtual Dentoalveolar Clone Concept in the Esthetic Zone:
Volumetric Assessment of Tissue Changes
Ivan Contreras Molina Diego Michel A. Castillo Sauceda Kyle Stanley Gil Contreras Molina

The 4_Spheres Technique
Mariano Maurizi

Restoration of Endodontically Treated Teeth:
Classification of Remaining Dental Structure for Adhesive Restorative Procedures
Erika Clavijo Victor Clavijo

The Double-Crown Technique for Masking Discoloration:
Separating the Masking and Esthetic Parts of the Restoration
Aiham Farah Anas Aloum

Digital Workflows to Optimize Peri-implant Soft Tissue Management:
The Inverse Scan Body Concept
Oscar Gonzalez-Martín Manuel Martín-Luque Andrés Acevedo Gustavo Ávila-Ortiz

QDT 2021/2022 introduces new digital concepts and novel treatment strategies that are sure to inspire the dental technician and restorative clinician. New this year are links to informative videos to give readers a dynamic representation of the new techniques presented. Original articles in this year’s volume describe the digital alveolar support technique, digital impression strategies for more predictable final restorations, a modified All-on-4 concept that retains teeth for natural dentofacial esthetics, and a new crown-lengthening approach for optimal soft tissue healing. “Biomaterials Update” explores gradient multilayered zirconia for expanding the indication of monolithic zirconia to the esthetic zone. These are but a sampling of the articles in this beautifully produced annual publication.