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Featured Article

Clinical and Histologic Evaluations of Porcine-Derived Collagen Matrix Membrane Used for Vertical Soft Tissue Augmentation: A Case Series
Algirdas Puisys, DDS, Spec Perio, PhD/Saulius Zukauskas, DDS/Ricardas Kubilius, DDS, PhD/Mike Barbeck, PhD/Dainius Razukevičius, DDS, PhD/Laura Linkevičiene, DDS, PhD/Tomas Linkevičius, DDS, Dip Pros, PhD

In this issue, Algirdas Puisys et al present “Clinical and Histologic Evaluations of Porcine-Derived Collagen Matrix Membrane Used for Vertical Soft Tissue Augmentation: A Case Series.” The authors evaluate alternative grafting material for soft tissue thickness at implant sites using a porcine collagen membrane. Twenty porcine-derived collagen membranes and bone-level implants were placed in 20 patients. After 2 months, thickened soft tissues were measured and biopsy samples were harvested. All xenografts healed successfully. The average thickness of thin soft tissue before vertical thickening was 1.65 ± 0.36 mm, while tissue thickness increased to 3.45 ± 0.52 mm after the procedure (P < .001); the mean thickness increase was 1.8 ± 0.13 mm. Histologic analysis showed complete integration of the graft and no differences (P = .4578) in vascularization between the host (39.74 ± 17.15 vessels/mm²) and graft (30.43 ± 11.26 vessels/mm²). The authors conclude that porcine-derived membrane can be used for vertical soft tissue thickening with substantial gain in tissue height.

What's New

• Editorial: Global Exploration: East Africa

  Yvonne A. De Paiva Buischi, DDS, PhD/ Peter M. Loomer, BSc, DDS, PhD, MRCD (C), FACD
  

• Comparison of Three Biphasic Calcium Phosphate Block Substitutes: A Histologic and Histomorphometric Analysis in the Dog Mandible

  Octavi Ortiz-Puigpelat, DDS, MS, PhD/ Basel Elnayef, DDS, MS, PhD/ Marta Satorres-Nieto, DDS, MS, PhD/ Jordi Gargallo-Albiol, DDS, PhD, MSc, EBOS/ Federico Hernández-Alfaro, MD, DDS, PhD, FEBOMS
  
  

• Immediate Loading of Implants Inserted Through Impacted Teeth in the Esthetic Area: A Series of 10 Cases with up to 7 Years of Follow-up

  Francesco Amato, MD, DDS, PhD/ Ugo Macca, DDS/ Giulia Amato, DDS/ Davide Mirabella, DDS, MSD
  
  

• Crestal Bone and Keratinized Tissue Around 3.0-mm Laser-Microtextured Dental Implants After 1 Year in Function: A Case Series

  Edgard El Chaar, DDS, MS/ Shivangi Amin, BDS/ Stephanie Cruz, DMD/ Natalia Gil-Fernandez, DDS/ Steven Engebreston, DMD, MS
  
  

• Clinical and Histologic Evaluations of Porcine-Derived Collagen Matrix Membrane Used for Vertical Soft Tissue Augmentation: A Case Series

  Algirdas Puisys, DDS, Spec Perio, PhD/ Saulius Zukauskas, DDS/ Ricardas Kubilius, DDS, PhD/ Mike Barbeck, PhD/ Dainius Razukevičius, DDS, PhD/ Laura Linkevičiene, DDS, PhD/ Tomas Linkevičius, DDS, Dip Pros, PhD
  
  

• Long-Term (15 to 20 Years) Outcomes of Papillae Preservation Flap Surgery in Esthetic Areas

  Renzo Guarnieri, MD, DDS
  
  

• A Randomized Controlled Clinical Trial Comparing Conventional and Computer-Assisted Implant Planning and Placement in Partially Edentulous Patients. Part 3: Time and Cost Analyses

  David Schneider, PD Dr Med, Dr Med Dent/ Manuel Sancho-Puchades, DMD, MSc, PhD/ Florian Schober, Dipl. Ing./ Daniel Thoma, PD Dr Med Dent/ Christoph Hämmerle, Prof Dr Med Dent/ Ronald Jung, Prof Dr Med Dent, PhD
  
  

• Clinical Guidelines for Implant Treatment in Patients with Down Syndrome

  Hugo De Bruyn, DDS, MSc, PhD/ Maarten Glibert, DDS, MSc/ Liesbet Matthijs, DDS, MSc/ Martens Filip, DDS, MSc/ Véronique Christiaens, DDS, MSc/ Luc Marks, DDS, MSc, PhD
  
  

• Expansion of the Zone of Keratinized Tissue for Healthy Implant Abutment Interface Using De-epithelialized Amnion/Chorion Allograft

  Nicola De Angelis, DDS, DMSc/ Zethy Hanum Kassim, DDS, MSc/ Massimo Frosecchi, DDS/ Antonio Signore, DDS, PhD
  
  

• Bone Tissue Responses to Zirconia Implants Modified by Biomimetic Coating Incorporated with BMP-2

  Fei Teng, MDS, PhD/ Yuanna Zheng, DDS, PhD/ Gang Wu, PhD/ Bart Beekmans, DDS/ Daniel Wismeijer, PhD/ Xingnan Lin, MDS, PhD/ Yuelian Liu, PhD
  
  

• Impact of Soft Tissue Grafts to Reduce Peri-implant Alterations After Immediate Implant Placement and Provisionalization in Compromised Sockets

  Fausto Frizzera, DDS, MSc, PhD/ Rubens Moreno de Freitas, DDS, MSc, PhD/ Oscar Fernando Muñoz-Chávez, DDS, MSc, PhD/ Guilherme Cabral, DDS/ Jamil Awad Shibli, DDS, MSc, PhD/ Elcio Marcantonio Jr, DDS, MSc, PhD
  
  

• Cryopreserved Umbilical Cord Allograft for Root Coverage of Gingival Recession Defects: A Case Series

  Bradley Ross, DMD/ Scott B. Ross, DDS
  
  

• A Retrospective Tomographic and Histologic Analysis of Horizontal Bone Augmentation in Maxillary Atrophic Ridges Using Resorbable Membrane with Anorganic Bovine Bone-Derived Mineral and Plasma Rich in Growth Factors

  Massimo Lorenzetti, MD, DDS/ Maurizio Vono, DDS/ Virginia Lorenzetti, DDS
  
  

• Osteotome Sinus Floor Elevation Without Grafting: A 10-Year Study of Cone Beam Computerized Tomography vs Periapical Radiography

  Marc El Hage, DMD, MS, MBA/ Nathalie Nurdin, PhD/ Semaan Abi Najm, DMD, MS/ Mark Bischof, DMD/ Rabah Nedir, DMD
  
  

• Feasibility of Alloplasts in Extraction-Socket and Sinus Augmentation Procedures

  Myron Nevins, DDS/ Stefano Parma-Benfenati, DDS/ Luca Gobbato, DDS, MS/ Teresa Lombardi, DDS/ Claudio Stacchi, DDS, MSc/ Célia Coutinho Alves, DDS, PhD/ Primo Galletti, MD, DDS/ Wahn Khang, DMD/ David M. Kim, DDS, DMSc
  
  

• Peri-implant Infection Concomitant with a Flare-up Episode of Chronic Periodontitis: An Unusual Regeneration Following Treatment and a 5-Year Follow-up

  Georges Tawil, DDS, D.Sc Od. FICD, FACD/ Peter Tawil, DDS, MS, ABP
  
  

• A Novel Connective Tissue Graft Harvesting Technique: The Ring Method

  Nejat Nizam, DDS, PhD/ Aliye Akcalı, DDS, PhD
  
  

• Strength of a Zirconia-Reinforced Lithium Silicate Ceramic: Acid-Etching Time and Resin Cement Application Effects

  Nayara Fernanda Barchetta, MSD/ Marina Amaral, MSD, PhD/ Catina Prochnow, MSD, PhD/ Flávia Pires Rodrigues, MSD, PhD/ Marco Antonio Bottino, PhD/ Luiz Felipe Valandro, MSD, PhD/ Renata Marques de Melo, MSD, PhD
  
  

• Split-Mouth Comparison of Coronally Advanced Flap with Connective Tissue Graft or Collagen Matrix for Treatment of Isolated Gingival Recessions

  Urban Matoh, DDS/ Milan Petelin, DDS, PhD/ Rok Gašperšič, DDS, PhD