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International Journal of Periodontics & Restorative Dentistry

Guei-Hua Hu, Stuart J Froum, Abdullah Alodadi, Fuyuki Nose, Yung-Cheng Paul Yu, Takanori Suzuki, Sang-Choon Cho
This paper introduces a three-stage split-crest (TSSC) technique for horizontal ridge augmentation in the atrophic posterior mandible. The first stage consists of splitting the ridge. Following a 3- to 4-week healing interval, the second stage consists of expansion of the cortical plate (without elevating the periosteum) and placement of a bone replacement graft material. After 3 to 4 months of healing, the implants are placed. The advantages of this three-stage technique are increased vascularization to the surgical area, a decrease in procedure complications, and improved implant survival rates...
March 13, 2018: International Journal of Periodontics & Restorative Dentistry
Daniele Botticelli, Vittoria Perrotti, Adriano Piattelli, Giovanna Iezzi
The aim of the present study was a histologic and histomorphometric analysis of the peri-implant tissue reactions and of the bone-titanium interface in successfully osseointegrated, clinically stable, and immobile retrieved titanium dental implants after a long loading period. Four successfully osseointegrated and stable implants with a sandblasted surface were retrieved from a patient due to fracture, two after 14 years of loading and two after 17 years. None of these implants has been previously reported...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Lindiane Cogo Rigo, Dimorvan Bordin, Vinicius Pavesi Fardin, Paulo G Coelho, Timothy G Bromage, Andre Reis, Ronaldo Hirata
This study evaluated the influence of polishing protocols on the surface roughness of flowable and regular bulk fill composites. Five bulk fill composites were tested: SureFil SDR Flow (SDR), Tetric EvoFlow Bulk fill (TEF), Filtek Bulk Fill Flowable (FIF), Tetric EvoCeram Bulk Fill (TEC), and Filtek Bulk Fill Posterior (FIP). Two polishing protocols were tested: Sof-Lex and Astropol. Astropol created a smoother surface for FIP (P < .05); however, the polishing protocol did not influence surface roughness on TEC (P > ...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Roberto Crespi, Paolo Capparé, Giovanni Crespi, Giorgio Gastaldi, Georgios E Romanos, Enrico Gherlone
The aim of this study was to compare midfacial soft tissue assessment and horizontal width changes of fresh socket implants in immediate and delayed prosthetic restorations. Patients requiring extractions in the maxillary esthetic zone were recruited. In one group, 30 implants were placed using an immediate loading approach; in the second group, 30 implants were loaded after a period of 3 months. At the 4-year follow-up, statistically significant differences (P < .001) were found. Immediate implants restored on the day of surgery demonstrated more stable midfacial soft tissue levels and bone volume maintenance than delayed implants...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Celia Clemente de Arriba, Miguel Angel Alobera Gracia, Paulo G Coelho, Rodrigo Neiva, Dennis P Tarnow, Mariano Del Canto Pingarron, Soledad Aguado-Henche
Porous tantalum trabecular-structured metal (PTTM) has been applied to titanium orthopedic and dental implants. This study evaluated the healing pattern of bone growth into experimental PTTM cylinders (N = 24; 3.0 × 5.0 mm) implanted in the partially edentulous jaws of 23 healthy volunteers divided into four groups. Six PTTM cylinders per group were explanted, prepared, and analyzed histologically/metrically after 2, 3, 6, and 12 weeks of submerged healing. PTTM implant osseoincorporation resulted from the formation of an osteogenic tissue network that over the course of 12 weeks resulted in vascular bone volume levels in PTTM that are comparable to clinically observed mean trabecular volumes in edentulous posterior jaws...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Francesco Ferrarotti, Federica Romano, Andrea Quirico, Matteo Di Bella, Sara Pallotti, Mario Aimetti
This case series evaluated the healing of deep intrabony defects treated with a combination of enamel matrix derivative and autologous particulate bone harvested from the buccal and lingual/palatal cortical plate with a Piezosurgery device. A total of 15 defects with a predominantly one- or two-wall component were consecutively treated in 15 patients with advanced chronic periodontitis. In all selected sites, the three-wall component was ≤ 25% of the total defect depth. Clinical and radiographic parameters were recorded at baseline and 12 and 24 months postoperatively...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Stefano Sivolella, Chiara Perin, Marco Capecchi, Valerio Buongiorno, Marialuisa Valente
Lateral periodontal cysts (LPCs) are rare odontogenic cysts of developmental origin. A 52-year-old man presented with an asymptomatic gingival swelling located between the mandibular left canine and first premolar, both of which were vital. Radiography showed a well-circumscribed radiolucent area and loss of the lamina dura around the tooth socket in contact with the lesion and of the interproximal buccal bone. The lesion was enucleated. The defect was immediately grafted with a 1:1 mixed autologous and heterologous bone graft covered with a collagen membrane...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Federico Tirone, Stefano Salzano, Marco Pagano
Healing of extraction sockets may sometimes result in formation of fibrous tissue instead of bone, even after 4 months, an occurrence that may hinder implant placement. The aim of this preliminary observational study was to histologically evaluate quality and amount of bone regeneration after treating nonhealing sockets with a bovine-derived xenograft enriched with porcine collagen (Bio-Oss Collagen, Geistlich) without barrier membranes. Biopsy specimens were collected during implant placement, 4 months after grafting...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Alireza Torabi, Babak Najafi, Howard J Drew, Emil G Cappetta
Improvement of smile esthetics is a major goal of modern dentistry. Various treatment modalities have been proposed to correct excessive gingival display (EGD), depending on the identified etiologies. This study reports on the clinical and patient-centered outcomes of a novel lip repositioning technique with vestibular shallowing approach in the treatment of three types of EGD with varying etiologies. Periosteal fenestration with cicatrization (scarification) was performed at the mucogingival junction to ensure the stability of esthetic outcomes...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Erhan Tuğcu, Burçin Vanlıoğlu, Yasemin Kulak Özkan, Yilmat Umut Aslan
The purpose of this study was to evaluate the marginal adaptation and fracture load of ceramic laminate veneers on teeth with different preparation depths. A total of 75 extracted intact human maxillary central incisors were prepared with three different preparation depths (P) and assigned to the following five groups (n = 15): P1 (0.3-mm depth of preparation; preparation entirely in enamel); P2 (0.5-mm depth of preparation; preparation in enamel and dentin complex); P3 (1-mm depth of preparation; preparation entirely in dentin); P4 (no preparation, only surface roughening); and P5 (unrestored, intact teeth as control)...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Kensuke Yamauchi, Shinnosuke Nogami, Yoshihiro Kataoka, Shigeto Koyama, Bernd Lethaus, Tetsu Takahashi
The objective of this study was to present a novel procedure for cortical bone repositioning (CBR) that maintains a secure space under the periosteum by replacement of the lateral cortex via fixation, employing titanium screws. Seven systemically healthy patients presenting with horizontal alveolar bone defects in radiographs and CT images were enrolled for CBR technique for horizontal alveolar bone augmentation. A lateral cortical bone block was cut in the defects and freed from the original bony surface. A screw was inserted into the block, and the block was placed laterally to allow fixation...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Emanuele De Martinis Terra, Marco Berardini, Paolo Trisi
This report presents six consecutive cases of peri-implantitis associated with residual methacrylate cement. The cases responded to cement removal and disinfection procedures. Six patients, each presenting one methacrylate cement-retained implant restoration and showing peri-implant inflammation and bone loss, were treated. All the cases were negative for bleeding on probing after 6 weeks, and this was maintained at 1 year of follow-up from nonsurgical therapy and crown refixation with alternative and resorbable cement...
February 16, 2018: International Journal of Periodontics & Restorative Dentistry
Nuria Otero, Javier Scarton, Laura Lugo Pizzolante, Stefano Inglese, Anthony G Sclar, Fong Wong
Prosthetic rehabilitation of malpositioned anterior dental implants can be challenging. Interdisciplinary treatment planning and precise execution of biologically acceptable prosthetic and surgical protocols are essential to achieve optimal esthetic results and while avoiding and managing esthetic complications. This case study focuses on the restorative aspect. Two sets of custom gold abutments were used prior to and following surgical correction of a pre-existing soft and hard tissue ridge defect surrounding maxillary central incisor implant restorations...
February 16, 2018: International Journal of Periodontics & Restorative Dentistry
Nejat Nizam, Aliye Akcalı
This case series describes a treatment method in which the natural tooth was used as the temporary and permanent reconstruction after immediate implantation in the esthetic zone of periodontally compromised patients. Five patients with a hopeless tooth in the esthetic zone due to periodontal causes were included. The tooth was extracted, and immediate implantation protocol was followed. The extracted tooth was adapted over a temporary abutment during the osseointegration period, and the same tooth served as the final prosthetic reconstruction with a customized zirconia abutment...
February 16, 2018: International Journal of Periodontics & Restorative Dentistry
Nejat Nizam, Aliye Akcalı
The aim of these case reports was to introduce a simplified novel connective tissue graft (CTG) harvesting technique, the ring method, which could be used in the maxillary tuberosity area in particular. A special CTG harvesting punch was fabricated to obtain a ring-shaped CTG that had a uniform thickness. The ring graft was then used for peri-implant soft tissue augmentation with successful clinical outcomes. The ring method is a technically insensitive and minimally invasive surgical procedure that provides a certain amount of CTG for various periodontal plastic surgical interventions...
February 16, 2018: International Journal of Periodontics & Restorative Dentistry
Massimo Lorenzetti, Maurizio Vono, Virginia Lorenzetti
A total of six patients treated from 2010 to 2014, having a knife-edge ridge (Cawood-Howell Class IV resorbed ridges) and requiring an implant-prosthetic rehabilitation, were selected. Tomographic measurement of the edentulous ridges was performed before grafting and after implant placement. At 6 months postgraft, a total of 41 implants had been inserted, 17 in the posterior region, 12 in the central region, and 12 in the anterior region. No surgical or healing complications were recorded, and the prostheses were loaded 6 to 9 months after implant placement...
February 16, 2018: International Journal of Periodontics & Restorative Dentistry
Luca Francetti, Roberto Weinstein, Silvio Taschieri, Stefano Corbella
Gingival recession can cause an esthetic impairment or dentin hypersensitivity due to root surface exposure to the oral cavity. These conditions may require specific surgical interventions to achieve root coverage. This controlled clinical trial on 20 subjects compared coronally advanced flap (CAF) technique and CAF plus subepithelial connective tissue graft (CTG) for the treatment of single maxillary gingival recession. Recession height (REC) and complete root coverage (CRC) were considered as primary outcomes...
February 16, 2018: International Journal of Periodontics & Restorative Dentistry
Joseph P Fiorellini, Michael R Norton, Kevin WanXin Luan, David Minjoon Kim, Kei Wada, Hector L Sarmiento
The objective of this study was to evaluate the effectiveness of precise three-dimensional hydroxyapatite printed micro- and macrochannel devices for alveolar ridge augmentation in a canine model. All grafts induced minimal inflammatory and fibrotic reactions. Examination of undecalcified sections revealed that both types of grafts demonstrated bone ingrowth. The majority of the bone growth into the block graft was into the channels, though a portion grew directly into the construct in the form of small bony spicules...
February 14, 2018: International Journal of Periodontics & Restorative Dentistry
Shih-Cheng Wen, Jia-Hui Fu, Hom-Lay Wang
The aim of this study was to compare the amount of radiographic horizontal buccal bone thickness (BBT) at implant dehiscence defects grafted with the sandwich bone augmentation (SBA) and modified sandwich bone augmentation (MSBA) techniques. Compared to the SBA technique, the MSBA approach involved an additional outer layer of deproteinized bovine bone mineral (DBBM) to maintain the space for bone regeneration for longer periods. A total of 19 patients, each with a buccal implant dehiscence defect, were recruited...
November 2018: International Journal of Periodontics & Restorative Dentistry
Johan Peter Woelber, Jonathan Fleiner, Julia Rau, Petra Ratka-Krüger, Christian Hannig
A systematic literature review was performed regarding the accuracy and usefulness of cone beam computed tomography (CBCT) in the field of periodontology. A total of 580 articles were identified, of which 13 met the inclusion criteria. Results showed a high accuracy of CBCT in visualizing periodontal structures and the demonstrated the usefulness of CBCT in regenerative periodontal surgery of maxillary molars. It remains questionable whether this gain of additional information actually leads to a better clinical outcome in periodontal treatment...
March 2018: International Journal of Periodontics & Restorative Dentistry
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