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International Journal of Periodontics & Restorative Dentistry

Marc L Nevins, Marcelo Camelo, Anthony Prudenti, Soo-Woo Kim, Raquel Borges Camelo Surette, Julie Mitchell
The goal of this case series report is to demonstrate the predictability of providing immediate restorations with an implant specifically designed to achieve high primary stability, and to report on 12-month survival outcomes. Twenty-nine implants were placed in eight patients with various tooth-replacement needs, from single teeth to partially edentulous spans to fully edentulous mandibles. A new tapered-implant system (The Marc Nevins, Little Implant) was utilized that incorporates a self-tapping thread design with a thread pitch and thread lead to improve primary stability at insertion...
April 16, 2019: International Journal of Periodontics & Restorative Dentistry
Serhat Köseoğlu, Levent Savran, Bilal Yaşa
Treatment of gingival recessions associated with noncarious cervical lesions (NCCL) can be a challenging clinical situation for clinicians. Both periodontal and restorative treatment can be necessary for this kind of defect. By using both digitally precise computer-aided design/computer-assisted manufacture (CAD/CAM) procedures and natural inlay (NI) material for restoration of defects before the coronally advanced flap (CAF) surgery, attachment of soft tissues on the root surface can be achieved successfully...
April 16, 2019: International Journal of Periodontics & Restorative Dentistry
Urban Matoh, Milan Petelin, Rok Gašperšič
Collagen matrices (CMs) could be used instead of connective tissue grafts (CTGs) for treatment of gingival recession (GR). The authors aimed to compare clinical outcomes after treatment of isolated GR affecting both maxillary canines of 10 patients (n = 10) with CM (OsteoBiol Derma) or CTG in conjunction with coronally advanced flap. After 12 months, CM and CTG showed complete correction in 7/10 and 10/10 of sites, respectfully, and percentage of root coverage was 85% ± 24% and 100%, respectively. For treatment of isolated GR, CM is a viable alternative to CTG...
May 2019: International Journal of Periodontics & Restorative Dentistry
Nayara Fernanda Barchetta, Marina Amaral, Catina Prochnow, Flávia Pires Rodrigues, Marco Antonio Bottino, Luiz Felipe Valandro, Renata Marques de Melo
This study aimed to evaluate the effect of hydrofluoric (HF)-acid-etching time and the impact of a resin-cement layer on the biaxial flexural strength and structural reliability of a zirconia-reinforced lithium silicate (ZLS) glass ceramic. Disc-shaped specimens (n = 15) were divided according to: etching time (conditioning with 10% HF acid for 20, 40, and 60 seconds), and application of a resin-cement layer. Biaxial flexural, contact angle, and roughness analyses were performed. When the resin-cement layer was not present, flexural strength data increased with increasing etching times: 20 seconds = 250...
May 2019: International Journal of Periodontics & Restorative Dentistry
Georges Tawil, Peter Tawil
Chronic periodontitis progression may go through phases of remission and exacerbation. The possibility of periodontal pathogens translocating from infected periodontal sites to peri-implant sites has been reported. Additionally, a history of periodontal disease seems to be a risk factor for peri-implantitis. The present case reports a flare-up of chronic periodontitis concomitant with an episode of peri-implant infection on a documented stable implant site. Periodontal infection was managed nonsurgically by scaling root planing and antibiotic treatment...
May 2019: International Journal of Periodontics & Restorative Dentistry
Myron Nevins, Stefano Parma-Benfenati, Luca Gobbato, Teresa Lombardi, Claudio Stacchi, Célia Coutinho Alves, Primo Galletti, Wahn Khang, David M Kim
Thirty-eight patients (aged 25 to 74) requesting extraction-socket and sinus augmentation procedures (27 and 11 patients, respectively) prior to implant placement volunteered to participate in this case series protocol. Surgical sites were grafted with either biphasic calcium phosphate (BCP) + collagen (for extraction-socket augmentation) or BCP with a collagen barrier membrane (for maxillary sinus augmentation). All patients completed the 1-year postloading follow-up, which consisted of clinical and radiographic evaluations...
May 2019: International Journal of Periodontics & Restorative Dentistry
Marc El Hage, Nathalie Nurdin, Semaan Abi Najm, Mark Bischof, Rabah Nedir
This article aims to evaluate and compare the 10-year bone anchorage and protrusion of implants into the sinus using cone beam computerized tomography (CBCT) and periapical radiography. Implants (≤ 10 mm) were placed with osteotome sinus floor elevation (OSFE) without grafting in maxillae with bone height ≤ 8 mm. After 10 years, the CBCT analysis showed bone presence at the buccal and palatal implant sides and corroborated the results obtained using periapical radiographs. In the absence of any symptom or complication, the use of two-dimensional radiography is sufficient for routine long-term follow-up of implants after OSFE without grafting...
May 2019: International Journal of Periodontics & Restorative Dentistry
Bradley Ross, Scott B Ross
Gingival recession is a component of periodontal disease that leads to exposure of the root surface, root hypersensitivity, and esthetic concerns. Treatment of these cases is typically performed with autologous grafts harvested from the palate. However, this is associated with a second surgical site that increases surgical time and patient morbidity. A potential alternative is the use of cryopreserved umbilical-cord allografts, which are known to contain anti-inflammatory properties and have been used clinically by numerous medical specialties...
May 2019: International Journal of Periodontics & Restorative Dentistry
Fei Teng, Yuanna Zheng, Gang Wu, Bart Beekmans, Daniel Wismeijer, Xingnan Lin, Yuelian Liu
This study aimed to histologically investigate the bone tissue response to zirconia implants functionalized with a biomimetic calcium phosphate (CaP) coating incorporated with bone morphogenetic protein-2 (BMP-2). Zirconia implants coated with biomimetic CaP were prepared with and without BMP-2. Untreated zirconia implants served as a control. These three groups of implants were placed randomly in the mandibles of six beagle dogs (n = 6). Three months later, samples were harvested for histomorphometric analysis...
May 2019: International Journal of Periodontics & Restorative Dentistry
Nicola De Angelis, Zethy Hanum Kassim, Massimo Frosecchi, Antonio Signore
Keratinized tissue around implants is beneficial for soft tissue stability and esthetics. The aim of this investigation is to show the use of amnion/chorion membrane to increase the keratinized tissue. Fifteen patients were grafted with the allograft at the first or second stage of implant surgery. The mean values of keratinized tissue were 1.27 ± 0.46 mm, 2.00 ± 0.38 mm, 2.80 ± 0.78 mm, and 3.27 ± 0.80 mm at the initial evaluation and 7, 15, and 60 days postsurgery (prosthetic delivery was at day 60), respectively (P < ...
May 2019: International Journal of Periodontics & Restorative Dentistry
David Schneider, Manuel Sancho-Puchades, Florian Schober, Daniel Thoma, Christoph Hämmerle, Ronald Jung
This paper performed time and cost analyses and compared conventional vs computer-assisted implant planning and placement (CAIPP) protocols when placing single implants in partially edentulous patients. Partially edentulous patients were randomly allocated to one of three treatment groups: preoperative planning based on a conventional two-dimensional radiograph and free-hand implant placement (control [C], n = 26) or computer-assisted implant planning based on three-dimensional (3D) computer-tomography (test group 1 [T1], n = 24; test group 2 [T2], n = 23)...
May 2019: International Journal of Periodontics & Restorative Dentistry
Renzo Guarnieri
Several techniques have been proposed to maintain full papillary form and preserve soft tissue during periodontal surgical access. However, very little evidence of long-term results is available. The aim of the present paper is to report the 15- to 20-year follow-up outcomes of a case series study of papillae preservation flap surgery in esthetic areas. Twenty-two patients (10 women, 12 men; mean age: 41.3 years) with moderate to advanced generalized periodontitis were included in this study carried out in a private office from 1994 to 1996...
May 2019: International Journal of Periodontics & Restorative Dentistry
Algirdas Puisys, Saulius Zukauskas, Ricardas Kubilius, Mike Barbeck, Dainius Razukevičius, Laura Linkevičiene, Tomas Linkevičius
This case series aimed to clinically and histologically evaluate porcine-derived membrane used for vertical thickening of thin soft tissues. 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 < ...
May 2019: International Journal of Periodontics & Restorative Dentistry
Edgard El Chaar, Shivangi Amin, Stephanie Cruz, Natalia Gil-Fernandez, Steven Engebreston
The purpose of this case series was to evaluate peri-implant tissues in 10 patients at 1 year after placement of a tapered 3.0-mm laser-microtextured dental implant (Laser-Lok, BioHorizons) using a two-stage approach. Clinical and radiographic measurements were assessed. Keratinized tissue at the facial surfaces of each implant had a slight increase of 0.73 mm (95% confidence interval [CI], P = .058), and marginal bone levels had significant increase of 1.85 mm (95% CI, P = .005) at 1 year compared to baseline...
May 2019: International Journal of Periodontics & Restorative Dentistry
Francesco Amato, Ugo Macca, Giulia Amato, Davide Mirabella
The purpose of this case series was to evaluate the survival rate and the incidence of complications of implants inserted and immediately loaded in sites where an impacted tooth was present in the anterior maxillary or mandibular arches (incisor to premolar). The implants were immediately inserted, drilling through the impacted teeth. Site preparation started in the crestal bone and continued into the impacted tooth's enamel and dentin. Seven patients were treated and 11 implants were inserted, 3 in the mandibular arch and 8 in the maxillary arch...
May 2019: International Journal of Periodontics & Restorative Dentistry
Octavi Ortiz-Puigpelat, Basel Elnayef, Marta Satorres-Nieto, Jordi Gargallo-Albiol, Federico Hernández-Alfaro
The purpose of this animal study was to determine which ratio of hydroxyapatite (HA) and tricalcium phosphate (TCP) is the most appropriate in the composition of alloplastic biphasic block grafts, in terms of bone density and bone formation, for the regeneration of alveolar defects. Different concentrations of HA/TCP were used for the alloplastic block grafts: 100/0 (HA100 group), 79/21 (HA75 group), and 57/43 (HA50 group); the control treatment filled the defect with a collagen plug. All control and test sites were covered with a resorbable collagen membrane...
May 2019: International Journal of Periodontics & Restorative Dentistry
Fady A El Hajj, Ramzi V Abou-Arraj, Michael S Reddy, Zeina Ak Majzoub
The objectives of this study were to clinically and histologically assess the capacity of bilaminar subepithelial connective tissue grafts (SCTGs) alone or in combination with gingivoplasty (Gv) to increase the keratinized gingiva width (KGW) in contralateral mandibular sites lacking KG (10 patients, 42 sites). The effects of Gv timing (1 vs 2 months) and technique (blade vs laser) were also evaluated. SCTGs alone resulted in mean KGW increase of 0.1 to 0.7 mm. Laser-Gv significantly increased KGW by an additional 1...
March 2019: International Journal of Periodontics & Restorative Dentistry
Michele Paolantonio, Paolo De Ninis, Lorenzo Secondi, Beatrice Femminella
Gingival thickness plays a pivotal role in both the etiology and treatment of gingival recessions. When treating gingival recessions by different periodontal plastic surgery techniques, a relationship has been reported between the thickness of the tissue used to cover the exposed root surface and the recession reduction. This case series illustrates a technique making use of a very thick graft, which consists of the entire thickness of the palate in its central part, from the periosteum to the epithelium, to obtain complete root coverage with high predictability...
March 2019: International Journal of Periodontics & Restorative Dentistry
Bálint Molnár, Eszter Molnár, Réka Fazekas, Bernadett Gánti, Barbara Mikecs, János Vág
Postoperative complications may occur during the healing of palatal donor sites due to disturbed blood circulation of palatal tissues. Therefore in this study, blood flow was measured by Laser Speckle Contrast Imaging (LSCI) in seven patients after connective-tissue harvesting. The slope in blood-flow elevation within the first 3 days as well as time needed for maximum reperfusion were calculated. Each surgical site was assessed by clinical examination on day 3. In donor sites with secondary-intention wound healing, postoperative blood flow was elevated with significant delay compared to the surrounding tissues and to the primarily healed wound...
March 2019: International Journal of Periodontics & Restorative Dentistry
Yoshihito Naito, Shuntaro Yamada, Yohei Jinno, Kazuo Arai, Silvia Galli, Tetsuo Ichikawa, Ryo Jimbo
This study investigated the level of magnetic energy around implants possessing a static magnetic field (SMF) and assessed the in vivo influence of SMF on bone regeneration. Implants possessing a sintered neodymium magnet internally were placed in a rabbit femur. An implant without SMF was placed as control. After 12 weeks of healing in vivo, the bone samples were subjected to histologic/histomorphometric evaluation. The bone-to-implant contact for the test group and the control group were 32.4 ± 13.6% and 17...
March 2019: International Journal of Periodontics & Restorative Dentistry
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