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International Journal of Periodontics & Restorative Dentistry

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https://www.readbyqxmd.com/read/29677228/decontamination-of-customized-laser-microtextured-titanium-abutments-a-comparative-in-vitro-study-of-different-cleaning-procedures
#1
Davide Farronato, Davide Fumagalli, Farah Asa'ad, Giulio Rasperini
The aim of this study was to evaluate different cleaning procedures for customized laser-microtextured titanium abutments. A total of 20 customized laser-microtextured abutments were randomized into four groups: no cleaning (control group), ultrasonic treatments + autoclave cycle (group 1), ultrasonic treatments + argon plasma (group 2), and only argon plasma (group 3). Surface contaminants were assessed through scanning electron microscopy and energy-dispersive x-ray spectroscopy microanalysis. In the control group, 99...
April 20, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29677227/impact-of-soft-tissue-grafts-to-reduce-peri-implant-alterations-after-immediate-implant-placement-and-provisionalization-in-compromised-sockets
#2
Fausto Frizzera, Rubens Moreno de Freitas, Oscar Fernando Muñoz-Chávez, Guilherme Cabral, Jamil Awad Shibli, Elcio Marcantonio
This study evaluated the impact of soft tissue grafts to reduce marginal peri-implant recession (MPR) after 1 year of follow-up. A total of 24 patients with one single failing maxillary incisor presenting facial bone dehiscence and receiving an immediate implant, bone graft, and provisional were randomly divided into three groups (n = 8 in each group): control (CTL), collagen matrix (CM), and connective tissue graft (CTG). Clinical, photographic, and tomographic analyses were performed to evaluate tissue alterations...
April 20, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29677226/clinical-outcomes-of-bicortical-engagement-implants-in-atrophic-posterior-maxillae-a-retrospective-study-with-1-to-5-years-follow-up
#3
Piklam Ng, Xiucheng Hu, Shuangquan Wan, Hui Mo, Feilong Deng
Bicortical dental implantation technique was regarded as an alternative to internal sinus lift technique with bone grafting in dental implantation in atrophic maxillae. The purpose of this retrospective study was to evaluate the survival rates and bone stability of 6- and 10-mm implants in the posterior maxilla using bicortical dental implantation techniques after 1 to 5 years of prosthetic loading. A total of 53 patients received posterior maxillary implant treatments. Of these, 31 patients received bicortical dental implantation (group A), and 25 patients received traditional implantation (group B)...
April 20, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29677225/occlusive-titanium-barrier-for-immediate-bone-augmentation-of-severely-resorbed-alveolar-sockets-with-secondary-soft-tissue-healing-a-2-year-case-series
#4
Fabio Perret, Federica Romano, Francesco Ferrarotti, Mario Aimetti
This case series evaluated bone dimensional changes following the application of an occlusive titanium barrier on severely resorbed fresh extraction sockets to achieve bone regeneration. Six extraction sites with buccal bone loss were filled with a xenograft and covered with a titanium plate fixed by two miniscrews and left intentionally exposed. No infection occurred. After 4 months of healing, sufficient hard tissue had formed to allow implant insertion. Mean vertical bone gain was 7.3 ± 2.2 mm at the buccal side and 4...
April 20, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29677224/dental-shade-guide-variability-for-hues-b-c-and-d-using-cross-polarized-photography
#5
Camila S Sampaio, Jon Gurrea, Marta Gurrea, August Bruguera, Pablo J Atria, Malvin Janal, Estevam A Bonfante, Paulo G Coelho, Ronaldo Hirata
This study evaluated the color variability of hues B, C, and D between the VITA Classical shade guide (Vita Zahnfabrik) and four other VITA-coded ceramic shade guides using a digital camera (Canon EOS 60D) and computer software (Adobe Photoshop CC). A cross-polarizing filter was used to standardize external light sources influencing color match. A total of 275 pictures were taken, 5 per shade tab, for 11 shades (B1, B2, B3, B4, C1, C2, C3, C4, D2, D3, and D4), from the following shade guides: VITA Classical (control); IPS e...
April 20, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29677223/a-4-year-retrospective-radiographic-study-of-marginal-bone-loss-of-156-titanium-implants-placed-with-ultrasonic-site-preparation
#6
Gianmario Schierano, Tomaso Vercellotti, Fabio Modica, Giorgia Corrias, Crescenzo Russo, Davide Cavagnetto, Domenico Baldi, Federica Romano, Stefano Carosa
This retrospective study evaluated implant survival rate (SR) and marginal bone loss around dental implants placed with ultrasonic implant site preparation. A total of 156 implants were placed in 28 totally and partially edentulous patients. Bone loss was measured on intraoral paralleling digital radiographs taken at the impression phase and after 4 years of loading. As 3 implants (1.92%) failed at the second surgery stage, the SR was 98.08% after 4 years. The mean marginal bone loss was 0.52 ± 0.33 mm (0...
April 20, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29590226/spontaneous-correction-of-accentuated-retraction-of-maxillary-central-incisors-after-autogenous-graft-in-midline-mesialization-and-lingual-torque-of-incisor-roots
#7
Matheus Melo Pithon
In the present clinical case, the authors report the orthodontic treatment of an adult patient with Class II malocclusion with periodontal disease and extensive bone destruction in the anterior region of the median palatine suture. Before orthodontic treatment, the patient presented precarious oral health. The treatment proposed for the case was insertion of an autogenous graft and subsequent orthodontic movement of the teeth to the area of the graft. The results obtained were correction of the malocclusion with significant improvement in gingival retraction and smile esthetics...
March 28, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29590225/periodontal-regenerative-treatment-of-intrabony-defects-in-the-esthetic-zone-using-modified-vestibular-incision-subperiosteal-tunnel-access-m-vista
#8
Babak Najafi, Parisa Kheirieh, Alireza Torabi, Emil G Cappetta
Periodontal regenerative treatment of intrabony defects in the esthetic zone often poses a significant challenge to clinicians. Various materials and techniques have been proposed to achieve periodontal regeneration. This article presents modified vestibular incision subperiosteal tunnel access (M-VISTA) for treatment of intrabony defects in the esthetic zone. Two cases were treated using the proposed approach with enamel matrix derivatives and demineralized freeze-dried bone allograft to optimize the regenerative outcomes without affecting the soft tissue profile in the esthetic zone...
March 28, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29590224/effect-of-biologic-aging-of-implants-on-osseointegration-in-the-dog
#9
Byung-Moon Hwang, Yong Bum Park, Jae Hoon Lee
The objective of this preclinical study was to investigate the effect of biologic aging of implants on osseointegration in the canine. According to multiple comparisons, there was a significant difference in bone-to-implant contact (BIC) between control implants placed 6 months after manufacture and 2-week-old implants (P = .016), and between control and newly prepared implants with acid-etching (P = .019). However, there was no significant difference in BIC between newly prepared implants with acid-etching and 2-week-old implants...
March 28, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29590223/clinical-guidelines-for-implant-treatment-in-patients-with-down-syndrome
#10
Hugo De Bruyn, Maarten Glibert, Liesbet Matthijs, Martens Filip, Véronique Christiaens, Luc Marks
This study evaluated implant outcome in patients with Down syndrome (DSPs) and provides clinical guidelines to maximize treatment outcome. A total of 57 implants were placed in eight DSPs. During follow-up, implant survival was recorded and crestal bone level was evaluated when possible. After a mean follow-up time of 5 years, six patients with 45 implants were evaluated and an implant survival rate of 84.4% was recorded. A mean crestal bone loss of 1.7 mm (SD 0.9) was measured in three patients around 20 implants...
March 28, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29590222/immediate-implant-placement-in-single-tooth-molar-extraction-sockets-a-1-to-6-year-retrospective-clinical-study
#11
Francesco Amato, Giorgio Polara
The aim of this study was to investigate the survival rate of implants immediately placed in fresh extraction sockets of molars in the maxilla and mandible with a single-stage procedure. A total of 102 patients were treated, and 107 implants (53 in the maxilla and 54 in the mandible) were placed in a fresh molar extraction socket and connected to a healing abutment. After a mean follow-up of 3 years (range: 1 to 6 years) 1 implant failed, for a cumulative success rate of 99.06% (98.11% for the mandible and 100% for the maxilla)...
March 28, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29534117/a-three-stage-split-crest-technique-case-series-of-horizontal-ridge-augmentation-in-the-atrophic-posterior-mandible
#12
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
https://www.readbyqxmd.com/read/29513778/four-stable-and-functioning-dental-implants-retrieved-for-fracture-after-14-and-17-years-from-the-same-patient-a-histologic-and-histomorphometric-report
#13
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
https://www.readbyqxmd.com/read/29513777/influence-of-polishing-system-on-the-surface-roughness-of-flowable-and-regular-viscosity-bulk-fill-composites
#14
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
https://www.readbyqxmd.com/read/29513776/tissue-remodeling-in-immediate-versus-delayed-prosthetic-restoration-in-fresh-socket-implants-in-the-esthetic-zone-four-year-follow-up
#15
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
https://www.readbyqxmd.com/read/29513775/osseoincorporation-of-porous-tantalum-trabecular-structured-metal-a-histologic-and-histomorphometric-study-in-humans
#16
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
https://www.readbyqxmd.com/read/29513774/effectiveness-of-enamel-matrix-derivative-in-conjunction-with-particulate-autologous-bone-in-the-treatment-of-noncontained-intrabony-defects-a-2-year-prospective-case-series
#17
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
https://www.readbyqxmd.com/read/29513773/guided-bone-regeneration-in-the-treatment-of-a-lateral-periodontal-cyst-2-year-clinical-and-radiologic-follow-up
#18
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
https://www.readbyqxmd.com/read/29513772/histologic-and-radiographic-analysis-of-nonhealing-extraction-sockets-treated-with-bio-oss-collagen-after-a-4-month-healing-period-a-prospective-descriptive-study-in-humans
#19
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
https://www.readbyqxmd.com/read/29513771/lip-repositioning-with-vestibular-shallowing-technique-for-treatment-of-excessive-gingival-display-with-various-etiologies
#20
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
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