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International Journal of Periodontics & Restorative Dentistry

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https://www.readbyqxmd.com/read/29897356/color-differences-between-pink-veneering-ceramics-and-the-human-gingiva
#1
Nicola Alberto Valente, Irena Sailer, Vincent Fehmer, Daniel Stefan Thoma
The aim of this study was to examine 10 different shades of pink ceramic to determine which one best matches the mean color of human gingiva. Bar-shaped zirconia samples were fabricated and veneered with 1 of 10 pink zirconia veneering ceramics. The color of the gingiva at the central maxillary incisors of 20 healthy volunteers was compared to the pink veneering ceramics using a spectrophotometer (Spectroshade, MHT). The obtained color parameters L*, a*, and b* (CIELAB) of the gingiva and the ceramics were used to calculate the color difference (ΔE)...
June 12, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29897355/histologic-evaluation-of-soft-and-hard-tissue-healing-following-alveolar-ridge-preservation-with-deproteinized-bovine-bone-mineral-covered-with-xenogenic-collagen-matrix
#2
Luca Ramaglia, Raffaele Saviano, Giovanni Matarese, Francesco Cassandro, Ray C Williams, Gaetano Isola
The purpose of this study was to histologically evaluate new bone formation and dimensional soft tissue changes of two different healing protocols (16 weeks and 32 weeks) using deproteinized bovine bone mineral (DBBM) covered with collagen matrix (CM) for alveolar ridge preservation in the anterior esthetic zone prior to dental implant placement. Compared to baseline, both treatments yielded statistically significant differences in several clinical parameters and in the microarchitecture of the native bone and in the newly formed bone in the augmented sites...
June 12, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29897354/a-histologic-and-histomorphometric-retrospective-analysis-of-the-outcomes-of-ridge-preservation-using-anorganic-bovine-bone-minerals-and-a-nonresorbable-membrane
#3
Seiko Min, Marcelo Freire, Neema Bakshallian, Ivy Wu, Homayoun H Zadeh
The objective of this study was to examine wound healing in extraction sockets following ridge preservation and the outcome of implants placed in those sites. Extraction sockets (N = 31) were grafted with anorganic bovine bone mineral (ABBM) and covered with dense polytetrafluoroethylene membrane. Bone cores obtained during implant placement were examined histologically and histomorphometrically. Percentages of vital bone and residual graft were 37.5% ± 21.3% and 12.5% ± 8.9%, respectively. New vital bone showed a negative correlation with patient age...
June 12, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29897353/complications-and-management-of-implants-migrated-into-the-maxillary-sinus
#4
Yifat Manor, Yakir Anavi, Ron Gershonovitch, Adi Lorean, Eithan Mijiritsky
The article describes complications following dental implant dislocation into the maxillary sinus and their management and attempts to elucidate the reasons for these complications and their prevention. This retrospective study presents 55 cases of dental implant migration into the maxillary sinus. Patients were 30 men and 25 women with average age of 58 years. Oroantral communication was found in 46 cases, primarily in cases without prior bone augmentation, in patients aged older than 60 years (mean), and medically compromised patients (ASA > 1)...
June 12, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29897352/esthetic-evaluation-of-maxillary-single-tooth-zirconia-implants-in-the-esthetic-zone
#5
Kristian Kniha, Heinz Kniha, Ingrid Grunert, Daniel Edelhoff, Frank Hölzle, Ali Modabber
The purpose of this study was to evaluate ceramic dental implants using different esthetic scores. A total of 53 ceramic dental implants were evaluated using the Pink Esthetic Score (PES), White Esthetic Score (WES), and Peri-Implant and Crown Index (PICI). Prosthodontists, orthodontists, oral surgeons, and dentistry students independently performed assessments. The mean value of combined PES + WES was 17.4 points, and the PICI was 523.2 points. Orthodontists assessed a significantly lower result in both indices compared to all other assessor groups (P ≤ ...
June 12, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29897351/midfacial-tissue-assessment-of-the-effect-of-amount-of-keratinized-mucosa-on-immediate-temporarization-of-fresh-socket-implants-8-year-follow-up
#6
Roberto Crespi, Paolo Capparé, Giovanni Crespi, Giorgio Gastaldi, Georgios E Romanos, Enrico Gherlone
The aim of the present study was to consider the long-term midfacial mucosal outcome around final prosthetic restorations on dental implants placed and loaded immediately after tooth extractions. A total of 42 patients requiring tooth extractions were recruited, and 142 teeth were extracted. Based on the amount of keratinized mucosa (KM), implants were categorized into group A (KM ≥ 2 mm; n = 61) or group B (KM < 2 mm; n = 62). In both groups, all patients received temporary prosthetic restorations immediately after the surgical procedure...
June 12, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29897350/human-autopsy-study-of-peri-implant-dehiscence-defects-with-guided-bone-regeneration-a-case-report
#7
Jae-Kook Cha, Mariano Sanz, Ui-Won Jung
This report presents a histologic assessment of guided bone regeneration for dehiscence defects treated with bovine bone mineral or a combination of autogenous and synthetic bone. The samples were obtained from an autopsy specimen donated by a patient, which is a rare opportunity to evaluate long-term results of guided bone regeneration and osseointegration. The values for bone-to-implant contact were similar in both sites. The augmentation with bovine bone mineral demonstrated bone reconstruction after 1 year, whereas the augmentation with autogenous and synthetic bone failed to maintain the augmented volume, eventually leading to mucosal recession after 5...
June 12, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29940049/notice-of-retraction
#8
(no author information available yet)
The article "Three-Dimensional Bone Augmentation and Immediate Implant Placement via Transcrestal Sinus Lift: 8-Year Clinical Outcomes," by Rizzo et al, which was published in the May/June issue (Int J Periodontics Restorative Dent 2018;38:423-429. doi 10.11607/prd.476) has been retracted by the publisher. The article was published in error.
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889923/maxillary-sinus-membrane-elevation-using-a-special-drilling-system-and-hydraulic-pressure-a-2-year-prospective-cohort-study
#9
Fulvio Gatti, Claudio Gatti, Marco Tallarico, Grazia Tommasato, Silvio Mario Meloni, Matteo Chiapasco
The purpose of this study was to evaluate clinical and radiologic outcomes using a newly developed device for maxillary sinus membrane elevation. Patients with a residual bone height of at least 3 mm were enrolled. Crestal sinus lift elevation and sinus graft were performed using the crestal approach sinus (CAS) kit. Graft was avoided if the residual bone crest was ≤ 2 mm less than the length of the planned implant. Outcome measures were implant and prosthesis failure, any biologic or technical complications, and marginal bone loss (MBL)...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889922/reosseointegration-after-regenerative-surgical-therapy-using-a-synthetic-bone-substitute-for-peri-implantitis-human-autopsy-study
#10
Sungtae Kim, Kyung-Seok Hu, Ui-Won Jung
Bone regeneration and reosseointegration around a dental implant were radiographically and histologically analyzed after regenerative treatment for peri-implantitis, using a case from a human autopsy. A block specimen including the tissue around the implants was obtained from the patient, who died from cancer 20 months after regenerative surgery using a synthetic bone substitute to treat peri-implantitis. Microcomputed tomographic and histologic analyses were performed. Three-wall intrabony defects at the implant placed at the site of the mandibular left first molar and a circumferential defect at the implant at the site of the mandibular left second molar were substantially filled with newly formed bone and residual bone substitute particles, and reosseointegration on the previously exposed implant surface was histologically observed...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889921/novel-collagen-matrix-to-increase-tissue-thickness-simultaneous-with-guided-bone-regeneration-and-implant-placement-in-esthetic-implant-sites-a-feasibility-study
#11
Vivianne Chappuis, Kamal Shahim, Ramona Buser, Edi Koller, Tim Joda, Mauricio Reyes, Daniel Buser
The purpose of this case series was to assess safety and feasibility of a novel resorbable collagen matrix (CMX) to enhance tissue thickness simultaneous with implant placement and guided bone regeneration (GBR) in esthetic sites over an 8-week healing period. Soft tissue thickness at implant sites and adjacent teeth was monitored with an ultrasonic device. Overall tissue contour changes were assessed by sequential digital surface model superimpositions. Periodontal parameters and patient-related outcomes revealed no significant changes...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889920/dimensional-evaluation-of-different-ridge-preservation-techniques-with-a-bovine-xenograft-a-randomized-controlled-clinical-trial
#12
Kai R Fischer, Sven Mühlemann, Ronald E Jung, Anton Friedmann, Stefan Fickl
The objectives of this study were to determine the quantitative changes after different ridge preservation techniques (primary aim) and to assess the possibility of placing a dental implant, the bone quality, and the need for bone augmentation (secondary aim). A total of 35 patients who required extraction of at least one tooth (incisor, canine, or premolar) provided 35 single-gap extraction sites. After minimally invasive tooth removal, the sockets were randomly scheduled for one of four treatment modalities: placement of a deproteinized bovine bone mineral (DBBM; Endobon, Biomet 3i) covered with a soft tissue punch from the palate (T1); placement of DBBM alone (T2); placement of DBBM covered with a resorbable collagen membrane (OsseoGuard, Biomet 3i) (T3); or no additional treatment (T4)...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889919/changes-in-ridge-dimension-with-pontics-immediately-placed-at-extraction-sites-a-pilot-study
#13
Monjir Bakshi, Dennis Tarnow, Nurit Bittner
The aim of this prospective clinical study was to evaluate dimensional changes following immediate placement of a fixed ovate pontic provisional restoration into an intact extraction socket without grafting. The mean buccolingual dimensional change at 1 month was 0.51 ± 0.48 mm and 0.93 ± 0.55 mm at 3 months. The mean incisoapical dimensional change at 1 month was 0.68 mm ± 0.19 mm, and at 3 months, 1.64 ± 1.35 mm. The dental literature reports dimensional change of 3 to 5 mm in width and 1 to 4 mm in height for ridges with no treatment following extraction...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889918/retrospective-analysis-of-long-term-up-to-12-years-clinical-and-radiologic-performance-of-anodized-surface-implants
#14
Giuseppe Luongo, Antonio Cipressa, Fabrizia Luongo
To accurately assess the long-term performance of anodized-surface implants, more data monitoring is needed outside of clinical evaluations. This retrospective study evaluated long-term implant survival and bone remodeling after up to 12 years of function. Data from 195 implants placed in 60 patients over a follow-up period ranging from 0.6 to 12.1 years were included. The implant-level survival rate was 99.0%. Marginal bone loss remained low across all follow-up cohorts. The data show that anodized-surface implants are a safe, reliable option with high implant survival rates and low levels of bone loss...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889917/comparison-of-gingival-troughing-by-laser-and-retraction-cord
#15
Xian Tao, Jiang-Wu Yao, Hom-Lay Wang, Cui Huang
This study was aimed at comparing the most common two methods for gingival troughing: presaturated cord and lasers (including diode, Nd:YAG, and Er:YAG). A total of 108 anterior teeth (58 maxillary and 50 mandibular) in 50 patients were included in this study. Gingival treatment was carried out in the following four groups: presaturated cord, diode laser, Nd:YAG laser, and Er:YAG laser. The gingival width and gingival recession (GR) were measured at different times (at the time of treatment, after 1 week, and after 4 weeks)...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889916/clinical-performance-of-cad-cam-tooth-supported-ceramic-restorations-a-systematic-review
#16
Inês Filipa Alves de Carvalho, Tiago Miguel Santos Marques, Filipe Miguel Araújo, Luís Filipe Azevedo, Helena Donato, André Correia
Owing to an increased demand for safe and esthetically pleasing dental materials, ceramics have been developed and optimized to rehabilitate anterior and posterior teeth. This evolution in ceramic materials is directly related to the development of sophisticated processing technologies and systems for use in dental medicine, particularly computer-aided design/computer-assisted manufacture (CAD/CAM) technology. This study is a systematic review outlining long-term clinical survival rates of single-tooth restorations fabricated with CAD/CAM technology with a minimum follow-up of 3 years...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889915/regenerative-periodontal-treatment-with-the-single-flap-approach-in-smokers-and-nonsmokers
#17
Leonardo Trombelli, Roberto Farina, Luigi Minenna, Luca Toselli, Anna Simonelli
The present study was performed to evaluate the impact of smoking status on 6-month clinical outcomes of a regenerative procedure based on enamel matrix derivative and deproteinized bovine bone mineral in the treatment of intraosseous defects accessed with buccal single flap approach. A total of 22 defects were selected in smoking (n = 11) and nonsmoking (n = 11) patients. Regenerative treatment resulted in similar clinical attachment level (CAL) gain in both smokers and nonsmokers. A trend toward lower 6-month CAL gain and probing depth reduction was observed in patients smoking 11 to 20 cigarettes per day compared to those smoking 1 to 10 cigarettes per day...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889914/flapless-postextraction-socket-implant-placement-part-3-the-effects-of-bone-grafting-and-provisional-restoration-on-soft-tissue-color-change-a-retrospective-pilot-study
#18
Stephen J Chu, Hanae Saito, Maurice A Salama, David A Garber, Henry Salama, Guido O Sarnachiaro, Mark A Reynolds, Dennis P Tarnow
This article presents the results of a soft tissue color study on flapless immediate implant therapy from a sample of 23 patients who received either a provisional restoration alone or with bone grafting. The gingival color in clinical photographs was measured for the implant and for the contralateral tooth site at 2.0 and 5.0 mm below the free gingival margin using Photoshop software (Lightroom CC, Adobe). The average color difference (ΔE) values for the two groups were 2.6 and 2.4 at 2.0 mm and 1.9 and 2...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889913/releasing-incisions-using-upward-motion-scissors-technique-for-flap-mobilization-for-guided-bone-regeneration-or-periodontal-surgery-technical-introduction-and-a-case-report
#19
Mitsuharu Inoko, Satoko Rubin, Yoshihiro Ono, Atsushi Saito
Flap management is one of the key elements for success in periodontal surgeries and bone regeneration for dental implants. The aim of this article is to introduce a releasing incision method for effective flap advancement to obtain tension-free primary closure. The 'upward-motion scissors technique' (UMST) involves the use of surgical scissors handled with an upward motion to create multiple shallow incisions. The use of UMST is demonstrated in an anatomically challenging case requiring bone augmentation. This technique provides a novel approach for flap advancement and may reduce potential complications involved in releasing incisions...
July 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29889912/a-13-to-32-year-retrospective-study-of-bone-stability-for-machined-dental-implants
#20
Massimo Simion, Myron Nevins, Giulio Rasperini, Francesco Tironi
The goal of this retrospective investigation was to provide evidence of the longevity of machine-surfaced implants placed in native bone and treated with the original two-stage surgical protocol. The observation times of this study covered periods of 13 to 32 years. Consecutive cases were impossible; the patients' ages when treated reduced the number of available people as a result of death, relocation, being impossible to find, or refusal to cooperate. Mean marginal bone loss after 13 to 32 years was 1.9 ± 0...
July 2018: International Journal of Periodontics & Restorative Dentistry
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