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https://www.readbyqxmd.com/read/29045800/survival-and-complications-of-single-dental-implants-in-the-edentulous-mandible-following-immediate-or-delayed-loading-a-randomized-controlled-clinical-trial
#1
M Kern, W Att, E Fritzer, S Kappel, R G Luthardt, T Mundt, D R Reissmann, M Rädel, M Stiesch, S Wolfart, N Passia
It was the aim of this 24-mo randomized controlled clinical trial to investigate whether the survival of a single median implant placed in the edentulous mandible to retain a complete denture is not compromised by immediate loading. Secondary outcomes were differences in prosthetic complications between the loading principles. Each of the 158 patients who received an implant was randomly assigned to the immediate loading group ( n = 81) or the delayed loading group ( n = 77). Recall visits were performed 1 mo after implant placement (for only the delayed loading group) and 1, 4, 12, and 24 mo after implant loading...
October 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/29042738/prosthetic-rehabilitation-of-mandibular-defects-with-fixed-removable-partial-denture-prosthesis-using-precision-attachment-a-twin-case-report
#2
Vimal Kantilal Munot, Ramesh P Nayakar, Raghunath Patil
The restoration of normal function and esthetic appearance with a dental prosthesis is a major challenge in the rehabilitation of patients who have lost their teeth and surrounding bone because of surgery for oral cyst or tumor. Rehabilitation with fixed or removable prosthesis is even more challenging when the edentulous span is long and the ridge is defective. Anatomic deformities and unfavorable biomechanics encountered in the region of resection add to the misery. In such situation, a fixed-removable prosthesis allows favorable biomechanical stress distribution along with restoration of esthetics, phonetics, comfort, hygiene, and better postoperative care and maintenance...
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29039617/the-electrical-properties-and-glass-transition-of-some-dental-materials-after-temperature-exposure
#3
Agnieszka Marcinkowska, Marlena Gauza-Wlodarczyk, Leszek Kubisz, Wieslaw Hedzelek
The physicochemical properties of dental materials will remain stable only when these materials in question are resistant to the changes in the oral cavity. The oral environment is subject to large temperature variations. The aim of the study was the assessment of electrical properties and glass transition of some dental materials after temperature exposure. Composite materials, compomers, materials for temporary prosthetic replacement and resin-based pit and fissure sealants were used in the study. The method used was electric conductivity of materials under changing temperature...
October 17, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29032854/intrasinusal-locking-technique-a-novel-use-of-the-ring-block-technique-at-sinus-perforations-for-simultaneous-implant-placement
#4
A Sindel, M M Özarslan, Ö Özalp
Ten patients who underwent sinus lift surgery with simultaneous implant placement using the intrasinusal locking technique were evaluated retrospectively. All patients were scheduled for sinus floor elevation procedures with simultaneous implant placement. Schneiderian membrane perforation occurred during the lifting procedure, and conventional methods failed to repair the perforation. Therefore, an autogenous bone ring was placed at the base of the maxillary sinus and was locked to the alveolar crest with a dental implant...
October 9, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29030280/mobilization-of-malpositioned-dental-implant-using-segmental-osteotomy-a-case-report
#5
Mahdi Gholami
By increasing the number of replaced tooth with dental implants, the number of poorly positioned implants is also increased. In this article we present our experience about a 48-year-old female who was referred to our department for resolving prosthetic problem regarding two malpositioned implants inserted in the upper jaw. The interocclusal space was insufficient and the two adjacent implants had excessive buccal angulation. To overcome these problems, segmental osteotomy of the alveolar bone containing two implants has been done...
October 10, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29028598/a-particle-swarm-based-algorithm-for-optimization-of-multi-layered-and-graded-dental-ceramics
#6
Ehsan Askari, Paulo Flores, Filipe Silva
The thermal residual stresses (TRSs) generated owing to the cooling down from the processing temperature in layered ceramic systems can lead to crack formation as well as influence the bending stress distribution and the strength of the structure. The purpose of this study is to minimize the thermal residual and bending stresses in dental ceramics to enhance their strength as well as to prevent the structure failure. Analytical parametric models are developed to evaluate thermal residual stresses in zirconia-porcelain multi-layered and graded discs and to simulate the piston-on-ring test...
October 4, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29024303/the-influence-of-crown-to-implant-ratio-on-marginal-bone-levels-around-splinted-short-dental-implants-a-radiological-and-clincial-short-term-analysis
#7
Lukas Hingsammer, Georg Watzek, Bernhard Pommer
BACKGROUND: The amount of marginal bone resorption around dental implants is considered to have a significant impact on implant stability as well as implant survival rates. PURPOSE: The aim of this prospective study was to investigate the influence of prosthetic as well as patient specific factors on marginal bone loss around short dental implants. MATERIALS AND METHODS: Seventy-six implants, which supported splinted crowns were included for investigation...
October 12, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29021982/autologous-periosteum-derived-micrografts-and-plga-ha-enhance-the-bone-formation-in-sinus-lift-augmentation
#8
Ruggero Rodriguez Y Baena, Riccardo D'Aquino, Antonio Graziano, Letizia Trovato, Antonio C Aloise, Gabriele Ceccarelli, Gabriella Cusella, André A Pelegrine, Saturnino M Lupi
Sinus lift augmentation is a procedure required for the placement of a dental implant, whose success can be limited by the quantity or quality of available bone. To this purpose, the first aim of the current study was to evaluate the ability of autologous periosteum-derived micrografts and Poly(lactic-co-glycolic acid) (PLGA) supplemented with hydroxyl apatite (HA) to induce bone augmentation in the sinus lift procedure. Secondly, we compared the micrograft's behavior with respect to biomaterial alone, including Bio-Oss® and PLGA/HA, commercially named Alos...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28981207/medication-related-osteonecrosis-of-the-posterior-maxilla-surgical-treatment-using-a-combined-transnasal-endoscopic-and-intraoral-approach-our-experience-with-seven-consecutive-patients
#9
Pasquale Procacci, Massimo Albanese, Lorenzo Trevisiol, Vittorio Favero, Dario Bertossi, Fabio Lonardi, Antonio D'Agostino, Erminia Manfrin, Pier Francesco Nocini
Upper jaw MRONJ if not correctly treated can lead to serious complication. Upper jaw MRONJ is frequently associated with maxillary sinusitis, the disease can spread to other paranasal sinuses. Combined approach is the most reliable procedure to treat odontogenic sinusitis; although MRONJ associated sinusitis is considered odontogenic there is no report in literature describing combined approach to treat MRONJ-induced sinusitis. Buccal fat pad represents the best reconstructive option to close the bony defect...
October 5, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28965675/oral-health-related-quality-of-life-and-masticatory-function-after-conventional-prosthetic-treatment-a-cohort-follow-up-study
#10
Teresa Palomares, Javier Montero, Eva M Rosel, Ramón Del-Castillo, Juan I Rosales
STATEMENT OF PROBLEM: The impact of conventional prosthetic treatment on both the objective and subjective assessments of mastication as well as on well-being is unclear. PURPOSE: The purpose of this clinical study was to compare the impact on oral health-related quality of life and masticatory function in participants treated with conventional dental prostheses. MATERIAL AND METHODS: A total of 72 patients requiring prosthetic rehabilitation were enrolled by referral from the Faculty of Dentistry at the University of Granada, Spain...
September 28, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28961429/synchronous-reconstruction-of-a-total-mandibulectomy-defect-with-a-single-fibula-osteocutaneous-free-flap
#11
Ramzey Tursun, J Marshall Green, Daniel Winokur, Andre Ledoux
Osteoradionecrosis (ORN) is a well-known and usually late complication of radiation therapy in the treatment of head and neck cancer. Although the therapy can be life extending, it also produces tissue toxicity in ipsilateral and contralateral tissues in an acute and chronic fashion. In the most severe cases of ORN, such as the one presented in this report, bilateral disease results in the need for total mandibulectomy and creates a tremendous reconstructive challenge. The advent of microvascular surgery and free tissue transfer has caused an evolution of the management protocol for severe ORN cases...
September 8, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28948558/matrixins-in-the-salivary-fluid-of-patients-with-tumors-of-the-maxillofacial-region-during-orthopedic-rehabilitation-with-different-prosthetic-structures
#12
E V Kochurova, V N Nikolenko
Dental and immunological features of the influence of various prosthetic structures of orthopedic prostheses on tissues and organs of the maxillofacial region were evaluated by the parameters of expression of oral fluid biomarkers. Healthy people without tumor and somatic diseases and patients with neoplasms of maxillofacial area in need of dental rehabilitation were examined before and in 2 weeks and 3 months after treatment. Certain regularities in the reaction of biomarkers to orthopedic prostheses were observed: a decrease in activity of MMP-2 and MMP-8 and their inhibitors or an increase in MMP-9; an increase in activity of biomarkers at early terms and a decrease in delayed terms after prosthetics...
September 26, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28947694/-oral-cancer-diagnosis-and-therapy
#13
Takahiko Shibahara
Oral cancer is a malignant neoplasm that occurs in the oral cavity. Squamous cell carcinoma accounts for over 90%of the oral cancers, and others include adenocarcinoma derived from minor salivary gland, sarcoma, malignant lymphoma and metastatic cancer. The number of oral cancer patients in Japan is about 3-times higher than the current number. Age-adjusted male-to-female ratio is 3:2, which is higher in males than in females. Of oral cancers, tongue carcinomas accounts is the most common and accounts for 40%of oral cancers...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28947691/-oral-management-for-perioperative-patients
#14
Kyohei Yoshikawa, Hiromitsu Kishimoto
During perioperative period, several oral-related complications happen to occur, including not only postoperative pneumonia and surgical site infection, but also damage to teeth. Furthermore, in case of surgeries where the materials such as prosthetic valves and artificial joints are installed inside the body, there is a potential risk of developing foreign material infections due to bacteremia from the oral cavity as the periodontitis remains there. There is a possibility that a necessary treatment during perioperative period is not performed with only the oral cleaning which is narrowly defined as oral care, without an assessment of potential problems for oral...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28944371/prosthetic-protocols-in-implant-based-oral-rehabilitations-a-systematic-review-on-the-clinical-outcome-of-monolithic-all-ceramic-single-and-multi-unit-prostheses
#15
Frank A Spitznagel, Sebastian D Horvath, Petra C Gierthmuehlen
AIM: The purpose of this systematic review was to assess the clinical performance of implant-supported monolithic all-ceramic single- and multi-unit restorations. MATERIALS AND METHODS: The electronic databases of MEDLINE via PubMed, the Cochrane Library (CENTRAL) and EMBASE were searched for clinical studies on monolithic all-ceramic single and multi-unit implant-supported fixed dental prostheses. Human studies with a mean follow-up of at least 2 years and published in English or German language peer-reviewed journals up until August 2016 were included...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28944368/impact-of-prosthetic-material-on-mid-and-long-term-outcome-of-dental-implants-supporting-single-crowns-and-fixed-partial-dentures-a-systematic-review-and-meta-analysis
#16
Samir Abou-Ayash, Malin Strasding, Gerta Rücker, Wael Att
AIM: The impact of prosthetic material selection on implant survival is not clear. The current criteria for choosing a prosthetic material seem to be based on clinician preferences. This systematic review aims to evaluate the impact of restorative materials on the mid- and long-term survival of implants supporting single crowns and fixed partial dentures. MATERIALS AND METHODS: Hand and MEDLINE searches were performed to identify relevant literature for single crowns (SC) and fixed partial dentures (FPD)...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28944358/ceramic-vs-composite-veneering-of-full-arch-implant-supported-zirconium-frameworks-assessing-patient-preference-and-satisfaction-a-crossover-double-blind-randomised-controlled-trial
#17
Mauro Merli, Eugenio Bianchini, Giorgia Mariotti, Marco Moscatelli, Matteo Piemontese, Giorgio Rappelli, Michele Nieri
PURPOSE: The objectives of this two-period, crossover, mono-centred, double-blind, randomised controlled trial (RCT) were to compare two different materials used for full arch implant-supported prosthetic restorations with regard to patient preference and impact on a patient's quality of life. MATERIALS AND METHODS: Edentulous patients requesting one full arch restoration in the mandible or maxilla supported by dental implants were included in this study. Patients were randomised to receive either a full arch zirconia framework hand-veneered with ceramic, or a full arch zirconia framework hand-veneered with composite material...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28944356/two-or-three-machined-vs-roughened-surface-dental-implants-loaded-immediately-supporting-total-fixed-prostheses-1-year-results-from-a-randomised-controlled-trial
#18
Gioacchino Cannizzaro, Giorgio Gastaldi, Enrico Gherlone, Raffaele Vinci, Ignazio Loi, Anna Trullenque-Eriksson, Marco Esposito
PURPOSE: To compare implants with machined vs roughened surfaces placed flapless in totally edentulous jaws and immediately restored with metal-resin screw-retained cross-arch prostheses. Mandibles were rehabilitated with two implants (Fixed-on-2 or Fo2) and maxillae with three implants (Fixed-on-3 or Fo3). MATERIALS AND METHODS: Forty edentulous or to be rendered edentulous patients (20 in the mandible and 20 in the maxilla) were randomised to the machined group (20 patients: 10 mandibles and 10 maxillae) and to the roughened group (20 patients: 10 mandibles and 10 maxillae) according to a parallel group design...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28940708/clinical-and-patient-reported-outcomes-of-zirconia-based-implant-fixed-dental-prostheses-results-of-a-prospective-case-series-5%C3%A2-years-after-implant-placement
#19
Benedikt Christopher Spies, Siegbert Witkowski, Kirstin Vach, Ralf-Joachim Kohal
OBJECTIVE: To evaluate the clinical and patient-reported outcome of all-ceramic zirconia implant supported fixed dental prostheses (FDPs) 5 years after implant installation. MATERIALS AND METHODS: Thirteen patients were treated with two terminally placed one-piece zirconia implants for a three-unit FDP each. The FDPs consisted of a CAD/CAM-fabricated zirconia framework over-pressed with a fluor-apatite veneering ceramic and were adhesively cemented. Survival and success were assessed by applying modified US Public Health Service (USPHS) criteria and preparation of Kaplan-Meier (KM) plots...
September 21, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28939484/all-ceramic-bi-layered-crowns-supported-by-zirconia-implants-three-year-results-of-a-prospective-multicenter-study
#20
Benedikt C Spies, Marc Balmer, Ronald E Jung, Irena Sailer, Kirstin Vach, Ralf-Joachim Kohal
OBJECTIVES: To determine the clinical and patient-reported outcomes of bi-layered, all-ceramic posterior single crowns (SCs) supported by zirconia implants in an uncontrolled, prospective, multicenter study. METHODS: In two centers, 60 patients received 71 one-piece zirconia oral implants to be restored with either SCs (n=49) or three-unit fixed dental prostheses (n=11). Of these patients, 45 implants were restored with all-ceramic, zirconia-based posterior SCs (one per patient)...
September 20, 2017: Journal of Dentistry
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