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https://www.readbyqxmd.com/read/28425209/identification-of-dynamic-load-for-prosthetic-structures
#1
Dequan Zhang, Xu Han, Zhongpu Zhang, Jie Liu, Chao Jiang, Nobuhiro Yoda, Xianghua Meng, Qing Li
Dynamic load exists in numerous biomechanical systems and its identification signifies a critical issue for characterizing dynamic behaviors and studying biomechanical consequence of the systems. This study aims to identify dynamic load in the dental prosthetic structures, namely three-unit implant-supported fixed partial denture (I-FPD) and teeth-supported fixed partial denture (T-FPD). The three-dimensional (3D) finite element (FE) models were constructed through patient's computerized tomography (CT) images...
April 20, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28421148/multidisciplinary-approach-in-the-management-of-a-complex-case-implant-prosthetic-rehabilitation-of-a-periodontal-smoking-patient-with-partial-edentulism-malocclusion-and-aesthetic-diseases
#2
Alessandro Lanza, Fabrizio Di Francesco, Gennaro De Marco, Fabio Scognamiglio, Valeria Aruta, Angelo Itro
Complex periprosthetic cases are considered as challenges by clinicians. Clinical and radiographic parameters should be considered separately to make the right choice between an endodontically or periodontally compromised treated tooth and implant. Therefore, in order to decide whether the tooth is safe or not, data that have to be collected are specific parameters of both the patient and the clinician. In addition, the presence of periodontal, prosthetic, and orthodontic diseases requires patients to be set in multidisciplinary approach...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28410949/-pigmentations-of-the-oral-cavity
#3
Jean-Christophe Fricain, Vincent Sibaud
Buccal mucosa color is explained by hemoglobin in the vessels and melanin in the epithelium. Abnormal presence of melanin pigments (hypermelaninosis, hypermelanocytosis), hematic pigments (hemoglobin, hemosiderin, iron) but also some exogenous circonstancies explain pigmented lesions (figure 1). These lesions could be localized (single lesions), multifocal (multiple lesions) or diffused. In case of a localized pigmentation with melanic appearance, melanoma must be systematically eliminated with a biopsy. In the case of a more diffused lesion, systemic disease must be evoked...
April 12, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28392948/advanced-implant-prosthetic-rehabilitation-how-to-obtain-a-correct-restoration-of-both-functions-and-aesthetics-in-patients-with-complex-combined-dental-and-maxillofacial-trauma-a-case-report-and-topical-review-of-the-literature
#4
M M Figliuzzi, A Giudice, L Fortunato
Aim. This study aims to explain the main steps that characterize the implant-prosthetic rehabilitation in complex combined dental and maxillofacial trauma. Material and Methods. A 20-year-old patient reported an extensive facial trauma which also involved the alveolar process of the maxillary bone. The patient reported a maxillofacial fracture and the loss of teeth 1.3, 1.2, 1.1, and 2.1. A "Le Fort" type 2 fracture was also reported, with the malar bone involvement. After reduction and containment of bone fractures, through appropriate mounting plates, appropriate functional and aesthetic rehabilitation of the patient were replaced thanks to a temporary removable prosthesis...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28390758/alternative-distraction-osteogenesis-technique-after-implant-placement-for-alveolar-ridge-augmentation-of-the-maxilla
#5
Renato Luiz Maia Nogueira, Rafael Lima Verde Osterne, Ricardo Teixeira Abreu, Phelype Maia Araújo
An alternative technique to reconstruct atrophic alveolar vertical bone after implant placement is presented. The technique consists of distraction osteogenesis or direct surgical repositioning of an implant-and-bone block segment after segmental osteotomies that can be used in esthetic or unesthetic cases. Initially, casts indicating the implant position are obtained and the future ideal prosthetic position is determined to guide the model surgery. After the model surgery, a new provisional prosthesis is fabricated, and an occlusal splint, which is used as a surgical guide and a device for distraction osteogenesis, is custom fabricated...
March 18, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28387610/the-influence-of-apico-coronal-implant-placement-on-post-surgical-crestal-bone-loss-in-humans
#6
Carlo Ercoli, Georges Jammal, Madeline Buyers, Alexandra Athanasiou Tsigarida, Konstantinos Michail Chochlidakis, Changyong Feng, Jack Caton
BACKGROUND: Contradictory results exist regarding the influence of apicocoronal implant placement on crestal bone levels. METHODS: Complete charts of patients ≥18 y.o. with dental implant/s were included. Demographic, medical, surgical and prosthetic information was recorded. Implant Bone levels were evaluated at initial placement, implant uncovery, prosthetic delivery and 3-6, 7-11, and 12-18 months post-implant placement. RESULTS: 55 patients'charts and 134 implants were included...
April 7, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28385439/functionalized-pink-al2o3-mn-pigments-applied-in-prosthetic-dentistry
#7
Mário Thadeo R Cruzeiro, Fernando A Moraes, Marina R Kaizer, Mário Lúcio Moreira, Yu Zhang, Rafael R Moraes, Sergio S Cava
STATEMENT OF PROBLEM: The color of dental poly(methyl methacrylate) (PMMA) is conventionally rendered by organic and inorganic pigments, which are usually not bonded to the polymer network. Functionalized ceramic pigments can be used to color PMMA, allowing improved chemical interaction with the resin matrix. PURPOSE: The purpose of this in vitro study was to synthesize, functionalize, and characterize pink manganese-doped alumina ceramic pigments. The hypothesis tested was that functionalized ceramic pigments would render pink coloration to a translucent PMMA without jeopardizing its mechanical properties...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28383117/an-alternative-prosthetic-approach-for-rehabilitation-of-two-edentulous-maxillectomy-patients-clinical-report
#8
Murat Yenisey, Şafak Külünk, Necati Kaleli
Obturator prosthesis is a common treatment method for maxillectomy patients for maintaining their oronasal separation and resuming their social lives. After tumor resection, the remaining anatomical structures have a significant effect on prosthesis retention. The present study describes the rehabilitation of two maxillectomy patients after cancer surgery using a prosthesis consisting of a denture and a special retentive obturator that is positioned in the anatomical undercuts of the nasal cavity. These patients have undergone total and subtotal maxillectomy surgery after the diagnosis of squamous cell carcinoma...
April 6, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28381733/tooth-auto-transplantation-an-alternative-treatment
#9
Jawaad Ahmed Asif, Tahir Yusuf Noorani, Mohammad Khursheed Alam
Auto-transplantation is the repositioning of an autogenously erupted, partially erupted, or unerupted tooth from one site to another in the same individual. The purpose of this case report is to describe the auto-transplantation of the mandibular third molars as an alternative means of replacing second molars requiring extraction. An orthopantomogram revealed horizontal impaction of teeth #37 and 47 and mesio-angular impaction of teeth #38 and 48. Cone beam computed tomography revealed that the roots of #37 and 47 were in close proximity to the inferior alveolar canal bilaterally...
2017: Bulletin of Tokyo Dental College
https://www.readbyqxmd.com/read/28370406/6-mm-long-implants-loaded-with-fiber-reinforced-composite-resin-bonded-fixed-prostheses-frcrbfdps-a-5-year-prospective-study
#10
Fabio Rossi, Niklaus P Lang, Emanuele Ricci, Lorenzo Ferraioli, Claudio Marchetti, Daniele Botticelli
AIM: To evaluate the clinical and radiographic outcomes and the survival rates of fiber-reinforced composite resin-bonded fixed prostheses (FRCRBFDPs) placed in the posterior area supported by two short (6 mm) implants. MATERIALS AND METHODS: Twenty consecutive patients received 40 SLActive 6-mm-long implants with a diameter of 4.1 mm (n = 29) or 4.8 mm (n = 11). Insertion torques and RFA (Resonance Frequency Analysis) were measured at implant installation...
March 28, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28370239/shortened-dental-arch-and-prosthetic-effect-on-oral-health-related-quality-of-life-a-systematic-review-and-meta-analysis
#11
REVIEW
Kenji Fueki, Kazuyoshi Baba
This systematic review aimed to compare oral health-related quality of life (OHRQoL) between two tooth replacement strategies-the shortened dental arch (SDA) concept and conventional treatment with removable partial dental prosthesis (RPDP) or implant-supported fixed partial dental prosthesis (IFPDP) -for distal extension of edentulous space in the posterior area. We retrieved eligible randomized controlled trials (RCTs) and non-RCTs published between 1980 and November 2016 retrieved from MEDLINE and the Cochrane Central Register of Controlled Trials...
March 31, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28368133/10-keys-for-successful-esthetic-zone-single-immediate-implants
#12
Robert A Levine, Jeffrey Ganeles, Luiz Gonzaga, Joseph K Kan, Harry Randel, Chris D Evans, Stephen T Chen
The 10 keys for successful esthetic-zone single immediate implants encapsulate in an evidencebased manner the treatment planning and replacement of single hopeless teeth in the maxillary anterior sextant. These include 2 treatment-planning, 5 surgical, and 3 prosthetic keys, which, collectively, aim to minimize soft- and hard-tissue complications for an optimal esthetic implant restoration. The straightforward, advanced, and complex (SAC) classification was designed to aid clinicians in the treatment planning of dental implant cases...
April 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28367911/sem-evaluation-of-the-precision-of-fit-of-cad-cam-zirconia-and-metal-ceramic-posterior-crowns
#13
Rocio Ortega, Esther Gonzalo, Miguel Gomez-Polo, Carlos Lopez-Suarez, Maria J Suarez
The purpose of this study is to evaluate the precision of fit of posterior crowns made from three commercial CAD/CAM zirconia ceramics and conventional metal-ceramic technique. The external and internal marginal fit of the crowns was evaluated using direct SEM-based measurements. The data were subjected to Kruskal-Wallis, multicomparison post hoc analysis and Wilcoxon rank sum tests (α=0.05). Significant differences were observed for the external (p<0.002) and the internal (p<0.0001) marginal evaluation among the groups...
March 29, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28348763/granulicatella-adiacens-prosthetic-hip-joint-infection-after-dental-treatment
#14
Osama Aweid, Sabapathy Sundararajan, Abraham Teferi
INTRODUCTION: Granulicatella adiacens is a Gram-positive bacteria and a normal component of oral flora. It is also found in dental plaques, endodontic abscesses and can rarely cause more serious infections. CASE PRESENTATION: We describe a prosthetic hip joint infection in an 81-year-old fit and healthy man due to Granulicatella adiacens who underwent a prolonged dental intervention two days earlier without antibiotic prophylaxis. The infection was successfully treated with surgical intervention and a combination of antibiotics...
June 2016: JMM Case Reports
https://www.readbyqxmd.com/read/28343678/maxillofacial-prosthetics-training-and-practice-profiles-in-the-united-states
#15
James L Sheets, Judy Chia-Chun Yuan, Cortino Sukotjo, Betsy K Davis, Alvin G Wee
STATEMENT OF PROBLEM: The motivation of maxillofacial prosthodontists to go into fellowship training and specific procedures in maxillofacial prosthetics practice once they have completed training has not been previously evaluated. PURPOSE: The purpose of this study was to survey maxillofacial prosthodontists in the United States to investigate their reasons for pursuing maxillofacial prosthetic training and their practice profiles. MATERIAL AND METHODS: In June 2015, a survey was sent to all US maxillofacial prosthodontists asking for descriptive demographics, their reasoning as to what prompted entrance into a maxillofacial prosthetic program, and their practice pattern...
March 23, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28343668/clinician-generated-torque-on-abutment-screws-using-different-hand-screwdrivers
#16
Marzieh Alikhasi, Mahmoud Kazemi, Hamid Jalali, Shervin Hashemzadeh, Hamide Dodangeh, Burak Yilmaz
STATEMENT OF PROBLEM: Many clinicians use hand screwdrivers to tighten prosthetic and abutment screws. The impact of the screwdriver type, the location of the implant, and the sex of the practitioner on the generated torque is not well understood. PURPOSE: The purpose of this in vitro study was to compare the torque generated by different hand screwdrivers when used in the anterior and posterior regions and to evaluate the correlation between the applied torque and the sex and body mass index (BMI) of the practitioner...
March 23, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28340915/quality-improvement-program-reduces-perioperative-dental-injuries-a-review-of-64-718-anesthetic-patients
#17
Yi-Wei Kuo, I-Cheng Lu, Hui-Ying Yang, Shun-Li Chiu, Hung-Te Hsu, Kuang-I Cheng
BACKGROUND: Perioperative dental injury (PDI) is a common adverse event associated with anesthesia that can easily lead to medicolegal litigation. A quality improvement program was conducted with the electronic, standardized dental chart to document dentition before anesthesia and dentist consultation when necessary. This study aimed to reduce PDIs through execution of a quality improvement program. METHODS: We reviewed the 42-month interval anesthetic records of 64,718 patients who underwent anesthesia...
December 2016: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28328610/removable-partial-denture-after-gunshot-injury-five-year-follow-up
#18
Eduardo Piza Pellizzer, Marcelo Coelho Goiato, Daniel Augusto de Faria Almeida, Rosse Mary Falcon-Antenucci, Cleidiel Aparecido Araujo Lemos, Victor Eduardo de Souza Batista, Fellippo Ramos Verri
The aim of this study was to report a patient of rehabilitation with removable partial denture retained by implants in-patient who suffered injury after firearm shooting. A 19-year-old man presented to the hospital of the Val Paraíso city after being hit by a bullet in the right on the face, affecting the teeth 12 to 16. The surgery to remove the shards of teeth, and bullet was performed. Surgical team opted for installation of implants without bone grafts; however, due to extensive loss of alveolar bone, only 3 tilted implants (2 Ø3...
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28327697/seven-mm-long-dental-implants-in-posterior-jaws-3-year-report-of-an-ongoing-prospective-single-cohort-study
#19
Paulo Maló, Miguel de Araújo Nobre, Armando Lopes, Inês Gonçalves, Mariana Nunes
PURPOSE: To report on the outcome of 7 mm long implants in the rehabilitation of posterior areas of atrophic jaws 3 years after loading. MATERIALS AND METHODS: This prospective study included 127 patients treated with 217 implants supporting 165 fixed prostheses. Final abutments were delivered at surgery stage and in the large majority of patients (n = 116) the implants (n = 199) were loaded after 4 months. Primary outcome measures were implant success and prosthetic success calculated at patient level; secondary outcome measures were complications, and marginal bone level changes calculated at patient level...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28327696/subcrestal-placement-of-dental-implants-with-an-internal-conical-connection-of-0-5%C3%A2-mm-versus-1-5%C3%A2-mm-outcome-of-a-multicentre-randomised-controlled-trial-1-year-after-loading
#20
Federico Gualini, Sergio Salina, Fabio Rigotti, Cristian Mazzarini, Diego Longhin, Mauro Grigoletto, Anna Trullenque-Eriksson, Luca Sbricoli, Marco Esposito
PURPOSE: To evaluate whether there are some clinical benefits by placing single dental implants either 0.5 or 1.5 mm subcrestally in healed bone crests. MATERIALS AND METHODS: Sixty partially edentulous patients requiring two single implant-supported crowns had both sites randomly allocated either to 0.5 mm or 1.5 mm subcrestal implant placement according to a split-mouth design at six centres. Implants were submerged in aesthetic areas or non-submerged in non-aesthetic areas for 3 months...
2017: European Journal of Oral Implantology
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