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https://www.readbyqxmd.com/read/28526429/use-of-a-cad-cam-poly-methyl-methacrylate-interim-prosthesis-for-direct-intraoral-splinting
#1
Periklis Proussaefs
This article describes a technique where an interim computer-aided design and computer-aided manufacturing (CAD-CAM) prosthesis is milled from a poly(methyl methacrylate) blank to confirm esthetics, occlusion, function, phonetics, and accessibility for oral hygiene. The interim prosthesis is then sectioned and reconnected intraorally with autopolymerizing acrylic resin. This interim prosthesis is used to fabricate the definitive stone cast. The interim prosthesis is then scanned with a laboratory scanner. By applying this technique, the implant positioning can be related to the occlusal plane, the contours of the teeth, and the flange...
May 16, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28523641/sandwich-bone-graft-for-vertical-augmentation-of-the-posterior-maxillary-region-a-case-report-with-9-year-follow-up
#2
Kenko Tanaka, Irena Sailer, Yoshihiro Kataoka, Shinnosuke Nogami, Tetsu Takahashi
The loss of teeth followed by bone resorption often lead to defects in the alveolar ridge, making installation of dental implants difficult. Correction of such bone defects, especially lack of height of the ridge, is a difficult problem for all dental surgeons. This report describes the outcome of treatment after alveolar ridge augmentation in the atrophic posterior maxillary region via segmental sandwich osteotomy combined with placement of an interpositional autograft prior to placement of endosseous implants...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28518183/preclinical-evaluation-of-a-crown-splinted-custom-root-shaped-implant
#3
Elias D Kontogiorgos, Poorva Gharpure, Eberechukwu O Iheanacho, Christopher J Gonzales, Lynne A Opperman
OBJECTIVE: To test whether a Maryland bridge-type splint provides adequate stability for a custom root-shaped implant to osseointegrate in a manner substantially equivalent to that of a threaded implant. METHODS: Six beagle dogs were subjected to intraoral impressions and cone beam scans that were used to fabricate custom root-shaped implants (RTIs) and crowns. Premolars in the mandible (P4) and in the maxilla (P3) were extracted, and 24 RTIs were immediately placed in extraction sockets...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28518181/a-semi-automatic-algorithm-for-preliminary-assessment-of-labial-gingiva-and-alveolar-bone-thickness-of-maxillary-anterior-teeth
#4
Sheng-Hung Chen, Hsun-Liang Chan, Yongning Lu, Sim-Heng Ong, Hom-Lay Wang, Eng Hong Ko, Po-Chun Chang
PURPOSE: Soft and hard tissue volumes are critical for implant placement and long-term stability. Although the literature has adequately addressed tissue biotypes of Western populations, pertinent information about Asian populations is limited. This study aimed to evaluate the soft and hard tissue profiles of the maxillary anterior teeth of the Taiwanese population using a semi-automatic algorithm. MATERIALS AND METHODS: Cone beam computed tomography images of 11 adults with well-aligned maxillary anterior teeth were overlaid with those of cast models, based on the tooth crowns manually outlined by two independent observers...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28517973/periodontal-referral-patterns-in-australia-2000-versus-2015
#5
Leah M Brown, Patrick Bowman, Vincent J O'Rourke, Faustino Mercado, Roderick Marshall, Scott Parsons
BACKGROUND: A previous study had investigated differences in the severity of periodontal disease on referral for specialist care between 1980 and 2000 across the USA. This study found patients referred in 2000 had a greater severity of periodontal disease than those referred twenty years prior. METHODS: A retrospective chart analysis of 384 charts was completed from three periodontal practices across the east coast of Australia. Two time periods were investigated; 2000-2001 and 2015-2016...
May 18, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28513894/the-dentoalveolar-prosthesis-a-novel-approach-in-the-reconstruction-of-hard-and-soft-tissue-deficiencies
#6
James K Doll, Peter Barndt, Gerald Grant
A clinical problem commonly encountered by the advanced restorative dentist is a requirement to replace missing teeth and the supporting alveolus in areas adjacent to healthy or manageable dentition. A potential solution could utilize a dentoalveolar prosthesis fabricated on two or more implants in the edentulous area. The implant substructure, or framework, may be cast, milled, or selectively laser melted from a variety of metals. A superstructure, or ceramic overlay incorporating a ceramic or composite resin gingival tissue component, is constructed to fit over the implant substructure and luted to the substructure with resin cement...
May 17, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28512281/intricate-assessment-and-evaluation-of-long-term-implant-success-as-affected-by-clinicomicrobial-and-salivary-diagnostics-in-type-ii-diabetic-patients-a-longitudinal-study
#7
Deepti Raghav, Fawaz Alqahtani, Fatima J Albaker, Tushar V Bhagat, Zaheer Kola
INTRODUCTION: Replacement of missing teeth by dental implants is one of the most common methods employed these days. Because of significant advancement in the design of implants and modifications in the procedure of dental implant surgery, the survival rate of the dental implants has reached up to approximately 95%. Osseointegration is one of the important factors affecting the survival of dental implants. Apart from these, the body's physiologic alterations can also predispose the dental implants for failure...
May 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28511528/immediate-placement-of-zirconia-implants-in-teeth-with-periapical-lesions-a-case-report
#8
Nizar A Ahmed, Caroline Annette Jacob, Preetham Prasad Nittla
This case report records the replacement of two failed endodontically treated mandibular molars with one piece zirconia implants in a patient with metal hypersensitivity. The two molars were atraumatically extracted and curetted to remove any remnants of a periapical granuloma. Immediate implant placement with primary stability was achieved using one piece WhiteSky(®) Bredent zirconia implants which were restored after four months with a zirconia crown. One year follow up revealed successful osseointegration with optimal form and function...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28503481/dental-management-of-patients-with-x-linked-hypophosphatemia
#9
Bin-Na Lee, Hye-Yoon Jung, Hoon-Sang Chang, Yun-Chan Hwang, Won-Mann Oh
X-linked hypophosphatemia (XLH) is a hereditary metabolic disease caused by the loss of phosphate through the renal tubules into the urine, and an associated decrease in serum calcium and potassium phosphate. Its dental features include spontaneous dental abscesses that occur in the absence of trauma or dental caries. The aim of this case report was to describe the dental problems of XLH patients and to evaluate limitations in their treatment. A 14 year old male and a 38 year old female with XLH were referred to the Department of Conservative Dentistry for endodontic treatment...
May 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28502649/post-implantation-development-of-red-rumped-agouti-dasyprocta-leporina-linnaeus-1758
#10
Gleidson Benevides de Oliveira, Hélio Noberto de Araújo Júnior, Herson da Silva Costa, Alexandre Rodrigues Silva, Carlos Eduardo Bezerra de Moura, Hugo Alexandre de Oliveira Rocha, Maria Angélica Miglino, Moacir Franco de Oliveira
Fourteen pregnant agouti (Dasyprocta leporina Linnaeus, 1758) females at gestational ages of 30-100days and two at gestational ages of 55-100days, were studied, including 24 embryos/fetuses and two neonates (single offspring from two females). Females were euthanized and embryos/fetuses were examined, measured, and photographed. Embryos at 30days post-copulation were "C-shaped," with paddle-shaped limb buds and 10.75±0.11mm crown-rump length (CRL). In embryos at 35days post-copulation, paddle-shaped forelimbs, fin-shaped pelvic limbs, and a liver bud were evident, with 15...
May 2, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28502196/pendulum-and-modified-pendulum-appliances-for-maxillary-molar-distalization-in-class-ii-malocclusion-a-systematic-review
#11
Yousef Al-Thomali, Sakeenabi Basha, Roshan Noor Mohamed
OBJECTIVE: The main purpose of the present systematic review was to evaluate the quantitative effects of the pendulum appliance and modified pendulum appliances for maxillary molar distalization in Class II malocclusion. MATERIALS AND METHODS: Our systematic search included MEDLINE, EMBASE, CINAHL, PsychINFO, Scopus and key journals and review articles; the date of the last search was 30 January 2017. We graded the methodological quality of the studies by means of the Quality Assessment Tool for Quantitative Studies, developed for the Effective Public Health Practice Project (EPHPP)...
May 13, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28499506/influence-of-implant-location-in-patients-with-and-without-type-2-diabetes-mellitus-2-year-follow-up
#12
T Abduljabbar, F Javed, V R Malignaggi, F Vohra, S V Kellesarian
The aim of the present cross-sectional retrospective 2-year follow-up clinical study was to assess the influence of implant location on clinical and radiographic parameters around dental implants placed in patients with and without type 2 diabetes mellitus (T2DM). Twenty-seven patients with T2DM and 25 non-diabetic controls were included. Implants were classified into three zones according to their location: (1) anterior zone: implant/s replacing anterior teeth, (2) middle zone: implant/s replacing premolars, and (3) posterior zone: implant/s replacing molars...
May 9, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28494032/radiographic-appearance-of-interocclusal-record-materials-for-cone-beam-computed-tomography-guided-implant-surgeries
#13
Vrinda V Mohunta, Edwin A McGlumphy, Do-Gyoon Kim, Shereen S Azer
PURPOSE: To select an ideal interocclusal record material for cone beam computed tomography (CBCT)-guided implant surgery based on the material's radiodensity on the scan. MATERIALS AND METHODS: Twelve commonly used interocclusal record materials were used for this investigation: two were waxes, one was polyether, and nine were polyvinyl-siloxane-type materials. A scan template was fabricated by duplicating existing dentures in Ortho-Jet acrylic resin mixed with 30% barium powder for the teeth and 10% barium powder for the denture base between the teeth and the tissue...
May 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28492362/microbiota-analysis-of-biofilms-on-experimental-abutments-mimicking-dental-implants-an-in-vivo-model
#14
Berta Cortés-Acha, Rui Figueiredo, Ramón Seminago, Francisco J Roig, Carlos Llorens, Eduard Valmaseda-Castellón
BACKGROUND: The microbiota colonizing dental implants has been said to be similar to the microbiome surrounding teeth. In the absence of inflammation, a biofilm with pathological bacteria can cover implant surfaces exposed to the oral cavity, due for example, to a remodeling process. The aim of the present study was to identify the microbiota surrounding exposed dental implants in patients with and without a history of periodontitis through a deep-sequencing approach. METHODS: An experimental abutment with the same surface and structure as a commercially available dental implant was used...
May 11, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28490947/preliminary-fabrication-and-characterization-of-electron-beam-melted-ti-6al-4v-customized-dental-implant
#15
Ravikumar Ramakrishnaiah, Abdulaziz Abdullah Al Kheraif, Ashfaq Mohammad, Darshan Devang Divakar, Sunil Babu Kotha, Sree Lalita Celur, Mohamed I Hashem, Pekka K Vallittu, Ihtesham Ur Rehman
The current study was aimed to fabricate customized root form dental implant using additive manufacturing technique for the replacement of missing teeth. The root form dental implant was designed using Geomagic™ and Magics™, the designed implant was directly manufactured by layering technique using ARCAM A2™ electron beam melting system by employing medical grade Ti-6Al-4V alloy powder. Furthermore, the fabricated implant was characterized in terms of certain clinically important parameters such as surface microstructure, surface topography, chemical purity and internal porosity...
May 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28488942/goat-model-for-direct-visualizing-the-effectiveness-of-detaching-sinus-mucosa-in-real-time-during-crestal-maxillary-sinus-floor-elevation
#16
Jiadong Fan, Pin Hu, Yanfeng Li, Fuli Wang, Xinming Dong, Bin Liu, Le Liu, Yue Zhang, Xiangmin Gu
The procedure of crestal maxillary sinus floor elevation presents a great challenge to the field of implant dentistry. Due to the limited visualization in this procedure, the effectiveness of detaching sinus mucosa could not be assessed in real time. We recently developed an ex vivo goat sinus model by cutting the goat residual skulls along four lines determined from computerized tomography (CT) scans, extracting the maxillary pre-molar or molar teeth, and preparing implant socket in the maxilla. The generated ex vivo goat sinus models exposed the maxilla and the whole maxillary sinus mucosa, thus enabling real time observation of detaching maxillary sinus mucosa via directly visualizing the working situation of sinus lift tool in the models, and directly measuring the length of detached mucosa and the space volume generated under the elevated sinus mucosa...
May 10, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28483283/-the-mouth-of-patients-with-hypo-and-pseudohypoparathyroidism
#17
François Wémeau, Jean-Louis Wémeau
Chronic calcipenia related to hypo- and pseudohypoparathyroidism favors trophic complications, especially expressed on the buccal cavity. Correlated with early onset of the disease and imperfect correction of the metabolic disorders, retardation to appearance and implantation of teeth are observed. The buccal signs often are the most immediately visible expression of the disease. They are painful and disabling. Other acute expressions reflect the neuromuscular hyperexcitability related to tetany. Finally, some etiologies determine specific damage, as in Di George's, HDR syndromes or in Albright's osteodystrophia...
May 5, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28474783/discomfort-pain-due-to-periodontal-and-peri-implant-probing-implant-type-and-age
#18
Julia Ryska, Matthias Klum, Puria Parvini, Otto Zuhr, Katrin Nickles, Peter Eickholz
AIM: There is evidence that patients experience more discomfort/pain after peri-implant probing than periodontal probing. However, there are several plausible factors to additionally influence this observation: e.g. implant type, age, smoking. Thus, this study was designed to compare discomfort/pain after periodontal and peri-implant probing in different implant types. METHODS: 2 dentists recruited and examined 80 patients, each of them exhibiting a dental implant with a contralateral natural tooth...
May 5, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28473930/full-mouth-reconstruction-of-a-skeletal-class-ii-division-1-patient-with-adenoid-cystic-carcinoma-using-an-interim-immediate-obturator-and-a-definitive-obturator
#19
Mehran Bahrami, Seyed Mehran Falahchai
A 61-year-old female patient with adenoid cystic carcinoma (ACC) of the right maxilla and Angle class II division 1 malocclusion had received a subtotal maxillectomy in right side and used a conventional clasp-retained obturator. After implants placement, a maxillary interim immediate obturator (IIO) and then a definitive obturator using six endosseous implants were fabricated. During one-year follow-up, the patient was completely satisfied. Ideally, after implants placement in edentulous patients suffering from hemimaxillectomy, an implant-supported obturator (ISO) is designed in order to prevent nasal reflux and to improve speech and swallowing...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28469945/osteomyelitis-of-the-mandible-after-dental-implants-in-an-immunocompetent-patient
#20
Matthieu Balanger, Margaux Hinet, Christian Vacher, Norbert Bellaiche, Jean-Luc Charrier, Sarah Millot
Dental implants are now broadly used to replace missing teeth, and the presence of infectious complications is rising. Dental implant therapy as a local risk factor for the onset of osteomyelitis and its management have not been widely explored. Here, we report an unusual case of mandibular suppurative osteomyelitis caused by Streptococcus intermedius in a healthy and immunocompetent patient secondary to mandibular implants. We describe how surgery combined with systemic application of antibiotics allowed conservation of the dental implants in the mandibular bone, discuss the probable source of contamination, and present the follow-up of the osteomyelitis...
2017: Case Reports in Dentistry
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