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Teeth implants

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https://www.readbyqxmd.com/read/28336321/the-histological-and-histomorphometric-changes-in-the-mandible-after-radiotherapy-an-animal-model
#1
Lucas J Poort, Johan H B Ludlage, Nienke Lie, Roland A Böckmann, Jim C E Odekerken, Frank J Hoebers, Peter A W H Kessler
PURPOSE: Approximately 5% of irradiated head and neck cancer patients develop osteoradionecrosis of the mandible. The current non-surgical treatment options for osteoradionecrosis have limited effects and are based on a small number of studies. Therefore, we aimed to enhance the understanding of the pathophysiology of osteoradionecrosis by investigating changes induced by external irradiation in mini-pigs. METHODS: Sixteen Göttingen mini-pigs were divided into four groups for the application in two fractions with total equivalent radiation dosages of 25, 50, 70 Gray, and one group served as control...
February 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28334058/benchmarking-outcomes-in-implant-prosthodontics-partial-fixed-dental-prostheses-and-crowns-supported-by-implants-with-a-turned-surface-over-10-to-28-years-at-the-university-of-toronto
#2
Asbjørn Jokstad, Anne M Gussgard, Joseph Fava, Mark Lin, Babak Shokati, Eszter Somogyi-Ganss, Brenton Winnett, Mohammed Zahran
PURPOSE: The aim of this noninterventional, retrospective study was to benchmark the outcomes of patients with partial fixed prostheses supported by implants treated at the University of Toronto at least 10 years earlier. A study protocol for assessing outcomes on like patients developed at the University of Bern, Switzerland, was followed. MATERIALS AND METHODS: All patients who had received at least one implant before 2002 were considered eligible to be included in the study (n = 298)...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28333394/socket-shield-technique-for-immediate-implant-placement-clinical-radiographic-and-volumetric-data-after-5%C3%A2-years
#3
Daniel Bäumer, Otto Zuhr, Stephan Rebele, Markus Hürzeler
OBJECTIVES: Implant placement immediately after tooth extraction is often accompanied by resorption of surrounding tissues. A clinical technique was developed where the buccal portion of the root is retained to preserve the periodontal ligament and bundle bone. This technique is based on animal studies showing the potential to preserve the facial tissues utilizing this approach. The purpose of this study was to gain more insight regarding the safety of the technique with regard to biological and implant-related long-term complications and to observe the clinical appearance of the peri-implant tissues...
March 23, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28328610/removable-partial-denture-after-gunshot-injury-five-year-follow-up
#4
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/28321876/effects-of-glucose-concentration-on-osteogenic-differentiation-of-type-ii-diabetes-mellitus-rat-bone-marrow-derived-mesenchymal-stromal-cells-on-a-nano-scale-modified-titanium
#5
I Yamawaki, Y Taguchi, S Komasa, A Tanaka, M Umeda
BACKGROUND AND OBJECTIVE: Diabetes mellitus (DM) is a common disease worldwide. Patients with DM have an increased risk of losing their teeth compared with other individuals. Dental implants are a standard of care for treating partial or full edentulism, and various implant surface treatments have recently been developed to increase dental implant stability. However, some studies have reported that DM reduces osseointegration and the success rate of dental implants. The purpose of this study was to determine the effects of high glucose levels for hard tissue formation on a nano-scale modified titanium surface...
March 21, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28321585/a-comparative-study-on-7-year-results-of-all-on-four%C3%A2-immediate-function-concept-for-completely-edentulous-mandibles-metal-ceramic-vs-bar-retained-superstructures
#6
Mustafa Ayna, Aydin Gülses, Yahya Acil
The study aims to document the clinical outcomes over a 7-year period of two techniques used for the rehabilitation of edentulous mandibles according to the "All-on-Four™" concept: (1) fixed complete-arch prostheses fabricated with metal-ceramic implant-supported fixed prosthesis with a titanium framework and all-ceramic crowns and (2) bar-retained implant-supported removable prosthesis with acrylic resin prosthetic teeth. The study was performed on 32 patients who received immediately loaded "All-on-Four™" fixed mandibular prostheses...
March 20, 2017: Odontology
https://www.readbyqxmd.com/read/28318917/radiological-changes-with-magnetic-resonance-imaging-and-computed-tomography-after-irradiating-minipig-mandibles-the-role-of-t2-spir-mixed-signal-intensities-in-the-detection-of-osteoradionecrosis
#7
Lucas J Poort, Alida A Postma, Annika A R Stadler, Roland A Böckmann, Frank J Hoebers, Peter A W H Kessler
PURPOSE: Radiotherapy in the head and neck can induce several radiologically detectable changes in bone, osteoradionecrosis (ORN) among them. The purpose is to investigate radiological changes in mandibular bone after irradiation with various doses with and without surgery and to determine imaging characteristics of radiotherapy and ORN in an animal model. MATERIALS AND METHODS: Sixteen Göttingen minipigs were divided into groups and were irradiated with two fractions with equivalent doses of 0, 25, 50 and 70 Gray...
February 12, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28318163/-the-influence-of-angulation-of-maxillary-anterior-teeth-on-treatment-design-of-dental-implants
#8
Liu Jin, Pu Bishuang, Xia Yulan, Wang Chengze, Wang Gang, Lan Jing
OBJECTIVE: This study aims to analyze the angulation of the maxillary anterior teeth relative to the alveolus to provide reference data for clinicians on the best conditions for implant placement in the esthetic zone. METHODS: Numerous cone beam computed tomography (CBCT) images were reviewed and screened. A total of 150 maxillary images were selected by strict adherence to the defined inclusive criteria, with 75 images each from male and female patients (between the ages of 19 and 48 years at the time of CBCT scan)...
December 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28317243/implant-supported-mandibular-removable-partial-dentures-functional-clinical-and-radiographical-parameters-in-relation-to-implant-position
#9
Charlotte Jensen, Caroline M Speksnijder, Gerry M Raghoebar, Wouter Kerdijk, Henny J A Meijer, Marco S Cune
BACKGROUND: Patients with a Kennedy class I situation often encounter problems with their removable partial denture (RPD). PURPOSE: To assess the functional benefits of implant support to RPDs, the clinical performance of the implants and teeth and to determine the most favorable implant position: the premolar (PM) or molar (M) region. MATERIALS AND METHODS: Thirty subjects received 2 PM and 2 M implants. A new RPD was made. Implant support was provided 3 months later...
March 20, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28314082/an-international-survey-among-prosthodontists-of-the-use-of-mandibular-implant-supported-dental-prostheses
#10
Mats Kronstrom, Gunnar E Carlsson
PURPOSE: To evaluate the use of implant-supported overdentures (IOD) and implant-supported fixed dental prostheses (IFDP) in patients with edentulous mandibles among international prosthodontists. MATERIALS AND METHODS: A questionnaire was sent by e-mail to all clinically active prosthodontists in the International College of Prosthodontists with questions related to implant treatment of the edentulous mandible performed in 2015. RESULTS: One hundred and sixteen prosthodontists from 33 countries responded to the questionnaire...
March 17, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28301683/how-to-treat-two-adjacent-missing-teeth-with-dental-implants-a-systematic-review-on-single-implant-supported-two-unit-cantilever-fdp-s-and-results-of-a-5-year-prospective-comparative-study-in-the-aesthetic-zone
#11
Wouter G Van Nimwegen, Gerry M Raghoebar, Nynke Tymstra, Arjan Vissink, Henny J A Meijer
AIM: To conduct a systematic review on the clinical outcome of single implant-supported two-unit cantilever FDP's and to conduct a 5-year prospective comparative pilot study of patients with a missing central and lateral upper incisor treated with either a single implant-supported two-unit cantilever FDP or two implants with solitary implant crowns in the aesthetic zone. MATERIAL AND METHODS: Medline, Embase and the Cochrane Central Register of Controlled Trials were searched (last search August 1, 2016) for eligible studies...
March 16, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28299281/new-bone-formation-by-orthodontic-tooth-movement-for-implant-placement
#12
Fatih Cabbar, Rahime Burcu Nur, Burcu Dikici, Ceyhun Canpolat, Gonca Duygu Capar
Bone defects at the anterior regions of the jaws often cause esthetic problems such as gingival disharmonies and longer crowns than neighboring teeth. Variety of procedures can be used in this region for achieving sufficient bone volume with or without different bone graft materials. All of these procedures has their own advantages and disadventages. New bone formation was defined with orthodontic tooth movement in different regions. In this case we present the use of orthodontic tooth movement, for achieving sufficient bone volume, in anterior maxillary region, for esthetic and functional results...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28299262/success-rate-in-implant-supported-overdenture-and-implant-supported-fixed-denture-in-cleft-lip-and-palate-patients
#13
Jaine Zanolla, Flávio Monteiro Amado, Willian Saranholi da Silva, Bruno Ayub, Ana Lúcia Pompéia Fraga de Almeida, Simone Soares
BACKGROUND: The prosthetic treatment in cleft patients is challenging. Based on this, the aim of this study was to evaluate the longevity of prosthetic rehabilitation treatment with implant-supported overdenture (IOD) and implant-supported fixed denture (IFD) in cleft lip and palate patients in a period of 22 years. MATERIALS AND METHODS: The medical records of 72 patients were analyzed (29 males and 43 females), and the survival rate of the implants was evaluated...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28298826/alveolar-ridge-preservation-using-autogenous-tooth-graft-versus-beta-tricalcium-phosphate-alloplast-a-randomized-controlled-prospective-clinical-pilot-study
#14
Chaitanya Pradeep Joshi, Nitin Hemchandra Dani, Smita Uday Khedkar
BACKGROUND: A randomized, prospective clinical, radiographical, and histological study was conducted to evaluate healing after alveolar ridge preservation technique using two different graft materials, namely, a novel autogenous graft material i. e., autogenous tooth graft (ATG) and beta-tricalcium phosphate (β-TCP) alloplast. MATERIALS AND METHODS: Fifteen patients undergoing extraction of at least three teeth were selected. Atraumatic extractions were performed...
July 2016: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/28296983/comparing-the-fracture-resistance-of-alternatively-engineered-zirconia-abutments-with-original-equipment-manufactured-abutments-with-different-implant-connection-designs
#15
Joseph M Jarman, Techkouhie Hamalian, Anthony P Randi
PURPOSE: Aftermarket computer-aided design/computer-assisted manufacture (CAD/CAM) milled zirconia (Zr) abutments were recently introduced with minimal independent research regarding their fracture resistance. Third-party manufacturers often alter the original equipment manufacturers' (OEM) design with unknown effects on fracture resistance. These alterations include elimination of the titanium insert with subsequent introduction of Zr into the implant, changes to connection designs and shapes, and/or alterations to prosthetic screw design...
March 15, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28291862/a-three-dimensional-finite-element-analysis-of-the-stress-distribution-generated-by-splinted-and-nonsplinted-prostheses-in-the-rehabilitation-of-various-bony-ridges-with-regular-or-short-morse-taper-implants
#16
Marcelo Bighetti Toniollo, Ana Paula Macedo, Renata Cristina Rodrigues, Ricardo Faria Ribeiro, Maria G de Mattos
PURPOSE: The aim of this study was to compare the biomechanical performance of splinted or nonsplinted prostheses over short- or regular-length Morse taper implants (5 mm and 11 mm, respectively) in the posterior area of the mandible using finite element analysis. MATERIALS AND METHODS: Three-dimensional geometric models of regular implants (Ø 4 × 11 mm) and short implants (Ø 4 × 5 mm) were placed into a simulated model of the left posterior mandible that included the first premolar tooth; all teeth posterior to this tooth had been removed...
March 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28291858/alveolar-ridge-dimension-6-months-after-implant-placement-with-simultaneous-hard-tissue-augmentation
#17
Siegfried Martin Heckmann, Barbara Mörtlbauer, Dominik Rieder, Manfred Wichmann, Tim Krafft, Antonios Moralis
PURPOSE: When failing front teeth are replaced by implants, vestibular bone deficiencies frequently require augmentation, even though the amount of missing alveolar volume may vary. The objective of this study was to analyze the horizontal alveolar ridge dimension after implant placement and simultaneous augmentation, and to compare it to the condition at the contralateral natural site. MATERIALS AND METHODS: Forty-eight patients with a failing maxillary incisor received an immediate or early implant (Straumann Bone Level), according to a randomized study protocol...
March 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28286678/restoration-implant-with-devastated-platform-through-metal-post
#18
Luna Salinas Tatiana, Del Valle Lovato Juan
Case Presentation. Implant prostheses are a successful treatment for replacing missing teeth. However, this treatment modality can have biological and mechanical complications causing serious problems for the dentist, as demonstrated in this clinical case. The patient presented with a fractured screw and a severely damaged implant hex connection that corresponded to the second premolar, upper left, stating that she unsuccessfully tried to remove the prosthetic screw, which was most likely to have been loose...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28282030/platelet-rich-plasma-for-regeneration-of-neural-feedback-pathways-around-dental-implants-a-concise-review-and-outlook-on-future-possibilities
#19
REVIEW
Yan Huang, Michael M Bornstein, Ivo Lambrichts, Hai-Yang Yu, Constantinus Politis, Reinhilde Jacobs
Along with the development of new materials, advanced medical imaging and surgical techniques, osseointegrated dental implants are considered a successful and constantly evolving treatment modality for the replacement of missing teeth in patients with complete or partial edentulism. The importance of restoring the peripheral neural feedback pathway and thus repairing the lack of periodontal mechanoreceptors after tooth extraction has been highlighted in the literature. Nevertheless, regenerating the nerve fibers and reconstructing the neural feedback pathways around osseointegrated implants remain a challenge...
March 10, 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/28281622/implant-retention-systems-for-implant-retained-overdentures
#20
D P Laverty, D Green, D Marrison, L Addy, M B M Thomas
Implant retained overdentures are being increasingly utilised in both general and specialist practice to rehabilitate patients with missing teeth, particularly those that are edentate. This article aims to inform the reader of a variety of retention systems that are available to retain an implant overdenture and to understand how these systems work, their advantages and disadvantages and to outline some of the clinical and treatment planning considerations involved in selecting the most appropriate retention system for patients...
March 10, 2017: British Dental Journal
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