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Implant Prosthodontics

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https://www.readbyqxmd.com/read/27871294/newly-designed-retentive-posts-of-mandibular-reconstruction-plate-in-oral-cancer-patients-based-on-preliminary-fem-study
#1
Ik Jae Kwon, Mi Young Eo, Sung Jae Park, Soung Min Kim, Jong Ho Lee
BACKGROUND: The reconstruction of a large mandibular defect poses a challenging issue in oral cancer ablation surgery. One popular option for mandibular continuity reconstruction after tumor resection involves the use of a reconstruction plate (R-plate), which maintains space and contour without bone harvesting. An R-plate, however, cannot provide final functional loading rehabilitation with implants or dentures. METHODS: We suggest a new method of functional mandibular reconstruction using retentive posts and an upper prosthesis...
November 21, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27836146/consequences-of-experience-and-specialist-training-on-the-fabrication-of-implant-supported-prostheses-a-survey
#2
Noga Harel, Zeev Ormianer, Efrat Zecharia, Avi Meirowitz
STATEMENT OF PROBLEM: Fabricating fixed restorations on implants requires that dentists stay up-to-date with the scientific publications. MATERIAL AND METHODS: A questionnaire containing 29 questions was sent to dentists, members of the Israeli Society of Prosthodontics, and university faculty members. Differences were evaluated using the chi-square and Fisher exact tests and Mann-Whitney U and Wilcoxon tests for questions enquiring into the frequency of use of certain methods (α=...
November 8, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27836143/facially-generated-and-cephalometric-guided-3d-digital-design-for-complete-mouth-implant-rehabilitation-a-clinical-report
#3
Christian Coachman, Marcelo Alexandre Calamita, Francis Gray Coachman, Robert Gray Coachman, Newton Sesma
Harmony among the teeth, lips, and facial components is the goal of prosthodontic treatment, whether performed by conventional or digital workflow methods. This clinical report describes a facial approach to planning computer-guided surgery and immediate computer-aided designed and computer-aided manufactured (CAD-CAM) interim complete-arch fixed dental prostheses on immediately placed dental implants with a digital workflow. A single clinical appointment for data collection included dentofacial documentation with photographs and videos...
November 8, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27826386/postoperative-irradiation-after-implant-placement-a-pilot-study-for-prosthetic-reconstruction
#4
Re-Mee Doh, Sungtae Kim, Ki Chang Keum, Jun Won Kim, June-Sung Shim, Han-Sung Jung, Kyeong-Mee Park, Moon-Kyu Chung
PURPOSE: On maxillofacial tumor patients, oral implant placement prior to postoperative radiotherapy can shorten the period of prosthetic reconstruction. There is still lack of research on effects of post-implant radiotherapy such as healing process or loading time, which is important for prosthodontic treatment planning. Therefore, this study evaluated the effects of post-implant local irradiation on the osseointegration of implants during different healing stages. MATERIALS AND METHODS: Custom-made implants were placed bilaterally on maxillary posterior edentulous area 4 weeks after extraction of the maxillary first molars in Forty-eight Sprague-Dawley rats...
October 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27814254/implant-assisted-removable-partial-dentures-practical-considerations
#5
Aaron J Omura, Vaibhav Latthe, Mark M Marin, David R Cagna
At the heart of prosthodontic treatment planning must be a sound understanding of the quality and reliability of the prosthodontic foundation. Implant prosthodontics relies almost entirely on the biological and mechanical properties of an osseous foundation. Initiation of therapy in the absence of a healthy and stable prosthodontic foundation risks unintended and suboptimal treatment outcomes. For conventional removable partial denture (RPD) therapy, consideration must be given to interactions between the soft and hard tissues available to support and stabilize planned prostheses...
November 2016: General Dentistry
https://www.readbyqxmd.com/read/27804205/comparative-clinical-study-of-conventional-dental-implants-and-mini-dental-implants-for-mandibular-overdentures-a-randomized-clinical-trial
#6
Weerapan Aunmeungtong, Thongnard Kumchai, Frank P Strietzel, Peter A Reichart, Pathawee Khongkhunthian
BACKGROUND: Dental implant-retained overdentures have been chosen as the treatment of choice for complete mandibular removable dentures. Dental implants, such as mini dental implants, and components for retaining overdentures, are commercially available. However, comparative clinical studies comparing mini dental implants and conventional dental implants using different attachment for implant-retained overdentures have not been well documented. PURPOSE: To compare the clinical outcomes of using two mini dental implants with Equator(®) attachments, four mini dental implants with Equator attachments, or two conventional dental implants with ball attachments, by means of a randomized clinical trial...
November 1, 2016: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/27790591/prosthodontic-rehabilitation-of-accidental-maxillofacial-gunshot-injury-using-dental-implants-a-five-year-follow-up-clinical-report
#7
Vinod Balla, Angleena Y Daniel, Nirmal Kurian
Gunshot injuries to the face can have serious aesthetic, functional, and psychological consequences. The incapacitating nature of maxillofacial defects makes reconstruction of the maxilla and mandible challenging, owing to multiple surgeries and extensive rehabilitation phase. Outcome of prosthodontic treatment is one of the important parameters by which a patient measures the success of rehabilitation. A 5-year follow-up of comprehensive surgical and prosthodontic reconstruction of a gunshot injury using dental implants is described...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27776880/guided-autotransplantation-of-teeth-a-novel-method-using-virtually-planned-3-dimensional-templates
#8
Georg D Strbac, Albrecht Schnappauf, Katharina Giannis, Michael H Bertl, Andreas Moritz, Christian Ulm
INTRODUCTION: The aim of this study was to introduce an innovative method for autotransplantation of teeth using 3-dimensional (3D) surgical templates for guided osteotomy preparation and donor tooth placement. METHODS: This report describes autotransplantation of immature premolars as treatment of an 11-year-old boy having suffered severe trauma with avulsion of permanent maxillary incisors. This approach uses modified methods from guided implant surgery by superimposition of Digital Imaging and Communications in Medicine files and 3D data sets of the jaws in order to predesign 3D printed templates with the aid of a fully digital workflow...
October 21, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27763947/prosthetic-rehabilitation-after-fibular-free-flap-surgery-of-mandibular-defects-in-a-patient-with-oral-squamous-cell-carcinoma
#9
Hyung-In Yoon
OBJECTIVE: This report is to present the treatment procedure and clinical considerations of prosthodontic management of a patient who had undergone a partial mandibulectomy and fibular free flap surgery. DESIGN: A 59-year-old man with a squamous cell carcinoma received a partial mandibular resection. Microsurgical reconstruction with a fibular free flap surgery and implant-supported zirconia-fixed prosthesis produced by computer-aided manufacturing led to successful results for the oral rehabilitation of mandibular defects...
October 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27747626/current-status-of-implant-prosthetics-in-japan-a-survey-among-certified-dental-lab-technicians
#10
Yoshiyuki Hagiwara, Tatsuya Narita, Yohei Shioda, Keisuke Iwasaki, Takayuki Ikeda, Shunsuke Namaki, Thomas J Salinas
BACKGROUND: There are many implant cases in which dental technicians take initiative with regard to the design of implant prostheses, and to a certain extent, this area of care is one in which dentists do not necessarily play the leading role. Moreover, inadequate communication between dental technicians and dentists and insufficient instructions for technicians has been highlighted as issues in the past. The purpose of this questionnaire is to improve the quality of implant prostheses and thereby contribute to patient service by clarifying, among other aspects of treatment, problem areas and considerations in the fabrication of implant prostheses, conceptual-level knowledge, and awareness of prosthodontics on the part of the dentists in charge of treatment and methods for preventing prosthetic complications...
December 2015: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/27746600/influence-of-three-different-implant-thread-designs-on-stress-distribution-a-three-dimensional-finite-element-analysis
#11
Mansi Manish Oswal, Ulhas N Amasi, Manish S Oswal, Ashish S Bhagat
PURPOSE: Clinical success of implant prosthodontics is dependent in part upon the type of implant thread design. The selection of implant thread design plays an important role in the outcome of the treatment. This study was undertaken to evaluate the pattern of stress distribution using a finite element analysis; hence, the area which would be bearing maximum load for a given design would be arrived. MATERIALS AND METHODS: Three implants with different thread designs, namely V-thread, buttress, and reverse buttress thread designs were considered and dimensions were standardized...
October 2016: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/27689932/professional-variability-in-decision-making-in-modern-dentistry-a-pilot-study
#12
S Listl, C M Faggion, H J Staehle
Dental treatment planning is usually expected to take account of the individual patient's clinical risks and benefits. Ideally, the therapeutic choice for each and every patient should be based on adequate clinical diagnostics and risk assessment that facilitates stabilization of the patient's clinical condition as well as prevents further oral impairment. However, identification of the most suitable approach tends to become more and more challenging as the number of therapeutic alternatives continues to increase due to medical innovation...
September 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27677215/retentive-strength-of-implant-supported-cad-cam-lithium-disilicate-crowns-on-zirconia-custom-abutments-using-6%C3%A2-different-cements
#13
Krysta Sellers, John M Powers, Sudarat Kiat-Amnuay
STATEMENT OF PROBLEM: The optimal retention of implant-supported ceramic crowns on zirconia abutments is a goal of prosthodontic treatment. PURPOSE: The purpose of this in vitro study was to evaluate the retentive strength of implant-supported IPS e.max CAD-CAM (e.max) crowns bonded to custom zirconia implant abutments with different cements. MATERIAL AND METHODS: An optical scan of a zirconia custom abutment and a complete-coverage modified crown was designed using an intraoral E4D scanner...
September 24, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27663724/zirconia-abutments-for-single-tooth-implant-restorations-a-10-to-11-year-follow-up-study
#14
Anders Ekfeldt, Björn Fürst, Gunnar E Carlsson
OBJECTIVES: To evaluate the clinical outcome of custom-made zirconia abutments for implant-supported single-tooth restorations 10-11 years after insertion. MATERIAL AND METHODS: The study comprises a clinical examination of 23 patients with 30 restorations placed 10-11 years ago. Oral surgeons placed the implants. The prosthodontic treatment was provided at a prosthodontic specialist clinic. The restoration was either an all-ceramic crown for cementation or a screw-retained one-piece restoration with the veneering porcelain baked directly to the zirconia abutment...
September 24, 2016: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27599034/comparative-assessment-of-a-new-holistic-oriented-and-an-old-specialty-specific-undergraduate-curriculum-in-removable-prosthodontics-a-study-based-on-senior-students-perceptions
#15
Sofia Papadiochou, Eleni Kotsiomiti, Argirios L Pissiotis
PURPOSE: A survey was conducted in the Dental School, Aristotle University, Thessaloniki, Greece, (i) to assess the perceptions and experiences of senior dental students, Classes of 2014 and 2015, toward the old, specialty-specific (OC) and new, holistic-oriented (NC) undergraduate curriculum, respectively, in removable prosthodontics and (ii) to identify areas of improvement in prosthodontic training. MATERIALS AND METHODS: Structural components of both curricula were collected, including the total number of (i) laboratory/lecture/clinical training hours, (ii) written examinations, (iii) mandatory clinical cases, and (iv) European Credit Transfer and Accumulation System (ECTS) credits...
September 6, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/27553255/a-prospective-clinical-cohort-study-analyzing-single-unit-implant-crowns-after-three-years-of-loading-introduction-of-a-novel-functional-implant-prosthodontic-score-fips
#16
Tim Joda, Marco Ferrari, Urs Bragger
OBJECTIVES: The aim of this prospective clinical cohort study was to validate implant crowns with a novel Functional Implant Prosthodontic Score (FIPS). MATERIAL AND METHODS: Twenty patients were restored with cement-retained crowns on soft tissue level implants (Institut Straumann AG, Basel, Switzerland) in posterior sites and annually followed-up for 3 years. FIPS was applied for the objective outcome assessment including clinical and radiographic examinations...
August 23, 2016: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27491509/multidisciplinary-treatment-of-severe-upper-incisor-root-resorption-secondary-to-transposed-canine
#17
Yasemin Nur Korkmaz, Filiz Yagci
OBJECTIVE: Tooth transposition is a rare dental anomaly that could lead to undesirable side effects on other teeth. This case report aims to describe the multidisciplinary treatment of a patient with a severely resorbed permanent maxillary central incisor due to transposition with the permanent canine. CLINICAL CONSIDERATIONS: A girl aged 13 years and 7 months with a chief complaint of a pink spot on her maxillary left incisor with a slightly erupted tooth above it was referred to our clinic...
August 5, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27479337/maxillary-three-implant-overdentures-opposing-mandibular-two-implant-overdentures-10-year-prosthodontic-outcomes
#18
Sunyoung Ma, J Neil Waddell, Momen A Atieh, Nabeel Hm Alsabeeha, Alan Gt Payne
PURPOSE: This study aimed to evaluate the 10-year prosthodontic outcomes with splinted and unsplinted designs for maxillary overdentures on three implants opposing mandibular two-implant overdentures. MATERIALS AND METHODS: Using two similar implant systems, 40 edentulous participants with existing mandibular two-implant overdentures were randomly allocated to two prosthodontic treatment groups (splinted design with bar units; unsplinted design with ball attachments)...
July 2016: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/27475917/torque-resistance-of-impression-copings-after-direct-implant-impression-an-in%C3%A2-vitro-evaluation-of-impression-materials-with-and-without-adhesive
#19
Pascal Auroy, Emanuel Nicolas, Yvan Bedouin
STATEMENT OF PROBLEM: No data are available on the ability of an impression coping to resist the manual placement of an abutment replica (implant analog) during prosthodontic laboratory procedures after a direct (pick-up) impression. PURPOSE: The purpose of this in vitro study was to evaluate the torque resistance of impression copings after a direct impression, that is, the amount of rotational torque sufficient to induce irreversible displacement of impression copings in the impression material bulk once the impression has been made...
July 28, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27402299/biocompatibility-of-polymer-infiltrated-ceramic-network-picn-materials-with-human-gingival-fibroblasts-hgfs
#20
Charlotte Grenade, Marie-Claire De Pauw-Gillet, Patrick Gailly, Alain Vanheusden, Amélie Mainjot
OBJECTIVES: Polymer-infiltrated-ceramic-network (PICN) materials constitute an innovative class of CAD-CAM materials offering promising perspectives in prosthodontics, but no data are available in the literature regarding their biological properties. The objective of the present study was to evaluate the in vitro biocompatibility of PICNs with human gingival fibroblasts (HGFs) in comparison with materials typically used for implant prostheses and abutments. METHODS: HGF attachment, proliferation and spreading on discs made of PICN, grade V titanium (Ti), yttrium zirconia (Zi), lithium disilicate glass-ceramic (eM) and polytetrafluoroethylene (negative control), were evaluated using a specific insert-based culture system (IBS-R)...
September 2016: Dental Materials: Official Publication of the Academy of Dental Materials
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