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dental implant neck design

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https://www.readbyqxmd.com/read/29912481/osseointegration-of-zirconia-implants-with-3-varying-surface-textures-and-a-titanium-implant-a-histological-and-micro-ct-study
#1
Paweł Kubasiewicz-Ross, Jakub Hadzik, Marzena Dominiak
BACKGROUND: Zirconium - a bioinert metal - in comparison with titanium implants, offers a variety of potential advantages for use in the esthetic area of dentistry due to its tooth-like color. Zirconium dental implants are considered to be an alternative method of treatment to conventional titanium dental implants for patients with a thin gingival biotype. OBJECTIVES: This study was designed to study the bone tissue response to new zirconia implants with modified surfaces in comparison with commercially available titanium dental implants and commercially available zirconia implants...
June 18, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29747801/microgap-and-micromotion-at-the-implant-abutment-interface-cause-marginal-bone-loss-around-dental-implant-but-more-evidence-is-needed
#2
Ahmed Yaseen Alqutaibi, Afaf Noman Aboalrejal
ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: Influences of micro-gap and micromotion of the implant-abutment interface on marginal bone loss around implant neck. Liu Y, Wang J. Arch Oral Biol 2017;83:153-60. SOURCE OF FUNDING: This study was financially supported by grants from the National Natural Science Foundation of China (81570956) and the Bureau of Science and Technology of Wuhan ([2014]160, 2015060101010051) TYPE OF STUDY/DESIGN: Comprehensive literature review...
June 2018: Journal of Evidence-based Dental Practice
https://www.readbyqxmd.com/read/29682254/stress-distribution-of-various-designs-of-prostheses-on-short-implants-or-standard-implants-in-posterior-maxilla-a-three-dimensional-finite-element-analysis
#3
K Jomjunyong, P Rungsiyakull, C Rungsiyakull, W Aunmeungtong, M Chantaramungkorn, P Khongkhunthian
Introduction: Although many previous studies have reported on the high success rate of short dental implants, prosthetic design still plays an important role in the long-term implant treatment results. This study aims to evaluate stress distribution characteristics involved with various prosthetic designs on standard implants or short implants in the posterior maxilla. Materials and methods: Six finite element models were simulated representing the missing first and second maxillary molars...
October 2017: Oral & Implantology
https://www.readbyqxmd.com/read/29578264/influence-of-different-implant-geometry-in-clinical-longevity-and-maintenance-of-marginal-bone-a-systematic-review
#4
REVIEW
Sabrina Telles Lovatto, Rafaela Bassani, Rafael Sarkis-Onofre, Mateus Bertolini Fernandes Dos Santos
PURPOSE: To assess, through a systematic review, the influence of different implant geometries on clinical longevity and maintenance of marginal bone tissue. METHODS: An electronic search was conducted in MEDLINE, Scopus, and Web of Science databases, limited to studies written in English from 1996 to 2017 using specific search strategies. Only randomized controlled trials (RCTs) that compared dental implants and their geometries were included. Two reviewers independently selected studies, extracted data, and assessed the risk of bias of included studies...
March 26, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29506957/prefabricated-fibula-free-flap-with-dental-implants-for-mandibular-reconstruction
#5
D Pauchet, J-L Pigot, F Chabolle, C-A Bach
Free fibula transplant is routinely used for mandibular reconstruction in head and neck cancer. Dental rehabilitation, the objective of mandibular reconstruction, requires the use of dental implants as supports for fixed or removable dentures. Positioning of fibular bone grafts and implants determines implant osseointegration and the possibilities of dental rehabilitation. Prefabrication of a fibula free flap with dental implants prior to harvesting as a free flap can promote implant osseointegration. The position of the implants must then be precisely planned...
March 2, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29470184/impact-of-3d-virtual-planning-on-reconstruction-of-mandibular-and-maxillary-surgical-defects-in-head-and-neck-oncology
#6
Max J H Witjes, Rutger H Schepers, Joep Kraeima
PURPOSE OF REVIEW: This review describes the advances in 3D virtual planning for mandibular and maxillary reconstruction surgical defects with full prosthetic rehabilitation. The primary purpose is to provide an overview of various techniques that apply 3D technology safely in primary and secondary reconstructive cases of patients suffering from head and neck cancer. RECENT FINDINGS: Methods have been developed to overcome the problem of control over the margin during surgery while the crucial decision with regard to resection margin and planning of osteotomies were predetermined by virtual planning...
April 2018: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/29329255/peri-implant-behavior-of-sloped-shoulder-dental-implants-used-for-all-on-four-protocols-an-histomorphometric-analysis-in-dogs
#7
Jose Luis Calvo Guirado, Aldo Fabian Lucero-Sánchez, Ana Boquete Castro, Marcus Abboud, Sergio Gehrke, Manuel Fernández Dominguez, Rafael Arcesio Delgado Ruiz
The aim of this study was to evaluate the soft tissue thickness and marginal bone loss around dental implants with sloped micro-threaded shoulder (35° angle) in comparing with conventional design, inserted 35° degrees angulated in post extraction sockets and immediate loaded with temporary prosthesis simulating the all-on-four protocol. Materials and Methods: Six fox hound dogs received forty-eight post extraction dental implants with the same diameter and length (Medentika, Germany), but with different neck configurations...
January 12, 2018: Materials
https://www.readbyqxmd.com/read/29316962/hopon-hyperbaric-oxygen-for-the-prevention-of-osteoradionecrosis-a-randomised-controlled-trial-of-hyperbaric-oxygen-to-prevent-osteoradionecrosis-of-the-irradiated-mandible-study-protocol-for-a-randomised-controlled-trial
#8
Richard Shaw, Christopher Butterworth, Binyam Tesfaye, Matthew Bickerstaff, Susanna Dodd, Gary Smerdon, Seema Chauhan, Peter Brennan, Keith Webster, James McCaul, Peter Nixon, Anastasios Kanatas, Paul Silcocks
BACKGROUND: Osteoradionecrosis of the mandible is the most common serious complication of radiotherapy for head and neck malignancy. For decades, hyperbaric oxygen has been employed in efforts to prevent those cases of osteoradionecrosis that are precipitated by dental extractions or implant placement. The evidence for using hyperbaric oxygen remains poor and current clinical practice varies greatly. We describe a protocol for a clinical trial to assess the benefit of hyperbaric oxygen in the prevention of osteoradionecrosis during surgery on the irradiated mandible...
January 10, 2018: Trials
https://www.readbyqxmd.com/read/29314652/evaluation-of-bone-stimulation-by-different-designs-of-microthreaded-implants-in-enhancing-osseointegration-an-in-vivo-animal-study-supported-by-a-numerical-analysis
#9
Sindhu Sudhakar Kumararama, Sunil Mishra, Ramesh Chowdhary
BACKGROUND: An optimal shape of the thread design of the implants is required for equal distribution of stresses to the surrounding bone matrix and for stimulation and promotion of bone remodeling. PURPOSE: The study was construed with the aim of histomorphometric evaluation of bone stimulation generated by different microthread designed implants in enhancing osseointegration, and to assess the pattern of stress dissipation through a two-dimensional finite element analysis...
April 2018: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28987224/controversies-in-traditional-oral-and-maxillofacial-reconstruction
#10
REVIEW
John S Vorrasi, Antonia Kolokythas
Traditional reconstruction of the head and neck and significantly evolved over the last 20 to 30 years with advances in microvascular surgery, biologic materials such as bone morphogenic protein, and dental implant predictability. Earlier and more definitive reconstruction can now be achieved with combining therapies, allowing patients immediate restoration of function and improved cosmetics. Antiresorptive medications, such as Denosumab and bisphosphonates, have complicated bony reconstruction treatments with altered biology and less-predictable results...
November 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/28645663/failure-torque-of-ceramic-neck-titanium-implant
#11
Waleed Elshahawy, Raed Ajlouni, Khaldoun Ajlouni, Abdelfattah Sadakah
STATEMENT OF PROBLEM: Dental implants are typically made of titanium. However, with the current systems on the market, the implant neck often shows through the gingival tissues as a black or dark gray line and/or as a grayish discoloration of the peri-implant soft tissue. PURPOSE: The purpose of this in vitro study was to test a new implant design. The key component of this design is the ceramic shell that covers the polished collar of the tissue-level titanium implant and masks its dark color to mimic natural dentition...
March 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28453004/implant-utilization-and-time-to-prosthetic-rehabilitation-in-conventional-and-advanced-fibular-free-flap-reconstruction-of-the-maxilla-and-mandible
#12
Richelle Chuka, Wael Abdullah, Jana Rieger, Suresh Nayar, Hadi Seikaly, Martin Osswald, Johan Wolfaardt
PURPOSE: Precisely designed jaw reconstruction rehabilitation (JRR) is important to the integrity of the jaw structure and oral functions. Advanced three-dimensional (3D) digital surgical design and simulation (SDS) techniques have the potential to reduce time to reconstructive and dental treatment completion, thereby promoting early functional oral rehabilitation. This study investigated the use of SDS in JRR procedures. MATERIALS AND METHODS: A retrospective chart review was conducted on adult head and neck tumor (HNT) participants who completed JRR treatment with a fibular free flap (FFF) reconstruction...
May 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28365383/a-comparative-study-of-the-effectiveness-of-early-and-delayed-loading-of-short-tissue-level-dental-implants-with-hydrophilic-surfaces-placed-in-the-posterior-section-of-the-mandible-a-preliminary-study
#13
COMPARATIVE STUDY
Arkadiusz Makowiecki, Ute Botzenhart, Julia Seeliger, Friedhelm Heinemann, Peter Biocev, Marzena Dominiak
The objective of the present study was to compare the primary and secondary stability of tissue-level short dental titanium implants with polished necks and hydrophilic surfaces of two different designs and manufacturers. The first implant system used (SPI® ELEMENT RC INICELL titanium implants, Thommen Medical AG, Grenchen, Switzerland), allowed functional loading 6 weeks after its placement, whereas the second implant system (RN SLActiv® tissue-level titanium implants, Straumann GmbH, Fribourg, Germany), was loaded after 15 weeks...
July 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28326723/-current-dental-implant-design-and-its-clinical-importance
#14
Lin Ye
The development of clinical implant dentistry was intensively affected by dental implant design improvement and innovation, which brought about new concept, even milestone-like changes of clinical protocol. The current improvements of dental implant design and their clinical importance could be highlighted as followings: 1) The implant apical design influences the implant preliminary stability in immediate implant. The apical 3-5 mm design of implant makes implant stable in immediate implant, because this part would be screwed into alveolar bone through fresh socket, the other part of implant could not be tightly screwed in the socket because of smaller implant diameter...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28261906/randomized-controlled-clinical-trial-comparing-two-dental-implants-with-different-neck-configurations
#15
Ignacio Sanz-Martín, Ignacio Sanz-Sánchez, Fernando Noguerol, Susy Cok, Alberto Ortiz-Vigón, Mariano Sanz
BACKGROUND: Peri-implant bone levels can vary according to the implant neck macro-design and the implant-abutment interface. PURPOSE: To compare the changes in soft and hard tissues when using a one-piece implant with a machined collar (TG) versus a two-piece implant with a progressive platform widening and a platform switching connection (SP). MATERIAL AND METHODS: Partially edentulous patients willing to receive one or two implants in the posterior maxilla or mandible were randomized to the control (TG) or to the test group (SP)...
June 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/27870921/microthreaded-implants-and-crestal-bone-loss-a-systematic-review
#16
Ahmad M Al-Thobity, Ahmad Kutkut, Khalid Almas
This systematic literature review investigated the effect of microthreaded-neck dental implants on crestal bone loss. Using the participants, interventions, comparison groups, outcomes, and study design (PICO) system, we addressed the following focused question: Do microthreaded-neck dental implants positively affect the crestal bone level around dental implants? We searched 3 electronic databases to find articles published between January 1995 and June 2016 that contained any combination of the following keywords: dental implant, microthread, microthreaded, crestal bone level, crestal bone loss, and alveolar bone level...
April 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/27646798/marginal-bone-loss-around-dental-implants-with-and-without-microthreads-in-the-neck-a-systematic-review-and-meta-analysis
#17
REVIEW
Wenzhi Niu, Penglai Wang, Shaoyue Zhu, Zongxiang Liu, Ping Ji
STATEMENT OF PROBLEM: Whether microthreads in the crestal portion can reduce the amount of marginal bone loss (MBL) around implants has not yet been determined. PURPOSE: The purpose of this systematic review was to investigate the marginal bone loss around dental implants with and without microthreads in the neck. MATERIAL AND METHODS: This review was based on the PRISMA guidelines. An electronic search with no restrictions on language was performed from inception to August 19, 2015, in PubMed, Cochrane Central Register of Controlled Trials, EMBASE, Web of Sciences, and AMED (Ovid) databases...
January 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27493957/evaluation-of-implant-collar-surfaces-for-marginal-bone-loss-a-systematic-review-and-meta-analysis
#18
REVIEW
Roodabeh Koodaryan, Ali Hafezeqoran
Background. It is important to understand the influence of different collar designs on peri-implant marginal bone loss, especially in the critical area. Objectives. The purpose of the present systematic review and meta-analysis was to compare dental implants with different collar surfaces, evaluating marginal bone loss and survival rates of implants. Methods. Eligibility criteria included clinical human studies, randomized controlled trials, and prospective and retrospective studies, which evaluated dental implants with different collar surface in the same study...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27314118/dental-implants-with-internal-versus-external-connections-5-year-post-loading-results-from-a-pragmatic-multicenter-randomised-controlled-trial
#19
RANDOMIZED CONTROLLED TRIAL
Marco Esposito, Hassan Maghaireh, Roberto Pistilli, Maria Gabriella Grusovin, Sang Taek Lee, Anna Trullenque-Eriksson, Federico Gualini
PURPOSE: To evaluate advantages and disadvantages of identical implants with internal or external connections. MATERIALS AND METHODS: One hundred and twenty patients with any type of edentulism (single tooth, partial and total edentulism), requiring one implant-supported prosthesis were randomly allocated in two equal groups to receive either implants with an external connection (EC) or implants of the same type with an internal connection (IC) (EZ Plus, MegaGen Implant, Gyeongbuk, South Korea), at four centres...
2016: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/26406045/application-of-uniform-design-to-improve-dental-implant-system
#20
Yung-Chang Cheng, Deng-Huei Lin, Cho-Pei Jiang
This paper introduces the application of uniform experimental design to improve dental implant systems subjected to dynamic loads. The dynamic micromotion of the Zimmer dental implant system is calculated and illustrated by explicit dynamic finite element analysis. Endogenous and exogenous factors influence the success rate of dental implant systems. Endogenous factors include: bone density, cortical bone thickness and osseointegration. Exogenous factors include: thread pitch, thread depth, diameter of implant neck and body size...
2015: Bio-medical Materials and Engineering
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