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Endosseous implant

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https://www.readbyqxmd.com/read/28327417/appositional-bone-graft-tunneled-technical-note
#1
Roberto Almeida de Azevedo, Felipe Seoane Matos, Leonardo Morais Godoy Figueiredo
INTRODUCTION: A satisfactory positioning of the dental implants is very important in the cosmetic and functional outcome in this treatment for edentulous. Insertion of an endosseous implant in the correct positioning requires sufficient bone volume. Therefore, bone-grafting procedures are becoming increasingly common, especially for the augmentation of horizontally deficient ridges. PRESENTATION OF CASE: Many patients have been treated with this technique of appositional Bone Graft Tunneled at our clinic since 2005...
February 20, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28319535/validation-of-therapeutic-anatomy-oriented-classification-in-endosseous-dental-implant-treatment-a-pilot-study
#2
Marius Kubilius, Yagmur Deniz Ilarslan, Tolga F Tözüm, Hom-Lay Wang, Ričardas Kubilius, Gintaras Juodzbalys
BACKGROUND: The purpose of the study was to validate a newly proposed therapeutic anatomically based clinical and radiological classification for dental implant treatment. METHODS: Eighty-one patients with at least 1 edentulous jaw segment (EJS) from 2 dental clinics were included in this study. Both clinical and radiological parameters were assessed in aesthetic and nonaesthetic zones. The data were then compared at preoperative, intraoperative, and postoperative (subdivided into early and late stage) study stages...
April 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28304382/inhibition-of-cathepsin-k-promotes-osseointegration-of-titanium-implants-in-ovariectomised-rats
#3
Chun Yi, Ke-Yi Hao, Ting Ma, Ye Lin, Xi-Yuan Ge, Yu Zhang
The bone mineral deficiency in osteoporosis poses a threat to the long-term outcomes of endosseous implants. The inhibitors of cathepsin K (CatK) significantly affect bone turnover, bone mineral density (BMD) and bone strength in the patients with osteoporosis. Therefore, we hypothesised that the application of a CatK inhibitor (CatKI) could increase the osseointegration of endosseous implants under osteoporotic conditions. Odanacatib (ODN), a highly selective CatKI, was chosen as the experimental drug. Sixteen rats were randomised into 4 groups: sham, ovariectomy (OVX) with vehicle, OVX with low-dose ODN (5 mg/kg) and OVX with high-dose ODN (30 mg/kg)...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28280731/early-bone-formation-around-immediately-loaded-transitional-implants-inserted-in-the-human-posterior-maxilla-the-effects-of-fixture-design-and-surface
#4
RANDOMIZED CONTROLLED TRIAL
Carlo Mangano, Jamil Awad Shibli, Jefferson Trabach Pires, Giuseppe Luongo, Adriano Piattelli, Giovanna Iezzi
Aim. To evaluate the effects of fixture design and surface on the early bone formation around immediately loaded implants inserted in the human posterior maxilla. Materials and Methods. Ten totally edentulous subjects received two transitional implants: one tapered implant with knife-edge threads/nanostructured calcium-incorporated surface (test: Anyridge®, Megagen, Gyeongbuk, South Korea) and one cylindrical implant with self-tapping threads/sandblasted surface (control: EZPlus®, Megagen). The implants were placed according to a split-mouth design and immediately loaded to support an interim complete denture; after 8 weeks, they were removed for histologic/histomorphometric analysis...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28265781/trabecular-deformations-during-screw-pull-out-a-micro-ct-study-of-lapine-bone
#5
Thomas Joffre, Per Isaksson, Philip Procter, Cecilia Persson
The mechanical fixation of endosseous implants, such as screws, in trabecular bone is challenging because of the complex porous microstructure. Development of new screw designs to improve fracture fixation, especially in high-porosity osteoporotic bone, requires a profound understanding of how the structural system implant/trabeculae interacts when it is subjected to mechanical load. In this study, pull-out tests of screw implants were performed. Screws were first inserted into the trabecular bone of rabbit femurs and then pulled out from the bone inside a computational tomography scanner...
March 6, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28258795/additively-manufactured-sub-periosteal-jaw-implants
#6
M Y Mommaerts
Severe bone atrophy jeopardizes the success of endosseous implants. This technical note aims to present the innovative concept of additively manufactured sub-periosteal jaw implants (AMSJIs). Digital datasets of the patient's jaws and wax trial in occlusion are used to segment the bone and dental arches, for the design of a sub-periosteal frame and abutments in the optimal location related to the dental arch and for the design of the suprastructure. The implants and suprastructure are three-dimensionally (3D) printed in titanium alloy...
February 28, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28254262/computed-tomography-and-anatomical-measurements-of-critical-sites-for-endosseous-implants-in-the-pterygomaxillary-region-a-cadaveric-study
#7
Y Uchida, Y Yamashita, A Danjo, K Shibata, A Kuraoka
The aim of this study was to obtain computed tomography (CT) and physical measurements of the pterygomaxillary region to determine the anatomical and radiographic landmarks that clinicians need for pterygoid implant placement. Seventy-eight hemi-heads with an atrophic posterior maxilla from 46 cadaveric samples were measured using CT. Twenty-one hemi-heads were selected randomly for physical measurements. CT measurements showed that the mean and minimum distance between the maxillary tuberosity point (MT) and the most lateral lowest point of the pterygomaxillary fissure (PF) were 18...
February 26, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28244429/tin-x-o-y-coatings-facilitate-the-initial-adhesion-of-osteoblasts-to-create-a-suitable-environment-for-their-proliferation-and-the-recruitment-of-endothelial-cells
#8
M Moussa, O Banakh, B Wehrle-Haller, P Fontana, S Scherrer, M Cattani, A Wiskott, S Durual
Titanium-nitride-oxide coatings (TiN x O y ) improve osseointegration of endosseous implants. The exact mechanisms by which these effects are mediated are poorly understood except for an increase of osteoblast proliferation while a high degree of differentiation is maintained. One hypothesis holds that TiN x O y facilitates the initial spreading and adhesion of the osteoblasts. The aim of this work was to investigate the molecular mechanisms of osteoblast adhesion on TiN x O y as compared to microrough titanium SLA...
February 28, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28218025/dental-implants-and-incisor-bridge-placement-in-a-dog
#9
Rocco E Mele, Anthony Caiafa, Gregori M Kurtzman
Veterinary dentistry has tended to follow the trends and advancements in the human dental field. As for any procedure performed on a patient, whether human or animal, an informed decision is based on the available evidence regarding treatment options. This is certainly true for the more involved treatments in veterinary dentistry which can include the disciplines of endodontics and dental implantology. A number of published case reports have been accepted by the specialty that endodontic therapy is indeed a predictable and a valuable service that can be offered to pet owners...
December 2016: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28216308/craniofacial-implants-at-a-single-centre-2005-2015-retrospective-review-of-451-implants
#10
R Elledge, J Chaggar, N Knapp, T Martin, N White, D Evriviades, S Edmondson, S Parmar
Craniofacial endosseous implants are regularly used to support prostheses in the rehabilitation of complex defects, but reported success rates vary. To review our own clinical practice over 10 years, and particularly to examine the impact of radiotherapy and the timing of placement on the survival of implants, we retrospectively audited the records for all patients who had endosseous implants for prosthetic rehabilitation in our unit between 2005 and 2015. We reviewed 167 records, which gave 451 implants, of which, 222 (49%) were auricular, 98 (22%) nasal, and 131 (29%) orbital...
February 16, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28184162/synergistic-effect-of-nanotopography-and-bioactive-ions-on-peri-implant-bone-response
#11
Yingmin Su, Satoshi Komasa, Peiqi Li, Mariko Nishizaki, Luyuan Chen, Chisato Terada, Shigeki Yoshimine, Hiroshi Nishizaki, Joji Okazaki
Both bioactive ion chemistry and nanoscale surface modifications are beneficial for enhanced osseointegration of endosseous implants. In this study, a facile synthesis approach to the incorporation of bioactive Ca(2+) ions into the interlayers of nanoporous structures (Ca-nano) formed on a Ti6Al4V alloy surface was developed by sequential chemical and heat treatments. Samples with a machined surface and an Na(+) ion-incorporated nanoporous surface (Na-nano) fabricated by concentrated alkali and heat treatment were used in parallel for comparison...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28182765/rapamycin-sodium-hyaluronate-binding-on-nano-hydroxyapatite-coated-titanium-surface-improves-mc3t3-e1-osteogenesis
#12
Chao Liu, Jian Yong Dong, Lin Lin Yue, Shao Hua Liu, Yi Wan, Hong Liu, Wan Ye Tan, Qian Qian Guo, Dong Zhang
Endosseous titanium (Ti) implant failure due to poor biocompatibility of implant surface remains a major problem for osseointegration. Improving the topography of Ti surface may enhance osseointegration, however, the mechanism remains unknown. To investigate the effect of modified Ti surface on osteogenesis, we loaded rapamycin (RA) onto nano-hydroxyapatite (HAp) coated Ti surface which was acid-etched, alkali-heated and HAp coated sequentially. Sodium hyaluronate (SH) was employed as an intermediate layer for the load of RA, and a steady release rate of RA was maintained...
2017: PloS One
https://www.readbyqxmd.com/read/28154996/early-bone-formation-around-immediately-loaded-implants-with-nanostructured-calcium-incorporated-and-machined-surface-a-randomized-controlled-histologic-and-histomorphometric-study-in-the-human-posterior-maxilla
#13
Francesco Guido Mangano, Giovanna Iezzi, Jamil Awad Shibli, Jefferson Trabach Pires, Giuseppe Luongo, Adriano Piattelli, Carlo Mangano
OBJECTIVE: The aim of this randomized, controlled histologic/histomorphometric study was to compare the early bone formation around immediately loaded implants with nanostructured calcium-incorporated (NCI) and machined (MA) surface, placed in the human posterior maxilla. MATERIALS AND METHODS: Fifteen fully edentulous patients (six males; nine females; mean age 57.9 ± 6.7 years) were selected for this study. Each patient was installed with two temporary transmucosal implants, with different surfaces: one NCI (test) and one MA (control) implant...
February 2, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28095519/a-clinical-study-assessing-the-influence-of-anodized-titanium-and-zirconium-dioxide-abutments-and-peri-implant-soft-tissue-thickness-on-the-optical-outcome-of-implant-supported-lithium-disilicate-single-crowns
#14
RANDOMIZED CONTROLLED TRIAL
Francisco Martínez-Rus, Marta Prieto, María P Salido, Cristina Madrigal, Mutlu Özcan, Guillermo Pradíes
PURPOSE: To assess the influence of anodized titanium and zirconium dioxide abutments and peri-implant soft tissue thickness on the optical outcome of implant-supported lithium disilicate single crowns. MATERIALS AND METHODS: Twenty patients with a missing maxillary single incisor, canine, or first premolar received an endosseous implant after a two-stage surgery protocol. After healing and soft tissue conditioning, peri-implant soft tissues were reproduced in the impression, and the thickness was measured...
January 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28095518/long-term-results-of-peri-implant-conditions-in-periodontally-compromised-patients-following-lateral-bone-augmentation
#15
Philip L Keeve, Fouad Khoury
PURPOSE: The aim of this retrospective study was to compare long-term (≥ 5 years) outcomes of implants placed in patients treated for chronic periodontitis versus those placed in periodontally healthy patients. In both groups, the implants were placed in alveolar ridges that were laterally augmented with autogenous bone block grafts using a split bone block technique. MATERIALS AND METHODS: Two hundred ninety-two patients were screened in the course of supportive periodontal treatment examinations...
January 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28012063/the-influence-of-implantoplasty-on-the-diameter-chemical-surface-composition-and-biocompatibility-of-titanium-implants
#16
Frank Schwarz, Gordon John, Jürgen Becker
OBJECTIVES: The objective of the study was to assess the influence of implantoplasty (IP) on the diameter, chemical surface composition, and biocompatibility of titanium implants in vitro. MATERIAL AND METHODS: Twenty soft tissue-level (TL; machined transmucosal-M and rough endosseous part-SLA) and 20 bone-level (BL; SLA) implants were allocated to IP covering 3 or 6 mm of the structured surface (SLA) area. The samples were subjected to diameter, energy-dispersive X-ray spectroscopy (EDX), and cell viability (ginigval fibroblasts, 6 days) assessments...
December 24, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28000276/screw-retained-vs-cement-retained-implant-supported-fixed-dental-prosthesis
#17
REVIEW
Julia-Gabriela Wittneben, Tim Joda, Hans-Peter Weber, Urs Brägger
A fixed dental prosthesis can be secured to an endosseous implant via cementation (using a provisional or definitive cement) on an implant abutment that is screw retained to the implant or directly in the implant via screw retention. The clinical decision as to which retention system best suits the individual patient depends on several factors. The aim of this review is to present a detailed overview of the factors potentially influencing whether to choose screw retention or cement retention. These factors include the individual indication, advantages and disadvantages of the different retention mechanisms, the retention provided, retrievability, provisionalization, esthetics and clinical performance, including failures and complications...
February 2017: Periodontology 2000
https://www.readbyqxmd.com/read/27990510/mandibular-osteomyelitis-associated-with-dental-implants-a-case-series
#18
Gabriel Semel, Amir Wolff, Dekel Shilo, Sharon Akrish, Omri Emodi, Adi Rachmiel
PURPOSE: To present a series of rare and serious complications associated with endosseous implant therapy. MATERIALS AND METHODS: Five cases of mandibular osteomyelitis emerging in dental implant insertion sites are presented. In three cases, the clinical signs and symptoms of osteomyelitis occurred almost immediately following implant insertion. All cases occurred in patients with stable pre-existing medical conditions. Three of the patients were females and two were males, all of whom were in their sixth and seventh decades of life...
2016: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/27943627/osteopontin-deficiency-disturbs-direct-osteogenesis-in-the-process-of-achieving-osseointegration-following-immediate-placement-of-endosseous-implants
#19
Sanako Makishi, Kotaro Saito, Hayato Ohshima
BACKGROUND: The role of osteopontin (OPN) in the process of achieving osseointegration following implantation remains to be clarified. PURPOSE: This study aimed to analyze the healing patterns of the bone-implant interface after immediate placement of implants in the maxillae of 4-week-old Opn-knockout (KO) and wild-type (WT) mice. MATERIALS AND METHODS: After maxillary first molars were extracted, cavities were prepared with a drill and titanium implants blasted with ceramic abrasives containing hydroxyapatite/β-tricalcium phosphate were placed...
December 12, 2016: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/27891492/effect-of-magnetic-field-on-bone-healing-around-endosseous-implants-an-in-vivo-study
#20
Mahalakshmi Gujjalapudi, Chandrasekar Anam, Praveen Mamidi, Radha Chiluka, A Gautam Kumar, Ragini Bibinagar
INTRODUCTION: After implant placement, a stress-free healing period of 3-6 months is a pre-requisite to achieve good osseointegration. If this duration could be reduced, the patients would feel happier. Eventhough, immediate loading of implants is a clinically feasible concept; it is not possible in certain situations. Few studies have shown that Static magnetic field is useful to promote bone formation faster after the bone is wounded. AIM: This pilot study was intended to evaluate the tissue response after implant placement under the influence of magnetic field...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
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