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https://www.readbyqxmd.com/read/28721995/comparative-evaluation-of-laser-microtextured-implant-versus-machined-collar-implant-for-soft-and-hard-tissue-attachment-a-clinical-and-radiological-study
#1
Saroj Kumar Rath, Manab Kosala, Ankit Gupta
BACKGROUND: Various mechanical modifications in the collar region of endosseous implants is a challenge for better performance and osseointegration. Here is a comparative evaluation being carried out to find out the effect of the machined collar (MC) and Laser-Lok (LL)-modified titanium implants on the success of implants being commonly advocated in partially edentulous among serving personnel and their families. MATERIALS AND METHODS: Twenty-four patients with appropriate inclusion and exclusion criteria were selected for placement of Biohorizons MC and LL implants in 12 cases each...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28720339/in%C3%A2-vitro-fit-of-cad-cam-complete-arch-screw-retained-titanium-and-zirconia-implant-prostheses-fabricated-on-4-implants
#2
Hadi Al-Meraikhi, Burak Yilmaz, Edwin McGlumphy, William Brantley, William M Johnston
STATEMENT OF PROBLEM: Computer-aided designed and computer-aided manufactured (CAD-CAM) titanium and zirconia implant-supported fixed implant prostheses on 4 implants have become popular. The precision and accuracy of their interface fit has not been widely researched. PURPOSE: The purpose of this in vitro study was to compare the marginal fit of zirconia and titanium implant-supported screw-retained CAD-CAM complete fixed dental prostheses (CFDP) fit with a standardized cast simulating the all-on-4 implant distribution...
July 15, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28719569/stress-analysis-of-zygomatic-implants-on-the-augmented-maxillary-sinus-is-it-necessary-to-graft
#3
Süleyman Kaman, Fethi Atıl, Umut Tekin, Ozkan Ozgul, Mustafa Ercument Önder, Seda Yılmaz, Hamiyet Gungor, Ismail Doruk Kocyigit
PURPOSE: Zygomatic implants are becoming an ideal therapy with advanced implant-supported prosthetic treatment for the posterior atrophic maxilla. The purpose of this study is to examine the quantity and distribution of stress, which was caused by zygomatic implants placed using intrasinus method with or without augmentation to the atrophic posterior maxilla. MATERIALS & METHODS: In this study, 3-dimensional atrophic edentulous maxilla models with and without sinus augmentation are designed with computer-aided programs...
July 17, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28713105/evaluation-of-the-current-techniques-and-introduction-of-a-novel-approach-for-estimating-maxillary-anterior-teeth-dimensions
#4
Mohammed E Sayed, Amit Porwal, Nida A Al-Faraj, Amal M Bajonaid, Hassan A Sumayli
INTRODUCTION: Several techniques and methods have been proposed to estimate the anterior teeth dimensions in edentulous patients. However, this procedure remains challenging especially when preextraction records are not available. Therefore, the purpose of this study is to evaluate some of the existing extraoral and intraoral methods for estimation of anterior tooth dimensions and to propose a novel method for estimation of central incisor width (CIW) and length (CIL) for Saudi population...
July 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28710652/comparison-between-inflammation-related-markers-in-peri-implant-crevicular-fluid-and-clinical-parameters-during-osseointegration-in-edentulous-jaws
#5
Amália M Bielemann, Raissa M Marcello-Machado, Fábio Renato Manzolli Leite, Frederico Canato Martinho, Otacílio Luiz Chagas-Júnior, Altair Antoninha Del Bel Cury, Fernanda Faot
OBJECTIVES: The aim of this study is to improve the understanding of interleukin mechanisms during osseointegration to enhance the monitoring of implant failure and success. Clinical parameters, implant stability, and cytokine levels in peri-implant crevicular fluid (PICF) during early bone healing after implant placement were investigated. MATERIAL AND METHODS: Sixty narrow implants were placed in mandible anterior region of 30 edentulous patients (67.23 ± 7...
July 14, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28709680/patient-satisfaction-with-laser-sintered-removable-partial-dentures-a-crossover-pilot-clinical-trial
#6
Balqees Almufleh, Elham Emami, Omar Alageel, Fabiana de Melo, Francois Seng, Eric Caron, Samer Abi Nader, Ashwaq Al-Hashedi, Rubens Albuquerque, Jocelyne Feine, Faleh Tamimi
STATEMENT OF PROBLEM: Clinical data regarding newly introduced laser-sintered removable partial dentures (RPDs) are needed before this technique can be recommended. Currently, only a few clinical reports have been published, with no clinical studies. PURPOSE: This clinical trial compared short-term satisfaction in patients wearing RPDs fabricated with conventional or computer-aided design and computer-aided manufacturing (CAD-CAM) laser-sintering technology. MATERIAL AND METHODS: Twelve participants with partial edentulism were enrolled in this pilot crossover double-blinded clinical trial...
July 11, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28709674/accuracy-of-cad-cam-fabricated-removable-partial-dentures
#7
Christin Arnold, Jeremias Hey, Ramona Schweyen, Jürgen M Setz
STATEMENT OF PROBLEM: The conventional fabrication of removable partial dentures (RPDs) is a complex, error-prone, time-consuming, and expensive process. The use of computer-aided design and computer-aided manufacturing (CAD-CAM) techniques, especially rapid prototyping, promises a more effective method for fabricating RPD frameworks. PURPOSE: The purpose of this in vitro study was to evaluate the fit of RPD clasps fabricated by means of 4 different CAD-CAM-systems and to compare those fittings with that of the conventional lost-wax casting technique (LWT)...
July 11, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28709576/there-are-probably-no-differences-in%C3%A2-the-oral-health-related-quality-of-life-of-partially-edentulous-patients-who-received-oral-rehabilitation-with-shortened-dental-arch-versus-conventional-treatment
#8
Romina Brignardello-Petersen
No abstract text is available yet for this article.
June 23, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28709037/finite-element-analysis-and-clinical-complications-in-mandibular-implant-overdentures-opposing-maxillary-dentures
#9
Tameem Khuder, Norsiah Yunus, Eshamsul Sulaiman, Ali Dabbagh
Denture fracture is a common clinical complication caused by improper material selection, design, or fabrication technique. This study aimed to investigate the effect of two attachment systems on fracture risk of the implant-overdentures (IOD) via finite element analysis (FEA), using the force distributions obtained from patients' occlusal analyses and to compare the obtained results with the clinical complications associated with these attachments. A three-dimensional jaw model comprised of the edentulous bones was constructed...
July 4, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28708922/assessment-of-long-term-survival-of-immediately-loaded-tilted-implants-supporting-a-maxillary-full-arch-fixed-prosthesis
#10
Tiziano Testori, Fabio Galli, Luca Fumagalli, Matteo Capelli, Francesco Zuffetti, Matteo Deflorian, Andrea Parenti, Massimo Del Fabbro
PURPOSE: To analyze the long-term outcome of fixed prostheses supported by six implants, two of which were tilted, placed in the maxilla and immediately loaded more than 10 years earlier. MATERIALS AND METHODS: A retrospective review of implants placed between May 29, 2003 and February 12, 2005 and used to support immediately loaded fixed dental prostheses in the maxilla was conducted. The features of failed implants were analyzed. In the most recent follow-up visits, survival of individual implants and prostheses was verified, and modified Plaque Index as well as modified Sulcular Bleeding Index were assessed...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708921/outcomes-assessment-of-treating-completely-edentulous-patients-with-a-fixed-implant-supported-profile-prosthesis-utilizing-a-graftless-approach-part-1-clinically-related-outcomes
#11
Fawaz Alzoubi, Edmond Bedrossian, Allen Wong, Douglas Farrell, Chan Park, Thomas Indresano
PURPOSE: To assess outcomes of treating completely edentulous patients with a fixed implant-supported profile prosthesis utilizing a graftless approach for the maxilla and for the mandible, with emphasis on clinically related outcomes, specifically implant and prosthesis survival. MATERIALS AND METHODS: This was a retrospective study with the following inclusion criteria: completely edentulous patients rehabilitated with a fixed implant-supported profile denture utilizing a graftless approach...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708920/complications-and-clinical-considerations-of-the-implant-retained-zirconia-complete-arch-prosthesis-with-various-opposing-dentitions
#12
Jorge Gonzalez, Robert G Triplett
PURPOSE: To evaluate the performance of the implant-retained zirconia complete-arch prosthesis with various opposing dentitions. MATERIALS AND METHODS: The 40 patients included in this retrospective case series study were treated with one or two implant-retained zirconia complete-arch prostheses (ZIRCAP) using the Zirkonzahn protocol. Prettau zirconia frames were created with strategic cutbacks in the structure to extend zirconia incisal coverage of the esthetic anterior sextants and complete monolithic zirconia in the molar areas; subsequent layers of porcelain were applied to nonfunctional and esthetic areas...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708913/effect-of-attachment-type-on-denture-strain-in-maxillary-implant-overdentures-part-1-overdenture-with-palate
#13
Toshihito Takahashi, Tomoya Gonda, Yoshinobu Maeda
PURPOSE: This study examined the effects of attachments on strain in maxillary implant overdentures supported by two or four implants. MATERIALS AND METHODS: A maxillary edentulous model with implants inserted into anterior, premolar, and molar areas was fabricated, and three types of unsplinted attachments-ball, locator, and magnet-were set on the implants distributed under various conditions. Maxillary experimental dentures were fabricated, and two strain gauges were attached at the anterior midline on the labial and palatal sides...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708910/influence-of-the-posterior-mandible-ridge-morphology-on-virtual-implant-planning
#14
German O Gallucci, Shirin Khoynezhad, Alfa I Yansane, Jacob Taylor, Daniel Buser, Bernard Friedland
PURPOSE: The purpose of this study was to examine the anatomy of the mandibular posterior region to develop an anatomical categorization for implant-prosthodontic planning. MATERIALS AND METHODS: Using cone beam computed tomography scans, 313 cross-sectional views of edentulous posterior mandibular sites were evaluated with respect to the anatomical ridge morphology. Virtual implant planning was performed, and the need for bone grafting was assessed. The level of complexity for planning implants in those positions was assessed...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28705728/single-mandibular-implant-study-smis-masticatory-performance-results-from-a-randomized-clinical-trial-using-two-different-loading-protocols
#15
Nicole Passia, Samir Abou-Ayash, Daniel R Reissmann, Elfriede Fritzer, Stefanie Kappel, Ioannis Konstantinidis, Valerie V Koenigsmarck, Torsten Mundt, Meike Stiesch, Stefan Wolfart, Shurouk Ali, Matthias Kern
OBJECTIVES: This multi-centre randomized controlled trial was conducted to investigate, whether the masticatory performance of elderly edentulous patients is improved by placement of a single implant in the midline of the edentulous mandible, and whether improvements differ with respect to the loading protocol, i.e., implant is loaded either directly or three months later after second stage surgery. METHODS: Edentulous seniors aged 60-89 years were screened according to inclusion and exclusion criteria and 163 underwent implant placement...
July 10, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28697207/reliability-of-a-cad-cam-surgical-guide-for-implant-placement-an-in-vitro-comparison-of-surgeons-experience-levels-and-implant-sites
#16
Su-Jung Park, Richard Leesungbok, Taixing Cui, Suk Won Lee, Su-Jin Ahn
PURPOSE: This in vitro study evaluated the reliability of a surgical guide with regard to different levels of operator surgical experience and implant site. MATERIALS AND METHODS: A stereolithographic surgical guide for epoxy resin mandibles with three edentulous molar sites was produced using a computer-aided design/computer-assisted manufacture (CAD/CAM) system. Two surgeons with and two surgeons without implant surgery experience placed implants in a model either using or not using the CAD/CAM surgical guide...
July 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28697202/a-randomized-crossover-trial-comparing-patient-preference-for-mandibular-complete-dentures-made-with-two-different-techniques-a-short-term-follow-up
#17
Greta Avm Geerts
PURPOSE: The objective of this trial was to compare short-term patient preference for two mandibular complete denture (CD) fabrication techniques: neutral zone (NZ) and conventional (CV). MATERIALS AND METHODS: A prospective, within-subject, randomized crossover trial was performed on a sample of 37 edentulous patients with complete denture experience. Two new sets of CDs were made for each patient, one set with a CV and one with a NZ mandibular denture. After consecutively wearing each set for at least 2 months after the last adjustment visit, patients indicated their preference (CV, NZ, or none)...
July 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28697200/economic-evaluation-of-implant-supported-overdentures-in-edentulous-patients-a-systematic-review
#18
Qi Zhang, Xin Jin, Mengliu Yu, Guoming Ou, Hiroyuki Matsui, Xing Liang, Keiichi Sasaki
PURPOSE: Edentulous patients benefit significantly from implant-supported overdenture prostheses. The purpose of this systematic review was to evaluate the cost-effectiveness of implant-supported overdentures (IODs) for edentulous patients. MATERIALS AND METHODS: The search was limited to studies written in English and included an electronic and manual search through MEDLINE (Ovid, 1946 to November 2015), Embase (Ovid, 1966 to November 2015), Cochrane Central Register of Controlled Trials (CENTRAL) (to November 2015), and PubMed (to November 2015)...
July 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28696960/sinus-floor-augmentation-with-ambient-blood-and-an-absorbable-collagen-sponge-a-prospective-pilot-clinical-study
#19
Antoine Berberi, Nabih Nader, Rita Bou Assaf, Hussein Fayyad-Kazan, Saad Khairalah, Nabil Moukarzel
PURPOSE: The aim of this study was to clinically, radiologically, and histologically evaluate a sinus augmentation technique using a resorbable collagen sponge to maintain space between the Schneiderian membrane and the residual crestal bone. MATERIALS AND METHODS: Patients with partially edentulous maxillae were clinically and radiographically evaluated for implant placement. A total of 10 consecutive patients with the bone height for implant placement (<4.0 mm) were enrolled in the study...
July 10, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28690926/razanandrongobe-sakalavae-a-gigantic-mesoeucrocodylian-from-the-middle-jurassic-of-madagascar-is-the-oldest-known-notosuchian
#20
Cristiano Dal Sasso, Giovanni Pasini, Guillaume Fleury, Simone Maganuco
Razanandrongobe sakalavae Maganuco, Dal Sasso & Pasini, 2006 is a large predatory archosaur from the Middle Jurassic (Bathonian) of the Mahajanga Basin, NW Madagascar. It was diagnosed on the basis of teeth and a fragmentary maxilla, but its affinities were uncertain. Here we describe new cranial remains (above all, an almost complete right premaxilla and a caudally incomplete left dentary) that greatly improve our knowledge on this enigmatic species and reveal its anatomy to be crocodylomorph. The right premaxilla indicates that the rostrum was deep, wide, and not pointed; it bears five teeth that are sub-vertical and just slightly curved lingually; the mesial teeth are U-shaped in cross-section and have serrated carinae on the lingual side; the aperturae nasi osseae (external bony nares) are confluent and face rostrally; and there is no lateral groove at the premaxillomaxillary suture for reception of a hypertrophied lower caniniform tooth...
2017: PeerJ
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