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Dental implant connection

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https://www.readbyqxmd.com/read/27882311/retrospective-clinical-study-of-an-implant-with-a-sandblasted-large-grit-acid-etched-surface-and-internal-connection-analysis-of-short-term-success-rate-and-marginal-bone-loss
#1
Jae-Wang Lee, Jun Hyeong An, Sang-Hoon Park, Jong-Hyon Chong, Gwang-Seok Kim, JeongJoon Han, Seunggon Jung, Min-Suk Kook, Hee-Kyun Oh, Sun-Youl Ryu, Hong-Ju Park
BACKGROUND: The purpose of this retrospective study was to evaluate the clinical utility of an implant with a sandblasted, large-grit, acid-etched (SLA) surface and internal connection. METHODS: Six patients who received dental implants in the Department of Oral and Maxillofacial Surgery, Chonnam National University Dental Hospital, were analyzed by factors influencing the success rate and marginal bone loss. Factors included patient's age, sex, implant installation site, whether bone graft was done, type of bone graft materials, approaching method if sinus lift was done, and the size of the fixture...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27873018/soft-tissue-augmentation-around-osseointegrated-and-uncovered-dental-implants-a-systematic-review
#2
REVIEW
Renzo G Bassetti, Alexandra Stähli, Mario A Bassetti, Anton Sculean
OBJECTIVES: The aim was to compile the current knowledge about the efficacy of different soft tissue correction methods around osseointegrated, already uncovered and/or loaded (OU/L) implants with insufficient soft tissue conditions. Procedures to increase peri-implant keratinized mucosa (KM) width and/or soft tissue volume were considered. MATERIALS AND METHODS: Screening of two databases: MEDLINE (PubMed) and EMBASE (OVID), and manual search of articles were performed...
November 21, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27861666/internal-vs-external-connection-single-implants-a-retrospective-study-in-an-italian-population-treated-by-certified-prosthodontists
#3
Paolo Vigolo, Stefano Gracis, Fabio Carboncini, Sabrina Mutinelli
PURPOSE: The design of an implant connection that allows prosthetic suprastructures to be attached to implants has long been debated in the dental literature. The goal of this retrospective study was to evaluate the 5-year clinical results for a large number of single implants restored by certified prosthodontists in an attempt to establish whether different clinical outcomes could be detected for external- or internal-connection implants. MATERIALS AND METHODS: All single implants with internal or external connections inserted in 27 private dental practices from January 1, 2003 to December 31, 2007 were evaluated...
November 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27861648/fracture-resistance-of-straight-and-angulated-zirconia-implant-abutments-supporting-anterior-three-unit-lithium-disilicate-fixed-dental-prostheses
#4
Samah Saker, Sameh El-Shahat, Mohamed Ghazy
PURPOSE: The purpose of this study was to evaluate fracture resistance of straight and angulated zirconia implant abutments supporting anterior three-unit lithium disilicate fixed dental prostheses (FDPs). MATERIALS AND METHODS: Four different test groups (n = 8) representing anterior three-unit implant-supported all-ceramic FDPs were fabricated to fit an in vitro model with two implants. Groups 1 and 2 simulated a clinical situation with an ideal implant position for maxillary left central and right lateral incisors from a prosthetic point of view, which allowed for the use of a straight, prefabricated zirconia and titanium abutment...
November 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27859976/fatigue-failure-of-narrow-implants-with-different-implant-abutment-connection-designs
#5
Dimorvan Bordin, Lukasz Witek, Vinícius P Fardin, Estevam A Bonfante, Paulo G Coelho
PURPOSE: To evaluate the reliability of narrow diameter dental implants (NDIs) with similar macrogeometry and 3 implant-abutment connection designs. MATERIALS AND METHODS: Eighty-four NDIs (3.5 × 10 mm) were selected and divided into 4 groups (n = 21/group) according to implant-abutment connection design, as follows: EH - external hexagon, IH - internal hexagon, IC - internal conical, and IC-M - internal conical connected to a monolithic titanium abutment. Identical abutments were torqued to the implants, and standardized maxillary incisor crowns were cemented and subjected to step-stress accelerated life testing (SSALT) in water...
November 18, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/27751568/advanced-system-for-implant-stability-testing-asist
#6
L Westover, G Faulkner, W Hodgetts, D Raboud
This study presents the Advanced System for Implant Stability Testing (ASIST) which provides a non-invasive, quantitative measure of the stability of percutaneous implants used for craniofacial rehabilitation such as bone anchored hearing aids or dental implants. The ASIST uses an impact technique coupled with an analytical model which allows the measure to be independent of the system components. This paper presents a laboratory evaluation of the ASIST for the Oticon Medical Ponto and the Cochlear Baha Connect bone anchored hearing aid (BAHA) systems...
October 6, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27747637/peri-implant-mucosal-dehiscence-coverage-with-a-modified-semilunar-coronary-positioned-flap-in-posterior-maxilla-a-case-report
#7
Daisuke Ueno, Jayanetti Asiri Jayawardena, Takashi Kurokawa
Soft tissue dehiscence around dental implant has frequently been observed and it may lead to poor oral hygiene, especially around crowns that exhibit contours with prominent convexity. The present case demonstrates a peri-implant mucosal dehiscence coverage with modified semilunar coronary positioned flap (CPF) in #15 and 16. A semilunar partial-thickness incision was performed 7-10 mm apical from the facial gingival margin. Then, intrasulcular partial-thickness incision was tunneled to the semilunar incision...
December 2015: Int J Implant Dent
https://www.readbyqxmd.com/read/27746609/implant-assisted-removable-partial-denture-an-approach-to-switch-kennedy-class-i-to-kennedy-class-iii
#8
Arun Ramchandran, Kaushal Kishor Agrawal, Pooran Chand, Ramashanker, Raghuwar Dayal Singh, Anusar Gupta
The Kennedy Class I and II distal extension situation poses a challenge to the prosthodontist as it inherently possesses a lack of stability, which may be attributed to the difference in compressibility of the mucosa and the periodontal ligament surrounding the distal-most abutment tooth. This results in a rotational tendency of the prosthesis around the line connecting its terminal abutments. Placement of osseointegrated dental implants in the posterior edentulous regions, distal to the terminal abutment provides improved vertical support to the distal extension removable partial denture, effectively converting its intraoral performance from a Kennedy Class I to a Class III situation, thereby resulting in improved stability of the prosthesis and consequently, enhanced patient satisfaction...
October 2016: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/27740651/soft-tissue-volume-augmentation-using-connective-tissue-grafts-via-apical-pouch-technical-considerations-and-case-reports
#9
Paul P Lin, Lewis Claman, Hua-Hong Chien
The success of dental implant therapy in the esthetic zone requires not only functional osseointegration but also favorable esthetic results. The greatest challenge in the esthetic zone is to establish harmony, balance, and continuity of gingival form between implant restorations and the adjacent natural teeth. In the esthetic zone, a localized ridge defect or loss of a peri-implant papilla is common and can be corrected via soft tissue augmentation. This case report describes a novel surgical technique using connective tissue grafts via an apical pouch to increase soft tissue volume over an alveolar ridge defect or around natural teeth or implants in the maxillary anterior area...
November 2016: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/27723188/the-conometric-concept-definitive-fixed-lithium-disilicate-restorations-supported-by-conical-abutments
#10
Marco Degidi, Diego Nardi, Gianluca Sighinolfi, Adriano Piattelli
PURPOSE: The use of the conical coupling connection to support definitive restorations was evaluated in cases involving full acrylic resin or hybrid acrylic resin-composite prostheses. The aim of this study was to evaluate the performance of definitive fixed partial prostheses made with lithium disilicate and supported by coupling connection abutments and healed implants. MATERIALS AND METHODS: The prostheses were placed in the posterior regions of partially edentulous patients; 65 patients received fixed lithium disilicate restorations splinted with conical coupling connections to two implants...
October 10, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/27716970/soft-tissue-volume-augmentation-at-dental-implant-sites-using-a-volume-stable-three-dimensional-collagen-matrix-histologic-outcomes-of-a-preclinical-study
#11
Daniel S Thoma, Nadja Naenni, Goran I Benic, Christoph H F Hämmerle, Ronald E Jung
AIM: To test whether or not soft tissue augmentation with a collagen matrix (VCMX) leads to a similar increase in ridge width around dental implants compared to the use of an autogenous subepithelial connective tissue graft (SCTG). MATERIALS AND METHODS: In 12 dogs, immediate dental implants were placed with simultaneous guided bone regeneration. Three months later, soft tissue volume augmentation was performed by randomly allocating three treatment modalities to these sites (VCMX, SCTG, sham-operated group (control))...
October 7, 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/27692898/peri-implant-bone-loss-around-platform-switched-morse-taper-connection-implants-a-prospective-60-month-follow-up-study
#12
M Cassetta, A Driver, G Brandetti, S Calasso
The aim of this study was to measure the crestal bone level changes at 60 months of follow-up and to evaluate the influence of biologically relevant, anatomical, and implant-related variables. A prospective study design was used. STROBE guidelines were followed. A total of 576 implants were inserted in 270 patients needing an implant-supported, partial, fixed dental prosthesis or a single crown. Standardized peri-apical radiographs were obtained at 2 months (time of implant-abutment connection and prosthetic loading) and 60 months of follow-up...
September 28, 2016: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27680671/survival-and-failure-modes-platform-switching-for-internal-and-external-hexagon-cemented-fixed-dental-prostheses
#13
Rodolfo B Anchieta, Lucas S Machado, Ronaldo Hirata, Paulo G Coelho, Estevam A Bonfante
This study evaluated the probability of survival (reliability) of platform-switched fixed dental prostheses (FDPs) cemented on different implant-abutment connection designs. Eighty-four-three-unit FDPs (molar pontic) were cemented on abutments connected to two implants of external or internal hexagon connection. Four groups (n = 21 each) were established: external hexagon connection and regular platform (ERC); external hexagon connection and switched platform (ESC); internal hexagon and regular platform (IRC); and internal hexagon and switched platform (ISC)...
October 2016: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/27663677/implant-prosthetic-rehabilitation-of-hemimaxillectomy-defects-with-cad-cam-suprastructures
#14
Christian Mertens, Jose de San Jose Gonzalez, Christian Freudlsperger, Jens Bodem, Johannes Krisam, Jürgen Hoffmann, Michael Engel
BACKGROUND: Patients with hemimaxillectomy defects after tumor surgery can alternatively be rehabilitated with dental obturators or microvascular flaps. When general medical or oncologic conditions do not permit microvascular surgery, dental obturators are the only solution, yet retention for edentulous patients is often poor. The aim of this study was to evaluate whether CAD/CAM suprastructures supported by implants placed in both residual alveolar ridges and contralateral zygomatic bone could enhance obturator stability and improve functional outcomes...
November 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27632273/the-influence-of-crown-to-implant-ratio-on-short-implant-marginal-bone-loss
#15
Mariana Nunes, Ricardo Faria Almeida, Antonio Campos Felino, Paulo Malo, Miguel de Araújo Nobre
PURPOSE: There is a need for more studies evaluating the marginal bone loss (MBL) of rehabilitations in the posterior regions of extremely resorbed maxillae and mandibles supported by short-length dental implants with a high crown/implant ratio (C/I-R). The aim of this study was to evaluate the influence of the C/I-R in implants on MBL considering dental implants with 4 mm of width and 7 mm of length. MATERIALS AND METHODS: This retrospective cohort study included 59 patients (mean age of 52...
September 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27632268/a-double-blind-randomized-trial-comparing-implants-with-laser-microtextured-and-machined-collar-surfaces-microbiologic-and-clinical-results
#16
Renzo Guarnieri, Giorgio Rappelli, Matteo Piemontese, Maurizio Procaccini, Alessandro Quaranta
PURPOSE: The purpose of this study was to compare the clinical outcome of and determine the differences in periodonto-pathogenic microbiota around two types of implant collar surfaces: laser-microtextured (test) vs machined (control). MATERIALS AND METHODS: Seventeen patients (11 periodontally healthy, and 6 periodontally compromised) were selected to receive the two different implants, placed randomly, in two edentulous sites. Six months following the surgical placement of the dental implants, subgingival plaque samples were collected using paper points from the peri-implant sulcus and from the sulcus of an adjacent tooth...
September 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27632261/the-impact-of-force-transmission-on-narrow-body-dental-implants-made-of-commercially-pure-titanium-and-titanium-zirconia-alloy-with-a-conical-implant-abutment-connection-an-experimental-pilot-study
#17
Katja Nelson, Rainer Schmelzeisen, Thomas D Taylor, Simon Zabler, Wolfram Wiest, Tobias Fretwurst
PURPOSE: The purpose of this study was to visualize the mode and impact of force transmission in narrowdiameter implants with different implant-abutment designs and material properties and to quantify the displacement of the abutment. MATERIALS AND METHODS: Narrow-diameter implants from two manufacturers were examined: Astra 3.0-mm-diameter implants (Astra OsseoSpeed TX; n = 2) and Straumann Bone Level implants with a 3.3-mm diameter made of commercially pure titanium (cpTi) Gr...
September 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27632260/effect-of-the-coronal-wall-thickness-of-dental-implants-on-the-screw-joint-stability-in-the-internal-implant-abutment-connection
#18
Ji-Hye Lee, Yoon-Hyuk Huh, Chan-Jin Park, Lee-Ra Cho
PURPOSE: To evaluate the effect of implant coronal wall thickness on load-bearing capacity and screw joint stability. MATERIALS AND METHODS: Experimental implants were customized after investigation of the thinnest coronal wall thickness of commercially available implant systems with a regular platform diameter. Implants with four coronal wall thicknesses (0.2, 0.3, 0.4, and 0.5 mm) were fabricated. Three sets of tests were performed. The first set was a failure test to evaluate load-bearing capacity and elastic limit...
September 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27632257/the-survival-of-morse-cone-connection-implants-with-platform-switch
#19
Michele Cassetta, Alfonso Di Mambro, Matteo Giansanti, Giulia Brandetti
PURPOSE: The aim of this prospective clinical study was to evaluate the survival up to 5 years of Morse cone-connection implants with platform switch considering the influence of biologically relevant, anatomical, and stress-related variables. STROBE guidelines were followed. MATERIALS AND METHODS: Seven hundred forty-eight implants were inserted in 350 patients. Follow-up visits were scheduled at the time of stagetwo surgery (2 months later) and at 6, 12, 24, 36, and 60 months...
September 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27624089/in-vivo-electrical-application-on-titanium-implants-stimulating-bone-formation
#20
L M Bins-Ely, E B Cordero, J C M Souza, W Teughels, C A M Benfatti, R S Magini
BACKGROUND AND OBJECTIVE: The aim of the present in vivo study was to measure the bone implant contact area after electrical stimulation of dental implants. MATERIAL AND METHODS: Ninety titanium dental implants (6 mm × 11.5 mm) with a smooth surface were placed in six male Beagle dogs and then the implant-bone interfaces was assessed by histological analyses after 7 and 15 d. The 12-mo-old dogs, with a weight of 15 kg, were randomly divided into two groups based on the duration of bone healing: 7 and 15 d...
September 14, 2016: Journal of Periodontal Research
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