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https://www.readbyqxmd.com/read/28627358/long-term-changes-in-bone-height-after-mandibular-reconstruction-using-a-free-fibula-graft-in-an-elderly-population
#1
Kosuke Ishikawa, Yuhei Yamamoto, Hiroshi Furukawa, Yoichi Ohiro, Akira Satoh, Toshihiko Hayashi
PURPOSE: This study evaluated short-term and long-term changes in bone height after mandibular reconstruction using an osteotomized fibula graft, with the aim of identifying factors associated with atrophy of the graft in an elderly population. PATIENTS AND METHODS: This retrospective study involved patients who underwent mandibular reconstruction using a free vascularized fibula graft from 2005 through 2015 and had at least 12 months of follow-up. Postoperative panoramic radiographs were used to measure bone height at standardized locations on each segment of the graft at 1 year postoperatively and at later follow-up...
May 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28602825/comparative-evaluation-of-the-effectiveness-of-the-implantation-in-the-lateral-part-of-the-mandible-between-short-tissue-level-te-and-bone-level-bl-implant-systems
#2
Jakub Hadzik, Ute Botzenhart, Maciej Krawiec, Tomasz Gedrange, Friedhelm Heinemann, Andras Vegh, Marzena Dominiak
Short dental implants can be an alternative method of treatment to a vertical bone augmentation procedure at sites of reduced alveolar height. However, for successful treatment, an implant system that causes a minimal marginal bone loss (MBL) should be taken into consideration. The aim of the study has been to evaluate implantation effectiveness for bone level and tissue level short implants provided in lateral aspects of partially edentulous mandible and limited alveolar ridge height. The MBL and primary as well as secondary implant stability were determined in the study...
June 7, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28573264/effects-of-combining-insulin-like-growth-factor-1-and-platelet-derived-growth-factor-on-osteogenesis-around-%C3%A2-dental-implants
#3
Wan Lin Zhou, Lin Lin Li, Xin Ru Qiu, Qi An, Mei Hua Li
OBJECTIVE: To explore the effects of the combination of insulin-like growth factor 1 (IGF-1) and platelet-derived growth factor (PDGF) on bone formation around dental implants. METHODS: A total of 24 adult rabbits were included in this experiment. Titanium machine-polished dental implants were placed in the iliac bones to simulate dental implants in the alveolar bone. The rabbits were randomly divided into four groups; a saline treated control group (NS), an IGF-1 treated group, a PDGF-BB treated group, and a combination of IGF-1 and PDGF-BB treated group...
2017: Chinese Journal of Dental Research
https://www.readbyqxmd.com/read/28555206/a-comparison-of-two-implants-with-conical-vs-internal-hex-connections-1-year-post-loading-results-from-a-multicentre-randomised-controlled-trial
#4
Maurizio Cannata, Tommaso Grandi, Rawad Samarani, Luigi Svezia, Giovanni Grandi
PURPOSE: To compare the clinical and radiological outcomes of identical implants with conical or internal hex connections. METHODS: A total of 90 patients with partial edentulism requiring one implant-supported prosthesis were randomly allocated in two equal groups (n = 45) to receive either implants with a conical connection or implants of the same type, but with an internal hex connection at three centres. Patients were followed for 1 year after loading. Outcome measures were implant failures, any complication and marginal bone level changes...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28542040/failure-of-osseointegrated-dental-implant-after-alveolar-nerve-transposition-a-report-of-an-unusual-complication-and-surgical-management
#5
Renato da Costa Ribeiro, Anibal Henrique Barbosa Luna, Cássio Edvard Sverzut, Alexander Tadeu Sverzut
PURPOSE: To describe an unusual case of mandibular fracture after osseointegrated dental implant removal placed after inferior alveolar nerve transposition. REPORT OF CASE: The patient underwent inferior nerve transposition for implant placement due to lack of interarch space. Two months after metal-ceramic crowns installation, the patient began to complain of pain in the region of the implant. In an attempt to remove the implant, there was a fracture of the implant, and only two third of it was removed, leaving only the apical portion of the implant in the mandible...
May 24, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28493384/risk-factors-for-single-crowns-supported-by-short-6-mm-implants-in-the-posterior-region-a-prospective-clinical-and-radiographic-study
#6
Eduardo Aydos Villarinho, Diego Fernandes Triches, Fernando Rizzo Alonso, Luis André Mendonça Mezzomo, Eduardo Rolim Teixeira, Rosemary Sadami Arai Shinkai
BACKGROUND: The use of short implants is still not a consensus for challenging clinical situations, such as unfavorable crown-to-implant (C/I) ratio. PURPOSE: This prospective study evaluated the rates of prosthetic complications and implant failure, the mean marginal bone loss of 6-mm dental implants with single crowns in posterior regions and the potential risk factors. MATERIALS AND METHODS: Forty-six dental implants, 6-mm long and 4.1-mm wide, were placed in the posterior region in 20 patients...
May 10, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28462405/monolithic-zirconia-reconstructions-supported-by-teeth-and-implants-1-to-3-year-results-of-a-case-series
#7
Andreas Worni, Joannis Katsoulis, Lumni Kolgeci, Mathias Worni, Regina Mericske-Stern
OBJECTIVE: Today, only scarce information is available on monolithic zirconia reconstructions. The objective of this study was to evaluate the performance of monolithic zirconia for tooth- and implant-borne reconstructions. METHOD AND MATERIALS: Monolithic zirconia single crowns (SCs) and fixed dental prostheses (FDPs) supported by implants or teeth were included in this study. Implant placement and prosthetic treatment were done in the same clinical setting. One technician performed all laboratory work using the same CAD/CAM workflow (DentalDesigner, Ceramill Motion 2, Amann Girrbach)...
April 28, 2017: Quintessence International
https://www.readbyqxmd.com/read/28462189/short-dental-implants-in-the-posterior-maxilla-a-review-of-the-literature
#8
REVIEW
Zeinab Rezaei Esfahrood, Loghman Ahmadi, Elahe Karami, Shima Asghari
The purpose of this study was to perform a literature review of short implants in the posterior maxilla and to assess the influence of different factors on implant success rate. A comprehensive search was conducted to retrieve articles published from 2004 to 2015 using short dental implants with lengths less than 10 mm in the posterior maxilla with at least one year of follow-up. Twenty-four of 253 papers were selected, reviewed, and produced the following results. (1) The initial survival rate of short implants in the posterior maxilla was not related to implant width, surface, or design; however, the cumulative success rate of rough-surface short implants was higher than that of machined-surface implants especially in performance of edentulous dental implants of length <7 mm...
April 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28453221/peri-implant-bone-density-around-implants-of-different-lengths-a-3-year-follow-up-of-a-randomized-clinical-trial
#9
P Sahrmann, P Schoen, N Naenni, R Jung, T Attin, P R Schmidlin
OBJECTIVES: Short dental implants are frequently placed, however, little is known about the effect of the loading force regarding an enhanced crown-to-implant ratio. The aim of this study was therefore to assess bone density changes after a three-year period, on radiographs acquired from a randomized controlled two-center clinical study comparing implants of 6 and 10 mm of length. MATERIALS AND METHODS: Three predefined areas were chosen on standardized X-rays in order to assess grey-scale values of the peri-implant bone: One at the tip of the apex and two at half-length on the mesial and distal sides of the implant...
April 28, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28388398/transalveolar-osteotomy-of-the-mandibular-canal-wall-for-the-treatment-of-severely-atrophied-posterior-mandible
#10
Eduardo Anitua, Sabino Padilla, Mohammad H Alkhraisat
PURPOSE: Treatment of severe bone atrophy of the posterior mandible requires an advanced surgical bone augmentation technique. This report describes a minimally invasive approach for a residual alveolar height less than 5 mm. MATERIAL AND METHODS: A retrospective case series was conducted in a single private dental clinic. Outcome variables were dental implant survival rate, intraoperative complications, occurrence of neurosensory disturbances, and marginal bone loss...
March 15, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28386851/in-vivo-osseointegration-of-dental-implants-with-an-antimicrobial-peptide-coating
#11
X Chen, X C Zhou, S Liu, R F Wu, C Aparicio, J Y Wu
This study aimed to evaluate the in vivo osseointegration of implants with hydrophobic antimicrobial GL13K-peptide coating in rabbit femoral condyles by micro-CT and histological analysis. Six male Japanese Rabbits (4 months old and weighing 2.5 kg each) were included in this study. Twelve implants (3.75 mm wide, 7 mm long) were randomly distributed in two groups, with six implants in the experimental group coated with GL13K peptide and six implants in the control group without surface coating. Each implant in the test and the control group was randomly implanted in the left or right side of femoral condyles...
May 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28383305/a-digital-image-correlation-analysis-of-strain-generated-by-3-unit-implant-supported-fixed-dental-prosthesis-an-in-vitro-study
#12
Raniel F Peixoto, Ana P Macedo, Janisse Martinelli, Adriana C Lapria Faria, Rodrigo Tiossi, Ricardo F Ribeiro, Maria da G C de Mattos
OBJECTIVE: To evaluate the influence of different veneering materials (porcelain and resin) and implants (short and conventional) in the strain distribution of implant-supported splinted fixed partial dentures (FPDs) using digital image correlation (DIC). MATERIAL AND METHODS: Four polyurethane models were fabricated with resin replicas (first premolar) and short and/or conventional implants replacing the second premolar and first and second molars, according to the following configurations: G1, 2 conventional (second premolar and first molar) and 1 short (second molar) implant; G2, 1 conventional (second premolar) and 2 short (first and second molar) implants; G3, 3 short implants; G4, 3 conventional implants...
April 5, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28370406/6-mm-long-implants-loaded-with-fiber-reinforced-composite-resin-bonded-fixed-prostheses-frcrbfdps-a-5-year-prospective-study
#13
Fabio Rossi, Niklaus P Lang, Emanuele Ricci, Lorenzo Ferraioli, Claudio Marchetti, Daniele Botticelli
AIM: To evaluate the clinical and radiographic outcomes and the survival rates of fiber-reinforced composite resin-bonded fixed prostheses (FRCRBFDPs) placed in the posterior area supported by two short (6 mm) implants. MATERIALS AND METHODS: Twenty consecutive patients received 40 SLActive 6-mm-long implants with a diameter of 4.1 mm (n = 29) or 4.8 mm (n = 11). Insertion torques and RFA (Resonance Frequency Analysis) were measured at implant installation...
March 28, 2017: Clinical Oral Implants Research
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
#14
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...
March 30, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28332286/analysis-of-risk-factors-for-cluster-behavior-of-dental-implant-failures
#15
Bruno Ramos Chrcanovic, Jenö Kisch, Tomas Albrektsson, Ann Wennerberg
BACKGROUND: Some studies indicated that implant failures are commonly concentrated in few patients. PURPOSE: To identify and analyze cluster behavior of dental implant failures among subjects of a retrospective study. MATERIALS AND METHODS: This retrospective study included patients receiving at least three implants only. Patients presenting at least three implant failures were classified as presenting a cluster behavior. Univariate and multivariate logistic regression models and generalized estimating equations analysis evaluated the effect of explanatory variables on the cluster behavior...
March 22, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28291859/short-dental-implants-retaining-two-implant-mandibular-overdentures-in-very-old-dependent-patients-radiologic-and-clinical-observation-up-to-5-years
#16
RANDOMIZED CONTROLLED TRIAL
Sabrina Maniewicz, Ramona Buser, Elena Duvernay, Lydia Vazquez, Angelica Loup, Thomas V Perneger, Martin Schimmel, Frauke Müller
PURPOSE: To describe the survival rate and peri-implant bone loss in very old patients dependent for their activities of daily living (ADL), treated with mandibular two-implant overdentures (IODs) in the context of a previously reported randomized controlled trial. MATERIALS AND METHODS: A total of 19 patients received two interforaminal Straumann implants (Regular Neck, 4.1 mm diameter, 8 mm length) that were subsequently loaded with Locator attachments, transforming their preexisting inferior conventional denture into an IOD...
March 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28261519/treatment-concepts-for-the-posterior-maxilla-and-mandible-short-implants-versus-long-implants-in-augmented-bone
#17
REVIEW
Daniel Stefan Thoma, Jae-Kook Cha, Ui-Won Jung
The aim of this narrative review is to describe treatment options for the posterior regions of the mandible and the maxilla, comparing short implants vs. longer implants in an augmented bone. The dental literature was screened for treatment options enabling the placement of dental implants in posterior sites with a reduced vertical bone height in the maxilla and the mandible. Short dental implants have been increasingly used recently, providing a number of advantages including reduced patient morbidity, shorter treatment time, and lower costs...
February 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28259940/dickkopf-related-protein-3-negatively-regulates-the-osteogenic-differentiation-of-rat-dental-follicle-cells
#18
Xinchun Zhang, Yu Du, Junqi Ling, Weiqiang Li, Yan Liao, Xi Wei
The present study aimed to investigate the effect of Dickkopf-related protein 3 (DKK3) on osteogenic differentiation of rat dental follicle cells (DFCs). A PCR array analysis of Wnt pathway activation in DFCs identified genes dysregulated by mineral induction. Among them, DKK3expression levels were decreased, and further experiments were conducted to investigate its role in DFC osteogenesis. By comparing DFCs grown in normal growth and mineral‑induction media for 4 weeks, the present study confirmed that DKK3 was a potential target gene of osteogenesis through reverse transcription-quantitative polymerase chain reaction (RT‑qPCR) and western blotting (WB)...
April 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28251794/augmentation-of-severly-resorbed-alveolar-crests-with-bovine-bone-blocks-a-human-histology-pilot-study
#19
Christer Slotte, Ulf Nannmark
BACKGROUND: Allo-/xenogenic bone blocks are used to treat bone defects. Few human histologic studies are found on their integration and capacity to augment new bone. PURPOSE: To study incorporation and stability of collagenated bovine bone blocks (CBB). Short term effects, histology, and morphometry on biopsy specimens are presented. MATERIALS AND METHODS: Nine patients exhibiting extremely narrow alveolar ridges had CBB adapted and fixed to the recipient bone and covered with collagen barriers...
June 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28246094/bactericidal-and-antimicrobial-effects-of-pure-titanium-and-titanium-alloy-treated-with-short-term-low-energy-uv-irradiation
#20
T Itabashi, K Narita, A Ono, K Wada, T Tanaka, G Kumagai, R Yamauchi, A Nakane, Y Ishibashi
OBJECTIVES: The surface of pure titanium (Ti) shows decreased histocompatibility over time; this phenomenon is known as biological ageing. UV irradiation enables the reversal of biological ageing through photofunctionalisation, a physicochemical alteration of the titanium surface. Ti implants are sterilised by UV irradiation in dental surgery. However, orthopaedic biomaterials are usually composed of the alloy Ti6Al4V, for which the antibacterial effects of UV irradiation are unconfirmed...
February 2017: Bone & Joint Research
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