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https://www.readbyqxmd.com/read/29150957/randomized-controlled-clinical-two-center-study-using-xenogeneic-block-grafts-loaded-with-recombinant-human-bone-morphogenetic-protein-2-or-autogenous-bone-blocks-for-lateral-ridge-augmentation
#1
Daniel S Thoma, Michael Payer, Norbert Jakse, Stefan P Bienz, Jürg Hüsler, Patrick R Schmidlin, Ui-Won Jung, Christoph H F Hämmerle, Ronald E Jung
OBJECTIVES: to test whether or not the use of a xenogeneic block loaded with recombinant human bone morphogenetic protein-2 (rhBMP-2) results in different bone quantity and quality compared to an autogenous bone block. MATERIALS AND METHODS: 24 patients with insufficient bone volume for implant placement were randomly assigned to two treatment modalities: a xenogeneic bone block loaded with rhBMP-2 (test) or an autogenous bone block (control). The horizontal ridge width was evaluated prior to augmentation, after augmentation and at 4 months...
November 18, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29150131/a-3d-printed-guide-for-lateral-approach-sinus-grafting-a-dental-technique
#2
Brian J Goodacre, Rajesh S Swamidass, Jaime Lozada, Aladdin Al-Ardah, Erik Sahl
Lateral approach sinus grafting has become a routine and predictable surgical method of augmenting the pneumatized sinus for implant placement. Outlining the lateral window access can be a challenging task for the clinician to envision and execute. Improper extension and access to the maxillary sinus can prevent proper placement of graft materials and lead to complications. The purpose of this report was to demonstrate a technique that will allow the precise planning of the lateral approach using radiographic information and 3-dimensional (3D) software to 3D-print a surgical guide...
November 15, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29150129/diagnostic-accuracy-of-4-intraoral-radiographic-techniques-for-misfit-detection-at-the-implant-abutment-joint
#3
Pollyana Darós, Vinícius Cavalcanti Carneiro, Amanda Pasolini Siqueira, Sergio Lins de-Azevedo-Vaz
STATEMENT OF PROBLEM: A misfit or gap at the implant-abutment joint (IAJ) requires detection as it may compromise the health of the peri-implant tissue. However, which radiographic technique provides the most orthogonal relationship between the central beam and the implant/image receptor is unclear. PURPOSE: The purpose of this in vitro study was to evaluate the diagnostic accuracy of 4 intraoral radiographic techniques on misfit detection at the IAJ. MATERIAL AND METHODS: Twenty implants were placed in polyamide jaws, and customized dental implant abutments with a metal collar were installed...
November 15, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29149204/evaluation-of-osseous-integration-of-titanium-orthopedic-screws-with-novel-sla-treatment-in-porcine-model
#4
Tzu-Hsiang Lin, Hsin-Tai Hu, Hsueh-Chun Wang, Meng-Chian Wu, Shu-Wei Wu, Ming-Long Yeh
The success of many endosseous implants in orthopaedic and dental applications depends on the surface characteristics, as they affect osseous integration. Previous investigations indicated that a novel large-grit sand-blasted and acid-etched (SLA) titanium (denoted as SLAffinity-Ti) implant had better bone integration than that of a comparably shaped implant with a plasma-sprayed titanium surface. The purpose of the present investigation was to create a SLAffinity surface on pedicle screws and trauma screws and to compare it with the surfaces of a sand-blasted-only implant and commercial implants in terms of bone integration...
2017: PloS One
https://www.readbyqxmd.com/read/29149082/the-biological-properties-of-ogi-surfaces-positively-act-on-osteogenic-and-angiogenic-commitment-of-mesenchymal-stem-cells
#5
Paolo Ghensi, Eriberto Bressan, Chiara Gardin, Letizia Ferroni, Maria Costanza Soldini, Federico Mandelli, Claudio Soldini, Barbara Zavan
Osteogenesis process displays a fundamental role during dental implant osteointegration. In the present work, we studied the influence of Osteon Growth Induction (OGI) surface properties on the angiogenic and osteogenic behaviors of Mesenchymal Stem cells (MSC). MSC derived from dental pulp and HUVEC (Human Umbilical Vein Endothelial Cells) were grown in on OGI titanium surfaces, and cell proliferation and DNA synthesis were evaluated by MTT [3-(4,5-dimethylthiazol-2yl)-2,5-diphenyltetrazolium bromide] test and DNA quantification...
November 17, 2017: Materials
https://www.readbyqxmd.com/read/29148161/piezoelectric-versus-conventional-implant-site-preparation-a-systematic-review-and-meta-analysis
#6
REVIEW
Momen A Atieh, Nabeel H M Alsabeeha, Andrew Tawse-Smith, Warwick J Duncan
BACKGROUND: The use of a piezoelectric device (PED) for implant site preparation (ISP) has been introduced to overcome the limitations of using conventional drills (CDs). With little and inconsistent information in the literature regarding their efficiency for preparing implant osteotomies, the objective of this systematic review was to compare the use of CDs to PEDs for ISP with regard to implant stability values, marginal bone level changes, operating time, and dental implant failure rate...
November 16, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29148121/position-accuracy-of-implant-analogs-on-3d-printed-polymer-versus-conventional-dental-stone-casts-measured-using-a-coordinate-measuring-machine
#7
Marta Revilla-León, Óscar Gonzalez-Martín, Javier Pérez López, José Luis Sánchez-Rubio, Mutlu Özcan
PURPOSE: To compare the accuracy of implant analog positions on complete edentulous maxillary casts made of either dental stone or additive manufactured polymers using a coordinate measuring machine (CMM). MATERIAL AND METHODS: A completely edentulous maxillary model of a patient with 7 implant analogs was obtained. From this model, two types of casts were duplicated, namely conventional dental stone (CDS) using a custom tray impression technique after splinting (N = 5) and polymer cast using additive manufacturing based on the STL file generated...
November 17, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29147823/primary-peri-implant-oral-intra-epithelial-neoplasia-carcinoma-in-situ-a-case-report-considering-risk-factors-for-carcinogenesis
#8
Makoto Noguchi, Hiroaki Tsuno, Risa Ishizaka, Kumiko Fujiwara, Shuichi Imaue, Kei Tomihara, Takashi Minamisaka
BACKGROUND: Major risk factors for oral squamous cell carcinoma (SCC) are tobacco smoking, a betel quid chewing habit, and heavy alcohol consumption. However, around 15% of oral SCCs cannot be explained by these risk factors. Although oral SCC associated with dental implants is quite rare, there has been a recent gradual accumulation of reports about it. Here, we report a case of primary peri-implant oral intra-epithelial neoplasia/carcinoma in situ (OIN/CIS) in a woman without the major risk factors for oral SCC...
November 16, 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/29146396/effect-of-implant-loading-protocols-on-failure-and-marginal-bone-loss-with-unsplinted-two-implant-supported-mandibular-overdentures-systematic-review-and-meta-analysis
#9
REVIEW
M H E-D Helmy, A Y Alqutaibi, A A El-Ella, A F Shawky
The aim of this study was to compare implant failure and radiographic bone level changes with different loading protocols for unsplinted two-implant-supported mandibular overdentures. An electronic search of two databases (PubMed, Cochrane Library) was performed, without language restriction, to identify randomized controlled trials (RCTs) comparing immediate or early versus conventional dental implant loading protocols for unsplinted two-implant-supported mandibular overdentures. Data were extracted independently by two reviewers...
November 13, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29145529/volumetric-bone-measurement-around-dental-implants-using-3d-image-superimposition-a-methodological-and-clinical-pilot-study
#10
Eduardo Aydos Villarinho, André Correia, Alvaro Vigo, Nuno Viriato Ramos, Mário Augusto Pires Vaz, Rosemary Sadami Arai Shinkai
PURPOSE: This study describes the development of a methodology for using three-dimensional (3D) image superimposition to measure volumetric changes in bone level around dental implants in comparison with linear measures. MATERIALS AND METHODS: The sample was comprised of 46 dental implants of 6-mm length and 4.1-mm diameter placed in the posterior maxilla and posterior mandible in 20 patients. All implants received screw-retained single crowns. Radiographic images were taken using cone beam computed tomography (CBCT) and digital periapical radiography after implantation and after 12 and 24 months of functional loading (after crown installation)...
November 16, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/29143462/evaluation-of-immediate-implants-augmented-with-autogenous-bone-melatonin-composite-graft-in-the-esthetic-zone-a-randomized-controlled-trial
#11
Hala H A Hazzaa, Naglaa Sh El-Kilani, Shadia Abd-Elhameed Elsayed, Phoebe M Abd El Massieh
PURPOSE: To evaluate the clinical and radiographic outcomes following the application of autogenous bone (ABG)/melatonin composite graft around immediate implants in the esthetic zone compared to ABG alone. MATERIALS AND METHODS: Twenty-six patients with two nonrestorable anterior/premolar teeth were randomly classified into two equal groups. Dental implants were immediately inserted either with ABG (control group) or ABG/melatonin (test group). Outcome measures were peri-implant sulcus depth (PD), gingival index (GI), and wound healing scores...
November 16, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29143221/controlling-streptococcus-mutans-and-staphylococcus-aureus-biofilms-with-direct-current-and-chlorhexidine
#12
Hao Wang, Dacheng Ren
Microbial biofilms formed on biomaterials are major causes of chronic infections. Among them, Gram-positive bacteria Streptococcus mutans and Staphylococcus aureus are important pathogens causing infections associated with dental caries (tooth-decay) and other medical implants. Unfortunately, current antimicrobial approaches are ineffective in disrupting established biofilms and new methods are needed to improve the efficacy. In this study, we report that the biofilm cells of S. mutans and S. aureus can be effectively killed by low-level direct current (DC) and through synergy in concurrent treatment with DC and chlorhexidine (CHX) at low concentrations...
November 15, 2017: AMB Express
https://www.readbyqxmd.com/read/29142655/maxillary-sinus-floor-augmentation-a-review-of-selected-treatment-modalities
#13
REVIEW
Thomas Starch-Jensen, Janek Dalsgaard Jensen
Objectives: The objective of the present study is to present the current best evidence for enhancement of the vertical alveolar bone height and oral rehabilitation of the atrophic posterior maxilla with dental implants and propose some evidence-based treatment guidelines. Material and Methods: A comprehensive review of the English literature including MEDLINE (PubMed), Embase and Cochrane Library search was conducted assessing the final implant treatment outcome after oral rehabilitation of the atrophic posterior maxilla with dental implants...
July 2017: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/29142653/oral-cancer-around-dental-implants-appearing-in-patients-with-without-a-history-of-oral-or-systemic-malignancy-a-systematic-review
#14
REVIEW
Ginnady Pinchasov, Haim Haimov, Monika Druseikaite, Daniel Pinchasov, Inesa Astramskaite, Rafael Sarikov, Gintaras Juodzbalys
Objectives: The purpose of this article is to systematically review the circumstance of oral cancer around osseointegrated dental implants. Material and Methods: An electronic literature search was conducted through the MEDLINE (PubMed) and EMBASE databases. The search was restricted for articles published during the last 21 years from January 1996 to April 2017 and articles were limited to English language. Results: A total of 35 articles were reviewed, and 19 of the most relevant articles that are suitable to the criteria were selected...
July 2017: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/29142646/integrating-3d-facial-scanning-in-a-digital-workflow-to-cad-cam-design-and-fabricate-complete-dentures-for-immediate-total-mouth-rehabilitation
#15
Bassam Hassan, Marcus Greven, Daniel Wismeijer
PURPOSE: To integrate extra-oral facial scanning information with CAD/CAM complete dentures to immediately rehabilitate terminal dentition. MATERIALS AND METHODS: Ten patients with terminal dentition scheduled for total extraction and immediate denture placement were recruited for this study. The patients were submitted to a facial scanning procedure using the in-office PritiMirror scanner with bite registration records in-situ. Definitive stone cast models and bite records were subsequently submitted to a lab scanning procedure using the lab scanner (iSeries DWOS; Dental Wings)...
October 2017: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/29140389/influence-of-rhbmp-2-on-guided-bone-regeneration-for-placement-and-functional-loading-of-dental-implants-a-radiographic-and-histologic-study-in-dogs
#16
Heithem Ben Amara, Jung-Won Lee, Jung-Ju Kim, Yun-Mi Kang, Eun-Jung Kang, Ki-Tae Koo
PURPOSE: Evidence on the outcomes of functional loading placed in recombinant human bone morphogenetic protein 2 (rhBMP-2)/acellular collagen sponge (ACS)-induced bone is lacking. The aim of this study was to verify whether guided bone regeneration (GBR) with rhBMP-2/ACS enhances regeneration of missing bone and osseointegration of dental implants subject to functional loading. MATERIALS AND METHODS: Two bilateral standardized large saddle-type defects (≈10 × 10 × 6 mm) were surgically created in each mandible of seven beagle dogs 2 months after tooth extraction...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140388/titanium-activates-the-dna-damage-response-pathway-in-oral-epithelial-cells-a-pilot-study
#17
Fernando Suárez-López Del Amo, Ivan Rudek, Vivian Petersen Wagner, Manoela D Martins, Francisco O'Valle, Pablo Galindo-Moreno, William V Giannobile, Hom-Lay Wang, Rogerio M Castilho
PURPOSE: To evaluate the effect of titanium (Ti) particles on oral epithelial cell homeostasis and the potential of dental implants to release Ti debris upon insertion. MATERIALS AND METHODS: Dental implants with varying surface treatments were employed to determine the feasibility of particle release during implant placement as well as the impact of free Ti debris on oral epithelial cells. Ti particles derived from implant surfaces were isolated and cultured in direct contact with normal oral epithelial cells for 48 hours...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140387/full-mouth-rehabilitation-with-calvarium-bone-grafts-and-dental-implants-for-a-papillon-lef%C3%A3-vre-syndrome-patient-case-report
#18
Bassam M Kinaia, Kristyn Hope, Ahmed Zuhaili, Jean Francois Tulasne
Papillon-Lefèvre syndrome (PLS) is a rare autosomal recessive disorder of keratinization associated with palmoplantar keratoderma and severe periodontitis resulting in complete edentulism in late adolescence. The pathognomonic dental features of PLS are pathologic migration, hypermobility, and exfoliation of the teeth without any signs of root resorption. It has been suggested that an effective way to treat PLS patients presenting early in the disease progression is extraction of the erupted primary dentition or hopeless permanent teeth followed by antibiotic coverage with periodontal therapy for the remaining teeth...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140382/implant-mandibular-overdentures-retained-by-immediately-loaded-implants-a-1-year-randomized-trial-comparing-the-clinical-and-radiographic-outcomes-between-mini-dental-implants-and-standard-sized-implants
#19
Kostas Zygogiannis, Irene Ha Aartman, Azin Parsa, Ali Tahmaseb, Daniel Wismeijer
PURPOSE: The aim of this 1-year randomized trial was to evaluate and compare the clinical and radiographic performance of four immediately loaded mini dental implants (MDIs) and two immediately loaded standard-sized tissue-level (STL) implants, placed in the interforaminal region of the mandible and used to retain mandibular overdentures (IODs) in completely edentulous patients. MATERIALS AND METHODS: A total of 50 completely edentulous patients wearing conventional maxillary dentures and complaining about insufficient retention of their mandibular dentures were divided into two groups; 25 patients received four MDIs and 25 patients received two STL implants...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140381/consistency-of-dental-hygiene-therapy-utilizing-various-dental-hygiene-instrumentation-and-its-effect-on-peri-implant-health-and-survival-of-dental-implants-a-retrospective-study
#20
Sarah B Hoerler, Sandra K Nietz, Victoria L Zook, Christine M Lohse, Thomas J Salinas, Alan B Carr, Daniel A Assad
PURPOSE: The purpose of this retrospective study was to provide practice-based evidence to determine if the consistency of dental hygiene therapy, despite utilizing instrumentation literature that has proven to cause alterations to implant surfaces, affects peri-implant health or survival. MATERIALS AND METHODS: The study sample comprised patients with implant-supported full-arch fixed dental prostheses who were distributed into two groups. The consistent hygiene group patients had dental hygiene therapy at a minimum biannually and were exposed to at least three dental hygiene instrument materials...
November 2017: International Journal of Oral & Maxillofacial Implants
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