Purpose A retrospective study was done to evaluate the use of transalveolar implant placement in the mandible posterior to the mental nerve. Materials and Methods Ten patient charts were reviewed of ...twenty implants placed transalveolarly with evaluation of function, osseointegration, and bone level for 1 year by unregistered periapical x-rays. Results Ten patients which received twenty transalveolar implants were followed for 1 year. One implant failed. There were no significant complications encountered from the procedure. Conclusion All On Four treatment of mandibles with relatively anterior mental nerve locations may be successfully treated with transalveolar implant placement posterior to the foramen.
The All-on-4 Shelf: Maxilla Jensen, Ole T., DDS, MSc; Adams, Mark W., DDS, MSc; Cottam, Jared R., DDS, MD ...
Journal of oral and maxillofacial surgery,
10/2010, Volume:
68, Issue:
10
Journal Article
Peer reviewed
All-on-4 treatment is facilitated by bone reduction to create prosthetic restorative space, establish maximum anterior posterior spread of implants, and to avoid pneumatized sites. Unlike a reduction ...alveloplasty for denture placement, the All-on-4 shelf enables optimal surgical prosthetic management of implant placement for the fixed hybrid prosthesis.
The All on 4 Shelf: Mandible Jensen, Ole T., DDS, MSc; Adams, Mark W., DDS, MSc; Cottam, Jared R., DDS, MD ...
Journal of oral and maxillofacial surgery,
2011, 2011-Jan, 2011-1-00, 20110101, Volume:
69, Issue:
1
Journal Article
Peer reviewed
The use of full arch alveolar reduction as an aide to doing All on 4 implant restoration in the mandible is presented. The osteoplasty is described as a flat “shelf” on which to place the ...restoration. The shelf approach is used to establish optimal implant position and angulation as well as to define anatomy to maximize implant fixation for immediate load prosthetics.
Purpose The purpose of this study was to determine the incidence and treatment of hour glass variant mandibles for All On Four implant placement. Materials and Methods Cone beam CAT scans were ...analyzed for 719 patients to determine the incidence of alveolar constriction in the mandible. Ten patients with alveolar constriction were treated over a 2-year period and retrospectively studied after 1 year in function. Results Of 719 mandibles studied, 28 have “hour glass” variants identified for an incidence of 3.89%. Treatment of these cases were variously done including the use of guided bone regeneration, the use of long implants, bone reduction, and angulation strategies. Conclusions The hour glass mandibular finding is a developmental or genetic variant that poses a significant anatomic difficulty for dental implant surgery for All On Four immediate function.
We present a technical note and 3 case reports of all-on-4 treatment of highly resorbed maxillas. The use of 4 angled implants, placed at as much as 30° off axis, that engage the lateral nasal wall ...bone provide high torque fixation for immediate temporization. The technique is proposed as an alternative to sinus grafting and for use with multiple implants or zygomatic implants.
This report contains a technical note and 2 case reports of the “all-on-4” treatment of the highly resorbed mandible. The use of 4 angled implants directed toward the midline of the mandible at 30° ...angles provides the advantage of increased implant length and adequate insertion torque for immediate temporization. The technique engages or perforates the inferior border with implants placed in a spaced distribution to avoid fracture of the mandible. The technique is proposed as an alternative to bone graft reconstruction.
COCATS 4 Task Force 13: Training in Critical Care Cardiology O’Gara, Patrick T., MD, MACC; Adams, Jesse E., MD, FACC; Drazner, Mark H., MD, MSc, FACC ...
Journal of the American College of Cardiology,
05/2015, Volume:
65, Issue:
17
Journal Article
Peer reviewed
Open access
Introduction Document Development Process Writing Committee Organization The writing committee was selected to represent the American College of Cardiology (ACC) and included a cardiovascular ...training program director; a director of a coronary care unit; experts in advanced interventional procedures, cardiothoracic surgery, electrophysiology, and heart failure; early-career experts; highly experienced specialists representing both the academic and community-based practice settings; and physicians experienced in defining and applying training standards according to the 6 general competency domains promulgated by the Accreditation Council for Graduate Medical Education (ACGME) and American Board of Medical Specialties (ABMS) and endorsed by the American Board of Internal Medicine (ABIM). Name Employment Representation Consultant Speakers Bureau Ownership/Partnership/Principal Personal Research Institutional/Organizational or Other Financial Benefit Expert Witness Richard Kovacs Indiana University, Krannert Institute of Cardiology--Q.E. and Sally Russell Professor of Cardiology Official Reviewer, ACC Board of Trustees None None None None None None Dhanunjaya Lakkireddy Kansas University Cardiovascular Research Institute Official Reviewer, ACC Board of Governors None None None None None None Howard Weitz Thomas Jefferson University Hospital--Director, Division of Cardiology; Sidney Kimmel Medical College at Thomas Jefferson University--Professor of Medicine Official Reviewer, Competency Management Committee Lead Reviewer None None None None None None Mardi Gomberg-Maitland University of Chicago Medicine--Associate Professor, Medicine, Cardiology; Director, Pulmonary Hypertension Content Reviewer, Individual None None None None None None David Holmes Mayo Clinic--Consultant, Cardiovascular Diseases Content Reviewer, Individual None None None None None None Larry Jacobs Lehigh Valley Health Network, Division of Cardiology; University of South Florida--Professor, Cardiology Content Reviewer, Cardiology Training and Workforce Committee None None None None None None Andrew Kates Washington University School of Medicine Content Reviewer, Academic Cardiology Section Leadership Council None None None None None None Eric Peterson Duke Clinical Research Institute--Executive Director; Duke University Medical Center--Professor, Medicine Content Reviewer, Individual None None None None None None Table 1 Core Competency Components and Curricular Milestones for Training in Critical Care Cardiology Add = additional months beyond the 3-year cardiovascular fellowship.
Objective Uterine overdistention is thought to induce preterm labor in women with twin and multiple pregnancies, but the pathophysiology remains unclear. We investigated for the first time the ...pathogenesis of preterm birth associated with rapid uterine distention in a pregnant nonhuman primate model. Study Design A nonhuman primate model of uterine overdistention was created using preterm chronically catheterized pregnant pigtail macaques ( Macaca nemestrina ) by inflation of intraamniotic balloons (N = 6), which were compared to saline controls (N = 5). Cesarean delivery was performed due to preterm labor or at experimental end. Microarray, quantitative reverse transcriptase polymerase chain reaction, Luminex (Austin, TX), and enzyme-linked immunosorbent assay were used to measure messenger RNA (mRNA) and/or protein levels from monkey (amniotic fluid, myometrium, maternal plasma) and human (amniocytes, amnion, myometrium) tissues. Statistical analysis employed analysis of covariance and Wilcoxon rank sum. Biomechanical forces were calculated using the law of Laplace. Results Preterm labor occurred in 3 of 6 animals after balloon inflation and correlated with greater balloon volume and uterine wall stress. Significant elevations of inflammatory cytokines and prostaglandins occurred following uterine overdistention in an “inflammatory pulse” that correlated with preterm labor (interleukin IL-1β, tumor necrosis factor TNF-α, IL-6, IL-8, CCL2, prostaglandin E2, prostaglandin F2α, all P < .05). A similar inflammatory response was observed in amniocytes in vitro following mechanical stretch (IL1β, IL6, and IL8 mRNA multiple time points, P < .05), in amnion of women with polyhydramnios (IL6 and TNF mRNA, P < .05) and in amnion (TNF-α) and myometrium of women with twins in early labor (IL6, IL8, CCL2, all P < .05). Genes differentially expressed in the nonhuman primate after balloon inflation and in women with polyhydramnios and twins are involved in tissue remodeling and muscle growth. Conclusion Uterine overdistention by inflation of an intraamniotic balloon is associated with an inflammatory pulse that precedes and correlates with preterm labor. Our results indicate that inflammation is an early event after a mechanical stress on the uterus and leads to preterm labor when the stress is sufficiently great. Further, we find evidence of uterine tissue remodeling and muscle growth as a common, perhaps compensatory, response to uterine distension.
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