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Root coverage

Kandace Yee, Pradeep Bhagavatula, Sheila Stover, Frederick Eichmiller, Lance Hashimoto, Scott MacDonald, Gordon Barkley
INTRODUCTION: The objective of this study was to determine the effect of delayed placement of the core/post and crown on the outcomes of nonsurgical root canal therapy (NSRCT). METHODS: According to the Delta Dental of Wisconsin claims database, 160,040 NSRCTs were completed with a core/post and a crown placed before the end of the continuous coverage period or occurrence of an untoward event. Untoward events were defined as a retreatment, apicoectomy, or extraction as defined by the Code on Dental Procedures and Nomenclature...
December 8, 2017: Journal of Endodontics
David H Muljono
Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections pose serious problems in terms of public health and clinical intervention in a country with approximately 250 million people, who live in more than 17,000 islands. Efforts to combat HBV and HCV have been made through the implementation of universal infant hepatitis B immunization, blood screening, and other health promotion actions, and building epidemiological data to develop intervention strategies. A nationwide study in 2013 revealed hepatitis B surface antigen (HBsAg) prevalence of 7...
January 2017: Euroasian Journal of Hepato-Gastroenterology
Stephen W Pan, Hiu Ha Chong, Hui-Chuan Kao
INTRODUCTION: Indigenous communities in Taiwan shoulder a disproportionate burden of unintentional injury fatalities. We compare unintentional injury mortality rate trends among Taiwan's indigenous communities and the general population from 2002 to 2013, and evaluate potential impact of a community-based injury prevention programme on indigenous unintentional injury death rates. METHODS: Standardised and crude unintentional injury mortality rates were obtained from Taiwan government reports...
November 27, 2017: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
Oliver Lüdtke, Alexander Robitzsch, Jenny Wagner
The STARTS (Stable Trait, AutoRegressive Trait, and State) model decomposes individual differences in psychological measurement across time into 3 sources of variation: a time-invariant stable component, a time-varying autoregressive component, and an occasion-specific state component. Previous simulation research and applications of the STARTS model have shown that serious estimation problems such as nonconvergence or inadmissible estimates (e.g., negative variances) frequently occur for STARTS model parameters...
November 27, 2017: Psychological Methods
Jens Keilwagen, Heike Lehnert, Thomas Berner, Holger Budahn, Thomas Nothnagel, Detlef Ulrich, Frank Dunemann
Terpenes are an important group of secondary metabolites in carrots influencing taste and flavor, and some of them might also play a role as bioactive substances with an impact on human physiology and health. Understanding the genetic and molecular basis of terpene synthases (TPS) involved in the biosynthesis of volatile terpenoids will provide insights for improving breeding strategies aimed at quality traits and for developing specific carrot chemotypes possibly useful for pharmaceutical applications. Hence, a combination of terpene metabolite profiling, genotyping-by-sequencing (GBS), and genome-wide association study (GWAS) was used in this work to get insights into the genetic control of terpene biosynthesis in carrots and to identify several TPS candidate genes that might be involved in the production of specific monoterpenes...
2017: Frontiers in Plant Science
Cristina Andrés-Barrao, Feras F Lafi, Intikhab Alam, Axel de Zélicourt, Abdul A Eida, Ameerah Bokhari, Hanin Alzubaidy, Vladimir B Bajic, Heribert Hirt, Maged M Saad
Enterobacter sp. SA187 is an endophytic bacterium that has been isolated from root nodules of the indigenous desert plant Indigofera argentea. SA187 could survive in the rhizosphere as well as in association with different plant species, and was able to provide abiotic stress tolerance to Arabidopsis thaliana. The genome sequence of SA187 was obtained by using Pacific BioScience (PacBio) single-molecule sequencing technology, with average coverage of 275X. The genome of SA187 consists of one single 4,429,597 bp chromosome, with an average 56% GC content and 4,347 predicted protein coding DNA sequences (CDS), 153 ncRNA, 7 rRNA, and 84 tRNA...
2017: Frontiers in Microbiology
Mufaro Kanyangarara, Victoria B Chou
BACKGROUND: Calls have been made for improved measurement of coverage for maternal, newborn and child health interventions. Recently, methods linking household and health facility surveys have been used to improve estimation of intervention coverage. However, linking methods rely the availability of household and health facility surveys which are temporally matched. Because nationally representative health facility assessments are not yet routinely conducted in many low and middle income countries, estimates of intervention coverage based on linking methods can be produced for only a subset of countries...
November 7, 2017: BMC Public Health
Vasileia Tsiagali, Yvoni Kirmanidou, Argirios Pissiotis, Konstantinos Michalakis
PURPOSE: To investigate in vitro the retention and the resistance form, as well as the failure modes of maxillary premolars restored with cast metal crowns and different core materials. MATERIALS AND METHODS: Sixty human extracted maxillary premolars were selected according to their size and were embedded in PMMA resin blocks. After removing a part of their clinical crowns, the teeth were randomly divided into 3 groups of 20 teeth and were either left unrestored, or they were restored with amalgam or composite resin...
November 16, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
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
Claudia Pedroza, Van Thi Thanh Truong
BACKGROUND: Analyses of multicenter studies often need to account for center clustering to ensure valid inference. For binary outcomes, it is particularly challenging to properly adjust for center when the number of centers or total sample size is small, or when there are few events per center. Our objective was to evaluate the performance of generalized estimating equation (GEE) log-binomial and Poisson models, generalized linear mixed models (GLMMs) assuming binomial and Poisson distributions, and a Bayesian binomial GLMM to account for center effect in these scenarios...
November 2, 2017: Trials
Nikolaos Tatarakis, Nikolaos Gkranias, Ulpee Darbar, Nikolaos Donos
BACKGROUND: The study investigated the early healing process following the treatment of single Miller class I and II recessions with a 3D xenogeneic collagen matrix (CMX) or connective tissue graft (CTG). METHODS: This pilot investigation was designed as a single-center randomized controlled parallel trial. A total of eight subjects (four per group) were treated with either CMX or CTG in the anterior maxilla. Vascular flow changes were assessed by laser Doppler flowmetry (LDF) before and after surgery and at days 1, 2, 3, 7, 14, and 30 while clinical evaluations took place at baseline and at days 60 and 180...
October 27, 2017: Clinical Oral Investigations
Kaitlyn Campbell Shaw, Brian L Howes, David Schlezinger
New England estuaries provide essential feeding grounds and nursery habitat for important recreational and commercial species. However, these functions are being altered by a recent shift in estuarine plant dominance from rooted plants to opportunistic drift macroalgae that can form dense accumulations. We hypothesize that formation of these macroalgal accumulations is controlled by the level of nutrient enrichment and the low hydrodynamic energy regime present in many estuarine basins. To test this hypothesis, we conducted temporal macroalgae surveys in eight s...
October 24, 2017: Journal of Environmental Management
Kecai Jiang, Min Li, Qile Zhao, Wenwen Li, Xiang Guo
This study validated and investigated elevation- and frequency-dependent systematic biases observed in ground-based code measurements of the Chinese BeiDou navigation satellite system, using the onboard BeiDou code measurement data from the Chinese meteorological satellite Fengyun-3C. Particularly for geostationary earth orbit satellites, sky-view coverage can be achieved over the entire elevation and azimuth angle ranges with the available onboard tracking data, which is more favorable to modeling code biases...
October 27, 2017: Sensors
Aleem K Mirza, Mohammed Ali Alvi, Ryan M Naylor, Panagiotis Kerezoudis, William E Krauss, Michelle J Clarke, Daniel L Shepherd, Ahmad Nassr, Randall R DeMartino, Mohamad Bydon
OBJECTIVES: Vascular injury is a rare complication of spinal instrumentation. Presentation can vary from immediate hemorrhage to pseudoaneurysm formation. In the literature, surgical approach to repair has varied based on anatomy, acuity of diagnosis, infection, and available technology. In this manuscript, we aim to describe our institutional experience with vascular injuries in thoraco-lumbar spine surgery. PATIENTS AND METHODS: We report our institutional experience of three cases of vascular injury secondary to pedicle screw misplacement and their management, as well as a review of the literature...
October 16, 2017: Clinical Neurology and Neurosurgery
Abhishek Ashok Kurdukar, Priyanka Abhishek Kurdukar, Nitin Hemchandra Dani
BACKGROUND: Root coverage (RC) procedures such as lateral positioned flap (LPF) have been used since long time but with limited success and specific indications. AIM: This prospective clinical study was designed to evaluate clinically the effect of modified LPF (mLPF) with platelet-rich fibrin (PRF) graft for the treatment of denuded root surfaces. MATERIALS AND METHODS: Fifteen isolated Miller's Class I and II gingival recession of single-rooted teeth were selected for the study...
September 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
Samed Kuka, Sebnem Dirikan Ipci, Gokser Cakar, Selcuk Yılmaz
OBJECTIVES: The aim of this randomized, controlled study was to assess the clinical effect of platelet-rich fibrin (PRF) in combination with coronally advanced flap (CAF) on root coverage, esthetics, and patient satisfaction when compared to CAF alone for the treatment of multiple Miller class I recessions. MATERIALS AND METHODS: A total of 24 patients with 52 Miller class I multiple recessions ≥ 3 mm were included and divided into CAF + PRF and CAF groups. At baseline and 12 months after surgery, recession height (RH), keratinized tissue height, gingival thickness (GT), and mean and complete defect coverage were evaluated...
October 20, 2017: Clinical Oral Investigations
Ecp Chedgy, G Lowe, R Tang, C Krebs, A Sawka, H Vaghadia, M E Gleave, A I So
Introduction Surgically inserted rectus sheath catheters (RSCs) are used increasingly for analgesia after cystectomy and other abdominal surgery. Currently, there is little information on the optimal positioning of RSCs to allow maximal spread of local anaesthetic. This study sought to assess the spread of dye injected via RSCs and to highlight the extent of its coverage in a fresh unembalmed cadaveric cystectomy model in order to confirm the nerve endings that are likely to be anaesthetised with RSCs. Methods Four cadavers underwent lower midline incision with limited bladder mobilisation...
October 19, 2017: Annals of the Royal College of Surgeons of England
Surbhi Garg, Sachit Anand Arora, Shivjot Chhina, Padam Singh
BACKGROUND: Gingival recession involves both soft tissue and hard tissue loss. In this evolutionary era of dentistry, newer techniques have evolved for complete coverage of isolated recession defects. Since 2012, vestibular incision subperiosteal tunnel access (VISTA) technique was used with various regenerative membranes to treat multiple recession defects (MRDs). Platelet-rich fibrin (PRF) membrane, a pool of growth factors but have any added advantage to recession coverage techniques is controversial...
July 2017: Contemporary Clinical Dentistry
Sally Abd-ElMeniem El-Haddad, Mohammad Abd-ElHakeem El-Shall
Gingival recession is defined as an apical displacement of the gingival margin beyond the cementoenamel junction leading to serious consequences, including exposure of the root surface, loss of periodontal attachment, root sensitivity to hot and cold air, and esthetic problems. The aim of this study was to evaluate the long-term effect of pedicled buccal fat pad (PBFP) alone and with Emdogain in covering severe gingival recession defects and restoring tooth function. A total of 10 severe buccal recession defects in maxillary first molars were selected to be treated with PBFP, with Emdogain (group I; n = 5) or alone (group II; n = 5)...
2017: International Journal of Periodontics & Restorative Dentistry
Logan C Krajewski, Ryan P Rodgers, Alan G Marshall
Here, we present atmospheric pressure photoionization (APPI) Fourier transform ion cyclotron resonance (FTICR) mass analysis of a volcanic asphalt sample by acquiring data for 20 Da wide mass segments across a 1000 Da range, stitched into a single composite mass spectrum, and compare to a broad-band mass spectrum for the same sample. The segmented spectrum contained 170 000 peaks with magnitude greater than 6σ of the root-mean-square (rms) baseline noise, for which 126 264 unique elemental compositions could be assigned...
November 7, 2017: Analytical Chemistry
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