bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unmet needs for visiting nurse services among older people after hospital discharge and related factors in Japan: Cross‐sectional survey
Authors: Nagata Satoko , Taguchi Atsuko , Naruse Takashi , Kuwahara Yuki , Murashima Sachiyo 
Published: April 2013

AbstractAimStudies have suggested that some home care recipients have unmet needs for visiting nurse services. In particular, such needs are greater just after hospital discharge than at other times. Thus, there is concern that there exist unmet needs for visiting nurse services among patients after hospital discharge. The purpose of this study was to investigate the current situation of unmet needs for visiting nurse services among older patients discharged from acute hospitals.MethodsThis was a cross‐sectional correlation study. Participants were patients aged 65 years or over who had been discharged from the general units in all hospitals in four prefectures in Japan after a hospital stay of 14 days or more. Nursing staff gathered the patients' information and assessed unmet needs for visiting nurse services after discharge.ResultsThere were 1594 eligible participants; 190 (11.9%) utilized visiting nurse services after discharge and 87 (5.4%) were judged to have no visiting nurse services despite a need for such services. Need for assistance in activities of daily living, presence of a respiratory disease, need for continued medical/nursing care after discharge, inadequate capacity for family caregiving, and implementation of discharge planning were related to use of, and need for, visiting nurse services.ConclusionAfter controlling for other factors, implementation of discharge planning determined the utilization of, and the need for, nursing care after discharge. Therefore, an adequate discharge planning screening system is necessary.
Product Market Threats, Payouts, and Financial Flexibility
Authors: HOBERG GERARD , PHILLIPS GORDON , PRABHALA NAGPURNANAND 
Published: April 2013

ABSTRACTWe examine how product market threats influence firm payout policy and cash holdings. Using firms' product text descriptions, we develop new measures of competitive threats. Our primary measure, product market fluidity, captures changes in rival firms' products relative to the firm's products. We show that fluidity decreases firm propensity to make payouts via dividends or repurchases and increases the cash held by firms, especially for firms with less access to financial markets. These results are consistent with the hypothesis that firms' financial policies are significantly shaped by product market threats and dynamics.
Experience with a Novel Retrograde Wiring Technique for Coronary Chronic Total Occlusion
Authors: KIM MOO HYUN , YU LONG‐HAO , TANAKA HIROYUKI , MITSUDO KAZUAKI 
Published: April 2013

AbstractObjectivesWe report our evaluation of a novel retrograde wiring technique known as the Rendezvous method.BackgroundDifferent strategies of retrograde approaches can be used to improve the success rate of recanalization of coronary chronic total occlusion (CTO). We previously introduced the Rendezvous technique as an alternative final step for a retrograde CTO procedure.MethodsFrom July 2007 to May 2010, 20 CTO patients were treated in two medical centers using the Rendezvous method, which is an alternative to the conventional final externalization method to complete the retrograde CTO procedure. It involves crossing of the guidewire through the CTO segment using 2 microcatheters.ResultsThe majority of the CTO sites were in the proximal right coronary artery (50.0%). Most of the lesions had mild to moderate calcification (95.0%) and revealed an abrupt stump with a side branch at the occlusion site. The lesion length of the occlusion was relatively long (median 27.6 mm; range of 7.1–87.3 mm). No adverse cardiac events occurred during hospitalization.ConclusionThe Rendezvous method used during the retrograde approach can be performed as an alternative to the conventional “externalization method” after the guidewire and microcatheter have crossed the occluded proximal segment into the opposite guiding catheter. (J Interven Cardiol 2013;26:254–258)
Effect of Surface Modification on the Bond Strength between Zirconia and Resin Cement
Authors: Egilmez Ferhan , Ergun Gulfem , Cekic‐Nagas Isil , Vallittu Pekka K. , Ozcan Mutlu , Lassila Lippo V.J. 
Published: April 2013

AbstractPurposeThis study aimed to evaluate the micro push‐out (μ‐PO) bond strength between zirconia and resin cement after addition of zirconia particles to increase the surface roughness.Materials and MethodsY‐TZP zirconia specimens in three experimental groups were subjected to Y‐TZP particle deposition via dipping into the milling residue suspension at different times prior to the sintering process. The dipping procedure was repeated twice for each specimen in group B, six times in group C, and ten times in group D. The specimens subjected to airborne‐particle abrasion (110 μm Al2O3, Rocatec Pre) acted as the control group (group A). All of the specimens were then bonded using adhesive resin cement (RelyX Ultimate). A μ‐PO test was used to determine the bond strength values. One‐way ANOVA at a 5% confidence level was performed for data analysis. Optical microscopy and scanning electron microscopy (SEM) were used to evaluate the failure modes and surface structure.ResultsY‐TZP particle deposition did not have a significant effect on the bond strength of the resin cement to zirconia specimens when compared to the control (p = 0.141). Higher bond strength values were observed in groups C and D than in control. The surface layer presented blister‐like porosities with openings of various diameters ranging between 2 and 4 μm.ConclusionY‐TZP particle deposition after dipping six and ten times did not improve the mean bond strength statistically but presented surface topography that may be favorable for increased micromechanical retention for adhesive resin cement.Clinical SignificanceY‐TZP particle deposition may create a more retentive surface than airborne‐particle abrasion for adhesive bonding between zirconia surface and resin cement.
Comparison of Marginal Fidelity and Surface Roughness of Porcelain Veneers Fabricated by Refractory Die and Pressing Techniques
Authors: Jha Ritu , Jain Veena , Das Taposh K. , Shah Naseem , Pruthi Gunjan 
Published: April 2013

AbstractPurposeThe aim of the present study was to compare the marginal fidelity and surface roughness of porcelain veneers fabricated by the refractory die and pressing techniques under in vivo conditions.Materials and MethodsA total of 72 veneers were prepared for anterior teeth in 12 participants. Veneers on anterior teeth in the first and second quadrants were fabricated using refractory die (group I) and pressing techniques (group II), respectively. Surface roughness was evaluated using a profilometer in three areas (cervical, mesio‐incisal, disto‐incisal) for each veneer. Marginal adaptation of all the veneers (N = 36/group) was evaluated at each margin (cervical, incisal, mesial, and distal) at 7 days and at 3 months after cementation under a scanning electron microscope (SEM) at 200× magnification.ResultsThe mean surface roughness of veneers in cervical, mesio‐incisal, and disto‐incisal areas was 0.41 ± 0.25, 0.33 ± 0.14, and 0.32 ± 0.14 μm, respectively, for group I; and 0.31 ± 0.11, 0.36 ± 0.18, and 0.29 ± 0.11 μm, respectively, for group II. Intra‐ and intergroup comparisons showed no statistically significant values for all areas (p > 0.05). In 144 margins evaluated for each group, a visible gap was present in 15 (10.4%) and 18 (12.5%) recordings at 7 days for groups I and II, respectively. They increased to 19 (13.1%) and 20 (13.8%) after 3 months. These gaps were further broken down into percent distribution of total recordings at the cervical, incisal, mesial, and distal margins. Intragroup comparison was made using the Cochrane test. The chi‐square test and Fisher's exact test were used for intergroup comparison of margins, revealing no statistical difference (p > 0.05)ConclusionWithin the limitations of the study, the surface roughness and marginal fidelity of porcelain veneers fabricated by refractory die technique and pressing technique were comparable.
Orthodontic Treatment and Implant‐Prosthetic Rehabilitation of a Partially Edentulous Patient
Authors: Farret Milton MB , Farret Marcel Marchiori , Carlesso Jhosué , Carlesso Oscar 
Published: April 2013

AbstractThis article describes the treatment of a 61‐year‐old man who had a completely edentulous maxillary arch and partially edentulous mandibular arch. The patient was orthodontically treated to correct an anterior crossbite by distalization of the mandibular teeth using a removable prosthesis serving as an anchorage unit. Subsequently, the patient received two zygomatic implants, five conventional implants in the maxillary arch, and six conventional implants in the mandibular arch. By the end of treatment, the convexity of the facial profile improved, and esthetic and functional occlusion was established.
Reverse Activated Hyrax Pressure Appliance for Treatment of a Keloid Located at Auricula Helix
Authors: Yüzbaşıoğlu Emir 
Published: April 2013

AbstractKeloids are considered aberrations of the wound healing process, and various treatment regimens are described depending on the morphology and size of the lesion. Compression therapy using custom‐made pressure clips or splints is widely used for the treatment of keloids. The most common complication of this therapy is ulceration due to excessive soft tissue pressure, resulting in delays and prolonged treatment time. This article describes the fabrication of a custom‐made pressure appliance for the treatment of a keloid located at the auricle helix. The pressure appliance can be modified to fit the auricle helix and covers the area needing pressure.
Plastic Damage Induced Fracture Behaviors of Dental Ceramic Layer Structures Subjected to Monotonic Load
Authors: Wang Raorao , Lu Chenglin , Arola Dwayne , Zhang Dongsheng 
Published: April 2013

AbstractPurposeThe aim of this study was to compare failure modes and fracture strength of ceramic structures using a combination of experimental and numerical methods.Materials and MethodsTwelve specimens with flat layer structures were fabricated from two types of ceramic systems (IPS e.max ceram/e.max press‐CP and Vita VM9/Lava zirconia‐VZ) and subjected to monotonic load to fracture with a tungsten carbide sphere. Digital image correlation (DIC) and fractography technology were used to analyze fracture behaviors of specimens. Numerical simulation was also applied to analyze the stress distribution in these two types of dental ceramics.ResultsQuasi‐plastic damage occurred beneath the indenter in porcelain in all cases. In general, the fracture strength of VZ specimens was greater than that of CP specimens. The crack initiation loads of VZ and CP were determined as 958 ± 50 N and 724 ± 36 N, respectively. Cracks were induced by plastic damage and were subsequently driven by tensile stress at the elastic/plastic boundary and extended downward toward to the veneer/core interface from the observation of DIC at the specimen surface. Cracks penetrated into e.max press core, which led to a serious bulk fracture in CP crowns, while in VZ specimens, cracks were deflected and extended along the porcelain/zirconia core interface without penetration into the zirconia core. The rupture loads for VZ and CP ceramics were determined as 1150 ± 170 N and 857 ± 66 N, respectively.ConclusionsQuasi‐plastic deformation (damage) is responsible for crack initiation within porcelain in both types of crowns. Due to the intrinsic mechanical properties, the fracture behaviors of these two types of ceramics are different. The zirconia core with high strength and high elastic modulus has better resistance to fracture than the e.max core.
Closed Hollow Bulb Obturator—One‐Step Fabrication: A Clinical Report
Authors: Buzayan Muaiyed M. , Ariffin Yusnidar T. , Yunus Norsiah 
Published: April 2013

AbstractA method is described for the fabrication of a closed hollow bulb obturator prosthesis using a hard thermoforming splint material and heat‐cured acrylic resin. The technique allowed the thickness of the thermoformed bulb to be optimized for weight reduction, while the autopolymerized seal area was covered in heat‐cured acrylic resin, thus eliminating potential leakage and discoloration. This technique permits the obturator prosthesis to be processed to completion from the wax trial denture without additional laboratory investing, flasking, and processing.
Biological Aspects as a Rule for Single Implant Placement. The 3A‐2B Rule: A Clinical Report
Authors: Rojas‐Vizcaya Fernando 
Published: April 2013

AbstractFor an implant restoration to be both esthetically and functionally successful, the prosthodontist must conduct a thorough treatment plan and complete a prosthesis design. The prosthodontist must carefully calculate the space needed for the restoration and soft tissue in the restoration process. The restoration and soft tissue are affected by the three‐dimensional (3D) position of the implant, as the implant's depth determines the ideal length of the crown. When determining the 3D position of the implant, the clinician must consider the biological aspects required to ensure the restoration's biological integration with the patient's hard and soft tissues. The restoration must be the first component considered in the treatment plan. In addition, the clinician must understand that the distance between the cervical contour (of the planned restoration) and the level of the bone will dictate how the surgical and prosthetic treatment plan is enacted. In this report, a novel Radiographic Biological Ruler© (with biological information) was used to help facilitate the treatment plan's analysis.
MicroCT Analysis of a Retrieved Root Restored with a Bonded Fiber‐Reinforced Composite Dowel: A Pilot Study
Authors: Lorenzoni Fabio Cesar , Bonfante Estevam A. , Bonfante Gerson , Martins Leandro M. , Witek Lukasz , Silva Nelson R.F.A. 
Published: April 2013

AbstractPurposeThis evaluation aimed to (1) validate micro‐computed tomography (microCT) findings using scanning electron microscopy (SEM) imaging, and (2) quantify the volume of voids and the bonded surface area resulting from fiber‐reinforced composite (FRC) dowel cementation technique using microCT scanning technology/3D reconstructing software.Materials and MethodsA fiberglass dowel was cemented in a condemned maxillary lateral incisor prior to its extraction. A microCT scan was performed of the extracted tooth creating a large volume of data in DICOM format. This set of images was imported to image‐processing software to inspect the internal architecture of structures.ResultsThe outer surface and the spatial relationship of dentin, FRC dowel, cement layer, and voids were reconstructed. Three‐dimensional spatial architecture of structures and volumetric analysis revealed that 9.89% of the resin cement was composed of voids and that the bonded area between root dentin and cement was 60.63% larger than that between cement and FRC dowel.ConclusionsSEM imaging demonstrated the presence of voids similarly observed using microCT technology (aim 1). MicroCT technology was able to nondestructively measure the volume of voids within the cement layer and the bonded surface area at the root/cement/FRC interfaces (aim 2). Clinical significance: The interfaces at the root dentin/cement/dowel represent a timely and relevant topic where several efforts have been conducted in the past few years to understand their inherent features. MicroCT technology combined with 3D reconstruction allows for not only inspecting the internal arrangement rendered by fiberglass adhesively bonded to root dentin, but also estimating the volume of voids and contacted bond area between the dentin and cement layer.
Sagittal Condylar Angle and Gender Differences
Authors: Alshali Ruwaida Z. , Yar Riaz , Barclay Craig , Satterthwaite Julian D. 
Published: April 2013

AbstractPurposeThe purpose of this study was to measure sagittal condylar inclination (SCI) in male and female participants and to assess differences between the two groups. This measurement has a clinical value in setting the articulator SCI before fabrication of indirect restorations.Materials and MethodsThe study included 32 dental students, 16 men and 16 women (aged 18 to 40 years). The participants had no signs of muscular or articular pain. SCI was recorded for participants using a CADIAX® compact 2 electronic axiograph.ResultsThe mean SCI in both men and women varied between 26.1° and 61.8°, with a mean of 41.9° (SD 7.8). The mean right SCI was 42.0° (SD 8.5), and the mean left SCI was 41.9° (SD 9.2). The mean SCI for men was 40.3° (SD 7.9), and the mean for women was 43.6° (SD 7.7). No statistically significant difference in SCI values was found between the right and left side (p = 0.995), or between the male and female groups (p = 0.133). Also, no correlation could be found between SCI and the age of the participants (r2 = 0.016, p = 0.489).ConclusionsThe mean value of SCI was within the range reported in previous studies. SCI is highly variable, but this variability does not seem to be attributed to condylar asymmetry, gender, or age of the adult participants. This high variability suggests that independent condylar measurements should be conducted for each patient instead of relying on reported average values.
Maximum Dislodging Forces of Mandibular Implant‐Assisted Removable Partial Dentures: In Vitro Assessment
Authors: Gharehchahi Jafar , Asadzadeh Nafiseh , Mirmortazavi Amirtaher , Shakeri Mohammad Taghi 
Published: April 2013

AbstractPurposeThe initial retention of implant‐assisted removable partial dentures (IARPDs) is unknown. The purpose of this in vitro study was to compare maximum dislodging forces of distal extension mandibular IARPD with two different attachments and three clasp designs.Materials and MethodsA simulated class I partially edentulous mandible was prepared with two screw‐type 3.75×12 mm implants in the first molar regions and 2 metal‐ceramic crowns on distal abutments. Fifteen bilateral distal extension frameworks were conventionally fabricated in three clasp designs (suprabulge, infrabulge, no clasp). Locator attachments were connected to the 15 denture bases with autopolymerized resin. Each specimen was subject to four types of retention pulls (main, anterior, posterior, unilateral pull) five times with a universal testing machine. Locator attachments were replaced with O‐ring attachments, and the same procedure was performed. Therefore, the study groups included: IRPD with Locator attachment and suprabulge clasp (group 1), IRPD with Locator attachment and infrabulge clasp (group 2), IRPD with Locator attachment and no clasp (group 3), IRPD with O‐ring attachment and suprabulge clasp (group 4), IRPD with O‐ring attachment and infrabulge clasp (group 5), IRPD with O‐ring attachment and no clasp (group 6). Data were analyzed using one‐way ANOVA, two‐way ANOVA, and Tukey tests.ResultsThe highest mean value was 22.99 lb for prostheses with a Locator attachment and suprabulge clasp. The lowest retentive values were recorded for IARPDs with O‐ring attachments.ConclusionThe results of this in vitro study suggest that the precise selection of attachments with or without clasp assemblies may affect the clinical success of mandibular IARPDs.
A Multidisciplinary Approach for Management of Postenucleation Socket Syndrome with Dermis‐Fat Graft and Ocular Prosthesis: A Clinical Report
Authors: Aggarwal Himanshi , Singh Kamleshwar , Kumar Pradeep , Alvi Habib A. 
Published: April 2013

AbstractA contracted eye socket is a cosmetic blemish to the patient. It not only renders patients unable to wear an eye prosthesis, but also becomes a source of chronic discharge and irritation. Orbital implants allow for cosmesis and volume replacement of an enucleated or eviscerated eye. Alloplastic orbital implants are associated with potential complications, including exposure and extrusion. A dermis‐fat graft offers the advantages of relative availability and an autologous nature. This article reports on a patient suffering from severe postenucleation socket syndrome after enucleation of the bulbus with postoperative irradiation of the orbit due to retinoblastoma and its subsequent management by a dermal‐fat graft and ocular prosthesis. The purpose of this article is to emphasize the usefulness of dermal‐fat grafting as a safe and stable orbital volume replacement following enucleation.
Patient and health‐care impact of a pilot rheumatic heart disease screening program
Authors: Wark Emma Kathleen , Hodder Yvonne Coral , Woods Cindy Estelle , Maguire Graeme Paul 
Published: April 2013

AimThe aim of this study was to assess the impact of a pilot screening program for rheumatic heart disease (RHD) on patient quality of life (QOL) and health services.MethodsA QOL questionnaire (CHQ‐PF28) was used to assess the impact of RHD screening on children with a potentially abnormal screening echocardiogram and matched normal controls. The health service response to a potentially abnormal screening echocardiogram and the impact of the screening program on health services was evaluated using medical record review, carer interviews and surveys of health‐care providers.ResultsQOL was assessed in 68 children. Potentially abnormal screening echocardiograms were associated with poorer QOL in the General Health Perception (P < 0.05) and Parental Impact – Emotional (P < 0.05) domains. Health services contacted 82% of children with potentially abnormal echocardiograms, and clinical review occurred in 56%. A potentially abnormal echocardiogram was associated with a change in management in 6% (2/34) of children. When surveyed, 49% of health providers were aware of the RHD screening program, 29% had seen children referred with screening abnormalities and 85% of these providers stated this had an impact on local health‐care delivery.ConclusionsThis pilot RHD screening program was associated with poorer child and carer QOL for those with potentially abnormal results, greater health provider workload and suboptimal clinical follow‐up. The adoption of screening for RHD in high‐risk populations should be approached cautiously. Further research is required to facilitate and validate improved echocardiographic diagnostic criteria for RHD and the systematic assessment of the benefits and adverse effects of such screening.
Unusual presentation of acute otomastoiditis with petrositis
Authors: Lammers Thalia HM , Krieser David M 
Published: April 2013

AbstractThe anatomical relationships of the middle ear, the mastoid air cells, the temporal bone and intracranial structures can lead to invasive infections. Acute mastoiditis is the most common intratemporal complication of acute otitis media. Timely management includes antimicrobial therapy, imaging including ultrasound and/or computed tomography, surgical consultation and intervention. There are insufficient data to provide an evidence‐based diagnostic tool for acute mastoiditis. Clinical, laboratory and microbiological differences between children with simple and complicated mastoiditis will be explored after case presentation of a 5‐year‐old boy with fever and a tender, soft‐tissue swelling over the left zygomatic arch.