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Purpose: To explore the effect of in situ synthesized particulates on a zirconia surface on the bonding properties between zirconia and porcelain.Materials and Methods: Presintered yttrium-stabilized tetragonal zirconia (Y-TZP) was cut into slices and bars and polished with 1,200-grit silicon carbide abrasive paper. Samples were randomly divided into six groups (C, I1, I3, I5, I7, and I9) according to immersion time in hydrofluoric acid solution (0, 10, 30, 50, 70, and 90 seconds, respectively). Then, the samples were placed in calcium chloride solution for 90 seconds and dipped in sodium hydroxide solution at 80°C for 2 hours. After sintering, the surface topography and roughness were examined. After the porcelain was fired, the bonding interface was observed, and cross-sectional microhardness was measured. The shear bond strength of the zirconia to porcelain was evaluated, and failure modes were classified. A 3-point bending test was applied to confirm the effects of the treatment on the mechanical properties. The above data were statistically analyzed.Results: Polycrystalline particulates were synthesized on the zirconia surface. The surface roughness values increased as the immersion time of the samples in hydrofluoric acid increased. The cross-sectional microhardness decreased gradually in the experimental groups. Group I7 showed an elevated bond strength (27.02 ± 2.44 MPa). Mainly mixed failure mode was obtained in the experimental groups. The Weibull characteristic strength for the experimental groups was higher than that of group C. The flexural strengths were not significantly different among the groups.Conclusions: In situ synthesized polycrystalline particulates on zirconia could effectively improve the bonding between zirconia ceramics and porcelain without significantly decreasing the mechanical properties. [ABSTRACT FROM AUTHOR]

Aims: A meta‐analysis was carried out to review and identify correlates of stigma in poststroke patients. Background: Patients suffer from impaired physical functions and sequelae of stroke. Stroke‐related stigma hinders the recovery process and produces poorer clinical outcomes of stroke, leading to compromised quality of life. Design: A systematic review and meta‐analysis was reported by following PRISMA 2020 guidelines. Review Methods: Nine databases were searched from their inception to May 2021 to identify studies focused on the relationships among demographics, disease‐related factors, psychosocial factors and poststroke stigma. Included studies were assessed by using the Agency for Healthcare Research and Quality (AHRQ) scale. The statistical software R studios were used to perform statistical analysis. Results: Nineteen studies were included in the meta‐analysis. Four demographic factors (age, caregiver, residence, monthly income), seven stroke‐related characteristics (type of stroke, mRS, ADLs, stroke duration, recurrence, sequelae, chronic disease comorbidity) and three psychosocial factors (depression, social support, quality of life) showed significant associations with stroke‐related stigma. Conclusions: The results of our study can serve as a foundation for designing interventions to reduce stigma and improve the overall quality of life of poststroke patients and may produce positive clinical outcomes. Healthcare professionals should be aware of stroke patients who are characterised by correlates of stigma. Relevance to clinical practice Poststroke patients showed a moderate‐to‐high level of stigma, and this issue warrants more attention. This review provides a preliminary foundation for healthcare professionals to develop interventions to address stroke‐related stigma by focusing on demographic, disease‐related and psychosocial factors. Additionally, stigma identification should be a part of clinical nursing evaluation. The involvement of clinical and community nursing is very important to screen stroke‐related stigma and pay attention to this population. [ABSTRACT FROM AUTHOR]

Aims: To systematically review and synthesise the findings of qualitative research exploring experiences of dysphagia from stroke patients' perspectives. Background: Poststroke patients with dysphagia are suffering from impaired physical functions and heavy psychological burden, and they are living with compromised quality of life. Through synthesising qualitative studies to fully portrait the experiences of poststroke patients living with dysphagia, we can care better for this population. Design: A systematic review and synthesis of qualitative studies reported by following ENTREQ. Review Methods: Five electronic databases (CINAHL, Embase, PubMed, Web of Science and Cochrane Library) and three Chinese databases (CNKI, VIP and Wanfang) were searched from inception until January 2021. Qualitative studies were included if they were related to the experiences of poststroke patients with dysphagia. The Joanna Briggs Institute Qualitative Assessment and Review Instrument (JBI‐QARI) was used to appraise study quality. Data were synthesised using the Thomas and Harden method thematic and content analysis. Results: Five studies were included in the meta‐synthesis. Four analytical themes were identified: life changes after dysphagia, coping with social events, rebuilding a normal life and limited professional services. Conclusions: More attention should be given to psychological health and social interaction in poststroke dysphagia patients. Healthcare professionals, especially nurses, should make joint efforts to provide patients with dysphagia‐related knowledge and long‐term individualised support. To improve the quality of life of dysphagia patients, further research should implement high‐quality interventions based on dysphagia experience and clinical treatment. Relevance to clinical practice: These findings outline the changes in poststroke patients with dysphagia. Nurses as the first‐line force, should deliver comprehensive and individualised intervention for managing physiological and psychosocial symptoms of patients. [ABSTRACT FROM AUTHOR]

Purpose: To evaluate the accuracy of intraoral scanners by comparing the marginal fit of 70 all-ceramic crowns fabricated from both conventional impressions and intraoral scans., Materials and Methods: A total of 70 posterior teeth requiring single-crown restorations randomly underwent either intraoral scanning or conventional impression-taking, followed by laboratory scanning of the casts in a parallel-group randomized controlled trial (RCT). Subsequently, 70 monolithic all-ceramic crowns were CAD/CAM fabricated; only the impression technique differed. The marginal fit, internal fit, adjustment time required for insertion and occlusal contacts, and visual analog scale (VAS) scores assessing dentists' satisfaction with the crowns were clinically evaluated by a calibrated examiner who was blinded to the groups. Data were analyzed using independent samples t test and likelihood-ratio test or Fisher exact test. All tests were performed with α = .05., Results: The mean marginal fit with intraoral scanning (57.94 Å} 22.51 μm) was better than with diagnostic cast scanning (82.98 Å} 21.72 μm). The difference was statistically significant (P = .000). The differences in internal fit, adjustment time for crown insertion and occlusal contacts, and VAS scores were also significant, and the secondary outcomes were in favor of intraoral scanning., Conclusions: Within the limitations of this clinical trial, CAD/CAM-fabricated single-tooth restorations in the posterior region produced with an intraoral scanning technique using TRIOS were found to be a more accurate, efficient alternative to restorations based on conventional impressions in combination with the laboratory scanning technique.