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The characteristics of 3-dimensional (3D) cultured periodontal ligament stem cells derived from permanent teeth (pPDLSCs) and supernumerary teeth (sPDLSCs) were compared and evaluated in this study. pPDLSCs and sPDLSCs were cultured in an ultra-low attachment 6-well plate, and the changes in morphology and size were observed under an optical microscope for 14 days. Cell counting kit-8 was used to quantitatively evaluate cell viability, and a live/dead assay was performed for the qualitative assessment. The degrees of osteogenic, chondrogenic, and adipogenic differentiation of pPDLSCs and sPDLSCs were also assessed. The pPDLSCs and sPDLSCs were initially spherical, and sPDLSCs were smaller than pPDLSCs. The viability of pPDLSCs decreased by 47.9% (day 3) and 10.4% (day 7), whereas that of sPDLSCs decreased by 34.3% (day 3) and 2.5% (day 7) compared to the percentage on Day 1. No significant difference in osteogenic differentiation was found (p = 0.94); however, significant differences in adipocyte and cartilage differentiation were observed (p = 0.003 and p = 0.013, respectively). Within the limitations of this study, sPDLSCs and pPDLSCs exhibited multilineage differentiation capacities, including osteogenic, chondrogenic, and adipogenic differentiation, in 3D culture. Overall, pPDLSCs should be further investigated as a source of stem cells for tissue engineering and regenerative medicine. [ABSTRACT FROM AUTHOR]

Pulpectomy is a common treatment for severe carious lesions in primary molars. Care should be taken during pulpectomy of the primary teeth for successive permanent teeth. This case series report aimed to describe the cases of three patients who experienced excessive extrusion of canal filling materials and file separation during primary molar pulpectomy. The presence of separated files or excessive overfilling materials observed around successive permanent tooth germs leads to underdevelopment and may trigger cystic changes owing to abscess formation. The most important aspect is to preserve the unerupted successive developing permanent tooth. Therefore, clinicians should consider the anatomy of the primary molars prior to endodontic treatment, be careful when manipulating instruments during pulpectomy, provide appropriate treatment if iatrogenic incidents occur during endodontic treatment, and perform close follow-up to ensure the successful development and eruption of subsequent permanent teeth. [ABSTRACT FROM AUTHOR]

Recovery following an implantable cardioverter defibrillator (ICD) impacts both the patient and partner, often in divergent ways. Patients may have had a cardiac arrest or cardiac arrhythmias, whereas partners may have to perform CPR and manage the ongoing challenges of heart disease therapy. Currently, support for post-ICD care focuses primarily on restoring patient functioning with few interventions available to partners who serve as primary support. This descriptive study examined and compared patterns of change for both patients and partners during the first year post-ICD implantation. For this longitudinal study, the sample included 42 of 55 (76.4 %) patient-partner dyads who participated in the 'usual care' group of a larger intervention RCT with patients following ICD implant for secondary prevention of cardiac arrest. Measures taken at across five time points (at hospital discharge and at 1, 3, 6 and 12 months follow up) tracked physical function (SF-12 PCS, symptoms); psychological adjustment (SF-12 MCS; State-Trait Anxiety Inventory; CES-D); relationship impact (Family Functioning, DOII; Mutuality and Interpersonal Sensitivity, MIS); and healthcare utilization (ED visits, outpatient visits, hospitalizations). Repeated measures analysis of variance was used to characterize and compare outcome trends for patients and partners across the first 12 months of recovery. Patients were 66.5 ± 11.3 (mean + SD) years old, predominately Caucasian male (91 %), with Charlson co-morbidities of 4.4 ± 2.4. Partners were 62.5 ± 11.1 years old, predominantly female (91 %) with Charlson co-morbidities of 2.9 ± 3.0. Patient versus partner differences were observed in the pattern of physical health (F = 10.8, p < 0.0001); patient physical health improved while partner health showed few changes. For partners compared to patients, anxiety, depression, and illness demands on family functioning tended to be higher. Patient mutuality was stable, while partner mutuality increased steadily (F = 2.5, p = 0.05). Patient sensitivity was highest at discharge and declined; partner sensitivity increased (F = 10.2, p < 0.0001) across the 12-month recovery. Outpatient visits for patients versus partners differed (F = 5.0, p = 0.008) due most likely to the number of required patient ICD visits. Total hospitalizations and ED visits were higher for patients versus partners, but not significantly. The findings highlight the potential reciprocal influences of patient and partner responses to the ICD experience on health outcomes. Warranted are new, sound and feasible strategies to counterbalance partner needs while simultaneously optimizing patient recovery outcomes., Author(s): Cynthia M. Dougherty[sup.1] , Allison M. Fairbanks[sup.2] , Linda H. Eaton[sup.3] , Megan L. Morrison[sup.3] , Mi Sun Kim[sup.3] , Elaine A. Thompson[sup.4] Author Affiliations: (1) Biobehavioral Nursing and [...]