Evaluation of Compressive and Flexural Strengths of Two Resin-based Core Materials with an Alkasite Material: An In Vitro Study.

AIM: To compare and evaluate the compressive and flexural strengths of two resin-based core build-up materials with an alkasite material. MATERIALS AND METHODS: ParaCore, Tetric N ceram Bulk-fill composite, and Cention N were used. A total of 90 specimens were prepared. Customized cylindrical split molds of dimension 6 ± 1 mm (height) × 4 ± 1 mm (diameter) were used to fabricate 15 samples of each core material for testing the compressive strength and rectangular split metal molds of dimensions 25 ± 1 mm (length) × 2 ± 1 mm (width) × 2 ± 1 mm (height) were used to fabricate 15 samples of each core material for testing the flexural strength. Then the samples were tested using a Universal testing machine (UTM). RESULTS: The compressive and flexural strengths of Cention N were significantly less than ParaCore® but higher than Tetric® N-CeramTM Bulk-fill core build-up material. CONCLUSION: Within the limitations of this study, it was concluded that Cention N may be used as an alternative to other core build-up materials after further in-vitro and in-vivo studies. CLINICAL SIGNIFICANCE: Cention N had the added advantage that self-cure polymerization alone was sufficient to achieve good physical properties when compared to the other two resin-based core build-up materials.

An early loaded implant-supported mandibular complete arch fixed prosthesis in a young completely edentulous patient: a case report.

The restoration of the mandibular arch up to the first molars with 5 one-piece implants presents a viable and cost-effective treatment plan in patients with adequate bone volume and favorable ridge relationships. The early loading of the implants with a provisional restoration reduces the period of edentulousness and restores the patient's ability to eat, talk, and smile effectively. Implants in younger patients prevent resorption of the residual alveolar ridge. This article presents a case report of the restoration of an edentulous mandibular arch with an early loaded implant-supported fixed restoration in a young patient.

Symptomatic Urinary Tract Infection in Diabetic Pregnant Women, Effect of the Type of Diabetes and Glycemic Control.

OBJECTIVES: To compare the prevalence of symptomatic urinary tract infection (S-UTI) in women with gestational diabetes mellitus (GDM), pregestational diabetes mellitus (PGDM), and the effect of glycemic control methods. MATERIALS AND METHODS: This is a retrospective review of women with GDM and PGDM, who had S-UTI treated at Sultan Qaboos University Hospital between January 1, 2009, and December 31, 2010. RESULTS: From a total of 639 women with diabetes mellitus (DM), 91% (n = 581) had GDM and 9% (n = 58) had PGDM. The prevalence of S-UTI was 6.7% (n = 43). The prevalence of S-UTI was 6.5% (n = 38) in women with GDM and 8.6% (n = 5) in women with PGDM. In women with GDM, S-UTI occurred in 4.6% (n = 5) of insulin users compared to 6.9% (n = 33) in noninsulin users. Differences were not statistically significant. CONCLUSION: The prevalence of S-UTI is similar in women with GDM and PGDM regardless of the method used for glycemic control.

Hybrid Implant: A Novel Implant System.

INTRODUCTION: Replacement of missing tooth has evolved from removable dentures to fixed dentures and recently to dental implants. The need of sufficient bone around the endosseous implant is critical for the success of the implant. The present study was aimed to evaluate the efficacy of a novel implant (HYBRID IMPLANT-submitted for patency) for replacement of the missing teeth. MATERIALS AND METHODS: 1. Research design A prospective research design with a follow up after 1st week ,2nd week ,3rd week,1st month ,3rd month,6th month and 1st year postoperatively. 2. Sampling method Population: All patients who reported for replacement of missing teeth. Inclusion criteria 1. All patients above the age group of 16years 2. Patients who need replacement of single or multiple teeth in the anterior or posterior region of the maxilla and mandible. Exclusion criteria 1. Medically compromised patients. 2. Patients having craniofacial syndromes. 3. Sample size 5 patients were selected taking into consideration the inclusion and exclusion Criteria. Results PAIN All the patients were non symptomatic during the 1st month to 1st year postoperative periods. MOBILITY: We experienced mobility during the 1st and 2nd postoperative periods where the implants were inserted in the mandibular molar region. BONE LOSS: Radiographic assessment showed no bone loss during the postoperative periods. CONCLUSION: The novel implant (hybrid implant) showed good stability and minimum patient discomfort during one year postoperative period evaluation. The implant system leads to new prospect in the field of prosthetic rehabilitation.

Anatomy of an urban waterbody: a case study of Boston's Muddy River.

The objective of this study was to characterize and understand the water quality of Boston's Muddy River prior to restoration, to help guide those activities and evaluate their success. We use a combination of monitoring, data analysis and mathematical modeling. The seasonal pattern of temperature, pollutant signatures (identified using a principal component analysis), correlations with precipitation and spatial patterns all point to a significant wastewater input at one of the outfalls and suggest significant receiving water impact. However, a quantitative analysis using a mathematical model (QUAL2K) suggests this source is not significant. Rather, internal loading from algae, sediment bed and waterfowl dominate the spatial pattern of water quality. These results suggest significant improvement can be expected from planned sediment dredging. The paper provides a case study of water quality assessment in the context of urban river restoration, and it illustrates the utility of combining monitoring and data analysis with modeling.

Urban mental health services in India : how complete or incomplete?

The information about Urban Mental Health Services has been nearly nonexistent in India, although the developed countries have been focusing on programmes for "Healthy Cities". The initiative taken as part of the WHO-ICMR Pilot Project on Urban Mental Health Services, with a public health perspective is being shared. The objectives of the Health Services Research (HSR) Arm of the project were to study the distribution and the availability of tertiary Mental Health Services, availability of human resources, average service load, mental health service gap, and perceptions of the users and the service providers, regarding the barriers in accessibility of mental health services, unmet service needs and strategies for improvement.The Research Methods involved Mapping Exercises with estimation of Service Loads and Qualitative Research Methods (QRM) like In-Depth Interviews (IDIs), Key Informant Interviews (KIIs), Free Listing and Focused Group Discussions (FGDs). The results indicate uneven availability of mental health services, human resource deficit specially for non-medical mental health professionals and mental health service gap (82% to96%). The average service load in the specialist mental health services is largely carried by the Govt. sector (half to two thirds), followed by the private sector (one third to half), with only a small portion by the NGO sector. The average mental health service load in the primary care general health services is largely carried by the private sector, with significant contribution from the non-formal service providers. The barriers to access, unmet needs and possible strategies as perceived by the community, users and service providers have been identified. The findings are discussed in the context of the mental health programmes and the public policy issues. The implications of the conclusions which suggest that Urban Mental Health Services are far from complete are highlighted.