ABSTRACT
INTRODUCTION: Most denture fractures occur within the mouth due to resin flexural fatigue. For example, the deep labial notch at the high labial frenum causes denture breakage, as can deep scratches and generated processing stresses. The rising cost of annual prosthetic repairs is evidence that the problem of total denture fracture has not been solved. The purpose of this investigation was to evaluate the relative improvement in flexural strength between heat-cured polymethyl methacrylate (PMMA) resin reinforced with glass fibers (GF) and basalt fibers (BF) of varied orientations. MATERIAL AND METHODS: A total of 150 heat-cured acrylic resin specimens of 65x10x3 mm dimension were prepared, 30 of which were left unreinforced (Group A), 30 of which were reinforced with GF in transverse pattern (Group B), 30 of which were reinforced with GF in meshwork pattern (Group C), 30 of which were reinforced with BF in transverse pattern (Group D), and 30 of which were reinforced with BF in meshwork pattern (Group E). All of the samples were put through flexural strength testing on the universal testing machine. One-way ANOVA and the Tukey-Kramer various correlation test (= 0.05) were used in SPSS for Windows to look at the facts. RESULTS: The mean flexural strength for Group A was 46.26±2.26 MPa, 64.98±1.53 MPa for Group B, 76.45±2.67 MPa for Group C, 54.22±2.24 MPa for Group D, and 59.02±2.38 MPa for Group E. Flexural strength was impacted by both the kind of BF and GF reinforcement (F = 768.316, P = 0.001). CONCLUSION: Within the limitation of the current research, BF reinforcement outperforms GF reinforcement and unreinforced heat-cured acrylic resin in terms of flexural strength.
ABSTRACT
Objectives: The aim of the present study was to evaluate and compare oral health status of bronchial asthma patients between the age group of 8-15 years with healthy individuals and examines the relationship between the severity of asthma, dose duration, method of taking medication, and use of AeroChamber on the dental health of children diagnosed with asthma. Materials and Methods: The present cross-sectional study assessed the oral status of asthmatic patients and compared with a control group of 200 nonasthmatic patients. Both groups were matched in relation to age and gender. The oral health was assessed by measuring oral hygiene, caries status, periodontal health, and candidiasis of participants. Oral hygiene was measured by plaque index, caries assessment was done with the decayed missing filled teeth index/decayed extracted filled (DMFT/def index) and the periodontal status was measured with community periodontal index (CPI) adapted from the WHO (1997). Results: Plaque index score among asthmatics group was 1.49 ± 0.65 was significantly higher than healthy group 1.08 ± 0.57. The significant difference was noted in the mean caries (DMFT/def) score for asthmatic patients (2.31 ± 1.65/1.02 ± 0.39) and the controls (1.98 ± 1.54/0.74 ± 0.39). The CPI score was also significantly high in asthmatics (3.19 ± 1.68) in comparison to healthy individuals (2.32 ± 2.07). The candidiasis was absent in healthy individuals while it was present among 28 patients in the asthmatic group. The patients who were taking medication from longer period of time (9-12 months) had significantly worse oral health. The study result did not show any significant difference with the type of inhalation. However it showed significantly improved oral health for patients using AeroChamber in comparison to the patients not using it. Conclusion: Oral health was significantly poor in asthmatic patients in comparison with the healthy individuals. Increased frequency of asthma medication use was associated with increased likelihood of poor oral health. Use of AeroChamber improves the oral health of patients.
