Determination of illness cognition levels in patients with maxillofacial area defects

The aim of this study was to measure the illness cognition of patients with defect in the maxillofacial region. Eighty patients participated in this study. Written informed consent was obtained from patients with maxillofacial area defect, and the patients were filled in with the guidance of the researchers. Illness Cognition Questionnaire (ICQ), forms measuring the illness awareness of the patients were completed.  The study was conducted independently of demographic characteristics. The statistical software SPSS (Statistical Package for Social Sciences, Version 20, Chicago IL, USA) was used for calculations. At the end of the study, ICQ scores in patients with maxillofacial defect were as follows: There was a statistically significant intra class correlation of 88.6% (0.843-0.942) among the Helplessness scale scores of the participants. There was a statistically significant intra class correlation of 80.3% (0.728-0.863) among the Acceptance scale scores of the participants. There was a statistically significant intra class correlation of 0.752 % (0,657-0,827) among the Perceived benefits scale scores of the participants. Patients with maxillofacial defects will focus on the disease cognition "Helplessness" category. In patients with relationship maxillofacial defect, the rate of helplessness (88.6%) was higher than acceptance (80.3%) and perceived benefit (0,752 %)

Effects of saliva and nasal secretion on some physical properties of four different resin materials

Objective: Aim of this study was to evaluate possible effects of saliva and nasal secretion on some physical properties, such as sorption, solubility, surface hardness and colour change on four different resin-based materials over a certain time period. Materials and Methods: A total of 128 disc-shaped specimens with a diameter of 50mm and thickness of 0.5mm were tested to evaluate sorption and solubility (ISO-1567). The specimens were stored in different solutions prior to testing. Surface hardness measurements were performed by using a Vickers hardness testing machine. A total of 20 cylindershaped test specimens with a diameter of 13 mm and thickness of 1 mm were prepared to evaluate colour change (?E). Analysis of variance was used to determine significant differences among groups. Paired t and Tukey Post-Hoc tests were performed to investigate significant differences among subgroups at all time intervals (p<0.05). Results: It was found that while the percentage absorption value at T7(7 days) of the auto-polymerizing (A) groups storaged in artificial saliva + nasal secretion were the highest (0.057±0.119), the percentage absorption value at T15(15 days) of the D groups storaged in artificial nasal secretion were the lowest (0.013±0.09). Besides, it was found that the percentage solubility value at T30(30 days) of visible ligth-cusing resin (VLC) groups storaged in artificial nasal secretion were the highest (0.016±0.003), and the percentage solubility value at T1(1 day) of the D groups storaged in distilled water were the lowest (0.01±0.02). While the highest hardness value was of T0(Dry) in group heat-polymerizing (H) (36.19±1.35), the lowest hardness value was of T0 in group D (9.83±2.48). When ?E values analysed for each group, VLC group showed the highest values (23.78±5.05) (p<0.05), group D showed the lowest values (9.06±2.82) in time (between the T0 and T30). Conclusion: The new polyamide resin was observed to show better physical properties when compared with other materials

Management of Obstructive Sleep Apnea with a Mandibular and Tongue Advancement Splint (MTAS) in a Completely Edentulous Patient. A Clinical Report

WOS: 000207914400009PubMed ID: 19210308Treatment of obstructive sleep apnea (OSA) in dentate patients using a mandibular advancement splint (MAS) from mandibular repositioners has been documented in detail. Nevertheless, studies about completely edentulous patients with OSA are sparse. This clinical report describes a clinical and laboratory method for producing a functional splint combining an MAS and a tongue-retaining device with an individualized tongue tip housing and discusses the rationale for using such a device

Comparative effects of two different artificial body fluids on Candida albicans adhesion to soft lining materials

WOS: 000278244000013PubMed ID: 20379032This study investigated the C. albicans adhesion to cold- and heat-polymerized soft lining materials that were initially incubated in two different artificial body fluids, namely saliva and nasal secretion, and examined the surface roughness the materials (cold and heat polymerized soft liner) tested in vitro. Cold (Visco Gel) and heat-polymerized (Molloplast B) soft liner specimens (N=32, n=8 per group) (10x10x1.5 mm) were randomly produced to express the relationship between surface roughness and contamination, and influence of body fluids, and incubated in 1.5 ml contaminated solutions for 2 h. After fixation, all of materials were evaluated under optical microscope (x400) and SEM. Surface roughness measurements were examined with profilometre for each material. Data were analyzed using two-way ANOVA, Tukey's HSD and Dunnett T3 tests (alpha=0.05). Material type (p<0.05) and contamination media (p<0.05) showed a significant influence on the C. albicans adherence. The surface roughness of cold polymerized soft liner (Visco Gel) was significantly higher than heat-polymerized soft liner (Molloplast B) (p<0.05)

The Effect of a Mandibular Advancement Splint on Electromyographic Activity of the Submental and Masseter Muscles in Patients with Obstructive Sleep Apnea

WOS: 000272556500008PubMed ID: 19918594Purpose: The effectiveness of an appliance for the treatment of obstructive sleep apnea (OSA) shows inordinate interindividual differences. Also, its therapeutic effects still remain unresolved. This study examined and compared the effects of a mandibular advancement splint (MAS) on the masseter and submental muscles of patients with mild and moderate OSA. Materials and Methods: Twenty OSA patients (10 mild and 10 moderate) who refused or did not tolerate nasal continuous positive airway pressure were randomly selected among individuals whose apnea-hypopnea indices (AHIs) were determined at the sleep laboratory of the Department of Chest Diseases, Ege University, before the study. Two polysomnography (PSG) sessions were performed and evaluated: the first without an MAS for the first half of the night to determine baseline muscle activity and the second with an MAS for the other half of the night to follow the condition of muscle activity. Electromyograms (EMGs) of the sum of the submental musculature and masseter muscle were measured with PSGs. The highest EMG amplitudes of the muscles and their AHIs were recorded before and after use of the appliance. Data were analyzed statistically using a t test. Results: After insertion of the MAS device, EMG amplitudes increased significantly in the submental (P < .05) and masseter muscles (P < .05) of both mild and moderate OSA patients. However, the increase in muscle activity in the mild OSA group was significantly different from the moderate OSA group (P < .05). Accordingly, the mean EMG amplitude during moderate apnea episodes was lower than mild both with and without the appliance. After insertion of the MAS, the mean AHI in both mild and moderate OSA patients decreased significantly from baseline recordings (P < .05). Patients reported a favorable sleeping pattern and no dislodgement of the appliance during sleep. Conclusion: The MAS activated the masseter and submental muscles during sleep and prevented the upper airway from collapsing. The prosthetic appliance was useful in the treatment of both mild and moderate OSA syndrome. Int J Prosthodont 2009; 22: 586-593