Evaluation of Solubility of Luting Cements in Different Solutions.

OBJECTIVE: To evaluate and compare the solubility of three luting cements in three different solutions: distilled water and artificial saliva with different pH values (7.4 and 3.0). MATERIALS AND METHODS: Resin-modified glass-ionomer cement (GC Fuji Plus) and two resin cements (Multilink Automix and Variolink II) were used. A total of 45 specimens, 15 specimens (15x1 mm) for each cement, were prepared according to ISO standard 4049:2009. The solubility of the cements was calculated by weighing the specimens before and after immersion and desiccation. Values of solubility in water (Wsl) in microgram/mm3 for each of the five specimens were calculated using the following formula (ISO 4049:2009): Wsl=(m1-m3)/V. The Mann-Whitney U nonparametric statistical method and Post hoc sample comparisons were applied. RESULTS: GC Fuji Plus showed statistically significant higher solubility in comparison with Variolink II and Multilink Automix in all three solutions. In acidic artificial saliva (pH 3.0) Multilink Automix showed significantly higher values of solubility compared to Variolink II (P<0.016). By studying the effect of pH value on the solubility of GC Fuji Plus cement, significantly higher values of solubility in pH 3.0 artificial saliva were confirmed (P<0.009). The influence of the surrounding pH value on the solubility of the resin cements Multilink Automix and Variolink II was researched. No statistically significant difference was found. CONCLUSION: Solubility values were mainly influenced by the proportion of hydrophilic matrix, the type and composition of filler, and the pH value of the solutions.

Radiological Evaluation of Dental Age Assessment Based on the Development of Third Molars in Population of Bosnia and Herzegovina.

OBJECTIVES: The development of third molars can be helpful in dental age estimation of adolescents and in early adult period. We tested the repeatability and accuracy of the three dental age radiographic methods (Olze, Demirjian and Solari and Abramovitch) and evaluated which method is more useful. We also aimed at testing to find the correlation of estimated dental and chronological age by these three methods. MATERIAL AND METHODS: The orthopantomographs (OPGs) of 1007 individuals (8 - 25 years) were divided into two groups (cca 500 OPGs) - one group of OPGs has been presented with all four third molars, while another one was registered with third molar/s hypodontia. And all of OPGs were assessed, to verify the three methods (Olze, Demirjian and Solari and Abramovitch) for age estimation based on third molar development. RESULTS: There was a high Spearman's correlation coefficient between stages of development of wisdom tooth and chronological age of subjects by all these three methods. CONCLUSION: We may recommend using third molars for assessing the dental age by Olze, Demirjian and Solari and Abramovitch dental method as well, on Bosnian and Herzegovinian population.

The Influence of Gender on the Cortical Width of the Lower Border of the Mandible and the Mandibular Cortical Index.

OBJECTIVE: To evaluate the influence of gender on the mental index (MI) and the mandibular cortical index (MCI). METHODS: In this study, there were 120 subjects (43 male and 77 female subjects), who had undergone a dental panoramic radiograph examination for the needs of diagnosis and future treatment planning. MI and MCI were determined by orthopantomograph. RESULTS: There was a statistically significant difference in MI dependent on gender. Male patients demonstrated significantly higher values for MI than female patients (right: t=4.127; P=0.0001, left: t=3.110; P=0.002). No statistically significant difference was observed for MCI dependent on gender (right: χ²=2.36 P=0.308, left: χ²=3.85 P=0.146). CONCLUSION: MI is affected by gender, but MCI is not.

Evaluation of the water sorption of luting cements in different solutions.

OBJECTIVE: To evaluate and compare the water sorption of three luting cements in three different solutions: distilled water and artificial saliva with different pH values (7.4 and 3.0). MATERIALS AND METHODS: Resin-modified glass-ionomer cement (GC Fuji Plus) and two resin cements (Multilink Automix and Variolink II) were used. A total of 45 specimens - 15 specimens (15x1 mm) for each cement were prepared according to ISO standard 4049:2009. The water sorptions of the cements were calculated by weighing the specimens before and after immersion and desiccation. RESULTS: . Nonparametric statistic methods were applied. GC Fuji Plus cement showed significantly higher values of water sorption in all three solutions of both resin cements (p<0.009) and significantly higher values of sorption in artificial saliva pH 3.0. Multilink Automix showed significantly higher values of water sorption compared with Variolink II in artificial saliva pH 7.4, and higher values of sorption in this solution compared with pH value 3.0. CONCLUSION: Water sorption values are mainly influenced by the proportion of hydrophilic matrix, the type and composition of filler, and the pH value of solutions.

Radiographic Evaluation of Crestal Bone Loss Around Dental Implants in Maxilla and Mandible: One Year Prospective Clinical Study.

PURPOSE: The aim of the study was to analyze the amount of maxillary and mandibular crestal bone loss around Bredent Sky Blue type of implants of different dimensions one year after implantation. MATERIALS AND METHODS: 36 implants of diameter 3.5 x 10 mm were inserted in the maxilla and 12 in the mandible. 52 implants of diameter 4.0 x 8 mm were inserted in the maxilla, and 61 in the mandible (two-stage implant surgery). RESULTS: No statistically significant differences were found between the right and left side of the maxilla and between the right and left side of the mandible at the implant sites regarding distal and mesial bone losses as shown by analysis of variance (ANOVA). CONCLUSION: Statistically significant differences were found between anterior maxilla, posterior maxilla and anterior mandible and posterior mandible at implant sites regarding distal and mesial bone losses as shown by analysis of variance (ANOVA).

Measurements of Implant Stability Following Sinus Lift: A Pilot Clinical Study.

AIM: The aim of this study was to evaluate the implant stability of Bredent Sky Blue implants of different diameters following one stage sinus lift procedure. MATERIAL AND METHODS: This study included 9 male patients with an existing indication for unilateral or bilateral sinus lift procedure. As grafting materials, combination of allograft material MinerOss® cortical & cancellous and Ossceram nano were used. RESULTS: All implants were considered successful and ISQ levels were measured by Osstell ISQ device. The ISQ values were from 68 to 84. The mean values of stability of Bredent Sky Blue implants of different diameters following one stage sinus lift procedure were 77.73 ± 2.93 (MD) and 77.98 ± 2.72 (VO).

Assessment of patient's satisfaction with the partial removable denture therapy / Avaliação da Satisfação do Paciente com o Uso de Prótese Parcial Removível

Objetivo: Avaliar a satisfação do paciente portador de prótese parcial removível com relação à retenção, estética, fala, mastigação e conforto da prótese. Avaliou-se ainda a influência de fatores, tais como o uso de prótese dentária anterior, idade, sexo, estado civil, escolaridade, presença de doença crônica e tabagismo.Método: O estudo foi feito na Clínica do Departamento de Prótese Removível da Faculdade de Medicina Dentária em Sarajevo. Foram analisados 75 pacientes portadores de prótese parcial removível, os quais responderam a um questionário contendo informações referentes ao uso de prótese, idade, sexo, estado civil, escolaridade, presença de doença crônica, tabagismo, os quais foram classificados com notas de 1 a 5.Resultados: A nota média mais alta foi dada para a fala com prótese removível superior (4,73), e a menor foi para a mastigação com ambas as próteses (3,97). Considerando a mastigação com próteses parciais, as mulheres estavam mais satisfeitas do que os homens.Conclusão: Os pacientes estão em sua maioria satisfeitos com suas próteses dentárias, as quais foram julgadas como satisfatórios pelo cirurgião-dentista. Existem diferenças entre os sexos com o nível de satisfação com as próteses com relação à mastigação

Objective: The aim of this study was to assess patient's satisfaction with retention, aesthetics, chewing, speech and comfort of wearing removable partial denture. Also, the aim of this study is to assess the influence of factors, such as previous wearing of denture, age, gender, marital status, level of education, presence of chronic disease and smoking habits on patient's satisfaction with therapy.Method: Study was done at Clinic and Department of Removable Prosthodontics, School of Dental Medicine in Sarajevo. In study were involved 75 patients who have removable partial denture. They filled out questionnaire with personal data about wearing of the denture, age, gender, marital status, level of education , presence of chronic disease, smoking habits and they graded some aspects of wearing denture with grade from 1 to 5.Results: The highest average grade is given for speech with upper removable denture(4.73), and the lowest was for chewing with both dentures (3.97). Considering the chewing with partial dentures, women were more satisfied then men.Conclusion: Patients are mostly satisfied with their dentures, which are judged as satisfactory by dentist. There is difference between patients of different gender in a level of satisfaction with their dentures in chewing