background and aims. the present study evaluated the most common reasons for replacing amalgam restorations in a university clinic. materials and methods. a total of 217 restorations which needed to be replaced were clinically and radiographically evaluated in a period of 4 months. the frequencies of reasons for replacing amalgam restorations were calculated: the assessed items included recurre...

background & aim: repair or replacement of restorations is one of the main necessities for health promotion. however, it has its own physical, psychological and economical side effects. the aim of this study was to investigate the prevalence of factors causing restoration replacement or repair. methods & materials: a non probable sampling was used for this cross – sectional observational descri...

a virtual absence of palliative, preventive and restorative care characterizes juvenile oral health care in most of the developing and underdeveloped countries. consequently, carious cavities remain untreated, which leads to pain, discomfort and functional limitation. it further, impacts negatively upon general health and cognitive development apart from causing decreased masticatory efficiency...

This paper summarizes a new Bayesian method for edge-preserving image restoration from noisy measurements. The line-site method of Geman and Geman forces region boundaries to lie along pixel boundaries, which is unnatural, particularly for 3D data. Here, we augment the intensity process with a binary \mixture site" process, which has one parameter for each pixel indicating the presence of a bou...

Park design in Iran has followed the traditional European style since the Qajar dynasty. Thefamiliarity of Iranians with the spirit of Persian gardens and the low quality of the newest parks is such that usersprefer ancient geometrical Persian gardens. Today, those responsible for the design of urban green spaces lackingexamples differing from the traditional and thus they are in need of an ade...

Many approaches to image restoration are aimed at removing either Gaussian or uniform impulsive noise. This is because both types of degradation processes are distinct in nature, and hence they are easier to manage when considered separately. Nevertheless, it is possible to find them operating on the same image, which produces a hard damage. This happens when an image, already contaminated by G...

This paper summarizes a new Bayesian method for edge-preserving image restoration from noisy measurements. The line-site method of Geman and Geman forces region boundaries to lie along pixel boundaries, which is unnatural, particularly for 3D data. Here, we augment the intensity process with a binary “mixture site” process, which has one parameter for each pixel indicating the presence of a bou...