The objective of the present study was to determine the clinical reasons leading to the decision of dental restoration placement and replacement. It was a descriptive case series study and was carried out from October 2010 to July, 2011 Sampling: Non-probability convenience sampling. From the city of Lahore, 30 dental clinics were selected randomly, after dividing the metropolis into six admini...

In a clinical trial, 1544 Class II amalgam restorations were inserted. In this study 1213 restorations were evaluated after 15 years and the reasons for replacement were registered. Attention was also paid to patient drop-out and patients' variables such as gender, filling degree, type of tooth (premolar vs molar), type of restoration (MO or DO vs MOD), jaw (upper vs lower) and the patients' op...

BACKGROUND A discrepancy in leg length and femoral offset restoration is the leading cause of patient dissatisfaction in hip replacement surgery and has profound implications on patient quality of life. The aim of this study is to compare biomechanical hip reconstruction in hip resurfacing, large-diameter femoral head hip arthroplasty and conventional total hip replacement. METHOD Sixty patie...

Replacement of single missing teeth with an implant-supported restoration is recognized as a highly successful treatment. An impression technique for peri-implant soft-tissue replication in an anterior zone is described. The technique involves use of an interim restoration as an abutment for the final impression. This allows accurate duplication of the soft tissues and fabrication of a final re...

1. Discusses the properties of enamel and dentin and their role in adhesive dental restoration;2. Chapters also examine the wear properties of dental ceramics, glasses and bioactive glass ceramics for tooth repair and replacement;3. Dental composites and antibacterial restorative materials are also considered;4. Provides a concise overview of non-metallic biomaterials for dental clinicians, mat...

OBJECTIVE To determine the reasons for replacement of composite resin restorations and evaluate the association between the reasons for replacement of restorations with gender, duration of failure and different class of cavities. STUDY DESIGN Cross-sectional study. PLACE AND DURATION OF STUDY Operative Department of Fatima Jinnah Dental Hospital, Karachi, from January to May 2009. METHODO...

The longevity of dental restorations is largely dependent on the continuity at the interface between the restorative material and adjacent tooth structure (the restoration margin). Clinical decisions on restoration repair or replacement are usually based upon the weakest point along that margin interface. Physical properties of a restorative material, such as polymerisation shrinkage, water sor...

Whole-organ regeneration has great potential for the replacement of dysfunctional organs through the reconstruction of a fully functional bioengineered organ using three-dimensional cell manipulation in vitro. Recently, many basic studies of whole-tooth replacement using three-dimensional cell manipulation have been conducted in a mouse model. Further evidence of the practical application to hu...

Recently, some attractive primal-dual algorithms have been proposed for solving a saddle-point problem, with particular applications in the area of total variation (TV) image restoration. This paper focuses on the convergence analysis of existing primal-dual algorithms and shows that the involved parameters of those primal-dual algorithms (including the step sizes) can be significantly enlarged...