Microleakage refers to the penetration of bacteria, fluids, molecules, or ions between a dental restoration and the adjacent tooth surface, which can lead to secondary caries, tooth sensitivity, and restoration failure. It is a critical factor in the longevity and success of dental restorations, influencing the choice of materials and techniques used in restorative dentistry.

Microleakage

penetration of bacteria

fluids

Molecules are the smallest units of a chemical compound that retain the composition and chemical properties of that compound, formed when two or more atoms join together chemically. They play a crucial role in the structure and function of all matter, from the simplest gases to the most complex biological organisms.

molecules

ions

Dental restoration involves repairing or replacing damaged or missing teeth to restore function, aesthetics, and oral health. It encompasses a range of procedures and materials designed to mimic natural teeth and improve the patient's quality of life.

dental restoration

adjacent tooth surface

Secondary caries, also known as recurrent caries, occur at the margins of existing dental restorations due to microleakage, plaque accumulation, or inadequate oral hygiene. They are a leading cause of restoration failure and require early detection and management to prevent further tooth damage and potential loss of the restoration.

secondary caries

Tooth sensitivity is a common dental condition characterized by discomfort or pain in teeth when exposed to certain stimuli like hot, cold, sweet, or acidic foods and drinks. It often results from enamel wear or gum recession, which exposes the dentin layer of the tooth, leading to heightened sensitivity.

tooth sensitivity

Restoration failure occurs when efforts to return a system, environment, or object to its original state are unsuccessful, often due to insufficient resources, incomplete understanding of the original conditions, or external factors that impede the process. This concept is critical in fields like ecology, heritage conservation, and data recovery, where the integrity and sustainability of the restoration efforts are paramount.

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