Discoloration patterns in dental restorations linked to common beverages and spices
DOI:
https://doi.org/10.18203/2394-6040.ijcmph20260011Keywords:
Discoloration, Dental restorations, Staining agents, Resin composites, Aesthetic dentistryAbstract
Discoloration of dental restorations remains a major concern in aesthetic dentistry, driven largely by the interaction between restorative materials and commonly consumed staining agents such as beverages and spices. The degree and permanence of staining depend on several variables including the chemical structure of chromogens, the composition and surface characteristics of restorative materials, and patient-related factors such as oral hygiene and dietary habits. Resin-based composites are particularly vulnerable to color change due to their hydrophilic resin matrix and capacity for pigment absorption, especially when exposed to substances like coffee, red wine, and turmeric. In contrast, ceramics display better color stability, though they can still stain when surface glaze is compromised. Glass ionomer cements, frequently used in non-load bearing areas, demonstrate the highest susceptibility due to their porous structure and water sorption. The mechanism of discoloration involves both surface adsorption and deeper absorption, influenced by the acidity, temperature, and duration of exposure to staining agents. Surface treatments, including polishing and glazing, significantly affect the resistance of restorations to external pigmentation. Clinical management focuses on minimizing aesthetic deterioration through material selection, polishing techniques, dietary counseling, and regular maintenance. While polishing can address superficial stains, intrinsic discoloration often requires restoration replacement. Bleaching therapies pose additional challenges, as restorative materials do not respond predictably to whitening agents, potentially creating shade mismatches. Understanding the dynamics of staining allows for more informed clinical decisions and improved patient outcomes. Ongoing research continues to explore advanced materials with enhanced stain resistance and surface durability, aiming to reduce the frequency of aesthetic failures and extend restoration longevity in pigment-rich oral environments.
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