Replacing Silver Amalgam Fillings
Replacing silver amalgam fillings is necessary when older metal restorations expand and contract, which can lead to hidden fractures in the tooth. Family Dentistry of Braintree uses composite restorations that bond directly to enamel, sealing out decay and strengthening the tooth.
The Biological Reality of Older Metallic Fillings
Maintaining a healthy smile requires careful attention to dental concerns. Many older restorations are reaching the end of their lifespan. Patients often have silver fillings, or dental amalgam, which were once the standard for cavity repair. While effective for many years, these fillings have physical limitations that can eventually compromise healthy tooth structure.
Our clinical team conducts thorough restorative evaluations using comprehensive imaging. We take time to review your options carefully. During your visit, we use high-definition digital sensors to examine your existing fillings, enabling us to detect structural issues early before significant damage occurs.
Patients often feel more secure after replacing a leaking silver filling with a seamless, tooth-colored composite resin.
The Physics of Thermal Expansion and Structural Stress
Metal dental restorations have a key flaw: they respond to temperature changes by expanding and contracting. Because metal expands more than natural tooth structure, it exerts pressure on the surrounding dentin. Over time, this repeated movement creates stress lines called micro-fractures.
These small cracks widen over time due to daily chewing. Eventually, the weakened enamel can fracture, often requiring crowns or root canals. Older silver fillings do not bond to the tooth but rely on undercuts to stay in place. This lack of seal allows bacteria to enter, leading to hidden decay beneath the filling.
Switching to composite restorations addresses these issues. Modern tooth-colored resins are made from fine glass and plastic particles that expand at a rate similar to natural enamel. Our doctors remove the old metal, apply a priming agent, and bond the composite directly to the tooth. This approach preserves healthy tissue and supports long-term oral health.
Common Questions About Replacing Silver Amalgam Fillings
Is it necessary to remove all of my old silver fillings, even if they do not hurt? We do not recommend replacing older fillings unless a clear diagnostic need is found during your exam. If digital scans show a filling is leaking, fractured, or hiding decay, replacement is necessary to protect the tooth. Dr. Struzziero will provide a thorough evaluation during your checkup to keep your smile healthy.
Will replacing an old metal filling cause tooth sensitivity? Some minor, temporary sensitivity is normal for a few days after a restorative procedure. Our team uses precise techniques and protective bases to minimize discomfort, ensuring you remain comfortable during your visit.
Schedule Your Composite Filled Restorations Consultation in Braintree
Protecting your smile from structural damage requires proactive care. If you are concerned about your metal restorations, our team near Five Corners is here to help. Benefit from our sixty years of experience and modern clinical precision. Contact our practice on Washington Street to schedule your digital evaluation.



