Composite vs. Amalgam Fillings: Which Is Better for You in Launceston?

Dental fillings are used to restore teeth affected by decay, preventing further damage and maintaining oral health. Two of the most common materials for fillings are composite resin and amalgam. 

Each option has advantages and limitations, so it is important to understand their differences before choosing the best one for your needs.

What Are Composite Fillings?

Composite fillings are made of a tooth-coloured resin that blends with the natural tooth structure. This type of filling is preferred for its aesthetic appeal and ability to bond directly to the tooth.

Benefits of Composite Fillings

• Natural Appearance: The resin material matches the colour of the surrounding teeth, making it ideal for visible areas.
• Bonding Strength: Composite fillings bond directly to the tooth, reducing the risk of fractures.
• Versatile Use: They can be used for small to medium cavities and repairs on front or back teeth.
• Less Drilling Required: More of the natural tooth structure is preserved compared to amalgam fillings.
• No Mercury Content: Composite fillings do not contain mercury, addressing concerns some patients may have about amalgam fillings.
• Lower Risk of Temperature Sensitivity: Composite material does not expand and contract as much as amalgam, reducing the chance of cracks or discomfort from temperature changes.

Limitations of Composite Fillings

• Durability Concerns: They may not be as strong as amalgam fillings, especially in areas subjected to heavy chewing.
• More Time-Consuming: The placement process takes longer because the material is applied in layers and cured with a special light.
• Higher Risk of Wear: Over time, composite fillings may wear down faster than amalgam fillings, particularly in molars.
• May Stain Over Time: Composite fillings can become discoloured due to exposure to coffee, tea, or tobacco.

What Are Amalgam Fillings?

Amalgam fillings, made from a blend of metals, including silver, mercury, tin, and copper, have been used for over a century. They are known for their strength and durability.

Benefits of Amalgam Fillings

• Long-Lasting: Amalgam fillings can withstand high chewing forces, making them a durable option for molars.
• Resistant to Wear: They hold up well against grinding and biting pressure over time.
• Cost-Effective: These fillings are a widely used and reliable option for many dental patients.
• Less Sensitivity to Moisture: Amalgam is more tolerant of moisture during placement, making it easier to apply in some cases.
• Well-Suited for Large Cavities: Due to their strength, amalgam fillings are ideal for cavities in back teeth where heavy chewing occurs.
• Lower Risk of Secondary Decay: Amalgam fillings tend to be more resistant to microleakage than some composite materials, reducing the likelihood of recurrent decay.

Limitations of Amalgam Fillings

• Aesthetic Concerns: The silver-coloured material is noticeable, making it less desirable for front teeth.
• Potential Tooth Discolouration: Over time, teeth with amalgam fillings may develop a darker hue.
• More Tooth Removal Required: The process often involves removing more healthy tooth structure to secure the filling properly.
• Thermal Expansion: Amalgam expands and contracts with temperature changes, which may increase the risk of fractures in some cases.
• Potential Allergies: Some individuals may have sensitivities or allergies to the metals used in amalgam fillings.

Comparing Composite and Amalgam Fillings

Which Filling Is Right for You?

Choosing between composite and amalgam fillings depends on factors such as the location of the cavity, aesthetic preferences, and durability needs. At Launceston Dentistry, we help patients in Launceston, TAS, make informed decisions based on their specific dental concerns.

Composite fillings are ideal for those who prioritise aesthetics, require fillings in visible areas, or prefer a minimally invasive treatment.

Amalgam fillings are suitable for patients needing strong, long-lasting restorations in molars where chewing pressure is highest.

How to Maintain Your Dental Fillings

Regardless of the type of dental filling you choose, proper oral hygiene is essential for their longevity. Follow these steps to keep your fillings and natural teeth in good condition:

• Brush Twice Daily: Use fluoride toothpaste and a soft-bristled toothbrush.
• Floss Daily: Remove plaque and food particles between teeth and around fillings.
• Avoid Hard Foods: Chewing ice, hard lollies, or other tough substances can damage fillings.
• Limit Staining Foods and Drinks: Tea, coffee, and red wine can stain composite fillings.
• Visit Your Dentist Regularly: Routine check-ups allow for early detection of wear or potential issues with fillings.
• Consider a Mouthguard if You Grind Your Teeth: Grinding can wear down both composite and amalgam fillings.

How Launceston Dentistry Can Help

At Launceston Dentistry, we assess each patient’s needs to determine the best treatment approach. Whether you require a new filling or a replacement, our team ensures you receive high-quality care tailored to your dental health.

If you are unsure which filling type is best for you, book an appointment with Launceston Dentistry. Our experienced dental team in Launceston, TAS, will guide you through the process and provide the most suitable solution for your oral health needs.

Daniel Tan

Dr Daniel Tan is a highly experienced and compassionate dentist in Launceston, dedicated to providing exceptional dental care for patients of all ages. With a focus on personalised treatment plans and modern techniques, Dr Tan ensures every patient achieves optimal oral health and a confident smile. Visit him for professional, patient-focused care.