Dental Fillings in Rangsit, Pathum Thani

A dental filling is a restoration used to repair a tooth that has been damaged by decay, a small fracture, wear or the loss of an existing filling.

During treatment, the dentist removes damaged or decayed tooth structure, prepares and cleans the area, and places a restorative material to rebuild the tooth’s shape and function.

Dental fillings are commonly used when enough healthy tooth structure remains to support a direct restoration. If the damage is extensive, reaches the dental pulp or significantly weakens the tooth, another treatment such as root canal treatment, a dental crown or tooth extraction may be considered.

The appropriate treatment depends on the depth of decay, size and location of the defect, condition of the remaining tooth, bite forces, oral hygiene and individual treatment goals.

What Is a Dental Filling?

A dental filling replaces a portion of tooth structure that has been lost or removed.

The filling is shaped to restore the tooth’s contour and create a surface that can be used for biting or chewing. For front teeth, the dentist may also select and shape a tooth-coloured material to blend with the surrounding tooth where possible.

A filling may help:

• Restore the shape of a decayed tooth
• Rebuild a small chipped or broken area
• Replace an old or damaged restoration
• Reduce food trapping caused by a cavity
• Restore contact between neighbouring teeth
• Protect exposed internal tooth structure
• Improve the function of a worn or damaged tooth
• Restore selected cosmetic defects when clinically appropriate

A filling does not make a tooth permanently immune to decay or fracture. The restored tooth still requires regular cleaning, dental examinations and monitoring.

When May a Tooth Need a Filling?

A filling may be recommended for several reasons.

Tooth decay

Tooth decay develops when acids produced by plaque bacteria contribute to the loss of minerals from the tooth surface.

In the early stages, a white or weakened enamel area may sometimes be managed without drilling through preventive treatment, fluoride, dietary changes and improved oral hygiene.

Once a cavity has formed and the tooth structure can no longer recover adequately, the damaged area may need to be removed and restored with a filling.

A chipped or slightly broken tooth

A small chip or fracture may sometimes be repaired with a tooth-coloured filling material.

Suitability depends on:

• The size and depth of the fracture
• Whether the crack extends below the gum
• The amount of tooth structure remaining
• Bite forces
• The position of the tooth
• Whether the dental pulp is affected

A deeply fractured tooth may require a crown, root canal treatment or extraction rather than a direct filling.

A worn tooth

Teeth may wear because of:

• Tooth grinding or clenching
• Acid erosion
• Aggressive brushing
• An uneven bite
• Long-term use
• Habits involving hard objects
• Loss of neighbouring teeth

A filling may restore selected worn areas, but the cause of the wear should also be assessed. Simply adding material without addressing ongoing heavy forces or acid exposure may lead to repeated damage.

A leaking or damaged filling

An existing filling may require replacement if it becomes:

• Cracked
• Chipped
• Loose
• Worn
• Discoloured at the margin
• Associated with recurrent decay
• Unable to maintain proper tooth contact
• Uncomfortable during chewing

Not every stained line around a filling confirms decay. The dentist will assess the margin, tooth structure, symptoms and relevant imaging before deciding whether replacement is needed.

A gap that traps food

A damaged tooth or poorly shaped filling may allow food to become trapped between teeth.

The dentist will examine whether the problem comes from:

• Tooth decay
• Loss of contact between teeth
• A fractured filling
• Gum recession
• Tooth movement
• The shape of the restoration

Food trapping may also contribute to gum inflammation and should not be managed only by repeatedly placing more filling material without identifying the cause.

Symptoms That May Suggest Tooth Decay or a Damaged Filling

Possible symptoms include:

• Sensitivity to cold, hot or sweet foods
• Pain when chewing
• Food trapping between teeth
• A rough or sharp tooth surface
• A visible hole or dark area
• A chipped filling
• Dental floss tearing between teeth
• An unpleasant taste from one area
• A filling that feels loose
• Tenderness around a tooth
• A tooth that feels different when biting
• Intermittent toothache

Tooth decay may also develop without noticeable symptoms, particularly during the early stages.

Symptoms alone cannot determine whether a filling is sufficient. Persistent or spontaneous pain may indicate deeper inflammation, a crack, infection or another dental problem.

When Is a Filling Not Enough?

A direct filling may not be the most predictable treatment when:

• A large portion of the tooth is missing
• The remaining tooth walls are thin or fractured
• Decay extends deeply toward the dental pulp
• The tooth has spontaneous or prolonged pain
• A crack extends into the root
• The tooth has undergone root canal treatment and requires greater protection
• The damaged area extends far below the gum
• The bite places excessive force on the restoration
• There is insufficient healthy tooth structure for bonding
• The tooth has severe mobility or bone loss
• The tooth cannot be restored predictably

When root canal treatment may be required

If decay or injury causes significant inflammation or infection inside the tooth, a filling alone cannot treat the affected pulp tissue.

Possible signs that require further assessment include:

• Spontaneous toothache
• Pain that wakes the patient at night
• Prolonged pain after hot or cold
• Swelling
• A dental abscess
• Pain when biting
• Darkening of the tooth
• A deep cavity close to the pulp

The dentist may recommend root canal treatment to preserve a restorable tooth.

When a crown may be required

A dental crown covers more of the tooth than a direct filling.

It may be considered when:

• The cavity is very large
• Several tooth surfaces are missing
• The tooth is heavily cracked or weakened
• A large existing filling has failed
• A root canal-treated tooth requires additional protection
• The remaining tooth cannot support a predictable direct restoration

A crown is not automatically necessary for every large filling. The decision depends on the remaining tooth structure, location and bite forces.

When extraction may be considered

If the tooth cannot be restored or has an unfavourable prognosis, tooth extraction may be discussed.

Extraction is generally not the first option when the tooth can still be preserved predictably.

Types of Dental Filling Materials

No filling material is ideal for every tooth or every patient.

Material selection depends on:

• Tooth location
• Size and depth of the cavity
• Amount of healthy tooth remaining
• Ability to keep the area dry
• Bite forces
• Appearance
• Gum position
• Patient age
• Medical and dental history
• Cost
• Availability of the material
• The dentist’s clinical assessment

Composite Resin Fillings

Composite resin is a tooth-coloured material commonly used for direct restorations.

The dentist places the material in stages, shapes it and hardens it using a curing light.

Composite may be used for:

• Small or moderate cavities
• Front teeth
• Selected back teeth
• Chipped teeth
• Worn edges
• Replacing selected old fillings
• Restoring a tooth-coloured appearance

Potential advantages include:

• Colour can be selected to blend with the tooth
• It bonds to prepared tooth structure
• It can often be completed directly in the mouth
• It can be shaped for front or back teeth
• Repairs may be possible in selected cases

Considerations include:

• The treatment area usually needs good moisture control
• The material may stain or wear over time
• Large restorations may be affected by heavy bite forces
• Margins can develop recurrent decay
• The restoration may chip or fracture
• Colour matching cannot always be exact
• The material does not whiten with tooth-bleaching treatment

The expected lifespan cannot be predicted from the material alone.

Glass Ionomer and Related Materials

Glass ionomer materials may be used in selected situations, including:

• Areas close to the gum line
• Root-surface cavities
• Temporary or transitional restorations
• Selected children’s teeth
• Areas where moisture control is difficult
• Small non-load-bearing restorations

Some glass ionomer materials release fluoride, but this does not eliminate the need for brushing, fluoride toothpaste, dietary control and regular examinations.

These materials may not provide the same wear resistance or appearance as composite in every location.

Amalgam Fillings

Dental amalgam is a metallic filling material historically used for back teeth.

It may provide durability in selected clinical conditions, but it is darker than the natural tooth and does not bond to tooth structure in the same way as adhesive composite restorations.

The availability and use of amalgam vary between clinics, countries and individual patient circumstances.

Before mentioning amalgam as an available treatment option, SWC Dental should confirm whether the clinic currently provides this material.

An existing amalgam filling does not automatically need to be removed merely because it is metallic. Replacement should generally be based on clinical reasons such as decay, fracture, leakage, symptoms or restorative planning.

Ceramic Inlays and Onlays

Ceramic restorations such as inlays and onlays are made outside the mouth or produced using a digital workflow before being bonded to the tooth.

They may be considered when:

• The defect is too large for a predictable direct filling
• More tooth coverage is needed
• Enough healthy tooth remains to avoid a full crown
• Appearance is important
• The tooth can support an adhesive restoration
• Bite forces and available space are suitable

An inlay fits mainly within the tooth, while an onlay may also cover one or more cusps.

Ceramic inlays and onlays should not be grouped automatically with routine direct fillings because they involve a different preparation, production process and fee.

Patients can learn about restorative digital workflows on the Digital Dentistry page.

Gold Restorations

Gold inlays or onlays have historically been used for selected restorations because of their material properties and fit.

However, they require laboratory production, are visibly metallic and may not be routinely available.

SWC Dental should only describe gold restorations as a current option if the clinic can verify that the material and laboratory service are actually offered.

Fixed lifespan claims such as “more than 20 years” should be avoided because restoration survival depends on many clinical and patient-related factors.

Temporary Fillings

A temporary filling may be placed when:

• The dentist needs to monitor the tooth
• Treatment cannot be completed in one visit
• The tooth is awaiting root canal treatment
• A temporary seal is required between appointments
• Symptoms need further evaluation
• A final restoration is being planned
• Emergency treatment has been provided

Temporary material is not intended to function indefinitely.

Patients should return according to the dentist’s instructions. A temporary filling that is lost, fractured or left beyond the intended period may allow leakage, contamination or further tooth damage.

Tooth-Coloured Filling or Ceramic Restoration?

Topic	Direct composite filling	Ceramic inlay or onlay
Production	Placed and shaped directly in the mouth	Designed and produced outside the mouth or with a digital workflow
Visits	Often completed in one visit	May require one or more visits depending on the workflow
Defect size	Commonly used for small to moderate defects	May be considered for larger defects requiring additional coverage
Appearance	Tooth-coloured	Tooth-coloured and laboratory or digitally produced
Tooth preparation	Depends on decay and damage	Designed for the selected indirect restoration
Repair	May sometimes be repaired directly	Repair or replacement depends on the damage
Cost	Depends on size and material	Usually differs because of production and laboratory or digital steps
Suitability	Depends on moisture control and remaining tooth	Depends on remaining tooth, bonding and bite forces

Neither option is automatically better.

The dentist will select a treatment based on the defect, remaining tooth structure, bite and expected function.

Examination Before a Dental Filling

Before treatment, the dentist will ask about symptoms and examine the tooth.

The assessment may include:

• Visual examination
• Checking the tooth surface
• Testing sensitivity
• Checking the bite
• Assessing existing fillings
• Examining the gums
• Dental floss evaluation
• Transillumination where appropriate
• Dental X-rays when clinically indicated

Not every cavity is clearly visible from the outside.

Decay between teeth or underneath an existing restoration may require imaging to assess more accurately. However, X-rays should be selected according to clinical need rather than performed identically for every patient.

Dental Filling Procedure at SWC Dental

1. Examination and diagnosis

The dentist assesses the tooth, symptoms and extent of damage.

The patient will be informed whether the tooth appears suitable for a filling or whether another treatment may be needed.

2. Discussion of treatment options

The dentist explains:

• The location and estimated depth of the defect
• Available restorative materials
• Appearance considerations
• Expected limitations
• Alternative treatments
• Whether local anaesthesia may be needed
• Estimated fee
• Need for follow-up or monitoring

3. Local anaesthesia when needed

Local anaesthesia may be administered to reduce discomfort during treatment.

Not every small filling requires the same anaesthetic approach. The decision depends on cavity depth, location, sensitivity and patient preference.

4. Removal of decay or damaged material

The dentist removes decayed or unsupported tooth structure and, when necessary, removes part or all of a failed restoration.

The aim is to preserve healthy tooth structure while creating a clean and stable area for restoration.

5. Tooth preparation and moisture control

The treatment area is isolated and prepared according to the selected material.

Good moisture control is particularly important for adhesive tooth-coloured restorations.

6. Placement of the filling

The restorative material is placed, adapted and shaped.

Composite resin may be placed in layers and hardened using a curing light.

7. Shaping and polishing

The dentist shapes the filling to restore the tooth’s contour and contact with neighbouring teeth.

The surface is finished and polished where appropriate.

8. Bite check

The patient is asked to bite so the dentist can check whether the filling contacts the opposing teeth correctly.

A filling that feels high may cause discomfort or excessive pressure. Patients should contact the clinic if the bite remains uncomfortable after the anaesthesia has worn off.

Does Getting a Filling Hurt?

A dental filling should not be promoted as completely painless.

Local anaesthesia can reduce discomfort during the procedure, but patients may still notice:

• Pressure
• Vibration
• Water spray
• Sounds from dental instruments
• Temporary jaw fatigue
• Sensitivity after treatment

The experience depends on the cavity depth, tooth condition, treatment location and individual sensitivity.

Contact the clinic if pain is severe, progressively worsening or does not behave as expected after treatment.

Sensitivity After a Filling

Temporary sensitivity may occur after a filling.

The tooth may react to:

• Cold
• Hot foods
• Sweet foods
• Chewing pressure
• Air
• Tooth brushing

Possible reasons include:

• The cavity was deep
• The tooth was irritated by decay
• The restoration is close to the pulp
• The bite needs adjustment
• The bonding procedure temporarily affected the tooth
• The tooth has an undetected crack
• The pulp is becoming more inflamed

Sensitivity should generally be monitored rather than ignored.

Contact the dentist if:

• Pain is severe
• Symptoms worsen
• Pain occurs spontaneously
• Pain wakes you at night
• Heat causes prolonged pain
• The tooth hurts strongly when biting
• Swelling develops
• The filling feels too high
• Symptoms continue longer than expected

A deep cavity can sometimes progress to require root canal treatment even after a technically appropriate filling because the pulp response varies between teeth.

How Long Does a Dental Filling Last?

There is no guaranteed lifespan for a dental filling.

The durability of a restoration depends on:

• Size of the filling
• Tooth location
• Material
• Amount of healthy tooth remaining
• Quality of moisture control
• Bite forces
• Tooth grinding
• Diet
• Oral hygiene
• Frequency of sugar intake
• Gum recession
• Recurrent decay
• Patient age
• Regular dental monitoring
• Accidents or trauma

A small filling in a low-stress area may perform differently from a large restoration replacing several surfaces of a back tooth.

Patients should avoid comparing expected longevity using material names alone.

Can a Filled Tooth Decay Again?

Yes.

New decay may develop:

• At the edge of a filling
• Under a leaking restoration
• On another surface of the same tooth
• On an exposed root surface
• Between teeth

Factors that may increase risk include:

• Plaque accumulation
• Frequent sugary food or drinks
• Dry mouth
• Poor cleaning between teeth
• Gum recession
• Irregular dental check-ups
• A damaged or poorly fitting restoration

A filling repairs existing damage but does not remove the underlying risk of future tooth decay.

How to Care for a Dental Filling

Patients should:

• Brush at least twice daily with fluoride toothpaste
• Clean between the teeth
• Reduce frequent sugary snacks and drinks
• Avoid biting very hard objects
• Attend dental examinations
• Have professional teeth cleaning when recommended
• Report new sensitivity or pain
• Wear a protective appliance if prescribed for tooth grinding
• Avoid using teeth to open packages
• Monitor floss that repeatedly catches or tears
• Seek advice if the filling feels loose or rough

The restored tooth should be examined along with the rest of the mouth during routine dental visits.

Eating After a Filling

Eating instructions depend on the material, anaesthesia and size of the restoration.

Patients should avoid chewing while the lips, cheek or tongue remain significantly numb because they may bite themselves accidentally.

After a tooth-coloured filling, the material is hardened during treatment, but the tooth and surrounding tissues may still feel sensitive.

Follow any specific instructions given by the dentist regarding:

• When to eat
• Which side to chew on
• Hard or sticky foods
• Temperature sensitivity
• Temporary restorations

A temporary filling may require additional food restrictions.

Replacing an Old Filling

An old filling does not automatically need replacement because of its age or appearance.

The dentist may recommend replacement when there is:

• Recurrent decay
• A fractured restoration
• A loose filling
• A significant open margin
• Pain or sensitivity linked to the restoration
• Loss of proper tooth contact
• A crack in the surrounding tooth
• A restorative plan requiring a different material
• Inability to clean the area effectively

Replacing a filling requires removing restorative material and sometimes additional tooth structure.

For this reason, replacement should have a clear clinical or treatment-planning reason rather than being performed routinely without assessment.

Front-Tooth Fillings

Tooth-coloured composite may be used for selected front-tooth concerns, including:

• Small cavities
• Minor chips
• Worn edges
• Small gaps
• Localised shape correction
• Replacement of an old tooth-coloured filling

The dentist considers:

• Colour
• Transparency
• Tooth texture
• Size of the defect
• Bite contact
• Available enamel
• Gum position
• The patient’s expectations

A direct filling may be appropriate for a small defect.

When several teeth require major changes to colour, shape or proportion, the dentist may discuss other treatments such as dental veneers or crowns.

Cosmetic restoration should not remove healthy tooth structure unnecessarily simply to create a uniform appearance.

Dental Fillings for Children

Children may require fillings for cavities in baby teeth or permanent teeth.

Baby teeth play roles in:

• Chewing
• Speech
• Maintaining space
• Guiding permanent teeth
• Supporting normal daily function

A decayed baby tooth should not automatically be ignored because it will eventually fall out.

Treatment depends on:

• The child’s age
• Tooth involved
• Depth of decay
• Symptoms
• Expected time before natural tooth loss
• Ability to cooperate
• Risk of further decay
• Overall oral health

Parents can learn more about children’s dental care on the Pediatric Dentistry page.

Preventing Future Cavities

Dental treatment should address both the cavity and the factors that contributed to it.

Preventive care may include:

• Brushing with fluoride toothpaste
• Cleaning between teeth
• Reducing how frequently sugary foods and drinks are consumed
• Drinking water regularly
• Managing dry mouth
• Fluoride treatment when appropriate
• Fissure sealants for selected teeth
• Regular dental examinations
• Professional cleaning
• Individual dietary advice

A filling treats an existing defect but does not replace ongoing prevention.

Dental Filling in Rangsit at SWC Dental

SWC Dental provides dental filling assessment and restorative treatment for patients in Rangsit, Pathum Thani and nearby areas, including Thanyaburi, Khlong Luang, Lam Luk Ka and Don Mueang.

The process begins with an examination to determine:

• Whether tooth decay is present
• The depth and size of the defect
• Whether the dental pulp may be affected
• Whether the tooth can support a direct filling
• Whether an old filling needs repair or replacement
• Which material may be appropriate
• Whether a crown, root canal or another treatment should be considered

Before treatment, the dentist will explain the findings, available options, limitations and estimated fee.

The number of visits, material and treatment cost depend on the size, location and condition of the tooth.

Patients can meet the SWC Dental team, view the dental treatment prices or contact SWC Dental to arrange an examination.

Frequently Asked Questions About Dental Fillings

Does every cavity need a filling?

Not every early enamel lesion requires drilling. Some early areas may be managed with preventive treatment and monitoring. Once a physical cavity has formed, a restoration is more likely to be required.

Can a cavity heal by itself?

Early mineral loss may sometimes be arrested or partially remineralised. A hole or structurally damaged area generally cannot rebuild its original shape by itself and may need restoration.

Are tooth-coloured fillings suitable for back teeth?

Composite fillings can be used in many back teeth. Suitability depends on cavity size, moisture control, remaining tooth structure and bite forces.

Is a filling better than a crown?

Neither is universally better. A filling preserves more tooth structure when the defect is suitable for direct restoration. A crown may provide more coverage when the tooth is significantly weakened.

How do I know whether I need a filling or root canal?

The dentist evaluates symptoms, cavity depth, pulp response, tooth structure and imaging. Spontaneous or prolonged pain may suggest that a filling alone is not sufficient.

Can I replace a silver filling with a white filling?

It may be possible, but the dentist should first assess the existing filling, remaining tooth and reason for replacement. Removal is not automatically recommended when the restoration remains clinically acceptable.

Will a front-tooth filling match perfectly?

The dentist will select and shape a tooth-coloured material to blend with the tooth where possible. Exact colour and transparency matching may be difficult, particularly with large defects or heavily discoloured teeth.

Can a filling fall out?

A filling can loosen or fracture because of recurrent decay, heavy biting forces, insufficient supporting tooth structure, trauma or material wear. Contact the clinic rather than leaving the cavity open.

Why does my filling hurt when I bite?

The filling may be high, the tooth may remain irritated, or there may be a crack or deeper pulp problem. A bite adjustment or further assessment may be required.

Is sensitivity after a filling normal?

Temporary sensitivity can occur, especially after a deep filling. Severe, worsening, spontaneous or prolonged pain should be assessed.

Do fillings need to be replaced regularly?

No fixed replacement schedule applies to every filling. Restorations should be monitored and replaced or repaired when there is a clinical reason.

Can I whiten a composite filling?

Tooth-whitening products act mainly on natural tooth structure and do not change composite in the same way. Existing front-tooth fillings may no longer match after whitening.

How long does a filling appointment take?

Appointment length depends on the number of teeth, cavity size, location, material, anaesthesia and treatment complexity. The clinic can provide a more individual estimate after examination.

How much does a dental filling cost?

The fee depends on the tooth, number of surfaces, material and complexity. An examination is required for an individual quotation.

Book a Dental Filling Assessment

If you have tooth sensitivity, a visible cavity, a chipped tooth or an old filling that feels loose or uncomfortable, arrange an examination at SWC Dental in Rangsit.

The dentist will assess whether the tooth can be restored with a filling or whether another treatment would provide a more appropriate outcome.

View our dental treatment prices or contact SWC Dental to make an appointment through LINE Official @swcdental, call 02-531-3231 or 064-465-0565.

What is a Filling?

A filling is a way to restore a tooth damaged by decay back to its normal function and shape.

When a dentist gives you a filling, he or she first removes the decayed tooth material, cleans the affected area, and then fills the cleaned out cavity with a filling material.

By closing off spaces where bacteria can enter, a filling also helps prevent further decay. Materials used for fillings include gold, porcelain, a composite resin (tooth-colored fillings), and an amalgam (an alloy of mercury, silver, copper, tin and sometimes zinc).

Type of Filling

No one type of filling is best for everyone. What’s right for you will be determined by the extent of the repair, whether you have allergies to certain materials, where in your mouth the filling is needed, and the cost. Considerations for different materials include:

	Amalgam (silver) fillings are resistant to wear and relatively inexpensive. However, due to their dark color, they are more noticeable than porcelain or composite restorations and are not usually used in very visible areas, such as front teeth.
	Composite (plastic) resins are matched to be the same color as your teeth and therefore used where a natural appearance is desired. The ingredients are mixed and placed directly into the cavity, where they harden. Composites may not be the ideal material for large fillings as they may chip or wear over time. They can also become stained from coffee, tea or tobacco, and do not last as long as other types of fillings generally from three to 10 years.
	Gold fillings are made to order in a laboratory and then cemented into place. Gold inlays are well tolerated by gum tissues, and may last more than 20 years. However, it is often the most expensive choice and requires multiple visits.
	Porcelain fillings are called inlays or onlays and are produced to order in a lab and then bonded to the tooth. They can be matched to the color of the tooth and resist staining. A porcelain restoration generally covers most of the tooth. Their cost is similar to gold.

If decay or a fracture has damaged a large portion of the tooth, a crown, or cap, may be recommended. Decay that has reached the nerve may be treated in two ways: through root canal therapy (in which nerve damaged nerve is removed) or through a procedure called pulp capping (which attempts to keep the nerve alive).