Lost Filling

• Clinical Definition: A lost filling refers to the dislodgement of dental restorative material from its original placement allowing exposure to either dentin or the underlying pulp.

• Indications for Urgent Care: Sharp pain upon contact, sharp exposed tooth edges causing injury to the tongue while eating/chewing food, or increased sensitivity due to temperature differences.

• Recovery Options: Temporary provisional sealants, direct composite bonding, indirect ceramic inlay restorations, and full-coverage crowns.

• Sharp, brief pains upon contact with hot tea, very hot food items or cold drinks (thermal sensitivity).

• A deep, irregularly shaped pit in the surface of the teeth that can be felt by the tongue or fingers (tactile roughness).

• Sharp stabbing pain or dull ache upon biting down on regional foods such as hard seed from jackfruit, etc., when they are chewed (masticatory discomfort).

• Dark hole, metallic gray crater, chalky white exposed dentin within the molar groove (visual changes).

• Continued Throbbing Pain: Indicates either pulpitis or an irreversible inflammation of the nerve.

• Soft Tissue Swelling: Boil(s), facial asymmetry, tender submandibular lymph nodes indicate a local abscess.

• Systemic Indicators: Fever, malaise, or difficulty swallowing accompany the toothache (systemic indicators).

• Structural Loss: Cracks extend below the gumline which threatens the root of the tooth.

• Adhesive Fatigue: The degradation of the adhesive resin as it is subjected to cyclic mastication and degrades due to enzyme activity over years.

• Secondary Caries: Repeated bacterial decay which has undermined the margin underneath an existing restorative material.

• Acute Mechanical Trauma: A sudden force from biting into an unexpected hard object such as a piece of unhusked spice or stone-ground rice.

• Diet: Frequent intake of "sticky" sweet foods (such as unrefined jaggery candies) or acid-based drinks (such as lemonade). This can cause weakened margins.

• Bruxism Patterns: Stressful lifestyle that causes teeth grinding while sleeping.

• Aging Restorations: Fillings made of either amalgam or composite materials that have exceeded their usual functional lifespan of 7 to 10 years.

• Poor Interdental Hygiene: Failure to regularly clean between teeth with floss, creating conditions for plaque to accumulate at the margin of restorations.

• Illumination & Vision: Use a clean spoon handle in front of a brightly lit mirror and gently pull the cheek back.

• Light Touch Exploring: Carefully sweep a cotton swab across the tooth, but do not apply enough force to insert it too far down into the cavity using metal.

• Closing Bite: Close your jaws together softly to see if the opposing cusp falls into the depressed area.

• Removing Debris: Swish your mouth around with warm saline solution to loosen debris stuck in the tooth areas, while avoiding excessive pressure.

• Visual Inspection: Inspect the edges of restorations by using a dental explorer to find micro-cracks and/or missing pieces.

• X-ray Radiography: Take intraoral periapical X-rays to determine how near you are to the nerve in the root canal as well as look for additional cavities that may have developed under existing restorations.

• Nerve Response Test: Perform thermal or electrical tests on the nerves in your roots to make sure they remain alive and react normally.

• High-Magnification Loupes: Examine marginal fit/union and possible gaps in restorations at higher magnifications

• Grade 1 (Superficially Mild): A very small amount of lost filling material with the least possible amount of dentin exposed and no sensitivity to temperature changes from hot or cold.

• Grade 2 (Dentin Exposure): A noticeable deepness in a defect with moderate sensitivity to cold liquids and sweet foods.

• Grade 3 (Severe/Pulp Exposure): Large structural failure that may result in spontaneous pain and/or requires immediate treatment.

• Provisional Sealant Treatment: Temporary zinc-oxide eugenol sealants applied for immediate relief prior to completing the treatment.

• Composites Direct Fill: Tooth-colored nano-hybrid resin composite fill layers are cured using a blue light curing unit for small to medium size fillings.

• Porcelain Indirect Inlay: Ceramic inlays are milled in a dental laboratory and then cemented/bonded into a larger posterior filling area.

• Crowns Full Coverage Crown: When more than one-half of the tooth structure is missing, crowns are used as a protective cap over the tooth.

• Temporary Provisional Fillings: Can range from Rs. 300 – 800, as an initial stabilizing measure until further care is arranged.

• Direct Composite Restorative Treatments: Cost varies by surface area and by level of dental clinic, with prices ranging from Rs. 1,200 – Rs. 3,500.

• Laboratory-Fabricated Advanced Ceramic Inlays/Crowns: Range from Rs. 8,000 – Rs. 25,000.

• General Practitioner: For routine placements of composites, small restorations, or initial emergency evaluations.

• Root Canal Specialist Endodontist: If the original filling was lost exposing the pulp, endodontic treatment will be required to treat the tooth.

• Prosthodontist: To consult regarding complex full-mouth rehabilitation, large amounts of crown work, or precision ceramic inlay placement

• Urgent (Same Day) Treatment: Recommended when experiencing sharp pain, severe bleeding, or jagged edges that have lacerated your tongue.

• Scheduled (Within 24 Hours) Treatment: Satisfactory when suffering from mild discomfort as long as you continue with a soft food diet and adhere to good oral hygiene practices.

1. Can I purchase a temporary dental cement at my local pharmacy? 

Yes, you can temporarily fill in the area of tooth decay using an OTC (over-the-counter) temporary filling material. However, this will be used as a short-term stopgap measure.

2. If I leave the tooth untreated, will the tooth decay further? 

Without a doubt. The open dentin tubules provide rapid access to the internal pulp chamber for oral pathogens; therefore, decay is accelerated.

3. Is it safe to eat on the same side as the tooth which has been damaged? 

No, eating on the same side as the compromised tooth places your risk for acute cusp fracture or extreme pain due to pressure being placed on the exposed dentin.

• Dentin Hypersensitivity: The fluid movement inside open dentin tubules creates a burning sensation due to heat.

• Reversible Pulpitis: An inflammatory response of the neural tissue that responds to temperature changes.

• Severe Acute Apical Abscess: A severe bacterial infection that has spread from the pulp into the bone.

• Root Canal Therapy: Removing the contaminated pulp (nerve) from the infected tooth through cleaning and sealing the root canal(s).

• Fluoride Varnish Applications: Professional application for preventing acid decay by remineralizing the weakened, sensitive enamel around the area where the filling was lost.

• Occlusal Splint Therapy: Night guards (custom-made splints) to prevent patients grinding on their restorations.

A variety of diets create different demands for maintaining the structural integrity of dental restorations. Promptly intervening after losing a filling will reduce the need for a root canal and preserve as much of your original tooth structure as possible. All patients who have lost a filling should be instructed to contact a general practitioner or general dentist for treatment evaluation as soon as possible but no longer than 48 hours after the loss of their dental restoration.