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Elevated dental care for whole body wellness

Onlays · Restorative Dentistry in Edmonton, Alberta

Dental Onlays Restore Damaged Teeth and Help Protect Tooth Cusps.

Large cavities, fractures or worn fillings may leave a tooth too weak for a standard filling. Dental onlays repair chewing surfaces while keeping healthy tooth structure where possible. At our Terwillegar practice, we examine the tooth, review materials and explain whether an onlay may suit your needs.

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What Are Dental Onlays?

Onlays repair damaged chewing surfaces and weakened cusps without covering the entire tooth like a full crown.

Onlays repair chewing surfaces and cover one or more tooth cusps. Unlike crowns, they cover only damaged areas. Your dentist reviews the remaining structure and bite.

Cusps

Check weak cusps and old fillings to see whether an onlay is needed.

Cover

Fit an onlay over damage to restore tooth shape and chewing function.

Wear

Check onlays for wear at dental visits and maintain daily oral care.

Why Onlays Matter

How Onlays Restore
Weakened Tooth Cusps.

Large cavities, cracked cusps and worn fillings can weaken a tooth. An onlay can restore damaged chewing areas without covering the whole tooth. Your dentist examines the remaining healthy structure and the extent of damage to decide whether an onlay is suitable.

Repair Damaged Surfaces

Onlays repair suitable areas affected by larger cavities, fractures or worn dental restorations.

Protect Weakened Cusps

Covering damaged or weakened cusps may help protect the tooth during normal chewing.

Preserve Tooth Structure

Partial coverage may allow more natural tooth structure to remain than a full crown in suitable cases.

Restore Chewing Function

A properly fitted onlay restores the tooth's chewing surface and supports normal biting function.

Repair Damaged Surfaces

Onlays repair suitable areas affected by larger cavities, fractures or worn dental restorations.

Protect Weakened Cusps

Covering damaged or weakened cusps may help protect the tooth during normal chewing.

Preserve Tooth Structure

Partial coverage may allow more natural tooth structure to remain than a full crown in suitable cases.

Restore Chewing Function

A properly fitted onlay restores the tooth's chewing surface and supports normal biting function.

Onlay Treatments

Materials Used for Onlays

Onlays can be ceramic or composite resin. The choice depends on the tooth’s location, remaining structure and bite.

Ceramic

Ceramic onlays provide tooth-coloured coverage for damaged chewing surfaces and can be made to match surrounding teeth.

  • Learn More Ceramic

Resin Onlays

Composite resin onlays may suit damaged teeth, depending on the remaining tooth structure and treatment needs.

  • Learn More Resin Onlays

Onlay Checks

Existing onlays may need assessment if they become loose, fractured, worn or affected by decay around their edges.

  • Learn More Onlay Check

Your Dental Onlay Process

What Happens During Your Dental Onlay Treatment Appointment.

Your dentist examines the tooth, prepares the damaged area and records its shape. The onlay is made, fitted and checked for your bite. The number of visits depends on how it is created.

How Holistic Smiles Approaches Care

01 Examine the Tooth

Check decay, cracks, old fillings and remaining structure to see if an onlay is suitable.

02Prepare the Tooth

Use local anaesthetic if needed and remove damaged material while preparing the tooth for an onlay.

03Record the Tooth's Shape

Take impressions or digital scans to create the onlay. A temporary restoration may be placed when required.

04Fit the Onlay

Before bonding or cementing the onlay to your prepared tooth, your dentist ensures that it fits well and aligns with your bite.

01 Examine the Tooth

Check decay, cracks, old fillings and remaining structure to see if an onlay is suitable.

02Prepare the Tooth

Use local anaesthetic if needed and remove damaged material while preparing the tooth for an onlay.

03Record the Tooth's Shape

Take impressions or digital scans to create the onlay. A temporary restoration may be placed when required.

04Fit the Onlay

Before bonding or cementing the onlay to your prepared tooth, your dentist ensures that it fits well and aligns with your bite.

Onlay treatment depends on tooth damage and the healthy structure that remains.

When Might You Need a Dental Onlay?

When an Onlay May Help Repair a Weak Tooth.

Not every damaged tooth needs an onlay. Your dentist checks the size and location of damage, existing fillings and how the tooth works when chewing. Some teeth suit fillings, while others need crowns or different care.

Deep Decay

An onlay may help when decay affects much of the chewing surface and a filling cannot support it.

Weak Cusps

A weak or broken tooth cusp may need coverage to restore chewing and reduce further stress.

Worn Large Fillings

Large fillings may need replacement if loose, cracked or decayed.

Tooth Wear

Teeth worn or changed by past treatment may benefit from an onlay if enough structure remains.

Deep Decay

An onlay may help when decay affects much of the chewing surface and a filling cannot support it.

Weak Cusps

A weak or broken tooth cusp may need coverage to restore chewing and reduce further stress.

Worn Large Fillings

Large fillings may need replacement if loose, cracked or decayed.

Tooth Wear

Teeth worn or changed by past treatment may benefit from an onlay if enough structure remains.

Our Approach to Onlays

Restorative Care With Attention to Tooth Preservation

We examine the affected tooth, explain the findings and review restorative options before treatment. Our approach considers healthy structure, onlay material and chewing function.

Identify Damage

Learn whether decay, a crack or an old filling is causing damage to your tooth.

Partial Onlay Coverage

See whether an onlay can repair damage without full crown coverage.

Compare Materials

Learn how suitable onlay materials differ and what care they may require.

Onlay Aftercare

Receive guidance on brushing, cleaning between teeth and recognizing changes that need dental assessment.

Questions People Are Asking

Your Onlay Questions

Questions about onlays and crowns, treatment steps and lifespan are common. These answers offer general guidance, but your dentist must assess the tooth to recommend care.

An onlay repairs part of a tooth’s chewing surface, including cusps. A crown covers more of the visible prepared tooth. An onlay may retain more healthy structure when damage is limited, while a crown may be needed for wider damage. Your dentist examines the tooth before advising.

An onlay may last years, depending on material, tooth, bite and habits. It can chip, loosen or need replacing. Brush twice daily with fluoride toothpaste, clean between teeth, avoid hard objects and attend dental exams to check the onlay.

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