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Spear Digest

Monolithic Zirconia Restorations Can Fracture!

Monolithic Zirconia Restorations Can Fracture!

Even though monolithic zirconia restorations are very hard with a flexural strength ranging from 900 to 1200 mpa, that doesn't mean that...

| 6 years ago
Ceramic Restorations: Predictable Adjusting and Polishing
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Ceramic Restorations: Predictable Adjusting and Polishing

Learn the steps for adjusting and polishing ceramic restorations.

| 6 years ago
Ceramic Restorations: Why Do They Break?
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Ceramic Restorations: Why Do They Break?

All ceramic restorations can break, even IPS e.max lithium disilicate, which has a flexural strength of 400 mPa. The two most common reasons for ceramic...

| 6 years ago
The Infamous Single Central

The Infamous Single Central

Fabricating an indirect restoration for a single maxillary central incisor is the most challenging and frustrating treatment the dental team can provide...

| 6 years ago
Can You Use a Diagnostic Wax-Up When Phasing Treatment?

Can You Use a Diagnostic Wax-Up When Phasing Treatment?

Here are some steps to using a diagnostic wax-up when phasing dental treatment.

| 7 years ago
Occlusal Reduction for Indirect Restorations: Is 1.5 mm Enough?

Occlusal Reduction for Indirect Restorations: Is 1.5 mm Enough?

Are the posterior indirect restorations you receive back from your laboratory, relatively flat compared to your expectations? Is it your laboratory's...

| 7 years ago
Fabricating Surgical Guides for Esthetic Crown-Lengthening Procedures

Fabricating Surgical Guides for Esthetic Crown-Lengthening Procedures

There are two types of surgical guides I recommend for surgical crown-lengthening procedures: an overlay guide or a copyplast stent. An overlay guide...

| 7 years ago
When You Torque the Implant Abutment Screw
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When You Torque the Implant Abutment Screw

Have you ever been concerned that when you torque the implant abutment screw at the time of final abutment placement, the implant itself may rotate and...

| 7 years ago
Antioxidant Regimen for Restorative Dentistry

Antioxidant Regimen for Restorative Dentistry

The previous two articles in this series described the basic science of oxidative stress, antioxidants and their influence on wound healing. This article...

| 7 years ago
When to Use Triple Tray Impressions [Ed.]

When to Use Triple Tray Impressions [Ed.]

After a previous article 'What Your Lab Needs to Know: Simple Posterior Cases', there was a question posed to me about the accuracy of using triple...

| 7 years ago
Antioxidants and Wound Healing
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Antioxidants and Wound Healing

Last week you were introduced to the process of oxidative stress and the how it is a factor in the development of multiple chronic inflammatory diseases....

| 7 years ago