V. Read and translate the text, entitle it. Say if the following statements are true or false, correct the false statements to make them true.

Dental inlays and onlays are restorations used to repair teeth with mild to moderate decay or cracked and fractured teeth that aren’t sufficiently damaged to need a crown.

There many benefits to inlays and onlays in comparison to metal fillings:

• Inlays and onlays are durable — they’re made from tough, hard-wearing materials which last up to 30 years.

• They help to strengthen teeth by up to 75 percent, unlike traditional metal fillings which can actually reduce the strength of the teeth by up to 50 percent.

• Inlays and onlays prolong tooth life and prevent the need for more dental treatment in the future.

Dental inlays and onlays are used when old fillings need to be removed or replaced. A dental inlay is similar to a filling and fits inside the cusp tips (top edges) of the tooth. A dental onlay is more extensive and extends over the cusps of the treated tooth.

It takes two appointments for the inlays and onlays treatment to be completed and to be finally bonded to the damaged area of the tooth. At the first appointment, your dentist begins the procedure by numbing the area to be treated with local anesthetic. Any decay or damage is removed by drilling, which cleans and prepares the tooth for the dental inlay or onlay.

Using a small tray filled with dental putty that fits over the teeth, the dentist takes a mold (impression) of the damaged tooth. This impression is sent off to the dental laboratory, where a dental inlay or onlay is created that will fit your tooth exactly.

Inlays and onlays are usually made from porcelain, which often most closely matches the normal colour of the tooth, but they can also be made from composite resin or gold. While the inlay or onlay is being created at the lab, the dentist creates a temporary restoration (cover or filling) for your tooth to protect it until your next appointment.

At the second appointment, your dentist will remove the temporary restoration and then take time to ensure the inlay or onlay fits correctly.

1. Dental inlays and onlays are direct restorations.

2. Dentists may choose inlays and onlays if the teeth that are not sufficiently damaged to need a crown.

3. Inlays and onlays last longer.

4. Inlays and onlays are less durable metal fillings.

5. Dental inlays and onlays are often replaced with old fillings.

6. It takes more than one appointment to complete treatment with the inlays and onlays.

7. It’s necessary to make a mold of the damaged tooth before making inlays and onlays.

8. Porcelain doesn’t closely match the normal colour of the tooth.

9. At the second appointment dentist fits inlay or onlay correctly.

IV. Grammar Exercises

Conditional sentence	Form	Example
Type II It is possible but very unlikely, that the condition will be fulfilled.	if + Simple Past/ Conditional I (= would + Infinitive)	If I were you, I would not agree for sealant. If I had some free time, I would consult my orthodontist.