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Why Are Dental Implants So Good?

1. They are made from titanium, which is a bio compatible material and has been used within the human body for many years.

2. Implants will restore the function of the missing tooth/teeth.

3. Osseointegration (the growth of the surrounding bone around the implant) means that implants cannot be removed.

4. Implants can never decay.

5. They will prevent further bone loss in the sites of the missing tooth/teeth and preserve facial structure.

6. Dental implants will prevent movement of the adjacent and opposing teeth in unwanted directions.

7. Aesthetically, they can look just like natural teeth.

8. The implant crown/ bridge/ denture can be made so that it is retrievable. This is vital in terms of maintenance.

9. Dental implants can be cleaned in the same way as natural teeth.

10. They will never need a root canal treatment! 
 

Case Study of a Single Missing Tooth Replaced With A Dental Implant

The process is straight forward in the hands of an experienced and skilled practitioner. 

Missing premolar tooth, very large space present and loss of function

Dental implant placed to restore the tooth and restore function

Birds eye view of the missing tooth

Example of a screw retained dental implant crown

The advantages are that there is no cement used which therefore eliminates any issue of excess cement causing gum problems. The crown can also be removed easily, if necessary, by unscrewing. 

Treatment was completed by Dr Nissit Patel. 

The photographs are the sole property of Dr Patel and any unauthorized reproduction is strictly prohibited. If you have missing teeth and are considering dental implants, please contact us. 

We have over 11 years of experience in placing and restoring implants and your treatment will be in safe hands.

Prior to taking the impression

1. Ensure that the margins are clear and visible. 

2. A dry field is required. 

3. Use retraction cord with a haemostatic agent or a soft tissue diode laser if you have one. This will allow removal of excess tissue, provide haemostasis and most importantly allow the recording of at least 1mm of tooth tissue below the margin line. 

4. Ensure there is adequate occlusal clearance. Most technicians say that the most common error is lack of occlusal space. Use clearance guides if you have them or use parallel sided hand instrument which is pre measured using calipers and slide along the medial and distal aspect of the preparation to verify clearance. 

5. Use loupes to ensure your margins are clear and even. If you have a intra oral camera, take an image from an occlusal view and ensure you have 360 degree visualisation of the preparation. 

6. Block out any undercuts and large inter dental spaces using block out resin. This is a step that is often overlooked but vital to ensure the impression can be removed with ease. Your patient will love you for this!
 

Taking the impression- second mandibular molar sites are ideal for this technique

1. These areas can be very difficult due to the limited access and muscular actions of the tongue.

2. Initially choose your tray carefully and ensure it covers all aspects of the preparation and the entire arch.

3. Take a PVS impression of the entire arch in heavy and light body impression material. My material of choice is Honigum by DMG. This should be accurate as possible.

4. Trim the excess around the borders.

5. Re seat and ensure the impression re locates with ease.

6. Remove and bur away the preparation site using an acrylic bur. Drill a hole into the occlusal aspect of the impression tray of the prepared tooth and a channel buccally from the impression material.

7. Re seat the impression and syringe into the access hole light body material until the excess flows through the pre drilled channel. Allow to set.

8. Remove and you should have recorded an accurate impression of the preparation with NO airflows, NO drags, clear margins and at least 1mm below the impression line. This technique will allow you take impressions in the most difficult access cases- please try it the next time you have a crown or bridge prep. 

If there are any questions on this technique, please do not hesitate to contact me: nissit@progressivedentistry.co.uk
 

The future

The future is digital. Intra oral scanners will become a greater part of dentistry in the next few years which will eliminate the need for conventional dental impressions. This is incredibly exciting and there are huge benefits with this technology. Having tested this in practice, I can say the techniques are incredibly accurate. However, at present the systems are too costly for most dental practices and time consuming. This will change as we have seen with digital radiography. Once it does, we will convert to intra oral scanning for all of our impressions. I will keep you posted.

This article is for dentists, written by Dr Nissit Patel.