Re: Steep cusps,canine or group function

[Guest guest]

Thank you for this Lyudmyla,Do you know anything abt transfer copying technique??and maybe you read about facebow?Do we have to do it always when doing crowns? Best regardsAlenaOzievaFrom: Lyudmyla Huhley <huhley2006@...>" " < >Sent: Monday, September 5, 2011 4:38 PMSubject:

Steep cusps,canine or group function

Hi guysDecided to have a look at canine guidance and occlusial interferences today because I ve never been very good at it...Just wanted to share it with you.Do you remember just recently we were discussing the canine crown come off...and I thought that it could be similar case in the exam but with teeth at the back A patient has worn their teeth quite flat. They have good group function. You provide crowns for the upper and lower right 1st molar. They are fine in static occlusion (not “highâ€). However, the crowns have

been made with steep cusps. When the patient slides laterally, the cusps hit and guide the mandible, and all the other teeth come apart. The crowns have created a posterior interference because they were poorly shaped, even though they were not “high on the bite†in intercuspal position.Findings-RxWhen providing a restoration, always first check if the tooth provides anterior guidance (canine or group function), using occlusal indicator paper in the mouth.

- If it does, and your restoration will be strong enough, ensure it still does after you have restored it.

- If it doesn’t, don’t accidentally introduce an interference (by for example creating steep cusps).

If you see an interference and you are worried about it, use study casts

mounted on an adjustable articulator to see what would happen if you ground it away. If you are not confident about doing this, consider specialist referral.

If you feel too inexperienced to adjust the occlusion and don’t have access to a specialist, you can protect the interfering teeth (and joint) by providing an occlusal split such as a Stabilisation Appliance.

This might be worn all the time for maximum protection, or just at night when the risk of damage is worst. An example of a stabilisation appliance is the Michigan Splint.

SincerelyLyudmyla

[Guest guest]

Heyhttp://www.youtube.com/watch?v=mzG0NrpD694 & feature=colikeFacebow transfer ,i guess we have to do if it is extensive bridge/crown work not for one crownSincerelyLyudmylaFrom: Alena Ozieva <alenaozieva@...>" " < >Sent: Monday, 5 September 2011, 21:41Subject: Re: Steep cusps,canine or group function

Thank you for this Lyudmyla,Do you know anything abt transfer copying technique??and maybe you read about facebow?Do we have to do it always when doing crowns? Best regardsAlenaOzievaFrom: Lyudmyla Huhley <huhley2006@...>" " < >Sent: Monday, September 5, 2011 4:38 PMSubject:

Steep cusps,canine or group function

Hi guysDecided to have a look at canine guidance and occlusial interferences today because I ve never been very good at it...Just wanted to share it with you.Do you remember just recently we were discussing the canine crown come off...and I thought that it could be similar case in the exam but with teeth at the back A patient has worn their teeth quite flat. They have good group function. You provide crowns for the upper and lower right 1st molar. They are fine in static occlusion (not “highâ€). However, the crowns have

been made with steep cusps. When the patient slides laterally, the cusps hit and guide the mandible, and all the other teeth come apart. The crowns have created a posterior interference because they were poorly shaped, even though they were not “high on the bite†in intercuspal position.Findings-RxWhen providing a restoration, always first check if the tooth provides anterior guidance (canine or group function), using occlusal indicator paper in the mouth.

- If it does, and your restoration will be strong enough, ensure it still does after you have restored it.

- If it doesn’t, don’t accidentally introduce an interference (by for example creating steep cusps).

If you see an interference and you are worried about it, use study casts

mounted on an adjustable articulator to see what would happen if you ground it away. If you are not confident about doing this, consider specialist referral.

If you feel too inexperienced to adjust the occlusion and don’t have access to a specialist, you can protect the interfering teeth (and joint) by providing an occlusal split such as a Stabilisation Appliance.

This might be worn all the time for maximum protection, or just at night when the risk of damage is worst. An example of a stabilisation appliance is the Michigan Splint.

SincerelyLyudmyla