Do AMPSAs cause AOBs? – PDP008

The use of anterior mid-point stop appliances (AMPSAs) in Dentistry is surrounded with controversies and misconceptions, so I am joined by Dr Barry Glassman in this episode to answer this much debated question.

Attending Dr Glassman’s lecture last year was eye opening and career-transforming for me. It changed the way I thought about Occlusion!

In this Episode with Dr Barry Glassman we discuss:

  • To what extent are occlusions designed for Function?
  • How much does Occlusion matter?
  • Why canine guidance?
  • Do Anterior midpoint stop appliances cause posterior teeth to over-erupt?
  • When to avoid using AMPSAs?
  • What mechanism is behind patients developing AOB after splint therapy?
This is an example of a lower NTI or SCI (Sleep Clench Inhibitor). This falls in to the category of an anterior mid-point stop appliance (AMPSA)

TLDL (Too Long Didn’t Listen): Jump to 22 mins and 30 seconds if you want the main question answered.

Protrusive Dental Pearl: The BRB technique for incisor Class IV build ups to create an ‘instant wax-up’ within the putty. You can read more about this technique at Style Italiano.

Do not miss out on the next Dentinal Tubules Congress in October!

Dr Glassman will be lecturing again in the UK on ‘Myth-busting Occlusion for the General Dentist‘. He will be lecturing in Sheffield and London and this can be booked on the S4S website.

If you use the discount code BG-PODCAST, this will give 30% off (RRP £179.99).


Barry Glassman, DMD, maintained a private practice in Allentown, PA, which was limited to chronic pain management, head and facial pain, temporomandibular joint dysfunction and dental sleep medicine.   He is a Diplomate of the Board of the American Academy of Craniofacial Pain, a Fellow of the International College of Craniomandibular Orthopedics and a Diplomate of the American Academy of Pain Management.  He is a member of the American Academy of Orofacial Pain and the American Headache Society.  He is on staff at the Lehigh Valley Hospital where he serves as a resident instructor of Craniomandibular Dysfunctions and Sleep Disorders.  He is a Diplomate of the Board of the Academy of Dental Sleep Medicine.  He has published articles that have appeared in both peer and non-peer reviewed journals in the fields of dental sleep medicine and orofacial pain.