Increased costs? Annoyed patients? When it comes to Invisalign® there is no tolerance for an inaccurate PVS impressions. When impressions are off, aligners don’t fit and impressions need to be retaken. There are no shortcuts.
If accurate PVS impressions are what you want and need, using illustrative videos, Dr. Rebecca Poling can teach anyone how to take them. Here are her criteria:
Impression is fully seated around the arch
Impression captures the detail of ALL teeth and 2 mm beyond the gingival margin
Gingival margins are crisp and clear, with no air bubbles
Dental midline is at center of the impression
Impression is centered on the arch, not shifted to one side
1/8” (3mm) thickness of wash extends over the entire impression
Includes 1/8” (3mm) extension into all vestibular, palatal, and lingual areas
Less than 1 sq mm of tray shows through
Captures mesial ½ of terminal molar if it is NOT going to be moved, full molar if moving (orthodontically)
No distortion, tray separation, material separation, drag areas, wrinkles, double imprints, or other defects
Objectives
After completing this course the participant should be able to:
List the criteria for acceptable maxillary and mandibular PVS impressions
Identify the materials needed for producing PVS impressions
Describe each step in producing acceptable PVS impressions and a PVS bite registration
Recognize and distinguish acceptable PVS impressions from unacceptable impressions
Identify every defect of an unacceptable PVS impression and describe what steps should have been performed differently to correct the defect in the impression
Presenter(s)
Disclosure
It is the policy of the UT Health San Antonio Office of Continuing Dental Education to ensure balance, independence, objectivity and scientific rigor in all of its sponsored educational activities. All participating speakers, course directors, and planning committee members are required to disclose to the program audience any financial relationships related to the subject matter of this program. Relationships of spouse/partner with proprietary entities producing health care goods or services should be disclosed if they are of a nature that may influence the objectivity of the individual in a position to control the content of the CDE activity. Disclosure information is reviewed in advance in order to manage and resolve any possible conflicts of interest. Specific disclosure information for each speaker, course director, and planning committee member will be shared with the audience prior to the speaker’s presentation.
Continuing Dental Education Staff members have nothing to disclose.