Border Molding and Final Impressions Flashcards
A _____ is a negative registration of the entire denture bearing, stabilizing and border seal areas present in the edentulous mouth
Complete denture impression
A ______ is an impression made for the purpose of diagnosis or for the construction of a tray
Preliminary impression
____ tray have various sizes and materials
Stock trays
_____ trays are fabricated on patient’s cast
Custom
If vestibules are smooth, the borders should be ______
smooth
If vestibules are uniform, the borders should be ______
uniform
In a ______ impression, an attempt is made to exert as little pressure as possible during impression procedures; the objective is to capture tissues in their most undisturbed and undisplaced form
Minimal pressure impression
The rationale behind a ____ impression is if tissues are recorded in an undisturbed state using an accurate, free-flowing impression material, retention and stability of the dentures would be increased
Minimal pressure impression
What type of impression material should be used for a minimal pressure impression?
Low viscosity, high flow
In a _____ impression, the impression is made with the soft tissue under a significant load; the impression material is a more viscous material
Functional pressure impression
In a ____ impression, the tray is seated and the patient closes mouth with force while the material sets
Functional pressure impression
Rationale for a _____ impression is that the denture-base tissue contact during function would be more intimate if tissue is recorded under compression
Functional pressure impression
In a ____ impression, more pressure is placed on certain areas and less placed on other areas based upon the dentist’s decision using the knowledge of anatomy and physiology
Selective pressure impression
Wax spacer relief, drilling vent holes in tray, and grinding the tray for relief space are ways we ______ areas of pressure and non-pressure in the impression
select
We use a ____ because borders can be modified to control the movable soft tissues around and avoid distortion; space can be provided inside the tray so that shape of the tissues supporting the denture may be recorded with minimal or selective displacement in the primary support area
Custom tray
For the ____ impressions, Mucosa should be healthy, impression material should be of low viscosity, use minimum pressure to seat tray, and seat and hold impression to set
Secondary impression
_____ is used to define denture border in length, width, shape, and contour; when complete should resemble anticipated denture border
Border molding
In order to capture _______ on border molding, patient moves jaw side to side
Max posterior
In order to capture _______ on border molding, elevate cheek, lightly massage outward, down, and posteriorly
Buccal frenum
In order to capture _______ on border molding, elevate lip outward, massage down
Labial vestibule
In order to capture _______ on border molding, elevate lip, seat tray, lightly massage lip straight down- not side to side
Labial frenum
In order to capture _______ on border molding, have patient pinch nostrils, blow slightly through the nose then swallow
Posterior palatal border
How much space should there be in between the custom tray and the depth of the vestibule?
2mm
In order to capture _______ on border molding, gently wet upper lip with tip of tongue to get length and place tip of tongue under lip side to side to get width
Lingual frenum
In order to capture _______ on border molding, patient swallows or protrudes tongue but not past lips
Alveololingual sulcus
In order to capture _______ on border molding, patient swallows forcefully 2-3 times so that the floor of the mouth moves; tongue touches buccal vestibules and thumb by handle
Mylohyoid region
In order to capture _______ on border molding, patient stretches wide open and closes against manual pressure
Distal border and masseteric notch
