Manuals_files/CD Manual 12.pdf - Removable Prosthodontics

Border Molding - 22
4. The lower border should be at or slightly below the mylohyoid ridge but not deeply
into the undercut below the ridge, particularly if it is sharp. (This minimizes,
abrasion and discomfort around the mylohyoid ridge)
5. The denture should not lift with normal tongue movements
Anterior lingual
1. Have patient lift tongue to palate, to corners of mouth and stick tongue out while
holding tray in place – denture should not lift by normal tongue movements
2. Do not cover sublingual gland orifices
Criteria for Border Molding-Maxillary
! Tray stays in place at rest and during slight manipulation of tissues
! Tray exhibits firm suction when an attempt is made to remove it
! Labial and buccal flanges extend into height of vestibule
! No tray is showing through border molding
! Flange thickness generally no greater than 4-5 mm (unless severely resorbed)
! Patient feels no areas of discomfort
! Posterior palatal seal is properly covered
! Frenal areas properly contoured
! Flanges smooth, continuous; rolled and not sharp
! Flanges relatively symmetrical on contralateral sides
Criteria for Border Molding – Mandibular
! Tray stays in place at rest and during slight manipulation of tissues
! Tray is relatively stable when a vertical force is applied (within constraints of anatomy)
! No tray is showing through border molding
! Flange thickness generally no greater than 4-5 mm
! Patient feels no areas of discomfort
! Labial and buccal flanges extend into depth of vestibule
! Frenular areas properly contoured
! Flanges smooth, continuous; rolled and not sharp
! Flanges relatively symmetrical on contralateral sides
! Covers retro-molar pads
! Does not extend past buccal shelf
! Lingual flanges at or slightly below mylohyoid ridges
! Posterior extensions of lingual flanges extends into retromylohyoid spaces
! Palpation over masseter reveals no over-extension