1. IN THE NAME OF GOD

2. Zarb-Ch: 5, page: 77-91
dr_shimaghasemi@yahoo.com
Improving denture_bearing foundations for
edentulous patients

3. 1. Preprosthetic nonsurgical methods
2. Preprosthetic surgical methods

5. 1. PREPROSTHETIC NONSURGICAL METHODS
 Managing traumatized tissues
 Occlusal correction

6.  Managing traumatized tissues:
 Removal of dentures from the mouth:
 48- 72 h before impression
 24 h before each appiontment
 Temporary soft liners
 (finger or toothbrush massage, esp. in edematous and
enlarged tissues)

7. Occlusal correction
 First determine an optimal VDO (ridge relations
are improved)
 Occlusal adjustment

8. 2. PREPROSTHETIC SURGICAL METHODS
A. Conditions that preclude optimal prosthetic
function:
1) Hyperplastic ridge, Epulis fissuratum, Papillomatosis
2) Frenullar attachment, Pendulous maxillary toberosity
3) Bony prominences, Undercuts, Spiny ridge, Tori
4) Pressure on mental foramen
5) Ridge parallelism
B. Enlargement of denture-bearing areas:
A. Vestibuloplasty
B. Ridge augmentation
C. Discrepancies in jaw size
D. Replacement of tooth roots with osseointegrated
dental implants

9. 1. Hyperplastic ridge, Epulis fissuratum, Papillomatosis

11. Frenullar attachment, Pendulous maxillary toberosity

14. Bony prominences, Undercuts, Spiny ridge, Tori

19. Pressure on mental foramen

20. Spiny ridge

21. B. ENLARGEMENT OF DENTURE-BEARING AREAS:
VESTIBULOPLASTY

22. B. ENLARGEMENT OF DENTURE-BEARING AREAS:
RIDGE AUGMENTATION

24. REPLACEMENT OF TOOTH ROOTS WITH
OSSEOINTEGRATED DENTAL IMPLANTS