RESIDUAL RIDGE RESORPTION:

¤ Severe/fast in 6 months (to 1 year)
¤ That’s why the patient complains of the loose denture during this period
¤ Pattern in Max- results in the short maxilla
¤ Pattern in Mand- results in no change
¤ Therefore CD patients have Class 3 ridge which is expected
¤ Mand ridge resorption is 4 times faster than Max
¤ Maxillary – upward & inward direction
¤ Mandibular – outward & downward direction
¤ Alveolar bone function – to hold teeth, therefore alveolar bone resorbs only after teeth loss OK!

FACTORS INCREASING RIDGE RESORPTION:
1. Diabetes
2. Bruxism
3. Osteoporosis ( especially females- during menopause )

NB: Female patients at Menopause (40yrs)
- Pain due to xerostomia
- Loose denture due to ridge resorption related to osteoporosis