SAI SMILE DENTAL CARE CLINIC
DENTAL HEALTH EDUCATION
KNOW DENTAL PROBLEMS
KNOW TREATMENT OPTIONS
CAST PARTIAL DENTURE
Over denture is a removable denture [complete or partial ] which seats over modified teeth or implants .
WHY OVER DENTURES ?
WHAT IS THE LOGIC BEHIND IT ?
1.When all natural teeth are present biting force is 100 % , when you start loosing teeth biting force start reducing . When posterior teeth [molars and premolars ] are removed biting capacity reduces drastically .
when all teeth are removed , biting capacity is hardly 10 % . Even if patient is eating , he has to manage biting .
when complete dentures are used biting capacity is 20 to 40 % .
When over dentures are used biting capacity is 40 to 60 % . Sometimes up to 80 % . And implant supported over dentures even up to 90 % .
2 . When teeth are present in the mouth , and in a healthy condition , bone remains around teeth so increased seat for dentures for additional years .
3. Few teeth which are retained in the mouth are used to retain dentures , so good to excellent retention and stability to dentures .
This helps in :- 1. Increased patients compliance . 2. Better comfort . 3. Less irritation to soft tissues. [ less denture sores ] 4. Increased biting force . 5. No wires which hurt . 6. Increased confidence due stable dentures .
4. When teeth are present in the mouth , it gives proprioseptive senses[where jaw is located] to the brain .
5. Retained teeth are modified to take more load .
6. Psychological benefit to patient .
HOW TEETH ARE MODIFIED ?
WHY TEETH ARE MODIFIED ?
If teeth have suffered due to gums problem , usually they are mobile [ isolated tooth also shows mobility due to OVERLOAD ] these teeth becomes reasonably strong after modification . These teeth can take biting load in a better way
MODIFICATION : 1 . Treatment for gums . 2 . Root canal treatment done so that tooth can be reduced . Root length in the bone is same , when crown length is reduced , mobility reduces because of improved ratio of root : crown . 3 . Attachments can be given to increase retention .