Advantages:
1. Increased patient satisfaction because of the feeling that it is not completely edentate
2. Increased stability, retention and support
3. Affordable cost
4. Ability to use retentive connectors which increase retention
5. Possibility of easy corection or relining in case of loss of root
6. Reduction of bone resorption
7. Increase chewing ability
8. Easier recognition of the size and the texture of the food
9. Small lifting the lip area
10.No retainer adhesive used for dentures
11. There is no risk to fall at the time of speaking or chewing
Disadvantages:
1. Increased clinical experience required and laboratory work
2. Risk of root caries
3. Risk of root periodontal infection
Indications:
1. Patients with poor oral hygiene
2. Patients with extensive absorption of the alveolar bone
3. Patients with high abrasion of teeth
4. Patients with a few teeth
Contraindications:
1. When another prosthetic restoration offers better results
2. Patients who do not maintain good oral hygiene
3. When the roots have poor prognosis
Procedure:
1st visit:
• Taking oral impressions of the upper or lower jaw for the construction of the equators or the balls
2nd visit :
• Final cementation of the equators or the balls
3rd visit:
• Taking oral impressions of the upper or lower jaw
4th visit :
• Final impressions of the upper or lower jaw
5th visit:
• Wax Rim of the denture
• Color measurement with SpectroShade™ Micro
6th visit:
• Evaluation of the overdenture on natural teeth