When you lose all your teeth, you are given the choice of wearing removable complete dentures, or fixed dentures that are placed over the implants.
Implant retained and supported overdenture
It is a common scenario where the person is having complain with the lower denture, as the lower jaw is smaller than the upper but many a times this problem lies even with the upper jaw when the bone loss is generalized. In such situations the dentures are fixed over 2-4 implants. They are mostly implant retained dentures that can be removed by the patient and replaced again in mouth on their own. An implant-retained overdenture is a removable dental prosthesis basically is given on the residual ridge but mainly gets retained by the implants and thus does not allow the denture to move during speaking or eating food.
Implant retained overdenture
Implant supported overdentures
Implant supported overdentures are placed over 4-8 implants. Implants support the whole prosthesis thus require a proper planning so that the implants should not get overloaded instead should work efficiently. All on 4 or 6 is a concept developed by Paulo Malo with straight and angled multi-unit abutments, to provide edentulous patients with an immediately loaded full arch restoration with only four implants. These are mainly given when the patient does not want to go for maxillary sinus lift or other osseous surgeries.
Implant Supported Hybrid Dentures
Implant supported metal-acrylic resin complete fixed dental prosthesis, originally referred to as a hybrid prosthesis has taken the place of problem causing unstable and uncomfortable conventionally fabricated complete dentures.
The primary factor that determines the restoration type is the amount of intra-arch space. In addition, other patient-relevant clinical parameters such as lip support, high maxillary lip line during smiling, a low mandibular lip line during a speech or the patient’s greater esthetic demands should be evaluated.
Hybrid prostheses have a great number of advantages including reducing the impact force of dynamic occlusal loads, being less expensive to fabricate and highly esthetic restorations. Furthermore, they may be successfully used by a combination of tilted and axially placed implants in partial edentulism in the posterior part of resorbed maxillae. However, food impaction, speech problems or difficulties in dealing with hygiene were reported by authors
Implant supported fixed teeth
Full mouth rehabilitation can be done using implants with individual cement retained crowns which combines the advantages of the screw retained restoration with the advantage of cement retained.