牙醫學(五)（包括全口贗復學、局部贗復學、牙冠牙橋學、咬合學等科目及其相關臨床實例與醫學倫理）題庫下載題庫

They can be either opposing a fully dentulous maxilla or opposing a maxillary partial denture. In any case,there will be severe ridge resorption of the edentulous mandible. This is bacause of two reasons:

 1. The constant movement of the tongue adds to the forces on the residual ridge increasing the amount of resorption. 

2. The amount of firmly attached mucosa to the denture, bearing area is less in the mandible than In the maxilla

. ……Anyhow some authors firmly believe that a mandibular single denture have a very poor prognosis.

Textbook of Prosthodontics, by Deepak Nallaswamy P.2...

They can be either opposing a fully dentulous maxilla or opposing a maxillary partial denture. In any case,there will be severe ridge resorption of the edentulous mandible. This is bacause of two reasons:

 1. The constant movement of the tongue adds to the forces on the residual ridge increasing the amount of resorption. 

2. The amount of firmly attached mucosa to the denture, bearing area is less in the mandible than In the maxilla

. ……Anyhow some authors firmly believe that a mandibular single denture have a very poor prognosis.

Textbook of Prosthodontics, by Deepak Nallaswamy P.255