TY  - JOUR
  - Ziada HM, Orr JF, Benington IC.
  - 1998
  - December
  - Journal of Prosthetic Dentistry
  - Photoelastic stress analysis in a pier retainer of an anterior resin-bonded fixed partial denture
  - Validated
  - ()
  - 80
  - 6
  - 661
  - 665
  - STATEMENT OF PROBLEM: A clinical situation may arise with 2 edentulous spaces and a single intact pier tooth. A dentist may restore these edentulous spaces with a long span resin-bonded fixed partial denture using the pier and the 2 terminal abutments for bonding. PURPOSE: This study analyzed the stresses induced in a pier retainer of an anterior resin-bonded fixed partial denture and determined the effect on a pier abutment. MATERIAL AND METHODS: Photoelastic materials were selected to represent the relative stiffness of 3- and 5-unit resin-bonded fixed partial dentures. The models were scaled to x2.5 to enhance visual analysis of the stress pattern. RESULTS: Isochromatic fringes indicated a stress magnitude at the proximolingual areas of the pontic in the 3-unit resin-bonded fixed partial denture. In the 5-unit resin-bonded prosthesis, the stress pattern appeared to involve the entire surface of the pier retainer. CONCLUSION: The use of pier abutments should be avoided and it is more favorable to use 3-unit resin-bonded fixed partial dentures.
DA  - 1998/12
ER  - 

@article{V33924190,
   = {Ziada HM,  Orr JF and  Benington IC. },
   = {1998},
   = {December},
   = {Journal of Prosthetic Dentistry},
   = {Photoelastic stress analysis in a pier retainer of an anterior resin-bonded fixed partial denture},
   = {Validated},
   = {()},
   = {80},
   = {6},
  pages = {661--665},
   = {{STATEMENT OF PROBLEM: A clinical situation may arise with 2 edentulous spaces and a single intact pier tooth. A dentist may restore these edentulous spaces with a long span resin-bonded fixed partial denture using the pier and the 2 terminal abutments for bonding. PURPOSE: This study analyzed the stresses induced in a pier retainer of an anterior resin-bonded fixed partial denture and determined the effect on a pier abutment. MATERIAL AND METHODS: Photoelastic materials were selected to represent the relative stiffness of 3- and 5-unit resin-bonded fixed partial dentures. The models were scaled to x2.5 to enhance visual analysis of the stress pattern. RESULTS: Isochromatic fringes indicated a stress magnitude at the proximolingual areas of the pontic in the 3-unit resin-bonded fixed partial denture. In the 5-unit resin-bonded prosthesis, the stress pattern appeared to involve the entire surface of the pier retainer. CONCLUSION: The use of pier abutments should be avoided and it is more favorable to use 3-unit resin-bonded fixed partial dentures.}},
  source = {IRIS}
}