not only allow light transmission in the same manner as natural teeth [2,4,5] but also present reliable mechanical properties and soft tissue biocompatibility.
As is well known, the structural response of a concrete arch dam is greatly influenced by rock abutment
. From the design point of view, the rock abutment
with uniform mechanical properties and sufficient strength and stiffness is preferred.
The prosthetic abutments
of each type were carefully mounted on the implant analogs.
An undercut is basically an axially directed indentation in the body of the abutment
. It maybe so small as to be microscopic, but if a hard temporary material infiltrates into it, the temporary crown may lock into it.
The % age difference between the recorded values of seepage for main dam and calculated values for the model without abutment
is about 70% which is very high indicating the need for the model to be revised.
ANOVA one-way test showed there was significant difference abutments
height among groups with p=0,0001 (p<0,05).
Probing pocket depths of 3-5mm were found in 6(85.71) abutments
of short term wearers and 14(42.42) abutments
of long term wearers.
Akbari, "Crack survey in unreinforced concrete or masonry abutments
in short- and medium-span bridges," Journal of Performance of Constructed Facilities, vol.
Workers will also be constructing new concrete bridge abutments
, which support the ends of the bridge.
Dental implants and abutments
are usually fabricated out of commercially pure titanium, primarily because of its well-documented biocompatibility and mechanical properties.
of main dam and spillway area by dissolution of limestone.
Astra Tech AB, an implant dentistry and CAD/CAM abutments
company, has entered into a global strategic alliance with 3Shape A/S, the Danish-based provider of 3D scanners and CAD/CAM software solutions.