摘要:

Abstract –Endosseous dental implants have been inserted into dog jaw bone following two different implantation principles. Using the two‐step procedure, the implant is left submerged, covered by the mucoperiosteum for a healing period, before communication with the oral cavity is established. According to the one‐step procedure, this communication is established peroperativcly. In order to estimate radiographically the degree of bone resorption following the two‐step as compared to the one‐step procedure, the former was used on the right and the latter on the left side of the mandible in two dogs. Periodic identical intraoral radiographs revealed bone resorption in the neck area of all implants. After a 1‐yr period with bilateral bridges, the vertical resorption varied between 3 and 5 mm. No difference was found between the two methods concerning this bone resorption. The observation seems to be contrary to the general opinion on the matter, and pertinent investigations with the present model will be performed in a hum

ISSN:0909-8836    

DOI:10.1111/j.1600-0722.1984.tb00862.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

Abstract –Perception of thickness was estimated in subjects with osseointegrated oral implant bridges (OIB), complete denture wearers and subjects with complete natural dentitions. The test was performed with factory‐produced aluminum foil, 9, 20, 50, 100 and 150 μm thick, in the regions of the right second premolars, the canines and the central incisors. Occlusal perception did not differ between the three regions in any of the groups. Certain perceptiveness (>80% of tests correct) was found at the 20 μm level in subjects with natural dentitions, at the 50 μm level in OIB subjects and at the 100 μm level in subjects with a complete denture in one or both jaws. It is concluded that partial or complete lack of periodontal receptors is compensated for by other perceptive organs and that implant bridge therapy ad modum Brånemarkpartly restores occlusal sen

ISSN:0909-8836    

DOI:10.1111/j.1600-0722.1984.tb00863.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

Abstract –Galvanic corrosion of amalgam, induced by contact with a type IV dental casting gold alloy, was determined under simulated oral conditions in an electrochemical cell. The effect of a pellicle layer formed by 1 h exposure to saliva in the oral cavity was determined. Pellicle on the amalgam had no effect on the maximum corrosion rate or the 2 h corrosion charge, whereas pellicle on the gold alloy substantially reduced both these parameters of the conventional low‐copper amalgam; the corrosion of the high‐copper amalgam was less and was not influenced by pellicle form

ISSN:0909-8836    

DOI:10.1111/j.1600-0722.1984.tb00864.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY