PubMed · 5291858
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R G Jones. 1971. Fixed prosthodontics.. https://pubmed.ncbi.nlm.nih.gov/5291858/
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A statistical survey based on laboratory records was performed on the number of fixed and removable partial dentures fabricated at the dental hospital of Tokyo Medical and Dental University from April 1 to September 30, 1997. A comparison was also performed with a previous survey, which had been carried out in 1986, in order to detect any change and possible alterations in the near future. From the findings of this statistical survey, the conclusions were as follows: 1. A total of 2,478 fixed and removable partial dentures were fabricated during the six month period in 1997. 2. The 3-unit fixed partial denture (bridge) was most common (63.1%) and the number of bridges decreased as the number of units increased. 3. For the single missing tooth, a fixed bridge was more popular (81.0%) than a removable partial denture. 4. For two missing teeth, there was no difference between the number of fixed bridges and removable partial dentures. 5. The percentage of fixed and removable partial dentures, which were not covered by health insurance, decreased to a large extent in comparison with the survey in 1986.
Between the years of 1985 and 1989 we examined 9991 people. From the examined patients those people were selected, who lost their molars on one or both side, but they had no greater continuous edentate area in their dental arch than four teeth. The recorded data were evaluated separately by arches. 486 upper and 1568 lower arches filled the requirements of us. Patients wore in the upper jaw in 216 cases (46%) fixed prostheses with posterior cantilever pontic, in 26 cases (5%) combined prostheses (fixed + removable partial denture), in 18 cases (4%) removable partial dentures. 208 (45%) cases were untreated. In the lower arch in 417 cases (27%) fixed prostheses with a posterior cantilever pontic, in 97 cases (6%) combined prostheses (fixed + removable partial denture), in 57 cases (3%) removable partial dentures were constructed. 997 cases were (63%) were untreated. The results of this study indicate, that the treatment of distal edenate arches in the everyday practice is also verifying our prosthetic planning guidelines.
This article describes a procedure for making an interocclusal record for a remount procedure after tryin of the castings. This method can also be used for the initial mounting by substituting autopolymerizing acrylic resin copings for the metal castings.