. The Dental cosmos. , havinga full set of normally occluding picture on the right, b, is from aperson of seventy-five years or more, allthe teeth having been lost and the alve-olar process resorbed long before comparison of these two skulls gives agood idea of how much more importantthe alveolar process is than the truebone in building out the lips and face inthat region. Fig. 12 shows the under side of thesesame skulls, that on the right indicatingabout the true size of the upper jawproper, while that on the left shows ajaw of about the same size plus the teethand alveolar
. The Dental cosmos. , havinga full set of normally occluding picture on the right, b, is from aperson of seventy-five years or more, allthe teeth having been lost and the alve-olar process resorbed long before comparison of these two skulls gives agood idea of how much more importantthe alveolar process is than the truebone in building out the lips and face inthat region. Fig. 12 shows the under side of thesesame skulls, that on the right indicatingabout the true size of the upper jawproper, while that on the left shows ajaw of about the same size plus the teethand alveolar process, which comes and goes with the teeth. If we look at theroof of the month in the pictures on theleft, we see the bone formed by thepalatal processes of the maxilla and thehorizontal processes of the palate is the suture through the center ofthis roof that some of the orthodontistsand rhinologists claim they can open byapplying a force to the superstructurewhich is temporarily fixed upon it. A Fig. Under surface of maxilla shown in Fig. 13. writer in the July issue of the DentalCosmos says that the space producedbetween the bones is afterward filledwith cartilage or new bone. I have beenunable so far to obtain proof that thesuture has been opened and filled withnew bone. The supporters of this theoryhave given several reasons for their be-lief, but I fear these wrould not be ac-cented by a jury composed of anatomists,physiologists, and pathologists. One of the proofs that these men offerto show that the suture in the roof of themouth has been opened is that by ex-panding the arch the space between thecentral incisors can be increased. Theteeth are set up in comparatively softbone, with its interlacing fibers; these,however, do not cross the median linefrom one side to the other, so someseparation of the process may take place 340 THE DENTAL COSMOS. at this central line, but it does not ex-tend to the true suture between themaxilla? proper. I am of the opinio
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentist, bookyear1912
