Indiana University-Purdue University Indianapolis (IUPUI) / The purpose of this investigation was to evaluate the
association between the depth of a carious lesion and the
sclerotic dentin deposited beneath a calcium hydroxide methyl
cellulose base material. The sample chosen consisted of teeth
with deep caries and possible pulp exposure, as evidenced by
a critical radiographic examination. Clinical procedures
consisted of a preoperative serial radiograph, followed by
complete caries removal. A barium sulphate radiopaque solution
was then applied to the base of the preparation, followed by
a second serial radiograph. The barium sulphate was removed
and a calcium hydroxide methyl cellulose base was applied and the tooth restored with a silver amalgam alloy. Subsequently
one, three, six, and nine month serial radiographs were
taken postoperatively. Calcification change of sclerotic
dentin overlying the pulp was measured in relation to pulpal
floor width by the television instrumentation.
The conclusions of this study are as follows:
1. A calcium hydroxide methyl cellulose base material
acts as a "trigger mechanism," in deep cavities, stimulating the deposition of sclerotic dentin.
2. The thinner the initial pre-restored pulpal
floor, the more rapid and dramatic is the postoperative
pulpal floor increase in width, which
is apparently a protective pulpal response.
3. During the periods of time when a significant
increase in pulpal floor width was noted, the
percent change in calcification of this area decreased. Conversely, when little pulpal floor width increase occurred, the percent change in calcification increased.
| Identifer | oai:union.ndltd.org:IUPUI/oai:scholarworks.iupui.edu:1805/4135 |
| Date | January 1967 |
| Creators | Geller, Julian Sheldon, 1941- |
| Source Sets | Indiana University-Purdue University Indianapolis |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
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